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EK-VT220-IN-002

August 1984

24 pages

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0.9MB

Document:	VT220 Installation Guide 198408
Order Number:	EK-VT220-IN
Revision:	002
Pages:	24
Original Filename:	http://bitsavers.org/pdf/dec/terminal/vt220/EK-VT220-IN-002_VT220_Installation_Guide_198408.pdf

OCR Text

VT220
Installation Guide

. ~DmDDmD

EK-VT220-IN-002

VT220
Installation Guide

Digital Equipment Corporation

1st Edition, August 1983
2nd Edition, August 1984
Copyright c 1983, 1984 by Digital Equipment Corporation.
All Rights Reserved. Printed in U.S.A.
The reproduction of this material, in part or whole, is strictly prohibited. For
copy information, contact the Educational Services Department, Digital
Equipment Corporation, Maynard, Massachusetts 01754.
The information in this document is subject to change without notice. Digital
Equipment Corporation assumes no responsibility for any errors that may
appear in this document
This equipment generates and uses radio frequency energy and if not
installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause interference to radio and television
reception. It has been type tested and found to comply with the limits for a
Class B computing device in accordance with the specifications in Subpart
J of part 15 of FCC Rules, which are designed to provide reasonable
protection against such interference in a residential installation. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio or television
reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of
the following methods:
•
•
•
•

reorient the receiving antenna
relocate the computer with respect to the receiver
move the computer away from the receiver
plug the computer into a different outlet so that computer and
receiver are on different branch circuits.

If necessary, the user should consult the dealer or an experienced radiol
television technician for additional suggestions. The user may find the
booklet How to Identify and Resolve Radio/TV Interference Problems,
prepared by the Federal Communications Commission helpful. This booklet
is available from the U.S. Government Printing Office, Washington, DC
20402, Stock No. 004-000-00345-4.
The following are trademarks of Digital Equipment Corporation, Maynard,
Massach usetts.

mDmDDma
DEC
DECmate
DECnet
DECsystem-10
DESYSTEM-20

DECUS
DECwriter
DIBOL
LA
MASSBUS
PDP

PIOS
Professional
Rainbow
RSTS
RSX

UNIBUS
VAX
VMS
VT
Work Processor

CONTENTS

Unpacking.........................................................

Connectors ........................................................

Installation.. ..... ...... ... ............. ................... .........

Problem Solving ................................................... 12
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13

iii

UNPACKING
Unpack and check the contents of each carton.

10
~

KEYBOARD

KEYBOARD CAB LE

VIDEO TERMINAL
INSTALLATION GUIDE
POWER CORD

Y-.

~
.... .
-6;~_ .. _/

KEYBOARD STANDOFFS

OWNER'S MANUAL

~.
~

PROGRAMMER
POCKET GUIDE

Missing Items?
• Identify item(s).
• Contact your sales representative and delivery agent.

Damage?
• Stop unpacking.
• Contact your sales representative and delivery agent.

KEYBOARD
LEGEND STRIP

CONNECTORS
Identify the connectors on the rear panel of the terminal.

POWER ON/OFF

20mAHOST
PORT CONNECTOR

FUSE

KEYBOARD
CABLE CONNECTOR

PRINTER PORT
CONNECTOR
MA-0713-B4

INSTALLATION
Install the legend strip.
1. Open the clear plastic window.

MA·0776·83

2. Insert the new legend strip directly over the one already on the
keyboard.

3. Close the clear plastic window.

Install the keyboard standoffs.

KEYBOARD STANDOFF

MA·0778·B3

Connect the keyboard to the video terminal.
1. Insert the longer end of the keyboard cable into the connector
on the bottom of the keyboard.
2. Press the cable into the short
groove ofthe keyboard if routing
to the left.
3. Press the cable into the long
groove of the keyboard if routing
to the right.
4. Insert the keyboard cable into
the connector on the rear of the
terminal.
KEYBOARD
CABLE CONNECTOR

11----;.- LONG GROOVE

7-----J

KEYBOARD
(BOTTOM VIEW)
KEYBOARD CABLE

VIDEO TERMINAL
(REAR VIEW)
MA-0712-84

Check the voltage selection switch setting.
j

Check the voltage selection switch setting to make sure it matches the
source voltage that will power the terminal.
NOTE: Digital presets the voltage selection switch on your terminal for
the country where the terminal will be installed. If the switch is not set to
match the source voltage you use, call Digital Field Service to change the
switch setting and the fuse.
CAUTION: Your terminal can be damaged if the voltage selection switch
is set incorrectly.

.I~I
230V

.I~I
115V

MA-0599~84

Make sure the power switch is in the 0 (off) position.

EAD CAUTION LABEL OVER POWE
CORD CONNECTOR, THEN REMOVE LABEL.
MA-0796~83

Plug the power cord intothe power cord connectoron the
video terminal and into the wall outlet.

WALL

--=
@

POWER CORD
CONNECTOR

OUTLET

- -.0
0

_" ... "." , ...... I!!l

POWER CORD

~ 1st
MA·0797·83

Start uP your terminal.
1. Set the power switch t

o 1 (on pos·t·
I Ion).

I VT220 OK I

...~

.::::_

I .... HttO'

POWER OK
INDICATOR

•

~~i;'mm'i_ ~~
MA-0715_84

3. Listen for a bell t one from the keyb
4. Wait about 30
oard.
screen.
seconds for the dis p Iay shown above t
NOTE:

0 appear on the

If you h

ad problems, refer to the up
roblem Solving" s ectlon.
.

Set the brightness and contrast controls.
1. Increase both the brightness and contrast to maximum.
2. Decrease the brightness until the white diagonal lines just disappear.
3. Decrease the contrast to the desired intensity.

max

min

max

min

BRIGHTNESS
CONTROL

CONTRAST
CONTROL

TILT CONTROL
MA-0843-B3

Adjust the viewing angle.
1. Rest the front of the monitor on a flat surface.
2. Raise the rear of the monitor until the screen is at the desired viewing
angle.
3. Press the tilt leg release button to release the tilt leg.

TILT LEG
RELEASE BUTTON

TILT LEG
MA-0799-83

Refer to the following illustration for connecting the
optional EIA, 20 mA, or printer cables to your terminal.
CAUTION: Set the power switch to 0 (off position) before connecting
cabfes.

IComm 11------=-----:. . .
EIA HOST PORT
CONNECTOR FOR
CONNECTING TO
MODEM OR TO
LOCAL COMPUTER
(OPTION)

20mA HOST PORT
CONNECTOR FOR
CONNECTING TO
LOCAL COMPUTER
(OPTION)

PRINTER PORT
CONNECTOR FOR
CONNECTING TO
PRINTER
(OPTION)

MA-0716·B4

Set the power switch to 1 (on position) after connecting
cables.

You have installed your video interminal successfully. Refer to your owner's manual for information
to get you started on your new VT220 terminal.

PROBLEM SOLVING
Problem

Corrective Action

Power OK indicator is off.

Check the wall outlet. Make sure power cord
connections are secure.

Power OK indicator is on.
Keyboard bell tone heard.
No screen display.

Adjust brightness and contrast until "VT220
OK" appears on the screen. (See page 9.)

Other

Call your local Digital Field Service office for
assistance.

SPECIFICATIONS
Site Planning
Video terminal weight

11.8 kg (26 Ibs)

Keyboard weight

2 kg (4.5 Ibs)

Electrical requirements

90 Vac to 128 Vac
47 Hz to 63 Hz
or
180 Vac to 268 Vac
47 Hz to 63 Hz

Operating Conditions
Relative humidity

10% to 90%

Temperature

10° C to 40° C
(50° F to 104°F)

Readel's Comments

VT220 INSTALLATION GUIDE

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(Ref. page no., table no., figure no.) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

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The Documentation Products Directory and the DECdirect Guide contain information on the
remainder of DIGITAL's technical documentation.
Copies of the above Directory and Guide, as well as additional copies of this document, are
available by writing or calling:
Digital Equipment Corporation
Accessories and Supplies Group
P.O. Box CS2008
Nashua, New Hampshire 03061
Attention: Documentation Products
Telephone: 1-800-258-1710
Order No.

EK-VT220-IN-002

-----

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EK-VT220-IN-002