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DIGITAL EQUIPMENT CORPORATION

typeset-8 systems—
positive logic
...dedicatedtothe

maintenance manual

futureofGraphicArts

EflEflflEfl

DIGITAL EQUIPMENT CORPORATION

typeset-8 systems—
positive logic
...dedicated to the
future of

Graphic Arts

maintenance manual

DIGITAL EQUIPMENT CORPORATION

typeset-8 systems—
positive logic
...dedicated to the
future of Graphic Arts

maintenance manual

5-.

mnanuan

DIGITAL EQUIPMENT CORPORATION

_. /

typeset-8 systems—
positive logic
...dedicated to the
future of Graphic Arts

maintenance manual

DIGITAL EQUIPMENT CORPORATION

typeset-8 systems—
positive logic
icatedtothe
future of

Graphic Arts

maintenance manual
,

typeset-8 systems—+positive logic
maintenance manual

DEC-08-HMMPA-A-D

digital equipment Corporation maynard. masSachusetts
-

lst Edition October 197 2

The material in this manoal is for informatiom
ai purposes and is

notice.

subject to change without
’

The following are trademarks of Digital Equipment

Corporation, Maynard, Massachusetts:
DEC

PlDP

FLIP CHIP

FOCAL

DIGITAL

COMPUTER LAB

CONTENTS

Page

CHAPTER 1

INTRODUCTION

System Description
Specifications

1-2

.............................

1-3

................................

CHAPTER

INSTALLATION

2.1

CablingandTerminations

2.2

Power Connections

2.3

Installation Verification

CHAPTER 3

OPERATION AND PROGRAMMING

3.1

Program Instructions

3.2

Data Formats

3.3

Controls and Indicators

3.3.1

PR68B High-Speed Paper-Tape Reader

...................

3.3.2

PR68D High-Speed Paper-Tape Reader

...................

3.3.3

PR68DA High-Speed Paper-Tape Reader

3.3.4

PA63 Multiple Reader/Punch Control and Interface Unit

3.3.5

PP67C/D High-Speed Paper-Tape Punch

CHAPTER 4

THEORY OF OPERATION

4.1

PA63 Multiple Reader/Punch Control and Interface

4.1.1

Power Up

4.1.2

IOT Decoder for Reader Control

4.1.3

Reader Selection

4.1.4

Tape Reading

4.1.5

IOT Decoder for Punch Control

4.1.6

PunchSeletion......................

4.1.7
4.2

Tape Punching
PA68F Single Reader/Punch Control and Interface Unit

4.2.1

PowerUp..........

..........

2-1

......

2-5

.......

2-5

..........................

3 -1

.........

...................
_

KP“

............

3-3

........

3-3
3-4
3—5
'3-5

.....

3-7

.........

Unit

.........

4—2

..................................

...........

4—2

..............................

4-2

..........

.......

4—3

......................

4—5

“

.......................

.........

4—6

...............................

4—6

..........

4—8

......................

IOT Decoder for Reader Control

Tape Reading

4.2.4

IOT Decoder for Punch Control

4.2.5

4.4.2

TapePunching................
PR68B High-Speed Paper-Tape Reader
PR68D High-Speed Paper-Tape Reader
Tape Transport Mechanism
Photoelectric Tape Reader

4.4.3

NTTA Reader Selection

4.5

PR68DA High-Speed Paper-Tape Reader

4.6

PP67C/D High-Speed Paper-Tape Punch

4.6.1

Motor Control

4.6.2

Solenoid Control

4.4.1

4.2.3

4.4

3-1

...........................

4.2.2

4.3

............. ..

'..4-8

......................

...............

................

......................

...............

......

4 -13

4—15
4-1 5

...............

4—15

..................

4-16

............

’

.......................

........

..............................

iii

4—12
4—13

.........................

4—9
4-1 1

..........

.............

.........

4—8

4-16

.4-17
4-18

CONTENTS (Cont)
I

Page
CHAPTER 5

ADJUSTMENTS

5.1

M401 Reader Clock

5.2

M710 Punch Control

5.3

PR68B High—Speed Paper-Tape Reader

5.3.1

Static Adjustment

5—1

.............................

.................

5-1

..................

5-4

...........................

5-6

...........

5.3.2

5.6

Dynamic Adjustment
PR68B/DA High—Speed Paper—Tape Reader
1
Tape Guide
Slide
Level
Tape
.
Lamp Selection and Voltage
and
Lens
Wheel
Condensing
Sprocket
G918 Amplifier Adjustment
PP67C/D High-Speed Paper-Tape Punch
Punch Mechanism Adjustment
LowTapeAdjustment........'.............,
4 ms Change Reader Delay

5.7

ISecond Change Punch Delay

5.8

Mixed Tape Levels

CHAPTER 6

MAINTENANCE

6.1

Test Equipment and Diagnostic Programs

6.2

Preventive Maintenance

6.3

SpareParts.....................

5.4

5.4.1

5-9

............................

5-10

.................

5-12

...............

.................

5.4.2
5.4.3
5.4.4
5.4.5
5.5

5.5.1
5.5.2

............

.........

5—12

.....
.

5—12

................

5-13

.............

5-14

.......

..............

5~l 6

..................

5-16

.....................

......

5—17

...................

5-18

5-19

...........

5-20

’

.......................

......

................

........

............

6-1

6-3
6—3

APPENDIX A GLOSSARY OF TERMS
APPENDIX B ENGINEERING DRAWINGS
B. 1

Engineering Drawings

...............

.......

B-l

ILLUSTRATIONS
I

Title

Figure No.
1-1

Page

,
,

l-l

2-3

Typeset-8 System—Positive Logic
Multiple Reader/Punch System
Single Reader/Punch System
PR68B Reader/Interface Cable Interconnection
PR68B/DA Reader/ Interface Cable Interconnection
PP67C/D Punch/Interface Cable Interconnection

2-4

M978 Connector Module

..........................

2-5

M979 Connector Module

..........................

2-5

3-1

Paper-Tape Formats

............................

3-2

PR68BReader.............
PR68D/DAReader
PA63 Multiple Reader/Punch Control
PP67C/ D Punch Controls

1-2
1-3
2-1
2-2

3-3
3-4
3-5
4-1

.......................

........................

............

..................

1-3

2—2

2-3
2-4
2-4

3-3
3-4

...............

3-5

...............

3-7

..................

4-3

.
'

...........

Tape Reader Timing Sequence for PA63

1-2

ILLUSTRATIONS (Cont)

Figure No.

Page

Title

5—1

Tape Punch Timing Sequence for PA63
M710 Punch Control for PA63,Simplified Logic Diagram
Tape Reader Timing Sequence for PA68F
Tape Punch Timing Sequence for PA68F
M710 Punch Control for PA68F, Simplified Logic Diagram
G930 Nontorn Tape Alloting Module, Simplified Logic Diagram
Punch Motor Control, Simplified Functional Diagram
Punch Solenoid Control, Simplified Functional Diagram
M401 Reader Clock Adjustment Location

5-2

Clock Pulse Waveform

5-3

M710 Punch Control Adjustment Location

5-4

Punch Done Pulse Waveform

5-5

PR68B Reader Adjustment Location

5-6

6-Level Guide and Reader Head Adjustment

5-7

Reader Lamp and Condensing Lens Adjustment

5-8

Lateral Adjustment of Sprocket Wheel

5-9

Axial Adjustment of Sprocket Wheel

5-10

Spring Arm Adjustment for PR68B

5—1 1

Relationship of PR68B Reader Data Pulse and Strobe Pulse for

4—2

4-3
4—4

4—5
4—6
4—7
4—8
4—9

4-5

......

4-9

4-11

4-12
4—14

......

4-7

.....

............

4-17
4-19
5-2

.................

...................

..................

.............

5-2

.1.

.....

5-3
5-3

5-4

PA63 and PA68F
5-12

........

5-7

5—7

................

5-8

.....................

5-8

.............

5-9

..............................

5-15
5-16

PunchSolenoidWaveform

5—17

M302 Dual Delay Multivibrator Module

5-18

Change ReaderDelayWaveform
Change Punch Delay Waveform

5-14

5-6

.........

PR68D/DA Reader Adjustment Location
Relationship of Data Hole and Photocell for PR68D/DA
SpringArm Adjustment forPR68D/DA
Relationship of PR68D/DA Reader Data and Strobe Pulse

5—13

........

5-10

.....

5—17

5-19

5-13
5-14
5-16

................

......

5-19

...................

5-19
5-20

TABLES

Page

Title

Table No.

1-1

PA63 Specifications

1-2

1—5

PA68FSpecifications
PR68B Specifications
PR68D/DA Reader Specifications
PP67C/D Punch Specifications

2-1

Reader and Punch Cables

3-1

Program Instructions
PR68B Reader, Control and Indicator
PR68D Reader, Control and Indicator
PR68DA Reader, Control and Indicator
PA63 Reader/Punch Control, Controls and Indicators
PP67C/D Punch, Controls
Test Equipment and Tools
Diagnostic Programs
Typesetting Configuration Test Programs
System Exerciser Overlays
Typesetting Spares

1—3

1-4

3-2
3-3

3-4
3-5

3—6
6-1
6-2
6-3

6-4
6-5

1-4

............................

.......

......................

....................

1-4

1-5

.....

,
,

............................

..........

...................

1-5
1-6
2-2

3-1
3-3
34

..................

3-5

...........

3-6

3-8

6-1

............................

6-1

.................

......

.........

.............

.........................

6-2
6—3

6-4

TABLES (Cont)
Figure No.

Title

6-6

Parts List For PR68B

B- 1

Index of Master Drawing Lists

........................

ooooooooooooooooooooooo

FOREWORD

This manual contains maintenance information primarily for use by DEC personnel servicing the Typeset-8

System.

The information

provided is sufficient for a technician or engineer familiar with the operation,

programming, and maintenance of this type of equipment, and presupposes a thorough understanding of DEC
logic.
‘

This document covers overall system operation, as well as a detailed logic description of portions of the system

unique to typesetting. The major portion of this document describes the operation of the logic circuits that

interface the high-speed paper-tape readers and punches with theproCessor, and the operation of the PR68B and
BR68D/DA High~Speed Paper~Tape Readers. The following documents supplement the information contained in
this manual.
I

/’\‘

Title

Document No.

PDP—SE Maintenance Manual

DEC~8E-HRlB-D

‘

PDP—SI Maintenance Manual

—

DEC-8E-HR3B-D

DEC-SI-HRlA-D
'

PDP-BL Maintenance Manual
DEC Logic Handbook
Small Computer Handbook
High—Speed Tape Punch Set, Technical Manual
High-Speed Tape Punch Set, Parts
Motor Units, Technical Manual
DCO4 Wire Service Interface Maintenance Manual
LPG-8 anLine Photocomp Interface Maintenance

DECvBL-HRlB-D
1969—1972 Editions

‘

l969-1972 Editions

Teletype. Bulletin 215B
Teletype Bulletin 1154B
Teletype Bulletin 295B
~

—

Manual

Typesetting Tech Tips

T777

.Teletype is

registered trademark of Teletype Corporation.

-—~

1‘
a’

\‘P/

._.,/

CHAPTER 1

INTRODUCTION

Typeset-8

combined

capability to newspapers,

General-Purpose Computer

software-hardware
book

system that provides high-speed perforated—tape

production

publishers, and typesetting companies. The system comprises a DEC PDP~8

equipped with a Teletype keyboard, and up to sixteen paper-tape readers and

punches (Figure 1-1).
The system converts unjustified, unhyphenated .6- or 8-1evel perforated paper tape to formatted, justified paper

tape. The output tape produced operates hot-metal linecasting machines or photocomposition machines.

(gr/232‘“

Figure 1-1 Typeset-8 System

1.Any positive bus PDP-8 computer may be used in negative logic systems.
l-l

—

Positive Logic

1.1 SYSTEM DESCRIPTION

The basic Typeset-8 System comprises the following major components, interconnected as shown in Figures 1~2
and 1-3.

PDP—SE, 81, 8L Computers
PA63 Multiple Reader/Punch Control and Interface Unit
PA68F Reader/Punch Control and Interface Unit

PR68B High~Speed Paper-Tape Reader
PR68D High—Speed Paper-Tape Reader
PR68DA High-Speed Paper-Tape Reader
PP67C High-Speed Paper-Tape Punch
PP67D High-Speed Paper-Tape Punch

Multiple reader and punch systems are equipped with the PA63 Reader/Punch Control, and up to 16 sets of
readers and punches. The PR68D Readers are used with the PA63 Reader/Punch Control to obtain nontorn tape

alloting (NTTA) operation. Single reader and punch systems utilize the PA68F Reader/Punch Control and the
PR6SB Reader or PR68DA Reader, which are not equipped for NTTA operation.

The basic processor employs a ferrite-core memory with a 4096 12-bit word capacity. This memory serves as an

operating area where input data from an unjustified tape is stored and assembled into justified lines. Portions Of
also set aside for storage of program inStructions and a hyphenating dictionary. Expanded
memory options are available to permit the storage of larger dictionaries, if desired. DECtapes and DECdisks are

the memory

are

included in the system when hot metal and text photocomposition programs are both used, or when display

photocomposition programs are used. These options provide a larger storage capacity and correspondingly higher
operating speeds.

:l-PABB
DATA

READER/PUNCH CONTROL

-_T
é

PDP-BI

POP—8L,
OR
POP—8E
PROCESSOR

CONTROL!

PR688/D
TAPE
READER

‘

'
I
DATA

READER
INTERFACE

READER
CONTROL

*‘

-—-

PUNCH
INTERFACE
UNrT

PUNCH
CONTROL
UNIT

Piggé’o
PUNCH

I
l

(2_16)

__l
08-0773

Figure l~2 Multiple Reader/Punch System

A system tape (6-1evel, binary, perforated paper tape or DECtape) loads these programs and data into memory

prior to system use. The system tape also furnishes a glossary of the specific control codes used by the operator
to specify the desired type style, type size, column indentions, line length, and special formatting instructions.

PA68F READER/PUNCH CONTROL

I
DATA

‘

I
are

0R
RDP-se
PROCESSOR

|
(:ONTROL!"

READER

UNIT

5
H

I
a.

tNTERFACE

UNIT

e
L

I
|

READER

"T CONTROL

‘

DATA

‘

—-

PUNCH

CONTROL

INTERFAcE

'
I
I
|
'
I

UNIT

.._
,

TAPE

READER

PPS-“VD

TAPE
PUNCH

PRGSB/ D A

I
08-0774

Figure 1—3 Single Reader/Punch System

A RIM (Readin Mode) program is set into the processor through the EDP—8 control panel toggle switches. This
program loads the system tape. The 6-1evel RIM Loader is described in full later in this chapter.

Loading the RIM Loader and, subsequently, the system tape prepares the typesetting system for prooesSing input
tapes. Operators use keyboard-controlled paper-tape perforators to generate input tapes (unjustified,
.

unhyphenated tapes) from final copy. The input tape contains the material to be typeset, punched in 6- or
8—1evel codes, without regard for‘line endings er hyphenation. The operator must include in the initial portion of
the input tape the control codes that inform the processor of the type face, type size, and column indention

required for the material that follows. Then the material to be typeset is punched onto the tape without regard
I

for line endings.

When the input tape is complete it is placed. in a reader and read into the computer. The PDP-8 senses a reader

flag output and starts the data transfer process.
The processor assembles the material into lines, as Specified by the line~length codes, determines the line-end

point, hyphenates and/or inserts additional space codes between words and, if necessary, between letters, and
retransmits

the

data to

punch. This

process

produces

output tape for hot-metal linecasting

photocomposition machines.
The system simultaneously reads and punches tapes at

rate of 110 characters per second. This provides a

throughput corresponding to approximately 12,000 lines per hour. Display copy throughput is slower.
1.2 SPECIFICATIONS

The physical structure, environmental specifications, and power supply requirements of the Typeset-8 System
are

presented in Tables 1-1 through 1—5.

13.

Table 1-1
PA63 Specifications
1

‘

Specification
Physical Dimensions
Height:

Description

8.68 in.

Width:

19.0 in.

Depth:

20.75 in.
115 Vac i 10%, 60 Hz i 5%, 30A

Power Requirements

H721

798

+5V i .25V

+30V-i 3V

Power Supplies

(internal)

-15V i 1V

Logic Levels

Input

Output

+2V to +3.6V +2.4V to +3.6V

Logic 1 (H)
Logic 0 (L)

+.8V to GND

+0.4V to GND

20°C to 50°C

Temperature

68°F to 122°F
20% to 95% without condensation

Humidity

Table 1-2
PA68F Specifications

Specification

Description

Physical Dimensions
Height:
0

Width:

5.19 in.
.

19.00 in.
18.00 in. (including H716 Power Supply)

Depth:
Power Requirements

115 Vac, 60 Hz i 5%, 20A

Power Supplies

(internal)

H716

799

+5V 3: .25V

+30V i 3V

—15V :t 1V
8

Logic Levels
Logic 1 (H)
Logic 0 (L)

+2V to +3.6V -+2.4V to +3.6V

Temperature

20°C to 50°C

Input
+.8V to GND

Output
+0.4V to GND

68°F to 122°F

Humidity

20% to 95% without condensation

\,,,

Table 1-3
PR68B Specifications

/¢”\.

Description

Specification
Physical Dimensions
Height:

6 in.

8~1/ 4 in.
10-1/4 in.

Width:

Depth:
Weight:

4.5 lb

Tape Characteristics

Refer to the Typeset-8 System User’s
Guide.

Power Requirements

No external ac power required.

Power Supplies

DC power is supplied by the reader/

(internal)

punch control.

Logic Levels
Logic 1 (H)
Logic 0 (L)

+2.4V to 3.6V

Temperature

+0.4V to GND

125°C to 44°C

‘

55°F to 110°F
20% to 95% Without condensation

Humidity

Table 1—4

PR68D/ DA Reader SpecificatiOns
DesCription

Specification
Physical Dimensions
Height:

7.15 in.

Width:

11 in.

Depth:

8.5 in.

Weight:

4.5 lb
Refer to the Typeset-8 System User’s

Tape Characteristics

Guide.

Power Requirements

No external ac power required.

Power Supplies

DC power is supplied by the reader/

(internal)

punch control.

Logic Levels
Logic 1 (H)
Logic 0 (L)

+2.4V to 3.6V

Temperature

68°F to 122°]?

+0.4V to GND

20°C to 50°C
20% to 95% without condensation

Humidity

1-5

Table 1-5

PP67C/D Punch Specifications
DeScription

Specification
Physical Dimensions
Height:

12 in.

Width:

8 in.

Depth:
Weight:

16.5 in.

Tape Characteristics

24.5 lb
Refer to the Typeset-8 System User’s

Guide.
Power Requirements

llSVi 10%, 50 or 60 Hz;L 1% at 2A

'(9A surge)
Power Supplies

DC power is supplied by the

(internal)

reader/ punch control.

Logic Levels
Logic 1 (H)
Logic 0 (L)

+30V

Temperature

GND

68°F to 122°F
20°C to 50°C

Humidity

20% to 95% without condensation

CHAPTERZ

INSTALLATION
_

The information contained herein is necessary to install the Positive

systems

are

Logic Typeset—8 System hardware. The

completely configured at the factory before being shipped to the customer’s site. Once the system is

set up, it should be connected to the primary ac power source and the reader and punch cables connected. All dc

power

supplies and processor bus interface connections are installed at the factory. System add-ons should be

installed

directed in the

applicable maintenance manual for the processor, peripheral, or terminal being

installed.

2.1 CABLING AND TERMINATIONS

The PA63

and

the PA68F

maintenance manuals.

are

connected to

the processor bus

described in the

applicable processor

Signals are transmitted from the PA63 and the PA68F to the PR68D/DA through a

BCOlH Cable that plugs into

connector slot. The BCOIH Cable (D-UA-BCOlH-O—O) is a 24-conductor cable

terminated by an M978 Connector Module (DCS-M978~0-l) that plugs into the connector slot and an Amphenol
connector that

plugs into the PR68D/DA. Signals are transmitted from the PA63 and the PA68F through a

70-5893 cable that plugs into a connector slot. The 70-5893 cable is a 24-conductor cable terminated on both
ends by an M908 Connector Module.

Signals

are

transmitted

from

the

PA63

and

the

PA68F

the

PP67C/D through

BCOlF

Cable

(D-UA-BCOlF—O-O) that plugs into a connector slot. The BCOlF Cable is a 24-conductor cable terminated by an
M979 Connector Module (D-CS-M979-0-1) that plugs into the connector slot and an Amphenol connector that
'

plugs into the PP67C/D.
'

The interface connections and signals are shown in Figures 2-1 through 2-3. Cable types and lengths are listed in

Table 2-1.

The M978 module (Figure 2-4) on the reader cable contains. bypass capacitors for the +5, +30, and -15 Vdc lines.
Italso contains a low pass filter and a diode clamp for each data line. The bypass capacitors and filters suppress

switching transient noise spikes that could cause false triggering in the control. The diode clamps limit the data
levels to -O.7 Vdc minimum and +5.7 Vdc maximum, preventing damage to the M216 modules.

The M979 module (Figure 2-5) on the punch cable contains bypass capacitors for the +5 Vdc line and +30 Vdc

switched line. It also contains a low pass filter for each of the data lines. These capacitors and filters suppress
transient switching noise spikes that could cause false triggering in the control. Suppressing the noise spikes also

compensates for data level degradation due to transmission line loss. Consequently, the punches can use cables of
up to 250 feet in

length without readjusting- the punch solenoids, if the solenoids are properly adjusted. The

diodes on the M97 9 module do not affect the operation of the control.

2—1

PASS/PAGBF
M908

PRGBB
(READER 1-TYPICAL)

LUG

+5v

—15v

GND

RD HOLE O H

RD HOLE

2 H

READER LAMP

OUT OF TAPE H

RD HOLE 3 H

RD HOLE

5 H

RD HOLE

e H

RD HOLE

7 H

‘

>Geoa PHOTO AMPL

4 H

‘

SDA11) L

SDA(O) L

SDBH) L

30310) L

+3ov

NOT USED

—15v

+5v

+30v

LTD

MOTOR

GND

+30v

READER

LAMP

GND
READER CABLE
70—5893

08-0788

Figure 2~l PR68B Reader/Interface Cable Interconnection

Table 2-1
Reader and Punch Cables

Length

Type

PR68B Reader

PR68B/DA Reader

PP67C/D Punch

70-5893

BCOlH—25

BCOlF-ZS

NOTE

BCOIH—SO

BCOlF-SO

50 ft

Cable length

BCOlH—75

lBCOlF-75

75 ft

is specified

BCO lH—AO

BCOlF-AO

100 ft

250

BCOlH—A2

lBCOlF-A2

120 ft

BCOlH—AS

BCOlF—AS

150 ft

BCO 1H—A7

BCO l F—A7

170 ft

BCO lH—BO

BCO l F-BO

200 ft

BCO lH—B2

lBCOlF-B2

220 ft

BCOlH—BS

BCOlF-BS

250 ft

in ft.
max.

——

25 ft

PR68D/DA'

PA63/PA68F

(READER, 1-TYPICAL)

M978
PIN

AMP

PLUG

LUG'

+5v

~15V

GND’

RD HOLE O H

RD HOLE

RD HOLE 2 H

OUT OF TAPE H

RD HOLE 3 H

RD HOLE 4 H

READER LAMP

1 H

RD HOLE 5 H

RD HOLE 6 H

RD HOLE 7 H

SDA(1) L

SOMO) L

30311) L

808(0) L

+3QV

NTTA L

+15v

+5v

+3ov

GND

+3ov

SEL RDR H

040301pr-

¥6918 PHOTO AMPL

o“?

MOTOR

6930 NTTA

READER CABLE
BCO1H

NOTE
NTTA L

is not used

PRGBDA.
08-0787

Figure 22 PR68D/DA Reader/Interface Cable Interconnection

PAGE/PAGBF

PP67C/D

M979,

(PUNCH 1 TYPICAL)

LUG

1
,

HOLE 1 L

HOLE 2 L

HOLE a L

HOLE 4 L

HOLE 5 L

HOLE 6 L

>PUNCH SOLENOIDS

‘

.
1

HOLE 7 L

HOLE O L

‘

"'1

’

FEED HOLE L

”CV

6915 PUNCH CONT

ONO

+30v

SYNC PNCKUP

MOTOR START L

ONO

6915 PUNCH CONT
,
\

+aov

‘

+3ov

ONO

1
,

ONO

+30v

NOT AVAIL H
.

+5v

1
.

flmTT’gfi‘TCH

ONO

+5v

SYNC PUNCH H

G915 PUNCH CONT
SYNC PICKUP

‘

PUNCH CABLE BC01F
'

NOTE~
NOT AVAIL

is used on PA68F.

Figure 2-3 PP67C/D Punch/Interface Cable Interconnection

Figure 2-4 M978 Connector Module

08-0786

Figure 2-5 M979 Connector Module

2.2 POWER CONNECTIONS

The PA63 and PA68F Controls draw all electrical power from the cabinet in which they are mounted. Power for

the PA63 is supplied by the H721 Power Supply and the 798 or 798A Power Supply. Power wiring is shown in

PA63—0-l6. Power for the PA68F is supplied by the H716 and the 799 or 799A Power Supply. Power wiring is
shown in PA63-F-7.
NOTE
Do not mount power

supplies directly behind the PA63.

Power supplies mounted in this location may interfere with
the cables connected to the PA63 and cause damage.

The reader and punch receive all required dc power from the controls. The punch also has an integral power

control that is connected to the appropriate ac source through an ac power cable; this cable is supplied with the
'

punch.
NOTE

All hardware that is equipped for 50 Hz power is identified

by the suffix A in the type number, e.g., PP67CA.

Primary ac power is routed to the power supplies through an 854 or 854B Power Control. The power controls
are connected to the appropriate ac source through an ac power cable. This cable is supplied with the control

and is hard-wired to it.

2.3

INSTALLATION VERIFICATION

When all'system components have been connected and adjusted, the installation can be verified by running the

appropriate Typeset-8 test and exerciser programs (Paragraph 6.1).

\Wu

We»

‘

\W‘/

CHAPTER 3

OPERATION AND PROGRAMMING

Typeset-8 System hardware

normally program-controlled. Each Typeset-8 System is preprogrammed

perform specific typesetting tasks for specific customers. Many systems are programmed to perform business

applications tasks also. Program instructions for the reader/ punch controls are described in Paragraph 3.1.
Readers have manual controls for selection and NTTA

operation, and punches have

manual control for

availability and tape feed. Reader/punch controls have manual controls for tape level and NTTA modes. These
controls are described in Paragraph 3.3.

3.1 PROGRAM INSTRUCTIONS

The system tape differs in each installation because format and type styles differ. For this reason, the customer’s
own

system tape must be used. Loading instructions are given in the applicable Typeset-8 System User’s Guide.

The program

instructions, their mnemonic codes, the IOT pulses generated, and their associated functions are

listed in Table 3-1.
Table 3-1

Program Instructions
Mnemonic

Instruction

Function

RSF

601 1

RRB

6012

RFC

6014

SKPNA*

631 1

Skip on punch not available.

RSC*

6312

Clear and load reader selector.

PSC*

6314

Clear and load punch selector.

PSF

6021

Skip if punch flag is a 1.

PCF

6022

Clear punch flag.

PPC

6024

Load punch buffer and punch character.

PLS

6026

Load punch buffer; clear punch flag and punch character.

Skip if reader flag is a 1.
.

Read reader buffer and clear reader flag.

Clear flag and buffer; fetch and load character.

*These instructions are not used on the PA68F.

3.2 DATA FORMATS

The paper tape processed by the Typeset-8 System is 7/8-inch wide, 6-channel or 1-inch wide, 8-channel tape.

Each

byte of data is punched into one frame that consists of up to eight data positions arranged in a line

perpendicular to the length of the tape. A hole punched in a data position represents a 1, and a 0 is represented

by the absence of a hole.
3-1

The data positions are numbered from O to 7, with O the least significant bit and 7 the most significant bit. The

feed hole,

Which is punched for every frame, is positioned between channels two and three (a channel is

composed of one data position in successive frames of tape, i.e., a row of holes and unpunched positions
extending the length of the tape). The feed hole may be in-line or advance. Figure 3-1 illustrates the tape
formats.

FEED HOLE

DATA
OF

POSITIONS
CHANNELS

DIRECTION OF
TAPE MOTION
VIEWED FROM

0.Q

TOP (PRINTED
SIDE) OF TAPE

I
I

I
I
I

0000

}TAPE "FRAME"

0O.
I

I
I
I

I
I

W
MOST
SIGNIFIGANT

LEAST
SIGNIFIGANT
BIT

BIT

. HOLE PUNCHED=I
Q UNPUNCHED POS|T|0N=O
NOTE
Frame shown is punched with ocial code 25.

A. 6-level Advance Feed

Hole

FEED HOLE
DATA

POSITIONS
OR CHANNELS

0
0

DIRECTION OF
TAPE MOTION
VIEWED FROM
TOP (PRINTED
SIDE) OF TAPE

0 .Q Q Q o . Q.
'

I
I

I
|

}TAPE "FRAME"

I
I
I
|
I

W
MOST
SIGNIFIGANT

LEAST
SIGNIFIGANT

BIT

. HOLE PUNCHED=1
O UNPUNCHED POSITION=O
NOTE:
Frame

shown

punched with octal

code

B. 8-Ievel In-Iine

105.

Feed

Hole
11—1171

Figure 3-1 Paper-Tape Formats

3-2

NOTE

For 6-channel tape, bits 06 and 07 are disabled by a switch
on the back of the PR68E.

3.3 CONTROLS AND INDICATORS

3.3.1 PR6SB High-Speed Paper-Tape Reader
The control and indicator on the PR68B Reader are shown in Figure 3-2 and described in Table 3-2.

’
‘

CONTROL

NTTA

AVAILABLE/
ERROR LAMP

swncu

Figure 3—2 PR68B Reader

Table 3-2
,

PR6SB Reader, Control and Indicator

Function

Name
Control Switch

Places the reader under program control. Paper tape must be placed in the
reader before the switch is closed. When the switch is closed, the reader is

ready for selection (on-line). When the switch is open, the reader is
out-of-tape and is not available fer selection (off-line).

NTTA Available/Error Lamp

This lamp is not connected in the PR68B. It is only used on the PR68A in

negative logic systems equipped for NTTA operation.

3-3

3.3.2 PR68D High-Speed Paper-Tape Reader

The control and indicator on

the PR68D Reader are shown in Figure 3-3 and described in Table 3-3.

NTTA/READER

SPRING ARM

SELECT SWITCH

CONTROL KNOB

NTTA AVAILABLE/ ERROR
LAMP (NOT USED ON PRGBDA)

Figure 3-3 PR68D/DA Reader

Table 3-3

PR68D Reader, Control and Indicator

Function

Name

Places the reader under program control. Paper tape must be placed in the

NTTA Reader Select Switch

reader before the switch is

pressed. Switch returns to normal position

when released.

Available/Error Lamp
-

Indicates the status of the reader. When the light is off, the reader is
selected. When the light is on, the reader is deselected. Light goes on and
reader deselects when the end of the take is read. If the NTTA Reader
Select Switch is pressed when there is no tape in the reader, the lamp goes
off and then lights when the reader is polled by the program.

3.3.3 PR68DA High-Speed Paper-Tape Reader

The control and indicator on the PR68DA Reader are shown

in Figure 3-3 and described in Table3-4.

Table 3—4
PR68DA. Reader, Control and Indicator

Name

Function

Places the reader under program control. When the switch is depressed to

Reader Select Switch

the left, the reader is selected (on-line). When the switch is depressed to
the right, the reader is deselected (off-line). To restart the reader after it
has been

deselected, by pressing the switch to the right, the typesetting

program must be restarted.

This lamp is not connected in the PR68DA. Refer to Table 3-3.

NTTA Available/ Error Lamp

3.3.4 PA63 Multiple Reader/Punch Control and Interface Unit
There are two manual controls on the PA63 Reader/Punch Control, located below the top cover on the left-hand
side of the unit. The indicators

the PA63

are

shown in

Figure 3-4. The indicators and the controls are

described in Table 3-5.

Figure 3-4 PA63 Multiple Reader/Punch Control

Table 3-5

PA63 Reader/Punch Control, Controls and Indicators

Name

6/8 LEVEL SWITCH

Function

Places the control in the 6- or 8-level tape reading mode. This switch must
be set to the position that corresponds to setting of the tape level slide on
the reader and the level of the tape being read.

PUNCH DATA BUFFER

Displays the contents of the punch buffer register. Corresponding lamp is
dimly lit when a bit is set.

PUNCH SELECT

Displays the octal number of the last punch selected.

NO TAPE (punch)

Lights when currently selected punch is out-Of-tape, i.e., tape supply is
below the setting of the tape low switch on the punch.

PA (punch active)

Displays the state of the punch control. Lamp is lit when the punch is
active (on) and off when the punch is done (off).

PD (punch done)

Displays the state of the punch control. Lamp is lit when the punch is
done (off) and off when the punch is active (on).

1 SEC

Displays l-second speed delay. Lamp is lit until delay times out, and
punch is up to speed and off when the punch starts perforating tape.

5 SEC

Displays 5-second delay. Lamp is lit until punch motor starts and off
when the punch starts to run.

READER DATA BUFFER

Displays the contents of the reader buffer register. Corresponding lamp is
lit when a bit is set.

READER SELECT

Displays the octal number of the last reader selected.

NO TAPE (reader)

Lights when there is no tape in the reader or it is stopped. Lamp is dimly
lit when it is running with the tape in it.

RUN

Displays the state of the reader control. Lamp is off when the reader is
not running and lit when the reader is running.

A/B

Display the state of the A and B flip-flops in the reader control.
Corresponding lamp is lit when the reader is not running and dims when
the reader is running.

INTER

Displays the state of the interrupt bit. Lamp is lit during an interrupt
request.

SKIP

Displays the state of the skip bit. Lamp is lit during a skip.

NTTA ON/OFF

Places the control in the NTTA mode. This switch must be set to ON

during normal operation. It may be set to OFF when running the TSCE
program, making maintenance checks, or using PR68DA Readers.

M: Y S tata 9 LD / O mGom.S d 9 3 p InB d 9 I...”l Du d 3 .d nmU:

The controls on the PP67C/D Punch are shown in Figure 3-5 and described in Table 3-6.

3.3.». .

3. .u

ON/OFF

SWITCH

smmm.38HO

Figure 3-5 PP67C/ D Punch Controls

Table 3-6

PP67C/D Punch, Controls

\W,

Function

Name

Control Switch

AVAILABLE

control. An adjustable microswitch

Places the

punch

located

the side of the punch monitors the level of the tape supply.

under program

The microswitch is operated by an arm that rests on the tape spool. When

spool is reduced to a predetermined diameter (determined by the
setting of the microswitch), the switch closes, sending a PUNCH NOT

the

AVAILABLE to the PA63 or the PA68F.

Simulates

STOP WHEN DONE

“low

tape” condition. Punch can be removed from service

before the tape supply gets too low to

cOmplete another take, without

interrupting the current take.
Places the punch under manual control. Motor runs but a PUNCH NOT

CONTINUOUS

signal is sent to the PA63
programmed selection of the punch.

AVAILABLE

the

PA68F, preventing

punch motor off by disabling the-motor control circuit. A
PUNCH NOT AVAILABLE signal is sent to the PA63,
preventing
programmed selection of the punch.

Turns the

OFF

NOTE
The ON/OFF switch on the side of the punch can be used to
turn

the

punch

motor

and off

Customers should be advised not to

during maintenance.
use

this switch while

replacing tape because a take could be routed to the punch
and lost if the control switch is left in the AVAILABLE

position While the tape is being replaced.

3-8

In: 4444444

/““\

CHAPTER4
THEORY OF OPERATION

This section contains detailed information on the theory of operation of the positive logic hardware used in the

Typeset-8 Systems. The information presented in this section is directed toward DEC-trained maintenance
personnel and is intended to ensure a complete understanding of all operating characteristics of the system. It
also permits on-site maintenance of typesetting systems by maintenance personnel, who~are qualified to service
the processors, but have not been

formally trained in the operation, theory, and maintenance of Typeset—8
'

Systems.
The

engineering drawings in Volume II of" this manual represent the latest revisions available at the time of

printing. However, Typeset-8 Systems are continually being changed and upgraded to satisfy specific customer
requirements. Therefore, these drawings and the detailed, theory description contained in this manual should be
'

used

only as a guide to understanding system operation. For troubleshooting and repairing a specific system-

installation, use the on-site engineering drawings, and call Maynard often.
4.1 PA63 MULTIPLE READER/PUNCH CONTROL AND INTERFACE UNIT

The PA63 Multiple Reader/Punch Control and Interface Unit

is a controller and interface for the positive logic

processors in the PDP-8 series. Up to 16 readers and punches can be interfaced to the unit. One reader and one

punch can be selected at a time.
The reader control turns the stepping motor in the selected reader on and off as directed by the processor and
the program. It also buffers the data after directing the selected reader to fetch a character.

The punch control turns the ac motor in the selected punch on and off and energizes the punch solenoids as
directed by the processor and the program. It also buffers the data after it is transferred from the processor.
The logic and circuit

diagrams for the PA63 are listed in the Master Drawing List:
'

Drawing No.

Title

A-ML—PA63-0

l6-Channel Reader/ Punch Multiplexer

The PA63 is hOused in a standard H925 module drawer that has 36 H803 mounting blocks. The module drawer
is mounted

punches

are

using chassis tracks. The PA63 contains 52 integrated circuit modules when two readers and two
connected.

Additional M060

Solenoid Drivers are added as required when more "readers are
'
'

connected to the system.

4—1'

4.1.1 Power Up

An INITIALIZE pulse is generated in the processor when the power is turned on and also when the START key

(CLEAR/CONT) is pressed. In the reader control, this pulse clears:
reader selection register flip—flops (RSBO, RSBI, RSB2 and RSB4) (PA63~0-04)

RUN- flip-flbp (PA63-0-09)

FLAG

flip-flop

In the punch control, this pulse clears:
a.

punch selection register flip-flops (PSBO, PSB l PSB2 and PSB4) (PA63-0—03)

PUNCH ACTIVE flip-flop (PA63-0—08)

FLAG flip-flop

4.1.2 IOT Decoder for Reader Control,

The reader control uses the I/O instructions listed in Table 3-1. Device coding is done in the M111, M113, and
M119 modules (PA63-0—07). Device code 31 (BMB 03—08) is gated with IOP 2 H to produce IOT 6312. Device

code 01 (BMB 03—08) is gated with IOP 1 H, IOP 2 H, and IOP 4 H to produce IOT 601 1, IOT 6012, and IOT

6014. These pulses initiate the specified functions in the reader control.

The sequence of instructions that follows selects reader 0, fetches one character from the paper tape, and
transfers it to the processor.
'

0200/6312

Rsc

6014

RFC
RSF

601 1
‘

5202

JMP.—'l

6012

RRB

The following descriptions are based on this program; the timing sequence is shown in Figure 4-1.

4.1.3 Reader Selection

Reader selection is controlled by the reader selection register flip-flops in M216 (RSBO, RSB 1, RSB2 and RSB4),
which are set according to the current contents of the AC. IOT 6312 H clocks the reader selection code (BAC 08

(1) H

—

decoded

BAC 1 1 ( l) H) from the AC into the flip-flops (PA63-0-04). The outputs of RSB 1, RSB2, and RSB4 are

by two M161 binary-to-decimal decoders, one for each group of eight readervselection signals (SEL

RDR 00 H

—

SEL RDR 07 H and SEL RDR 08 H

—-

SEL RDR 15 H). The output of RSBO selects the

appropriate decoder.

Gating the decoded SEL RDR XX H with the outputs of the A and B flip-flops in M113/MO60 (PA63-0-05)
produces the drive pulses to run the stepping motor of the selected reader. However, input data is not transferred
from the photoamplifiers in the selected reader unless a SEL RDR XX H signal is applied to the reader matrix in
M141

(PA63-0-10), signifying that the reader is on-line and ready for selection. A SEL RDR XX H signal is

generated by a reader when the NTTA/ Reader Select switch is depressed.

.I/Wx

6012
6312
6014
.
6011 s
Illllllllllllll

/—
.

l|||l|||||l||ll|l
“111111111111111

111111111111111

IOTS

SKP 6011

6312
6014
6011 s
,

6312
6014~

6012

60113

lllllll'llllllllllll'llll

'111111'11IIIIIIIIIIIIIII

.......

\SKP 6011
1
A

RDR STROBE

———

FLIP—FLOP

—————

‘

NOTEI

Timing diagram

is not drawn to scale.
08-0783

Figure 41 Tape Reader Timing Sequence for PA63

/~\

Moreover, the SEL RDR XX H signal from the selected reader is also gated with the O. T. XX H signal from the
feed hole amplifier. The resultant OUT OF TAPE L is applied to the NO TAPE flip-flop, ensuring that the reader
will not be read unless it is on—line and has tape in it (Paragraph 4.4.3).

During reader selection IOT 6312 L triggers a 4 ms delay in M302 (PA63-0-09), disables clock M401 which
prevents the clock from switching the A and B flip—flops while changing readers. After the delay times out the
clock starts running.

4.1.4

Tape Reading

Gating IOP 4H with device code 01 [BMB 03 (0)

BMB 07 (O) and BMB 08 (1)] in M103 (PA63-0-O9) produces

IOT 6014 L. This pulse:

clears the FLAG flip-flop;

clears the reader buffer register flip-flops (RBOO to RBO7);

sets the RUN flip-flop;

sets the NO TAPE flip-flop.

The read

cycle is controlled by the RUN flip-flop. Initially, the RUN (1) L output holds the A flip—flop set,

preventing the output of Clock M401 from switChing the A and B flip-flops until IOT 6014 L arrives. The A

flip-flop holds the B flip-flop set.

‘./«\

4-3

After the RUN flip-flop is set, the switching sequence is:

A
STATIC

DYNAMIC

B
A

Four pulses are generated during each cycle. Switching the A flip-flop to a 0 produces the first pulse to the gates

and drivers in

M113/M060. This pulse moves the frame in the tape over the photocells- in the read head.

Switching the B flip-flop to a 0 produces the second pulse.
Gating this pulse IB 1(0) H] with RUN (1) H in M115 produces a RDR STROBE pulse. READER STROBE H
clocks the input data from data selection matrix M141 into the reader buffer register flip-flops, loading the
buffer while the holes are still over the photocells. A high data input (no hole) sets the corresponding flip-flop.

Thus, the current character is fetched from the tape and loaded into the buffer.
Switching the A flip-flop to a 1 again produces the third pulse to the gates and drivers in M1 l3/M060. Switching
the B flip-flop to a 1

produces the fourth pulse, B (0) L. This pulse disqualifies the gate in M115 that produces

RDR STROBE. The resulting positive transition (NRDR~ STROBE L) clears the RUN flip-flop because the data

input is grounded and the direct clear input is connected to +3 Vdc. The RUN (l) L output holds the A flip-flop
'

‘

set.

RUN (0) H attempts to set the FLAG

flip—flop. As the feed hole in the tape passes over the photocell, the

resulting positive transition (~OUT OF TAPE L) clears the NO TAPE flip-flop, allowing RUN (0) H to set the

flag. When the reader runs out of tape, the positive transition does not occur and the NO TAPE flip-flop remains
set because the data

input is grounded and the direct clear input is connected to +3 Vdc. Consequently, the

FLAG flip-flop can only be set when there is tape in the reader and the reader is on-line.

This condition is tested by the 601 l instruction. During the read cycle, the processor generates a series of IOP l
H pulses. Gating these pulses with device code 01 in M103 produces lOT 6011 L pulses. These pulses are in turn

gated with FLAG (1) L in M624 to produce a SKIP BUS L pulse if the flag is set. The IOT 6011 L pulse that
causes

the SKIP BUS L pulse may occur coincident with the setting of the FLAG flip-flop or it may occur after

the FLAG
.

flip-flop is set. When the SKIP BUS L pulse occurs, the processor skips the 5202 instruction and

executes the 6012 instruction.

FLAG (l) L also

produces an unconditional interrupt request (INT RQST BUS L). This signal may be used

instead of the 601 l instruction to initiate the transfer of data from the buffer to the processor.

Gating IOP 2 H with device code 01 produces an IOT 6012 L pulse. This pulse:
1.

clears the FLAG flip-flop, and

gates the contents of the reader buffer to the processor.

Thus, the current character is transferred from the buffer to the processor. A low input from-a cleared flip-flop
causes

the corresponding gate to produce a low output. As a result, the holes in the input tape are translated to

ls.

4-4

I'I

4.1.5 IOT Decoder for Punch Control

The punch control uses the I/O instructions listed in Table 3—1. Device decoding takes place in the M111, M113,

M119, and M710 modules. Device code 31 (BMB 03—08) is gated with IOP l H and IOP 4 H to produce IOT
6311 and IOT 6314 (PA63-0—07). Device code 02 (BMB 03—08) is gated with BIOP 1 H, BIOP 2 H, and BIOP 4
H (PA63-0—08) to produce IOT 6021, IOT 6022, and IOT 6024. These pulses initiate the specified functions in
'

the punch control.

The sequence of instructions that follows selects punch 0, checks that the. punch is available, transfers one byte
of data from the processor, and punches it in the paper tape. If the punch is not available a halt occurs.

PSC

0200/6314
6314

SKPNA

7410

'SKP

7402

HLT

6022

PCF

6024

PPC

6021

PSF

5202

J MP.-1

The following logic descriptions are based on this program. The timing sequence is shown in Figure 4-2.

‘

SYNC

PUNCH

Ems |>9ms

9ms

I
I

6021‘s
-—

SKP

III

IOT s

111

6314

""""""'éozé"éoz4

PUNCH ACTIVE

—-p——-——_
-_—-

MOTOR START

—

DL PUNCH DONE

4.5msec
L
‘

‘

.
,

M302

M710

NOTEI

Timing diagram

is not drawn to scale.
08-0785

Figure 4-2 Tape Punch Timing Sequence for PA63

4.1.6 Punch Selection
Punch selection is controlled by the punch selection buffer register flip-flopsl(PSBO— PSB4) in M216, which are

set according to the current contents of the AC. IOT 6314 H clocks

BAC 1 1 (1) H) from the AC into the flip-flops (PA63- 0-03).

The

the punch selection code (BAC 08 (1) H

—-

PSB4 are decoded by two M161 binary—to—decimal decoders, one for each
outputs" of flip-flops PSBl
SEL 07H and SEL 08 H
SEL 15 H). The output of
group of eight punch selection signals (SEL 00 H
——

——

-——.—

flip-flop PSBO selects the appropriate decoder.
Gating the decoded SEL XX L with MOTOR START L in M623/624 produces MOTOR START XX L for the
selected punch. MOTOR START XX L turns on the punch motor and the SCR that supplies +30 Vdc for the
‘

solenoids of the selected punch by grounding the motor control circuit punch control G915 (Paragraph 4.1.7).

However, MOTOR START L is not produced until the 6024 instruction is executed.
IOT 6314 L triggers a l-second delay in M302 (PA63-0-08) that interrupts the INHIBIT L input to the SYNC

flip-flop. Thus, SYNC PUNCH pulses from the selected punch cannot trigger the 4.5 ms pulse shaper while
switching between punches to allow the selected punch to get up to speed.
The availability of the selected punch is checked by gating SEL XX H with NOT AVAIL XX H in M141. If the

control switch on the punch is not in the AVAILABLE position or the tape supply is low (below the setting of
the low tape limit switch), NOT AVAIL XX H and SEL XX H produce a low input to M623. This condition is

tested by the 6311 instruction. Gating IOP 1 with device code 31 in M113/M111 produces IOT 6311 L. Gating
this IOT in M623 with the low input
the next instruction and halt.

from M141 produces SKIP BUS L. This pulse causes the processor to skip

When the control switch on the selected punch is in the AVAILABLE position and the punch has sufficient tape,
the SKIP BUS L pulse is not produced and the processor executes

the 6022 instruction.

4.1.7 ‘Tape Punching
'

Gating BIOP 2 with device code 02 [BMB 03 (0)
'

—,~

BMB, 06 (0), BMB 07 (l) and BMB 08 (0)] in M710

(PA63-0-08) produces an IOT 6022 L pulse. This pulse clears:

the PUNCH ACTIVE flip—flop;

the PUNCH FLAG flip-flop-

The next instruction (6024) starts the punching cycle. The device code from M119 produces an AC STROBE H

‘

pulse, which gates the data [BAC 4 (1)

——

BAC

ll (1)] from the processor through M101/Ml 11 to the punch

buffer.

Gating device code 02 'with BIOP 4 in M710 produces an IOT 6024 pulse. IOT 6024 (A) H clocks data into

punch buffer register flip-flops PB-O through PB-3. IOT 6024 (B) H clocks data into punch buffer register
flip-flops PB-4 through PB—7. A high data input sets the corresponding flip-flop. IOT 6024 L sets the PUNCH
'

ACTIVE flip-flop.

\_\’yl

PUNCH ACTIVE (1) L triggers a 5-second delay in M710 that produces MOTOR START L. A simplified logic

diagram of the M710 punch control is shown in Figure 4-3.

produced when the 5-second delay is triggered. This transition triggers a l-second

A positive-going transition is

delay in M710 that prevents punching until the motor in the selected punch reaches full speed. After the time
elapses, PUNCH ACTIVE (l) L is gated with UP TO SPEED H in M710 to produce INHIBIT L. Gating the
decoded SEL XX L with the SYNC PUNCH XX H pulses (PA63-0—02) returning from the pick-up coil in the
selected punch

produces SYNC PUNCH L. When SYNC PUNCH XX H goes low, SYNC PUNCH L goes high

gating INHIBIT L into the PUNCH DONE flip-flop. This triggers a 4.5 ms pulse shaper that produces DL PUNCH
DONE L. The 4.5

DL PUNCH DONE H pulse gates the contents of the punch buffer to the M060 Punch

Solenoid Drivers. A low output from

grounds the corresponding solenoid in the selected punch,

driver

energizing the solenoid and punching a hole in the

paper tape.

The ~DL PUNCH DONE L pulse:
a.

clears the PUNCH ACTIVE flip—flop;

sets the PUNCH FLAG flip-flop.

This condition is tested by the 6021 instruction. During the punching cycle, the processor generates a series of

toproduce IOT 6021 H pulses, which are

BIOP 1 H pulses. These pulsesare gated with device code 02 in M710

in turn gated in M710 with the FLAG ( 1) H output to produce a SKIP BUS L pulse if the flag is set. The specific

IOT 6021 H

flip-flop,

pulse that causes the SKIP BUS L pulse may occur coincident with the setting of the FLAG

or it may occur after the FLAG

flip-flop is set.
‘

021 H
SKIP BUS L
1

D
024 L

PUNCch

DONE L
D

FLAG

INT RQST BUS L
+3v

VINITIALIZE (0)

wag:
c
PUNCH
DONE L

—

PUN ACTIVE (0) L

5'SEC

5"SEC

MOTOR

‘

DELAY

START

INITIALIZE L

1-sec

up T0
SPEED

‘

1-sec
DELAY

’

UP T0
6314 L

1-sec
DE L A Y
.

SYNC
PUNCH L

/SPEED

t! )

INHIBIT o

PUNCH
DONE
O

C
'

4.51/15
‘

4.5MS
DELAY

I I

PUNCH
DONE L

DL PUNCH
DONE H

+3V

08-0784.

Figure 4—3 M710 Punch Control for PA63, Simplified Logic Diagram
4-7

When the SKIP BUS L pulse occurs, the processor skips the 5202 instruction.»FLAG (1) H also produces an

unconditional interrupt request (INT RQST BUS L). This signal may be used instead of the 6011 instruction to
terminate the punching cycle. If another IOT 6024 L pulse15 not generated within 5 seconds, the delayin M710
times out, turning the punch motor

off and clearing

the 1—second flip-flop.

4.2 PA68F SINGLE READER/PUNCH CONTROL AND INTERFACE UNIT

The PA68F is a controller'- and interface for the positive logic-processors in the PDP-8 series. The reader control
turns the stepping motor in the selected reader on and off as directed by the processor and the

buffers the data after directing the selected reader to fetch a character

The punch control turns the

program

It also

motor in the selected punch on and off and energizes the punch solenoids as

directed by the processor and the program. It also buffers the data after it is transferred from the processor.
The logic and circuit diagrams for the PA68F. are listed in the Master Drawing List:

Drawing No.

Title

A-ML-PA63-0

Reader and Punch Control

The PA68F is housed in a modified H911 Mounting Panel. that has six H803 Mounting blocks instead of eight.
.

An H716 Power Supply is mounted on the H911 in the slot where the two mounting blocks were removed. The
V
I

PA68F contains 17 integrated circuit modules.

4.2.1 Power Up
An INITIALIZE

pulse is generated in the processor when power is turned on and also when the START

(CLEAR/CONT) key is pressed. In the reader control, this pulse:
a.

disables clock M401, preventing a tape feed cycle if the RUN flip-flop is set;

clears the RUN flip-flop;

clears the FLAG flip-flop.

In the punch control, this pulse clears:
a.

the PUNCH ACTIVE flip-flop;

the PUNCH FLAG flip-flop.

4.2.2 IOT Decoder for

Reader Control

The reader control (PA68F-1) uses the I/O instructions listed in Table 3-1. Device decoding takes place in the
M103 module. Device code 01 (BMB 03—08) is gated with IOP 1, IOP 2 and IOP 3 to produce IOT 6011, IOT

6012 and IOT 6014. These pulses initiate the specified functions in the reader control.
The sequence of instructions that follows

fetches one character from the paper tape and transfers it to the

processor.

0200/ 60 1 4

RFC

601 1

RSF

5202

J M]P.-1

6012

RRB

We:

The following logic descriptions are based on this program. The timing

RDR STROBE
_

sequence is shown in Figure 44.

NOTEI

Timing diagram is not drawn to scale.
08'0782

Figure 4-4 Tape Reader Timing Sequence for PA6‘8F

4.2.3 Tape Reading

Gating IOP 4H with device code 01 [BMB 03 (0)

~—~

BMB 07 (O) and BMB O8 (1)] in M103

This pulse:
a.

clears the FLAG flip-flop;

clears the reader buffer register

sets the RUN flip-flop;

(1.

sets the NO TAPE flip-flop,

produces IOT 6014 L.

flip-flops (RBOO to RBO7);

cycle is controlled by the RUN flip~flop. Initially, the RUN (1) H output holds the A flip-flop set,
preventing the output of Clock M401 from switching the A and B flip-flops until IOT 60.14 L arrives. A

The read

holds the B flip-flop set.

,flw‘..\

/
\\

\‘

flip-flop

After the RUN flip-flop is set, the switching sequence is:

STATIC

‘

DYNAMIC

r—At—do

o—rOt—t

Four pulses are generated during each cycle. Switching the A‘ flip-flop to a 0 produces the first pulse to the gate

and driver in M113/M060. This pulse moves the frame in the tape over the photocells in the read head.

Switching the B flip-flop to a 0 produces the second pulse. Gating this pulse [B.(0) H] with RUN (l) H in M1 15

produces aRDR STROBE pulse. READER STROBE H clocks the input data from the photoamplifiers in the
reader into the buffer register flip-flops, loading the buffer while the holes are still over the photocells. A high

data

input (hole) sets the corresponding flip-flop. Thus, the current character is fetched from the tape and
'

’

loaded into the buffer.

Switching the A flip-flop to a 1 produces the third pulse to the gate and driver in M1 13/M060. Switching the B

flip-flop to a 1 produces the fourth pulse, B (0) L. This pulse disqualifies the gate in M115 that produces RDR
STROBE. The resulting positive transition (~RDR STROBE L) clears the RUN flip-flop because the data input

is; grounded. RUN (l) H holds the A flip-flop set. The four pulses generated by the AB flip-flops are inhibited
.by ~SEL RDR H when the reader is deselected. This keeps the motor in the reader turned off when it is
deselected so that it does not overheat.

RUN (0) H attempts to set the FLAG flipéflop. As the feed hole in the tape passes over the photocell, the

resulting positive transition (~OUT OF TAPE L) clears the NO TAPE flip-flop, allowing RUN (0) H to set the

flag. When the reader runs out of tape or is deselected, the positive transition does not occur and the NO TAPE

flip-flop remains set. Consequently, the FLAG flip-flop can only be set when there is tape in the reader and the
reader is on-line.

This condition is tested by the 6011 instruction. During the read cycle, the processor generates a series of IOP 1

H pulses. Gating these pulses with device code 01 in M103 produces IOT 6011 L pulses. These pulses are gated
with FLAG (0) H in M623 to produce a SKIP BUS L pulse if the flag is set. The IOT 6011 L pulse that causes
the SKIP BUS L pulse may occur coincident with the setting of the FLAG flip-flop or it may occur after the
.

FLAG flip-flop is set. When the SKIP BUS L pulse occurs, the processor skips the 5202 instruction and executes
’

’

the 6012 instruction.

FLAG (0) H also iproduCes an'unconditional interrupt request (INT RQST BUS L). This signal may be used
instead‘of the 601 l instruCtion to initiate thetransfer of data: from the buffer to the processor.

Gating IOP 2 H with device code 01 produces an IOT 6012 L pulse. This pulse:
1.

clears the FLAG flip-flop,

gates the contents of the reader buffer to the processor.

4-10

Thus, the current character is transferred from the buffer to processor. A low input from a set flip-flop causes
the corresponding gate to

produce a low output. As a reSult, the holes in the input tape are translated to Is.

4.2.4 IOT Decoder for Punch Contr01
The

punch control ‘(PA68F-2.) uses the I/O instructions listed in Table 3-1. Device decoding takes place in the

M1 13, M1 19, and M710 modules. Device code 02 (BMB 03—408) is gated with IOP 11H, IOP 2 H and IOP 4 H to

produce IOT 6021, IOT 6022, and IOT 6024. These» pulses initiate the specified functions in the punch control.
The sequence of instructions that follows transfers one byte of data from the processor and punches it in the
‘

paper tape.
I

0200/6022
6024

PFC

PPC

‘

_,
,

6021

PSF‘

5202

JMP.«.1
’

The following logic

desCriptions are based on thisprogram.The timing is shown in Figure 4—5.

'
‘

SYNC PUNCH
_

kSms

>9rns

‘III'IIIIHIu
,IIIIHIIHI

IOTS
m ———————————

“--

‘_

ypq-o_
‘

6022

6024

602

‘

.‘

H
annual—-

SKP

6021
H
i

PUNCH ACTIVE

‘

——————

Iq- ————————

FLAG

l
'

:
l

Il-

MOTOR START

ssecs
,

;

——————

PUNCH DONE

ENABLE
PUNCH DONE

I-o-p—I-p—II-

4.5msec

-~—~
H

M710
NOTE:

Timing diagram is not drawn to scale;
08-078 I

Figure 4—5 Tape Punch Timing. Sequence for PA68F
,

4.11

4.2.5

Tape Punching

Gating IOP 2 with device COde 02 [BMB 03 (0)
an IOT

BMB 06 (0), BMB 07 (1) and BMB O8 (0)] in

~—

M710 produces

6022 L pulse. This pulse clears:

the PUNCH ACTIVE flip-flop;

the PUNCH FLAG flip-flop.'

The next instruction (6024) starts the punching cycle. The device code from M119 produces an AC STROBE H

pulse. This pulse gates the data [BAC 4 (1)

—-

BAC 11 (1)] from the processor through M101 /M1 13 to the

punch buffer.

Gating device code 02 with IOP 4 in M710 produces an IOT 6024 pulse. IOT 6024 H clocks the data into the
‘

punch buffer register flip-flops. A high data input sets the corresponding flip-flop, loading the associated buffer.
IOT 6024 L sets the PUNCH ACTIVE flip-flop. PUNCH ACTIVE (0) H triggers a 5-second delay in M710 that

produces MOTOR START L. MOTOR START L turns on the punch motor by grounding the motor control
circuit in the G915 Punch Control. A simplified logic diagram is shown in Figure 4-6.

IOT 6024 L

1
FUN

AcnvE o L

PUNCH
ACTIVE

PUN ACTIVE 01.

5-SEC
-J___——_L‘

5 SEC
DELAY
_

o
.

MOTOR START L

+3v

INITIALIZE L

~ENB
PUNCH

DONE L

“SEC

UP TO
SPEED

”‘1

f“

1-sec

’

DELAY

glamcEH

4.5MS

SYNC PUNCH

4.5MS

I I

PUNCH
DONE L

DELAY

PUNCH
DONE H

3v
08—0780

Figure 4-6 M710 Punch Control for PA68F, Simplified Logic Diagram

4-12

rat.

A positive-going transition is produced when the 5-second delay is triggered. This transition triggers a l-second

delay in M710 that prevents punching until the motor reaches full speed. After the time elapses, ~ENB PUNCH
DONE L allows the incoming SYNC PUNCH H pulses returning from the punch pick-up coil to be gated with
PUNCH ACTIVE (0) H in M710, triggering a 4.5 ms pulse shaper that produces PUNCH DONE H. The 4.5 ms
PUNCH DONE H

pulse gates the contents of the punch buffer to the M060 Punch Solenoid Drivers; a low

output from a driver grounds the corresponding solenoid, energizing it, and punching a hole in the paper tape.
When the 4.5 ms delay times out:

cleared;

the PUNCH ACTIVE flip-flop is

the PUNCH FLAG flip-flop is set.

This condition is tested by the 6021 instruction. During the punching cycle, the processor generates a series of
IOP 1
are

pulses. These pulses are gated with device code 02 in M710 to produce IOT 6021 H pulses. These pulses

gated with the FLAG (1) H to produce a BUS SKIP L pulse if the flag is set. The IOT 6021 H pulse that

causes

the BUS SKIP L pulse may occur coincident with the setting of the PUNCH FLAG flip-flop or it may

occur after the PUNCH FLAG

flip-flop is set.
A

When the BUS SKIP L

pulse occurs, the‘processor skips the 5202 instructiOn. FLAG (1) H also produces an

unconditional interrupt request (INTER BUS L). This

signal may be used instead of the 6011 instruction to

terminate the punching cycle. If another IOT 6024 L pulse is not generated within 5 seconds, the delay in M710
times out, turning the punch motor off and clearing the 1-second flip-flop.

4.3 PR68B HIGH-SPEED PAPER—TAPEREADER

The PR68B is a positive logic version of the PR68A. It can be set up to read either 6-level advance feed hole or

8-1eve1 in—line feed hole tape. Reading rate is 110 cps. Operating voltages and signals are compatible with both

the PR68F Single Reader/Punch Control and Interface Unit and the PA63 Multiple Reader/Punch Control Unit.

The circuit diagrams for the PR68B are listed in the Master Drawing List:

With the

Drawing No.

Title

A—ML-PR68-B

Reader (Typesetting System)

exception of the voltages and signal polarities (shown on the block wiring diagram), the PR68B is

identical to the PR68A. A single G908 Photoamplifier Module is used to monitor the outputs of the photodiodes
and produce +3.6 Vdc when a hole is sensed and 0 Vdc when no hole is sensed.

The bias level of all nine photoamplifiers is determined by the setting of the threshold

sensitivity potentiometer,

R52. Drawing C-CS-G908-0—l shows the circuit configuration of the amplifiers.

4.4 PR68D HIGH-SPEED PAPER-TAPE READER

The PR68D is a redesigned and improved reader equipped with a nontorn tape (NTTA) processing feature. This
feature is

implemented by adding a G930 module to the PR68DA and making some minor modifications.

Operating voltages and signals are compatible with the PA63 Multiple Reader/Punch Control and Interface Unit.

4-13

The PR68D Reader can be set up to read either 6- or 8-level in—line and advancedfeed hole tape. Reading rate is
110 cps. The PR68D Reader is a separate unit that can be installed at a remote location. It contains one discrete

component module and one integrated circuit module.
The reader also contains: a) a light source, b) a set of phototransistors to translate the presence or absence of
holes in the tape to logic levels representing 13 and Os, and c) a tape transport mechanism to move and position
the paper tape between the

light source and the read head. The discrete component module, G918, is a

nine-channel transistor amplifier that matches the impedance of the phototransistors to that of the buffer in the
‘

PA63 and raises the output of the phototransistors to the correct logic level. The integrated circuit module,

G930, is an NTTA control that “remembers” the status of the reader and transmits this information to the
control (Figure 4-7).

The circuit diagrams for the PR68D are listed in the Master Drawing List:
‘

Title

Drawing No.

Paper Tape Reader (PR-68D)

A-ML-PR68-D

Functionally, there are three circuits:

tape transport mechanism, photoelectric tape reader, and an NTTA

reader select control.

NTTA/READER

SELECIEWITCH l

' _l'_""—°
L

8. -15V

PRSBD

NTTA
AVAILABLE/

ERROR LAMP

.
_

‘

—15v

+5v

1yfih

|
'

E3
c

L. .. _ _. ._ J

8.?
AL.

._.J_.

PA63

M623¥ SEL

+5V

RDR XX H

i lI

L-.._._........_._.._.._._l
08-0779

Figure 4—7 G930 Nontom Tape Alloting Module, Simplified Logic Diagram

4-14

4.4.1

Tape Transport Mechanism

A tape-drive sprocket, rotated by a 4—pole, Clo-Operated synchronous motor, performs the tape-feeding function.
Pins on this wheel engage feed holes in the tape to transport the tape past the read station. High-current drive

pulses, generated by solenoid drivers in the PA63 produce the required torque in the motor.
Two switch-tail-connected

flip-flops (A and B) in the PA63 provide the pair-sequential triggering outputs that

control the solenoid drivers. Four feed cycles are required to move the tape a distance equal to one character

position. Switching the activation of the solenoid pairs at 2.3 ms intervals produces a tape-feeding rate of 1103'
cps.

4.4.2 Photoelectric Tape Reader

The tape reading function is performed by the photoelectric tape reader. This reader consists of a light source, a

photoelectric read head and associated amplifier circuits for the'photocell outputs. The amplifier circuits are in
the G918 module.

The read head, located below the tape, contains nine light sensitive semiconductors, physically arranged to sense

perforations in the eight data. tracks or channels of the tape and in the feed tape hole track. The light source is
directly above the photocells. The outputs of the photocells change between the light and no—light conditions.
Light passing through a hole in the tape activates the associated photocell.

The nine

photoamplifier circuits in the G918 module continuously monitor the outputs of the photocells for

transmission to the PA63. The bias level of all nine photoamplifiers is determined by the setting of threshold

potentiometer, R37. The amplifiers generate a +3.6 Vdc output level when a hole is sensed and a 0 Vdc level
.

when no hole is sensed. The PA63 controls the transmission of the data read from the tape and the position of

the tape, which is determined by the state of the A and B flip—flops. The feed hole amplifier output is monitored
to detect the out-of—tape condition.

4.4.3 NTTA Reader Selection

Reader selection is controlled

described in Paragraph 4.1.3. The G930 module assumes control of reader

selection when no input tape is ready for processing.

Since flip—flop E3 is cleared initially, the reader is not available for selection when the program is started.
Consequently, the output of Q1 holds SEL RDR XX H at ground as the PA63 sequentially steps through each
reader in the normal manner, searching for one that is available for selection. This output holds RDR SEL XX H
at ground because Ql in the G930 module and the corresponding M623 driver in the PA63 are both connected
to the +5 Vdc source through the same resistor. Thus, SEL RDR XX H can not go up to that level unless Q] is

timed off.

When the switch on the reader is closed, the input to El/ 2 and E2/ 2 is grounded, cutting off transistors Q1 and

Q2. Consequently, the lamp on the reader goes off because it is not grounded. More importantly, the output of
Q1 is allowed to follow SEL RDR XX H. Thus, the reader is ready for program selection, but it is not selected
because ~SEL RDR XX H from the PA63 holds the logic level at ground. The switch closure is “remembered”

by El / l and E2/1, which hold Q1 and Q2 in cut-off until flip-flop E3 changes state.

445

When the PA63

produces SEL RDR XX H for the available reader, the reader is selected and input tape

processing begins. However, this does not effect the flip-flop because the change from ~SEL RDR XX H to SEL
RDR XX H produces a negative-going pulse at the output of E1/3. After the stop code is read at the end of the

tape, the flip-flop is cleared as the PA63 deselects the reader, producing a positive-going pulse. This lights the
NTTA Available/ Error lamp, indicating that tape processing is complete.
4.5 PR68DA HIGH-SPEED PAPER-TAPE READER

The PR68DA High-Speed Paper-Tape Reader is

redesigned and improved reader that can be set up to read

either 6—1eve1 advance feed hole tape or 8-level in—line feed hole tape. Reading rate is 110 cps. Operating voltages

and signals are compatible with the PR68F Reader/Punch Control and Interface Unit. Physically, the PR68DA is
identical to the PR68B; functionally, the PR68DA is identical to the PR68B. It is more reliable and easier to
maintain than the PR68B because phototransistors are used instead of photodiodes.

The circuit diagrams for the PR68DA are listed in the Master Drawing List:

Title

Drawing No.
A-ML—PR68—DA

Paper Tape Reader (PR68—DA)

single G918 Photoamplifier Module is used to monitor the outputs of the phototransistors and to produce

+3.6 Vdc when a hole is sensed; 0 Vdc when no hole is sensed.

The bias level of all nine

photoamplifiers is determined by the setting of threshold sensitivity potentiometer,

R37. Drawing C-CS-G9 18-0-1 shows the circuit configuration of the amplifiers.

4.6

PP67C/ D HIGH-SPEED PAPER-TAPE PUNCH

The PP67C/D Punch is a modified BPRE Punch, Model 11 or Model 18. Four models are available, depending on

the number of channels required and the power available.

Voltage and Line Frequency

Type

Tape Level

PP67C

6-advanced feed hole

PP67CA

6-advanced feed hole

PP67D

8- in-line

PP67DA

8-in-1ine

115V, 60 Hz
115V, 50 Hz
115V, 60 Hz
115V, 50 Hz

Punching rate is 110 characters per second. The PP67C/D Punch is a separate unit that can be installed in a
remote location; it contains one discrete component module. The circuit diagrams for the PP67C/D are listed in

the Master Drawing List:

Drawing No.

Title

A-ML-PP67-C

Paper Tape Punch PP67-C

The punch also contains: a) a punch drive motor, b) a mechanism to advance the tape and position it under a

perforating mechanism, c) a perforating mechanism that translates logic levels representing Is and Os to the
presence or absence of holes in the tape. A roll of tape is loaded in the punch. As the tape is perforated by the
/

punch, it is collected for processing by a linecasting or a phototypesetting machine. The discrete component
module, G915, is a punch control that monitors the status of the punch and transmits this information to the
reader punch control.

4-16

km/v’

(am

The circuits for the PP67C/D Punch are shown in drawings D—CS-PP67C—l and D—CS-PP67D—l. Functionally,
there are two separate circuits, a motor control and a solenoid control that are both located on the G915 Punch

Control Module (drawing B-CS-G9 1 5-0-1).

4.6.1 Motor Control

Figure 4-8 is a simplified functional diagram of the motor control circuit. The punch motor is controlled by
MOTOR START L from the control. When the control switch on the punch is in the AVAILABLE position,

MOTOR START L grounds OS in Punch Control, G915. This, in turn, energizes relay Kl. The closed contacts of
K1 allow the 110 Vac input to trigger SCR D2 in the punch, supplying ac current to the motor.

‘2’

FILTER

‘

MOTOR

ON/OFF
SWITCH

03%

0<———.—lAVAILABLE

0},

+5V

NOT AVAIL H

4.)

.
I

E’g’fi‘H—o

o—
22

.————o

S‘l

—

CONTINUOUS

”F

MC.

'5
STOP WHEN DONE

:
:

—

——————

2m
l

L
v

R11

O (’1

I) ‘1

VUI

+30V

MTOTOR
s ART L

—

G915

Figure 4-8 Punch Motor Control, Simplified Functional Diagram

During the first half cycle of the ac input, the voltage on the control gate of D1 at the junction of R10 and R1 1
turns on the SCR. Therefore, current flows through the motor Winding, driving the motor. At the end of the first

half cycle the anode voltage is reduced to zero, hence the SCR turns off. During the second half of the cycle,

however, the voltage at the control gate turns on the SCR again.
NOTE
In

the

OFF

(approximately

condition,
100

k9)

SCR

has

both

directions

high

resistance

(anode

cathode and cathode to anode). The cathode control gate is

the equivalent of a small diode. If a low positive voltage is
applied to the gate when the anode is positive and the
cathode is negative, the resistance is greatly reduced and
current will flow through the SCR. After the SCR is
triggered, it can only be turned off by removing the anode
voltage.
4—17

CATHODE

ANODE

CONTROL GATE

r:
11—1164

Silicon Controlled Rectifier

Thus, the full wave bridge rectifier, Dl, supplies unfiltered, unregulated dc for the SCR. The thyractor, D3,

regulates the 110 Vac input. The SCR switches the 110 Vac input to the motor. The punch motor can also be
turned on by closing the ON/ OFF switch. However, this switch should only be used during maintenance because
I

it does not place the punch under program control.

While the punch has sufficient tape, ~NOT AVAIL H is applied to the reader/ punch control because the wiper
A

of SI is grounded

through the contacts of the tape low indicator arm. When the tape goes below the limit

(approximately 3/8-inch of paper left on the core), the wiper of S1 is connected to +5 Vdc through the contacts
of the tape low indicator arm, applying NOT AVAIL H to the reader/ punch control.

NOT AVAIL H is also produced when the control switch is set to STOP WHEN DONE, CONTINUOUS, or OFF.
The punch motor runs continuously when the control switch is in the CONTINUOUS position because MOTOR

START L is grounded.

4.6.2 Solenoid Control

The

punch solenoids are energized by MOTOR START L and P HOLE 00 Lthrough P HOLE 07 L from the

reader/ punch control. MOTOR START L grounds Q1 in G915. This triggers SCR Q4, which switches +30 Vdc to
the solenoids. A discrete solenoid is energized by P HOLE XX L, which grounds the corresponding solenoid.

SYNC PUNCH

pulses generated by a reluctance pickup, synchronize the solenoids with the reader/punch

control. The pickup is driven by the punch motor.

Figure 4-9 is a simplified functional diagram of the punch solenoid circuit.
CAUTION
Do not turn on power when an M710 Punch Control Module
is removed from the reader/punch control.

punch solenoid circuit could result.

Damage to the

fl\\

+3OV
R3

1:02

R2
NW

+5V

R1
MOTOR START L

Q1
'

i
_
_

’IC

HOLE1

HOLE 2

HO LE 3

HOLE 4

HOLE 5

L
savanna“:
ID

‘

Aw»

‘

’

”D11

‘

I
L

’

N09
"

’

LPUNCH

SOLENOIDS

'08
6C}

HOLE 6

L
‘

HOLE 7

HOLE 8

(flm\

8C}
.4/

H 0 LE 9

’

106

Nos
"‘

.
y

"D4
08-0790

Figure 4—9 Punch Solenoid Control, Simplified Functional Diagram

4-19

/m"\

CHAPTER 5

ADJUSTMENTS

This chapter covers the adjustment procedures for the M401 Clock Module and the M710 Punch Control Module
in the PA63 and PA68F

system, including

Controls, the PR68B, PR68D/DA Readers-and the PP67C/D Punches. A complete

processor and a Teletype,

are

required to run the programs and to make the adjustments

using these procedures. The maintenance test equipment and the diagnostic test programs listed in Paragraph 6.1
and the engineering drawings in Volume 2 of this manual are

The

procedures should be followed as closely as

also required to perform

these procedures properly.

possible in the order which they
1n

power must be turned on and Off, as necessary, throughout the adjustments.

are

presented. Processor

5.1 M401 READER CLOCK

The purpose of the reader clock adjustment is to set the period of the clock

speed (running

rate) of the reader.

An oscilloscope

required

pulsesthat determine the operating

to make this

adjustment. The adjustment

procedure is:
1.

Connect the oscilloscope to A15D2 on the PA63 or B08D2 on the PA68F.

Adjust potentiometer R8 (Figure 5-1) to obtain the waveform shown in Figure 5—2.

5.2 M710 PUNCH CONTROL

The purpose of the punch control adjustment is to Set the width of the PUNCH DONE pulse. An oscilloscope is

required to make this adjustment. The adjustment procedure is:

on an extender board.

Turn off computer power and place the M710

Load the following program into location 7000:
’

7000/

«(Wm

g
.

‘\

7040

CMA

6026

PLS

6021

PSF

5202

JMP.~1

5200

JMP.—4

Set SR to starting address (7000), depress LOAD ADD and START.

Connect the oscilloscope to AB30 BH2 on PA63 0r AB07 BH2 on PA68F and
R4 (Figure 5- 3) to obtain the waveform shown1n

5-1

Figure 5-4.

adjust potentiometer

11.1.]

95% Tm 332 Moguswmé 20525.63

SENS

m.m 2.

H 00. we
0&3qu

oSwE Wm M020 33m €802“?

Figure 5-3 M710 Punch Control Adjustment Location

4.5 ms

12.05 ms

11-1167

Figure 5-4 Punch Done Pulse Waveform

5.3 PR68B HIGH-SPEED PAPER-TAPE READER

The mechanical, electrical, electronic, and optical mechanisms of the PR68B Reader can be adjusted if they are
I

causing data errors. A multimeter and an oscilloscope are required to make the adjustments. Static adjustment of

the

mechanical, electrical, and optical mechanisms must be made before the G908 Photoamplifier can be

adjusted. The G908 adjustment can be made without an oscilloscope if necessary. Adjustable mechanisms are
I

shown in Figure 5-’*'
BRACKET
ASSEMBLY

TAPE
HOLD-' DOWN
WEIGHT

CONDENSING
LENS

TAPE
BED

BRACKET
ASSEMBLY
SET SCREWS

CONDENSING
LENS SET
SCREW

READER
HEAD

I
READER HEAD
SET SCREWS

6-LEVEL
GUIDE
SET SCREW

RIGHT FRONT

VIEW

SPROCKET
WHEEL ALLEN
SET SCREWS

6-LEVEL
GUIDE

TAPE: SPRING
ARM SET
FINGERS

READER
LAMP

SCREWS
.

SIPROCKET
WHEEL

BACK PLATE

TAPE SPRING
ARM

LEFT FRONT VIEW

Figure 5—5 PR68B Reader Adjustment Location
54

RESISTOR

CLAMP CONNECTOR

TAPE HOLD- DOWN
WEIGHT SET SCREW

‘OBLIQUE INTERIOR VIEW

6908 PHOTOAMPLIFIER MODULE

Figure 5-5 PR68B Reader Adj ustment Location (Cont)

5-5

5.3.1 Static Adjustment
1.

Measure the

voltage across the reader lamp. It should. be 10 Vac. If it is not, loosen the clamp
connector on the 7.552 resistor in the reader and move the clamp until 10 Vac is obtained (Figure 5-5).
Tighten the clamp, then recheck voltage. If cables are over 75 ft, the ~15V and ground lines must have
'

dual wires in the cable.
Release the screw holding the

6-1evel guide and if the reader is to be used for 8 level, drop the guide to

its lowest position and tighten the screw. If the reader is to be used for 6 level, move the guide up until
the guide surface is

flush} with the surface of the reader head. Tighten the screw.

Take a short piece of tape, 6

or 8 level appropriate to reader use, and place it in the reader. Adjust the

reader head withthe two. screws shown, so that the tape lies flat across the sprocket wheel and the
reader head surface (Figure 5-6). Tighten the sCrews.
Place three thicknesses of tape between the tape bed and pressure pad and tighten the screw that
connects it to the reader plate. The pad should now be secured.

TAPE HOLD-DOWN
WEN} HT

6-LEVEL GUIDE

® ®

\.....
HEAD

SPROCKET
WHEEL
08-076l

Figure 5-6 6-Level Guide and Reader Head Adjustment

Rotate the reader lamp so that the filament produces an even beam of light and casts no shadow from
the bulb’s seam, over the photocell apertures (Figure 5-7). (Note: inspect the bulb for filament sag, if

present replace the bulb.) Adjust the condensing lens so that the flat portion is parallel with the reader
head. Loosen the two set screws on the bracket assembly and move it forward or backward to make
the light beam cut across the right-hand edge of the apertures.
Take a short piece of tape with a rubout code perforated about half way along the tape and place it in
the reader. Loosen the two Allen set screws in the sprocket wheel and, while holding the tape taut
across

the cell block and

wheel, move the sprocket wheel laterally so that the holes in the tape are

centered over the photocell apertures (Figure 5-8). Be sure that the tape is not curled up against the

reader plate. Partially tighten one of the screws.

PHOTOCELL
APERTURES

TAPE

IDIRECTION

LIGHT BEAM

Figure 5—7 Reader Lamp and Condensing Lens Adjustment

'
*

//
Baffin/{fl

i,
|

WHEEL

MOVEMENT

‘

l
l
I

'
1
‘
‘

|_
I

r—er—w
0'}

PHOTOCELL APERTURES

63/
.

RUB—OUT CODE
DATA HOLES

I
o

FEED HOLES

LEEEEJ
L"_J

T}
‘

TAPE DIRECTION

08~0763

Figure 5-8 Lateral Adjustment of Sprocket Wheel

5—7

Select the required reader Via the PA63

control by loading the following program:

Nor/J

7604

LAS

6312

RSC

7402

HLT

Load ADD 0, set the reader number in SR bits 8—1 1, then press START.
screw in the sprocket wheel, and keeping the lateral position fixed, rotate the wheel
axially until the leading edge of the tape holes just touch the right-hand edge of
the light beam (Figure
5- 9). Tighten the Allen set screws in the wheel.

Release the

Put the tape spring arm down and check that the straight part of the fingers are horizontal and just

touching the wheel (Figure 5-10). Also check that the fingers are centered over the sprockets on the
the tape
wheel, sighting from the top of the reader. The adjustment can be made by carefully
spring arm and the fingers, using a pair of long nose pliers

bending

PHOTOCELL
APERTURES

TAPE
DIRECTION

\W/
08-0764

Figure 5-9 Axial Adjustment of Sprocket Wheel

scufgvj'\
spams
ARM

FINGERS——

WHEELX

SPROCKETS

313%”

08-0765

Figure 5-10 Spring Arm Adjustment for PR68B
5—8

5.3.2

Dynamic Adjustment

After all preliminary static adjustments have been made, the reader should‘be margined. There are two methods
of doing this, depending on the available test equipment.

Method 1
1.

Using a short program or Typesetting Configuration Test Program 10, read a ls and Os test tape loop.
Observe the AC for data and adjust the potentiometer on the G908 through its entire range from the
point where bits are picked up to the’point where bits are dropped, counting the number of full turns;
'

required.
2.

Set the

potentiometer back 40% from the point where bits are picked up; e.g., if ten turns are

counted, set the potentiometer back four turns from the pickup point. Ordinarily the feed hole will be
picked up first when checking bits 1, 2, 3, and 4, causing the program to hang up on the flag. This is
the end of the range in that direction.

NOTE

The minimum range that should be

potentiometer18 six turns.

from the

obtained

Method 2
1.

Using an oscilloscope, read a ls and Os test tape loop at full speed and monitor B27E2 on the PA63
data hole; or B11E2 on the PA68F and C8Ul on the PA63; or Bl3Ul on the
PA68F. Observe the
of the B flipbetween the data and the‘ ‘strobe”
relationship

flop.

output

Adjust potentiometer R1 and, if necessary, the
5-11.

sprocket

wheel to

obtain the timing shown in Figure

Repeat steps 1 and 2, monitoring B28P1 on, the PA63 (data hole 3)‘or Bl'OPl on the PA68F. To check
for skew, compare data hole 0 and data hole 5 (B2811 on the PA63 or 310.1 1 on the PA68F).

After the margins have been set up correctly, read a short piece of tape to ensure that the PA63 or the

PA68F recognizes-the “out-of-tape” condition as'the tape runs out. A slight readjustment of the G908
may be necessary, but the change should not be too far from. the 40/60 setting, if Method 1 was used.

Also, check that the “out-of-tape” condition is recognized when the tape spring arm is raised.

I
I

mil”?
:

HOLE

wa
:
l

‘

READER STROBE H
D

PA63

NO HOLE

I I

READER STROBE H

PA68F
08-0778

Figure 5-11 Relationship of PR68B Reader Data Pulse and Strobe Pulse for PA63 and PA68F

5.4

PR68D/DA HIGH-SPEED PAPER-TAPE READER

The mechanical, electrical, electronic, and optical mechanisms of the PR68D/DA Reader can be adjusted if they
are

causing data errors. A multimeter and an oscilloscope are required to make the adjustments. The adjustable

mechanisms are shown in Figure 5-12. The tape guide, tape level slide, lamp voltage and sprocket wheel, and lens

alignment must be made before the G918 Amplifier can be adjusted. The G918 adjustment can be made without
an

oscilloscope, if necessary.

LAMP
TAPE
LEVEL
SLIDE

CONDENSI NG
LENS

SPRAgfi

ADJ
SCREW

TAPE
GUI DE

TAPE
BED

TAPE
LEVEL
SLIDE

ADJ

SCREWS

..,/

PHOTO

CELLS

SPROCKET

WHEEL

FRONT VIEW

Figure 5-12 PR68D/DA Reader Adjustment Location

“mu/J

5-10

ozEmm 2m<
mmwozi

buxoommm
JmMIZ 504
mgmmom

hum... Hzomu 35>

mu 210
mm 5:3;
mwgom
mum mega.
7W4

761M”?

czazmozoo
mzw...
304
meom

PIOE

14mm 3m.)

8&5 m3 {Samoan 33$ ESE? 8:83 :88

:-m

R37

(5918 PHOTO AMPLIFIER

MODULE

Figure 5-12 PR68D/DA Reader Adjustment Location (Cont)

5.4.1 Tape Guide
1.

Loosen two screws and adjust the tape guide so that the opening is centered over the photocells and
does not block the light path.

Place three thickness of paper tape in the reader and adjust the gap between the bracket and the tape.

Tighten the screws.
5.4.2

Tape Level Slide
.

5.4.3

Release the screw holding the tape level slide.

Adjust the slide for the tape being used. For 8-level tape, drop the slide to the lowest position and
tighten the screw. For 6-1eve1 tape, move the slide up until its surface is flush with the surface of the
tape bed and tighten the screw.

Lamp Selection and Voltage
1.

Rotate the lamp so that the filament produces an even beam of light and does not cast a shadow over
the apertures. There are two seams in the lamp that must be kept out of the light path.

5-12

NOTE
When installing a new lamp, select one that has a reasonably

straight and uniform filament. Always position the lamp with
the engraved end toward the frame.

Inspect the lamp for filament sag and replace it if sag is present.
Measure the voltage across the reader lamp. If it is not «5.8 Vdc, loosen the clamp on the 2552, 12W
power resistor and adjust it for the correct voltage. This adjustment compensates for variations in the
intensity of the light produced by the lamp.
'

5.4.4

Sprocket Wheel and Condensing Lens
1

Adjust the condensing lens so that the flat portion is parallel to the tape bed.

Project the forward edge of the light band along the leading edge of the data holes by rotating the
lamp or tilting the lens, if necessary. The lens should project a narrow beam that is wide enough to
cover the data holes

3..

completely (Figure 5-13).

Take

a short piece of 8-leve1 tape with a rubout code perforated about half way along the tape and
place it in the reader.
'

Release the two Allen set screws in the sprocket wheel and,.while holding the tape taut across the tape
bed and wheel,

move

the sprocket wheel laterally so that the holes in the tape are centered over

aperture (Figure 5-13). Be sure that the tape is not curled up against the back plate. Partially tighten
one of the screws.

DIRECTION OF
TAPE MOVEMENT
CENTER
LINE
'

s‘ '34"

DATA HOLE

POSITION OF
GLASS DOT FOR:
6 LEVEL TAPE

LEVEL TAPE

FORWARD EDGE
OF

LIGHT

BAND
11-1168

Figure 5-1 3 Relationship of Data Hole and Photocell for PR68D/ DA

Release the screw in the wheel and, while keeping the lateral position fixed, rotate the wheel axially

until the leading edge of the feed hole is just touching the forward edge of the light beam. Tighten the
Allen screws in the wheel.

///”MN\‘

5-13

NOTE

The lateral and rotational position of the sprocket wheel
provides clearance for the paper tape and positions the dataholes

over

the

correct

photocell apertures.

The correct

mechanical relationship of the data hole and the photocells is
shown in Figure 5-13. Notice that the relationship between

the holes and the glass dot is not the same for 6-level tape as
it is for 8-1evel tape. Refer to Paragraph 5.3.5.

Put the

spring arm down and check that the straight: part of the fingers are horizontal and just
touching the wheel (Figure 5-14). Also check that the fingers are centered over the sprockets on the
wheel, sighting from the top of the reader. Adjustment can be made by carefully bending the spring
arm and the fingers and, if necessary, using a pair of long nose pliers.
‘

Substitute a 6-level tape for the 8-level tape in the reader. The center of the data holes should be just
to the right of the glass dot on the photocell (Figure 5-13).

5-8°(APPROXJ

SPRING ARM

HORIZONTAL—\

FINGERS

WHEEL—\L

—\

KFOUR
po®
.CONTACT.
'

SPROCKET
WHEEL

SPROCKETS

08-0775

Figure 5-14 Spring Arm Adjustment for PR68D/DA

5.4.5 G918 Amplifier Adjustment

After all preliminary alignment and control settings have been made, the reader can be margined. The purpose of
the margin adjustment is to set the threshold bias level of the amplifiers at a point midway between the upper

and'lower margins. There are two methods of doing this, depending on the available test equipment.
Method 1 does not require any test equipment. The range of threshold potentiometer, R37, is determined by a
trial adjustment, using a diagnostic test program to read a test tape and the Teletype to identify the points at

which the reader causes an error by picking up and dropping bits. The potentiometer is set at a point midway
between these two points.

Method 2

requires

measurement; it

uses

oscilloscope.
test

This method determines the exact location of the

midway point by

programto read the test tape and an oscilloscope to monitor the relationship

between the data pulse from reader hole 0 and the strobe. The potentiometer is set at this point.

5-14

Method 1
Load MAI‘NDEC-OS-DZHC-PB into memory, using the

‘

Place a ls and Os test tape loop in the reader, select
switch.

Teletype.

program

10 and

depress

the

NTTA/Reader Select

Adjust potentiometer R37 on the G918 through its entire range, counting the number of full turns
required between the two points at which the Teletype responds.

NOTE
The minimum range of the potentiometer should be 10 turns.
If less than 10 turns are required, realign the
as directed1n

Set the potentiometer to

counted, set

the

Paragraph

5.4.4.

sprocket wheel

point midway between these two points. For example, if 10 turns are
back 5 turns from the point at which the last
Teletype was

potentiometer

obtained.

response

Methed 2
1.

Load the following program into location 7000:

7000/

7300

CLA CLL

6016

RRB RFC

601 1

RSF

5202

182 TEMP

5200

JMlP .-4

Place a Is and Os test tape loop in the reader.

Set SR‘to starting address (7000), depress LOAD ADD and START.

Depress the NTTA/ Reader Select sWitch.

Connect the oscilloscope as follOws:
’1
'

Channel

COnnection

A04T2

A02V2

Signal
.

’

+30V strobe
reader hole

‘

composite

NOTE
If there is no data signal on channel 2, adjust potentiometer
_

R37 on G918 until a data pulse appears.

The data pulse should coincide with the strobe as shown in Figure 5-15. The positive portion of the

data pulse should be centered on leading edge of the negative portion of the strobe. If the waveform
relationship is incorrect, align‘the sprocket wheel as directed in Paragraph 5.3.4.

5-15

——L__

STROBE CH1

—_—_!————
.

'<——— FEED HDLE

coRifé‘Ss‘ffié‘chz
,

«4—-

mo acre

f HOLE

___r‘—

.
.

"1" DATA

”0" DATA

"0" DATA

"1" DATA

"0” DATA

FEED

$652:

gill;
_L

"0" DATA

6—LEVEL TAPE WAVEFORM

8-LEVEL TAPE WAVEFORM

‘
‘

‘

03-0791

Figure 5-15 Relationship of PR68D/ DA Reader Data and Strobe Pulse

5.5

PP67C/ D HIGH-SPEED PAPER-TAPE PUNCH

All mechanical adjustments for the PP67C/D Punch are provided in Teletype Corporation Bulletin 215B. After
these adjustments have been made, operational adjustments can be made. Operational adjustment procedures are

provided in the following paragraphs for the punch mechanism and the low tape indicator arm.
5.5.1 Punch Mechanism Adjustment

The punch mechanism can be adjusted if it is causing perforation of incorrect data. An oscilloscope is required to

make the adjustment. The adjustment procedure is:

Load the following program into location 0200:

200/

7604

OSR

6314

PSC

7200

CLA

6026

PLS

6021

PSF

5204

JMP .-1

2220

ISZ TEMP

5206

J MP .-1

7040

CMA

5203

J MP .-6

.
.

NOTE

The program must contain a stall to check the feed hole
solenoid so that the solenoid is de-energized between

preceding program can be loaded
and used when checking all data solenoids and the feed hole.
character punching. The

Set SR to starting address (0.200) and depress LOAD ADD. Set SR bits 8 through 11

to punch N0 and

depress START.
3.

As the punch perforates alternate 0s and ls, check each solenoid by connecting the scope probe tothe
tab that

comes

from the solenoid driver via J l-L through I 1-9 (usually the solid color wire). Use
‘

channel 2 of the scope, with the INVERTER switch pulled out.

5-16

trailing

The “glitch” in the sawtooth waveform (Figure 5-16) should be positioned at the
edge as
shown. If it is not, loosen the two screws holding the punch solenoid clamp and adjust the solenoid.
NOTE
’

Move the solenoid

squarely in the vertical direction when
this
adjustment,
making
Tilting the solenoid may cause the
armature to slip out of the blocking pawl.

Loosen the screw holding the range finder and move the slide until punching begins to deteriorate.
Note the position on the scale.

Move the slide in the opposite direction until punching begins to deteriorate again. Note the positionon

the scale.

‘
‘

positions and tighten the screws.

Set the range finder midway between the two

NOTE

On a new or rebuilt punch the normal setting is 30°.

GND
H'-- GLITCH

GOOD

+3ov

~—.————-—«——-

\‘—-—4.5ms :5°/o--—-"

-d—¥-—4.5ms 15°lo—-——-—-

11-1170

Figure 5*»16 Punch Solenoid Waveform

5.5.2 Low Tape Adjustment

NOTE

’

The low tape adjustment is not required when the system is
’

equipped with a PA68F.

5-17

The low tape adjustment (procedure is:

Load the following‘program into lOcation 7000:

OSR

7000/ _7604
6314

‘

’PSC

CLA

7200
7001

IAC

6311

SKPNA.

5207

JMP .2

5203

JMP‘.~3

6026

‘PLS

6021

PSF

5210

JMP .-1

5203

JMP .-7

punchli‘to OFF.

Set the control switch on the

Install a tape spool on the punch, containing approximately 1/2 in. of

Set SR to starting address (7000) and

Set SR bits 8 through 11 to punch N_°_
andi‘depress START. The program should index the AC,
If a tape is
there is an error.
indicating that the punch is not

depress LOAD ADD.

Set the control switch

the punch to CONTINUOUS and

described1n step 5 should be obtained.
7

Set the control switch to AVAILABLE. A binary
Remove the

punched,

available.

paper tape left on the core.

STOP

WHEN DONE. The indication

count'pattern should be produced in the tape.

1/ 2 in. tape 'spool and install a tape spool containing approximately 3/8 in. of paper tape

left on the core. The NO TAPE lamp on the PA63 should light when the program is restarted and the

punch should stop producing the binary count pattern, indicating that the punch is not available
(out-of-tape). If tape is punched, loosen the two screws holding the low tape switch on the punch and
move the switch until the punch stops and the NO TAPE light on the PA63 goes on. Tighten the
screws and check that the punch is still not producing tape and the NO TAPE light remains on.
‘

5.6 4 ms CHANGE READER DELAY

The purpose of the 4 ms change reader delay adjustment is to set the period Of delay between reader selection
‘

and the time that the first character is read. An oscilloscope is required to make this adjustment. The adjustment
'
A
I

procedure is:

Load the following program into locatiOn 0200:

0200/

7200

CLA

6312

RSC

2220

182 TEMP

5202

JMP.-1

5200

JMP.-4

5-18

Set SR to starting address 0200, depress LOAD ADD and START.

Connect the oscilloscope to A26F2.

Adjust potentiometer R2 on M302 (Figure 5-17) to obtain the waveform shown in Figure 5-18.

/’"‘”‘\_

Figure 5-17 M302 Dual Delay Multivibrator Module}

4ms

-—>!

47115

08-0776

s‘5!

Figure 5-18 Change Reader Delay Waveform

5.7 1 SECOND CHANGE PUNCH

DELAY

The purpose of this adjustment is to set the period of delay between punch selection and the time the punch
motor reaches full speed. An oscilloscope is required to make this

Load the following program into location 0200:

0200/

6314

PSC

7402

HLT

5200

,JMP .-2

adjustment. The adjustment procedure is:

Set SR to starting address 0200, depress LOAD ADD and START.

Connect the oscilloscope to A26T2.

Adjust potentiometer R13 on M302 to obtain the waveform shown in Figure 5-19. Depress CONT
when the program halts to keep the punch running until the adjustment is completed.

F—ISEC—O‘

F—1sec——u|

____l

’

CONT

1___

NOTE:
On

controls used with 50 Hz punches,
delay to 2 seconds.

set the 1 second

08-0777

Figure 5-19 Change Punch Delay Waveform

5.8 MIXED TAPE LEVELS

Some systems must be capable of reading both 6- and 8-level tape. Where both tapes are advanced feed hole, the

procedure is the same as described above except that the check for skew should be made between hole 0 and
hole 7 (B28C1 on the PA63 or B10Cl on the PA68F).

When the 8-level tape is center feed hole, it has been found to be better, where possible, to reserve a reader for

reading 8-level tape only. If this is not practical, the readers should be set up for 6-1eve1 tape and then a marginal
re-adjustment of the sprocket wheel should be made, together with re-margining of the potentiometer, to
accommodate both tape levels.

When all

readers have been set up satisfactorily, do a final check, using either the Typesetting Configuration
'

MAINDEC-OS-DZHB or the TCSE.

‘

5-20

CHAPTERG
MAINTENANCE

6.1 TEST EQUIPMENT AND DIAGNOSTIC PROGRAMS

The tools and test equipment required for testing and repairing the hardware are listed in Table 6-1.

Table 6-1
Test Equipment and Tools

Item

Equipment
Test Equipment

Type
Tektronix Model 453 (or equivalent)

Oscilloscope
Volt—Ohmmeter

One W985 double-extender board

Extender Boards

Devices

Two W980 single-extender boards

Tools

The maintenance

Tool Box

DEC Field Service

Paper-Tape Gauge

DEC Part No. 18-09211

philosophy for Positive Logic Typeset-8 Systems is based on system checkout using test

programs and manual

adjustments. The diagnostic programs supplied by DEC can be used to verify normal

operation of the hardware or to indicate possible causes of malfunction. These. programs and the corresponding
'

documents are listed in Table 6-2.

Table 6-2

Diagnostic Programs

Program Number

Title

Document Number

DEC-OS-D 2HC-PB

DEC-08—D2HC-D

DEC-08—D 7CA-PB 1

DEC-O8—DC7A-D

Family of 8 Typesetting Configuration Test
Typeset—8 System Exerciser (TSCE)

MAINDEC -X8—

MAINDEC--X8—

Family of 8 Systems Exerciser

Module No.—

DIQAB-A—D

DEC-08«D7CA-PB2

Rev. No. -PB

MAINDCEC—OS-

MAINDEC-AOS-D2UA-D

D2UA-PB

6-1

PA60C Diagnostic

The Family-of—S Typesetting Configuration Tests consist of a package of programs used to test and adjust the

PP67C/D Punch, the PR68B Reader, the PR68D/DA Reader, and the associated control logic, individually and
in the
together. Any one of up to 16 readers or 16 punches can be tested. There are 14 individual
programs
package; these programs and there suggested uses are listed1n Table 6- 3.
Table 6-3

Typesetting Configuration Test Programs
I,

‘

No.

Program

Title

PRGO

Suggested Use

Basic Reader and Reader

Preliminary Test

Control Logic Test

Basic Punch and Punch

PRGl

Preliminary Test

Control Logic Test
'PRG2

Reader Test. Binary

Preliminary Test

Count Pattern
Punch Test. Binary

PRG3

Preliminary Test

Count Pattern

PRG4

Punch Verify. Binary

Preliminary Test

Count Pattern

PRGS

Punch Test. Random

Final Test

Characters

PRG6

Punch Verify. Random

Final Test

Characters
V

PRG7

Combined Reader and Punch

PRGIO

Preliminary Test Only

Test. Binary Count Pattern

Read Amplifier

Adjust—

Preliminary Test

ment Loop

PRGll

Read 6, stall 40 ms,

Preliminary Timing Test
'

reader adjustment loop
PRG12

“Change Reader Unit”
delay and adjustment loop

Preliminary Adjustment

PRG13

Continuous punch loop

Preliminary data transfer Test

PRG14

ls and Os test tape

Generate Test Tape for PRG lO
'

generator
PRGlS

“Punch Out of Tape”

6-2

Preliminary adjustment
Switch adjustment loop

The Typeset-8 System Exerciser (TSCE) is intended as a tool for verifying the operating ability of the hardware
in a typesetting system. It also serves as the normal means of determining system acceptance.

The TSCE program exercises the system hardware

simultaneously. It is not intended for use as a diagnostic

program for individual peripherals. The purpose of the program is to ensure proper system interaction between

peripherals that have previously been tested using the individual diagnostics, thus assuring proper performance of
the complete system configuration. The program overlays and intended use of each overlay is listed in Table 6-4.

Table 6-4

System Exerciser Overlays
A

Overlay

Intended Use

Preliminary check of Reader/Punch Selection Logic
Preliminary check of Reader/Punch Data Logic
Preliminary check of DECtape/DECdisk interaction
Final check of System Performance, including Line Printer

2
3

The

Family-of-S Systems Exerciser (DEC/X8) is a powerful expandable modular software system dedicated to

testing Family—of-8 hardware in a system environment. The structure of DEC/X8 enables the user to design a
unique operational exerciser consistent with his needs and the hardware configuration.

”X
,.

A minimum of 4K of memory is required; however, certain

capabilities cannot be used unless the system is

equipped with at least 8K of memory. The unusable features are noted in the program document. DEC/X8 can
be used with up to 32K or memory.

NOTE

DEC/X8 does not currently (August 1972) have a specific
module for
can

Typeset-8 Systems. However, existing modules

be used to verify the performance of Typeset-8 Systems.

Existing modules are described in the program document.
6.2 PREVENTIVE MAINTENANCE

Preventive maintenance comprises tasks performed at periodic intervals to ensure proper equipment operation
and minimum unscheduled downtime. These tasks consist of visual inspection,

operational checks, cleaning,

lubrication, adjustment, and replacement of borderline or partially defective parts.
Preventive maintenance procedures for all Typeset-8 Systems are provided in a separate document published by
Field Service. Refer to the current document to obtain the latest policies and procedures.

6.3 SPARE PARTS

Recommended spare parts for all Positive Logic Typeset-8 Systems are listed in Table 6-5. Replaceable parts are
listed and illustrated in Volume 2 for all DEC-manufactured hardware. The part numbers

provided for the

PR68B High-Speed Paper-Tape Reader are incorrect. The correct part numbers are listed in Table 6-6 according
to find number (item number).

6-3
.

Table 6-5

TypeSetting Spares
PR68B Readers

Part

Quantity

Condensing Lens 1-3/ 16 inch
Photocell Head Assembly

74—4989

29-1 5 961

Switch

74-4992

Tape Depressor Spring
Osram Bulbs 12V, 10W

74-4984

12-4734

Light
Bulb 330
Toggle Sw1tch (Submlniature)

12-2986

12-1 168

G900 (PR68A)

or G908

(PR68B)

DEC Number

“NTTA”

PR68B/DA Readers
'

Condensing Lens 1-3/16 inch

74-4989-1

Photo Transistor Block

70-65 92

Tape Depressor Spring

74-7719

Osram Bulb #6475

12-4734

GE Bulb #1445

12-9744

G918 (D and DA)

G930 (D only)

Switch, Momentary
or Switch, On/Off

12-5375 (PR68D)

12-5941 (PR68DA)

PP67C/ D Punches
Diode Pack MDA952-5

1 1-5 280

Switch T206

12-3374

Thyrector 6 RS 20894-B4

1 1-0106

SCR C203

11-1820

Diode MR2064

l 1-3183

Resistor 2582 10W

Solenoid Magnets

'“

’

29-13340
'

29-16402
T

Punch Block
6 level (PP67C)

29-11210

8 level (PP67D)

29-11199

G915 Module

—

Table 6-5

(Cont)

Typesetting Spares
Interfaces,

Modules

PA63

M710

Quantity
1

K303

M060

M216

M624

M161

M623

M401

PA68F
M710

M060

M401

M623

Table 6-6
Parts List For PR68B

Item No.

Part No.

Item NO-

Part N0-

7404983

9007649

9006022-1

7404977

9006560

7404986

7404992

7006337

7404984

9006020-1

1 2-47 47

9006003—1

10
12

7404989
‘

‘

7404989

9006027-1

7404979

7404976

12—4734

7404991

7404980

9006046-2

12-46 14

74-497 5

12-4713

7404982

9006022-2

7404988

90060261

7404978

7405595

12-3530

7406675

9006024—1

12-2986

74—4985

12-4628

9107684

90-06901

7404981

91-07350-4

7404974

91-07400-5

7404990

740733800

9006656

7005893—0-0

6-5

APPENDIX A
GLOSSARY OF TERMS

printing, graphic arts, and newspaper
fields.‘ This glossary is designed to provide DEC maintenance personnel with a basic understanding of the term-

The following pages. contain a glossary of termsycommonly used in the

inology used in these areas. Hopefully, this may lead to improved communication and a better understanding
of the problems encountered in those areas using the Typeset-8 System.
A standard of measurement for depth of columns of advertising space.

Agate line

Fourteen agate lines make one column inch.

Alterations

In compoSition, changes made in the copy after it has

Ascender

That part of the letter which rises above the main body, as in “b”.

Automatic allotting

been set in type.

Distribution of output tape codes to punches according to copy style.

Backing up

Printing the reverse side of a sheet already printed on one side. In
electrotyping, backing a copper shell with metal to make the plate the
required thickness.

Bad break

In composition, the setting of a hyphenated line as the first line of a page.
Also, incorrect word division.

Bands program

A program that uses space bands to justify lines of hot type.

Base

In composition, all the metal below the shoulder of a piece of type. In

letterpress,-the metal or wood block on which printing plates are mounted
to make them type high.
A

Base line

An imaginary line used as a reference in the measurement of leading.

Alphanumeric characters sit on this line, descenders go below this line
for example:

WWW

Basis weight

The weight in pounds of a ream (500 sheets) of paper cut to a given

standard size for that grade:
cover papers, 22

25 X 38 for book papers, 20 X 26 for

1/2 X 28 1/2 or 22 1/2 X 35 for bristols, 25 1/2 X 30 1/2

for index, e.g., 500 sheets 25 X 38 of 80-lb coated will weigh eighty pounds.
Bearer

In photoengraving, the dead metal left on a plate to protect the printing
surface while molding. In composition, type-high slugs locked up inside

a chase to protect the printing surface. In presses, the surface-to-surface
ends of cylinders that come in contact with each other.

Benday

A method Of laying a screen (dots, lines and other textures) on artwork
or

plates to obtain various tones and shadings.

In photoengraving, the various stages of standard etching

Bite

accompliShed
W

through the action of acid, the depth increasing after each bite.
In offset-lithography, a rubber-surfaced sheet clamped around

Blanket

the cylinder,

which transfers theimage from plate to paper

In offset-lithography and photoengraving, a photoprint

Blueprint

made from nega-

tives or positives, used as a proof.

B'o'dy

covering power of an

A term referring to the viscosity, consistency, or
ink or vehicle.

text type with which it is

A name given to type thatis heavier than the

Bold-face type

used.
In artwork and composition, to separate the

Break for color

different colors.

parts to be printed1n

paper.

Bulk

The degree of thickness of

Burnishing

In photoengraving, the corrective treatment of a

printing plate to darken

local areas by spreading the printing surface of lines and dots.
'

Burr

Rough edges of metal caused by routing or cutting.

Caliper

The thickness of

Caps and small caps

Two sizes of capital letters made1n one size of type, commonly usedin

paper, usually expressed in thousandths

of an inch.

most roman type faces.

reproduction,

Carbro

A photograph in full color, frequently used for process colOr

Chase

A rectangular metal frame in WhiCh type and plates are looked up for

91.2.31

printing.
Chicken plucker

Small hand. tool for modifying or correcting paper tape codes,

Cold type

See photocomposition.

Collate

In binding, the assembling of sheets or signatures.

Combination plate

In photoengraving, halftone and line work combined on one plate;
7

for both halftone and line depth.
Column indent
.

etched

A format in which all lines in a column are indented from the flush
position.

Comet

Trade name linecaster (See ElectrOn)

Composing stick

In composition, a hand tool in Which type is aSsembled and justified.

Condensed type

A narrow or slender type face.

Continuous tone

A photographic image which has not been screened and contains gradient

tones from black to white.

Any furnished material (typewritten manuscript, pictures, artwork) used
in the production of printing.

Copy

Curved plate

In letterpress, an electrotype or sterotype which is backed

curved to fit the cylinder of a rotary press.
Cut

In letterpress, a photoengraving of any kind.

up and pre-

In die-cutting, a sharp-edged knife, usually several thousandths of an inch
lower than the cutting rules in a die, made to out part way into the paper

Cutscore

or board

Densitometer

for folding purposes.

A sensitive photoelectric instrument which measures the density of photo-

graphic images, or of colors in color printing. Used in quality control to
determine accurately whether
color is consistent throughout the run.
Descender

That part of the letter which extends below the main body, as in “p”.

Display type

In composition, type set larger than the text, used to attract attention.

Distribution

In composition, the act of returning type, rules, leads, slugs, furniture,

and other printing materials to their proper places after use.

Doctor blade

In gravure, a knife-edge blade pressed against the engraved printing

cylinder which wipes away the excess ink from the non-printing area.
Dot

The individual element of a halftone.

Double dot halftone

Two halftone negatives combined into one printing plate, having greater
tonal range than a conventional halftone. One negative reproduces the
highlights and shadows; the other reproduces middletones. Used primarily
in offset-lithography.

Drier

In inkmaking, any substance added to hasten drying.

Dropout

A halftone with no screen dots in the highlights.

Dummy

A “preview” of a proposed piece of printing.

Duotone

In photomechanics, a term for a two-color halftone reproduction from a
one-color photograph.

Dump punch

A tape punch used to output a tape when the allotted punch cannot be

used.

Dropped rule

A straight type-high ruling slug often used to separate classified advertisements. See example below.
BABY'SITTER
ll

girl.

yr.

old

Once

needed,

Thursday

am.

Aqency

transportation,
mornirg.
any

weEK

p.m.

for

one

rate

paid

5432]

Def.

fee

Call

a.m.

Ho'U—SEREEEPER,
short

salary.

hours,
Must

steady
days per

have

fiéVQTr’rER

car.

dependable,
Weekly

week.

791-8762.

nEEdedmnile—as.

:35er

12:30. Call 365-6605.
week. 315
LIGHT housekeeping 8- some cocking
-

elderly

people.

Live

month.

9484598

in.

Les

Altos.

for

$150

812-7649.

Reprinted by permission of the Worcester Telegram and Gazette.
Electron

Trade name for a linecaster similar to the Linotype; operates in the 6 to
9 pt range.

Electron mixer

Same as Electron but capable of mixing up to four fonts in the 6 to 24-

point range.
Em

In composition, the square of a type body. '80 named because the letter

“M” in early fonts was usually cast on a square body.
En

One-half the width of an em.

Engraving

A general term applied to any printing plate produced by an etching or

cutting process.

A-3

Escapement

The distance that a carriage or lens mechanism moves for a character.

‘

Etch

In photoengraving, to produce an image on a plate by chemical or

electrolytic action. In offset-lithography, an acidified gum solution used
to desensitize the non-printing areas of the plate; also, an acid solution
added to the fountain water to help keep non—printing areas of the plate
free from ink.

Expanded type

Type whose width is greater than normal; also called extended type.

Face

The printing surface of a piece of type.

Feeder

The section of a press which separates the sheets and feeds them in

position for printing.

Filling in (or filling up)

A condition in letterpress or offset-lithography where ink fills the area

between the halftones dots or plugs up the type.

Flat

In offset lithography, the assembled composite of negatives or positives,

ready for platemaking. Also, a picture that is lacking in contrast.
Flow

The ability of an ink to spread over a surface or into a thin film.

Flush and Hang

A printing format in which the first line of text is set flush with the left

margin with all following lines indented. See example below.
WSRS-FM
WORCESTER-96.1 mcs
A..
6:00-~STE'REO AT DAYBREAK- Claus
Ogerma n; Andre Kostelanetzr
Howard Roberts Quartet; Anznony
Newley; Enoch Light; Norman Lubcft Choir.
9:00—S'TEREO MAGIC:
Tony Bennett;
Edmundo Ros; Peter Nero; Doris
Day; Andre Kostelanetz; Ray Connilf.
.M.
12:00—STEREO
SHOWCASE:
Peter
Nero; Matt Monro; Werner MulRonnie
ler;
Hart:
Rodgers and
Teresa
Aldrich;
Brewer;
Henry
IOl
Enoch
Mancini;
Strings;
Light; Mel Davis.
5:00—STEREO SPECTRUM: Andre PreJackie
Anita
vin;
Gleason;
.

‘

Bryant;

George

Shearing;

\
l

‘-

Man'o-

vani; Edm-undo Ros.
8:00—BEST OF BROADWAY; Ray Connitf;
Andre Previn;
IOI
Strings;

Living

Strings.

ON
POPS:
lO:00—TONIGHT
Richard
Tucker; A Pops Concert with various
artists;
Eugene
Ormandy;
Athena.
12:00—STEREO TILL SIX: Living Trio:

Hollywood Bowl Symphony; Glen
Nat
Frankie
Gray;
King Cole;
Carle; Enoch Light; Bob Eberly
Helen
Exodus
O'Connell;
(soundtrack);
Edwards;
Webley
Franklin;
Cole;
Cozy

and

Aretha
McGuire

Sisters.

Reprinted by permission of the Worcester Telegram and Gazette.
Flush blocking

Mounting a plate so that the printing surface is flush with the edge of the

”

block.

Flush left (or right)

In composition, type set to line up at the left (or right). This glossary of
terms is set flush left.

Flush paragraph

A paragraph with no indention.

Flying paster

In Web printing, an automatic pasting device that splices a new web of
paper onto an expiring roll, without stopping the press.

Font

A complete assortment of type of one size and face. In hot metal, a font

is stored in a magazine. In photocomposition, a font is stored in a,

masking device such as a disk, film strip or grid; or digitized and stored
on disks, in core memory, magnetic tape, etc., as in video display photocomposition machines.

A-4

Form

Type and other matter locked in a chase ready for printing.

Form rollers

The rollers, either ink or dampening, which contact the plate.

Format

The size, style, type page, margins, printing requirements, etc., of any

magazine, catalog, book, or printed piece.

Also, a predefined sequence

of codes or code strings used to simplify mark-up and or reduce keyI

strokes.

Furniture

In lockup, wood or metal blocks used to fill the blank spaces in a form.

Fuzz

Fibers projecting from the surface of a sheet of paper.

Gdhy

A shallow metal tray used to hold type.

Galley proof

A proof taken of type standing in a galley, before being made up into
'

pages.

Gathering

The assembling of folded Signatures in proper sequence.

Grippers

Metal fingers which hold the paper in place to the delivery end of a press.

Gripper edge

The leading edge of paper as it passes through a printing press.

Gripper margin

Unprintable blank edge of paper on which grippers bear, usually 1/2 inch

‘

or less.

Gutter

The blank space or inner margin, from printing area to binding.

Half-column cut

A photoengraved illustration, one-half column in width, inserted into a

column of text. Also called a run-around. See example below.
Dr. Andras

of' the

Fabry. a member
Royal College of Veter-

inary Surgeons. has "been
pointed to the
department of
p h

ap-

a
"

and tox
ic-ology of Ma-

cology
son

Research

21
Institute.
Harvard St., it
has
been annsunced.

Dr.

studied

Fabry
veteri-

Dr. Fabry
medicine
nory
in Liverpool, England. from 1956

1.962, and did postgraduate
wcrk anaesthetics at the University of Glascow.
to

Reprinted by permission of the Worcester Telegram and Gazette.
Halftone

A reproduction of continuous tone artwork, such as a photograph, with

the image formed by dots of various sizes.

Head margin

Hickeys

The white space above the first line on the page.
In offset-lithography, an imperfection in presswork due to many things

such as dirt on the press, hardened by specks of ink, etc.

Highlight

whitest parts in a printed picture, represented in a half-

The lightest or

tone by the smallest dots or the absence of all dots.

Hot-metal equipment

A class of machines producing lines of type (slugs) used in the making of

type cylinders for newspaper printing.

Imposition

The laying out of type pages in a press form so that they will be in the
correct order after the printed sheet is folded.

A-S

In printing, the pressure of type or plate as it comes in contact with the

Impression

paper.

Ink fountain

The container which supplies ink to the inking rollers.

Insert

A specially printed piece usually

Intaglio printing

Printing from plates in which the image is in intaglio or sunken below the
surface, such as in steel—plate engraving or gravure.

Justify

In composition, to space out lines uniformly to the correct length.

Kerning

RedUction of character escapement in order to condense words or lines

prepared for insertion in

}

publication.

of text-—used primarily in conjunction with larger point sizes.
To code copy to a dummy by means of symbols, usually letters. Insertions

Key

are sometimes

“keyed” in a like manner.

‘L

In lockup, a device for operat—

ing quoins.
In color printing, the plate used as a guide for the register of other colors.

Key plate

It normally contains the most detail.
The drawing or sketch of a proposed printed piece.

Layout
v

Leaders

’

In composition, rows of dashes or dots used to guide the eye across the
page. Used in tabular work, programs, tables of contents, etc.

Leads

Thin strips of metal placed between lines of type to separate them verti—

cally.
Leading

The amount of vertical space from baseline to base—in typeset copy.

Letterspacing

The spacing between each letter. of a word.

Letter press

The process of printing directly from an inked raised surface upon which

the paper is impressed.

Linecasting machines

Any of a group of keyboard and/ or perforated—tape controlled devices
which cast lines of lead type (slugs) using brass mats (matrices) as molds.

Linotype

Trade name for a hot-metal linecasting machine controlled from a keyboard or paper tape; operates in the 6 to 14 pt range.

Lockup

In letterpress, to position a form in a chase for printing.

Logotype (or logo)

Name of a company or product in a special

design'used as a trademark

in advertising.

Long ink

An ink that has good flow in the fountain.

Loose lines

Lines in which the total width of the mats used is less than the preset

‘

line length. When this occurs, the linecaster will not mold a slug.
Lower case

The small letters in type, as distinguished from the capital (upper case).
letters.

Ludlow

Trade name for a manually operated linecaster which produces type slugs
from hand-set type mats.

Magazine

In hot-metal typecasting equipment, a container, usually mounted at the

top of the equipment, from which type-molding mats are automatically
'

drawn to produce type slugs.

Makeready

In letterpress, the building up of the press form so that heavy and light
areas

print with the correct impression.

\/,

Makeup

In composition, thearrangement of lines of type and illustrations into
pages of proper length.

Mask

In color separation photography, an intermediate photographic negative
or

positive used in color correction. In offset-lithography, opaque material

used to protect open or selected areas of printing plates during exposure.

Masking paper

In offset‘lith’ography, goldenrod paper to which negatives are fastened in

stripping to produce a flat.
Mat

Newspaper term for a matrix.

Matrix

A mold in which type is cast in Iinecasting machines. In stereotyping,
the paper mold made from a type form.

Measure

In composition, the width of type, usually expressed in picas.

Middletones

The tonal range between highlights and shadows of a photograph or

reproduction.

Mixing

The process by which mats are drawn from different magazines on a

single Iinecaster to produce distinctive printing formats; as in advertisements. See example of four—magazine mixing below.

Air Conditioning

Ventilation

Heating

CUSTOM DESIGNED FOR

/“\

YOUR NEEDS

/'/

PROFESSIONALS

MG GORP.

123 May St, Melbourne
589-3341

Serv. The County Over 29 Years

Reprinted by permission of the Worcester Telegram and Gazette.
Moire

Undesirable screen pattern in color process printing caused by incorrect
screen

Mottle

angles of halftones.

‘

The spotty or uneven appearance of printing. Most pronounced in solid
'

areas.

Newsprint

A generic term used to describe the kind of paper generally used in the

publication of newspapers.

Nickeltype

In electrotyping, a plate on which the first deposit is of nickel and the

remainder of the shell is copper.

Nickeltypes give sharper definition in

printing and are more durable than copper.
No—B ands program

A program that uses fixed spacing and the auto-quadding features of a

Iinecaster to justify lines of hot type.

Offset printing

A printing process in which an inked impression from a planographic

surface is first made on a rubber—blanketed cylinder and then trans-

ferred to the paper being printed.

Opaque

In photoengraving and offset-lithography, to paint out areas on a negative
not wanted on the plate. In paper, the property which makes it less

transparent.

Overlay

In letterpress makeready, a piece of paper placed in the packing to make
_

that part of the form print more heavily. In artwork, a transparent or

translucent covering over copy where color break, instructions, or cor—
rections are marked.

Overprinting

Double printing; printing over an area that already has been printed.

Overset

In composition, type set in excess of space needs in publications.

Paragraph indent

A format in which the initial line

of a paragraph is indented with the

balance of lines flush left.

Pasteup

The preparation of copy for photographic reporduction by putting all

elements in the proper position.

Patent base

In letterpress, a slotted metal base on which unmounted electrotypes are
secured.

Perfecting press

A press which prints both sides of paper at one time.

Photocomposition

A process by which reproducible page masters are photographically

produced.

Photocomposition machine

A device that produces and composes type photographically. See

following:

C/A/T

—-

‘

Used for on-line text: and limited display composition with

direct computer drive; operating range is 6 to 36 pt in 15 sizes. It contains four completely independent font segments at a time. Each font
contains up to 102 characters.

Used for mixed text and display composition.
Compugraphic 4962
Type can be set from a film strip containing four 90-character fonts.

—

Compstar 191

—'-

Used for high-speed text and display composition;

operates in the 5 1/2 to 48 pt range. Machine has eight lenses and a
dual lensing feature that produces 15 point sizes.

Fototronic 480/ 1200

-—

Text and display composition.

Type Sizes range

from 5 to 72 pt depending upon disk, size, in 19 sizes. Each type disk

contains two, l20-character fonts, with five disks on the machine at one
time. Font capacity leaves 30 extra locations for storing pi characters,

accents, or other special characters.

FototronichT

——

Similar to the Fototronic 480/ 1200. The differences

are:

It is primarily a text-oriented machine with some display capabilities.

Type size range is from 5 to 736 pts in 15 sizes.

A-8

’

........

It uses a 12-position lens turret that puts up to 12 sizes of type on a
line at the same time, instead of the zoom lens optical system used
in the 480/ 1200.

Light source is an xenon lamp instead of a plasma jet.

Photon 513

——

*———-_—n

Used in display composition; operates in the 6 to 72 pt

range.

Photon 532

—

Computer slave used in text and display composition;

operates in the 4 1/2 to 72 pt range, in 23 sizes from two matrix disks

containing 32 90-character type faces (16 per disk).
Photon 560

—

Photon 561

—

Similar to the 513.

Similar to the 532. The 561 has only one glass matrix

disk instead of two. It holds 16 90-character typefaces rather than 32.

It can produce 12 type sizes for each face from the lens turret which does
not have the minifier lens that gives the 532 23 sizes.

Type size range is

5 to 72 pts.

Photon 713-5
.

Used in text and limited display composition; operates

—

in the 5 to 18 pt range, with two sizes and four faces. A single film strip
contains four 96-character fonts.

Photon 713-10

——

Used in straight text and limited display composition;

operates in 5 to 36 pt range, with font strips carrying 8 96-character type
faces in 8'sizes.
\_

Strips can be arranged singly or in duplexed pairs.

Photon 713-20

——

Similar to 713-10.

Photon 713-100
Photon 713-200

——

—

Similar to 713-10, but faster.
Similar to 713-100, but even faster. It has a 4K mini-

computer for memory.
Pacesetter

—

Used in high-speed text and display composition._ Operates

in 5 to 72 pt range. The number of typefaces and sizes depends on the

model, e.g., Pacesetter 45 has four faces in five sizes. Customer selects
up to 16 sizes, depending on specific requirements. A fully programmable

8K mini-computer provides the control logic and gives the Pacesetter far

greater format storage capacity than the 713 series.
Linofilm

—

Used in text and display composition.

Operates in the 6 to 54

pt range in five grid ranges. Enlargement and reduction capabilities
extend the range from 4 to 216 points. Each grid contains 88 characters.
Linofilm Quick

——

Used in straight text compositon; operates in the 6 to

18 pt range.

Linofilm Superquick

——

There are three versions of this machine; two

standard models and a wide range model. Standard models are available
in two or four-grid configurations; operating range is 5 to 18 pt. The

wide-range model has four grids with an operating range from 5 to 72 pts,
making it both a text and display composition machine.

V—I-P_—— Primarily a text composition machine; operates in the 6 to 48 pt
range. It can mix up to 6 96-character fonts in 16 sizes. A display
:1

.,/T\

attachment extends the range to 96 pts.

A-9

Type mixed and in an unusable condition.

Pica

Printer’s unit of measurement used principally in measuring lines. One

pica equals 1/6 of an inch.
Pica pole

See type gauge.

Picking

The lifting of the paper surface during printing. It occurs when pulling
force (tack) of ink is greater than surface strength of paper.
The building up or caking of ink on rollers, plate or blanket; will not

Piling

transfer readily.

Printer’s unit of measurement, used principally for designating type sizes.

Point

There are 12 points to a pica; 72 points to an inch.

Primary colors

In printing inks, yellow, magenta (process red) and cyan (process blue).
In light, the primary colors are red, green, and blue.

Process printing

The printing from a series of two or more halftone plates to produce inter-

mediate colors and shades.

Usually in four-color process: yellow, red,

blue, and black.

Progressive proofs

Proofs of each individual plate in a set of color process plates, pulled in
the proper colored inks, and also showing the results of adding each
color.
In composition, blank spacing material less than type high used to fill

Quad

out lines.

Quoin

Ingletterpress, steel wedge-shaped or expanding devices used in lockup.

Fitting of two or more printing images upon the same sheet of paper in
exact alignment with each other.

Crosses or other devices applied to original copy prior to photography.

Used for positioning negatives in perfect register, or for color register of
two or more colors in printing.

Reproduction proof

In composition, the proof of a type form for photographic reproduction.

Reverse plate

A printing plate in which the parts that are

usually black

or shaded are

reversed, so as to appear white or grey.

Cutting away the non-printing areas of a letterpress plate.

Routing
Sans-serif

Scale

‘

A typeface having no serifs.

The proportion between dimensions of an original and its reproduction.

Degree of enlargement or reduction.
Scanner

Electronic device designed to read typewritten copy optically.

Score

To impress or indent a mark with a string or rule in the paper to make

“

folding easier.
Screen

In photoengraving and offset—lithography, glass or film with cross-ruled
opaque lines or vingnetted dots used to reporduce continuous tone art-

work such as photographs.

Also, the number of lines or dots to the linear

inch on printed illustration.

Serif

The short cross-lines at the ends of the main strokes in roman type faces.

Set-off

In presswork, when the ink of a printed sheet rubs off or marks the next

sheet as it is being delivered.

A-IO

‘“

Formerly called offset.

’\

An increase or decrease in character escapement to expand or condense

Set size

‘

words or lines of text.
The darkest parts in a photograph, represented in a halftone by the

Shadow

largest dots.
Short ink

An ink that does not flow freely.

Signature

In book, magazine and catalog work, the name given to a large printed
sheet after it has been folded to the. required size.

Cutting printed sheets or webs into two or more sections by means of

Slitting

cutting wheelson the press or folding machine.
In composition, a one-piece line of type. Also a strip of metal, usually

Slug

6 points, used for spacing.
An alphabet of small capital letters available in most roman type faces

Small caps

approximately the size of the lower case letters. Used in combination
with larger capital letters.

A unit of two thin wedge-shaped pieces of metal used as spacers between

Space band

the words of a line of hot type.

Expandable from approximately a thin

space to an En space plus a thin space.
’

A proofreader’s mark, written in the margin, signifying that copy pre-

Stet

viously marked for corrections should stand as printed and not be
corrected.

Straight matter

Columns of printing containing continuous text matter using the same

type style and size.

See example below.

The Worcester Chapter ofrthe
Administrative
Management
Society. will hold “Education

Night" tomorrow at 6:45 pm. in
the Coach and Six Rgstaurant.
Highlighting the evening‘s activities will be the awarding of
a,

scholarship to 3 Worcester
high school student. a pan-

area

el discussion

"How Are We

Preparing Qur Young

People

For BusinesS‘?". and installation
of new officers for the

Coming"

year.

Reprinted by permission of the Worcester Telegram and Gazette.
Strike-through

The penetration of ink through paper.

Stripping

In offset—lithography, the arranging of negatives (or positives) in their
proper position on a flat prior to platemaking.

Substance

The weight in pounds of a ream (500 sheets) of paper out to the standard
size (17 X 22) for business papers (bond, ledger, mimeograph, duplicator,

and manifold); e.g., 500 sheets of 20-1b bond cut to the standard size
will weigh 20 lb.

,r/fl

A—ll‘

Tabular matter

Tabulated lists of data, often statistical. See examples of single—, and

half-column” tabular matter below.
American

National

Pct. GB

Chicago

.720

Detroit
Kansas City
Boston
Cleveland
New York

14
14

.654
.481

Cincinnati

Washington

13
15

California

Minnesota
Baltimore

.481
.480
480
.444
.433
.423

.423

FIFTH

$2,800. Claiming,
furlongs.

-—

year-olds,

‘

13
12

,12

\m/

Pct.

.677

11/2

Pittsburgh

.640

St Louis

.577

31/2

Chicago

.577

3V2

.500

15
14
Atlanta
San Francisco 14

51/2
5

Philadelphia

.500
.481

7% New York
7% Los Angeles

.400
.370

71/2 Houston

.27612

and

111 Merry Flight
113 County C.
111 Henry W.
Mr. Peppercorn
109 Abdicate
Madre To M’ket 104 Alex The Fox
123 Interstate
Winged Action

Blenham
Broken Note
Me Tarza’n

6
8
9

113
111
107
116
m
18

Reprinted by permission of the Worcester Telegram and Gazette
Used in newSpapers, the symbol “-30-” means the end of the story.

Thirty
Thin space

One-quarter to two-thirds the width of En space.
’

Lines in whiCh the total width of the mats used is too great to fit within
the jaws of the linecaster. Often produces a jam.

Tight lines

/
g

To exchange the position of a letter, word, or line with another letter,

Transpose

word, or line.
A printer’s tool calibrated in picas used to measure the various sizes of

Type gauge

types.
0.918 inch; the standard in letterpress printing.

Type high
Vacuum frame

In photoengraving and offset-lithography, a printing frame used in plate»

making. The negative (or positive) is held in close contact with the plate
by vacuum.

Vehicle

The fluid component of printing ink which acts as a carrier for the pigment.

Vignette

An illustration in which the background fades gradually until it blends
into the unprinted paper.

The process of cleaning the rollers, form or plate, and sometimes the

Washup

fountain of a press.
Web

A roll of paper used in web or rotary presses, printed,and most often

folded, pasted and counted in one continuous operation.
Web press

A general term applied to high—speed presses which print from continuous

rolls of paper.
The amount of pull or tension applied in the direction of travel of a web

Web tension

of paper by the action of a web-fed press.
'

White space reduction

‘

A technique used on Photon 713 machines to reduce escapement of

larger point sizes.

A-12

In composition, a Single word in a line by itself, ending a paragraph;

Widow

frowned upon in good typography.
The removal and/or conversion of justification and hyphenation codes

Wirestripping

in wire service tapesto meet the requirements of individual users.
In letterpress, a space, lead, or other spacing material which works

Work-up

itself to the surface during printing, normally caused by poor lockup.
In rotary letterpress, a thin one-apiece relief plate which is wrapped

Wrap-around plate

around the press cylinder; similar in appearance to an offset plate.
In proofreading, the mark “WF” indicates a wrong letter or character in

Wrong font
'

a line.

/m\
1

‘\

APPENDIX B

ENGINEERING DRAWINGS

B.1 ENGINEERING DRAWINGS

complete

set of

engineering drawings and module circuit schematics is provided with each manual in a

companion volume entitled, Typeset-8 System

——

Positive Logic, Engineering Drawings. The

general logic

symbols used on these drawings are described in the DEC Logic Handbook, 1971 and 1972.
Table B-1 is a summary of the Master Drawing Lists included in Volume 11. Each Master Drawing List provides a

detailed index of the specific drawings that are included in Volume II for each unit. Any drawings that are not
indexed in a Master Drawing List, but included in Volume II are also included in the index of Master Drawing
Lists. To locate a specific drawing for a given unit, refer to the index of Master Drawing Lists first, and then refer

/"\

to the appropriate Master Drawing List.

Table B-1

Index of Master Drawing Lists

Drawing No.

Title

No. of Sheets

A-ML-PA63-O

Master Drawing List for PA63

16-Channel Reader/Punch

Multiplexer

’A-ML-PA68-F

Master Drawing List for PA68-F

Reader/Punch Control and Interface Unit
A—ML—PR68-B

Master Drawing List for PR68-B

High-Speed Paper-Tape Reader
B—CS-G908-0-l

G908 Photoamplifier Module

A-ML—PR68-D

Master Drawing List for PR68-D

‘

High-Speed Paper-Tape Reader
A-ML—PR68-DA

Master Drawing List for PR68-DA

High-Speed Paper-Tape Reader
A—ML—PP67-C

Master Drawing List for PP67-C

High-Speed Paper-Tape Punch

B-l

Table B-1 (Cont)
Index of Master Drawing Lists

Drawing No.

Title

A-ML-PP67-D

Master Drawing List for PP67-D

High-Speed Paper-Tape Punch
C—CS-G773-0-1

Cable Connector

A—PL-PA63-O- 1 4

Module Utilization Parts List

A-PL-PA68-F-5

Module Utilization Parts List

No. of Sheets

F“

finrmnflt‘amlmnmtymflmnmnfimr‘s

TYPESET-8 SYSTEMS

READER’S COMMENTS

POSITIVE LOGIC MAINTENANCE MANUAL
DEC-08-HMMPA-A-D

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