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EK-H742-IP

October 1976

10 pages

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0.5MB

Document:	H742 Power Supply IPB 197610
Order Number:	EK-H742-IP
Revision:
Pages:	10
Original Filename:	http://bitsavers.org/pdf/dec/powerSupply/EK-H742-IP_H742_Power_Supply_IPB_197610.pdf

OCR Text

EK-H7 42-IP-002

ILLUSTRATED
PARTS
BREAKDOWN

H742
POWER SUPPLY

HOW TO USE THE IPB
!",I

. t' ~

GENERAL
This IPB is compiled following the organization and nomenclature
of the engineering drawing structure.
MAJOR ASSEMBL V LOCATOR
The Major Assembly Locator (first illustration) is an index that
provides a description and a figure reference for all illustrations used
in this manual.
INDENTED PARTS LIST
This manual identifies each assembly being broken down (figure
reference callout), and all parts of that assembly. Further
breakdown of an assembly is shown by an asterisk(*) preceding the
item callouts in the Description Column. The number of asterisks
preceding an item is used to denote the subordination of that item
with respect to the Major Assembly. A single asterisk preceding an
item description indicates that the item is part of the major
assembly being illustrated. Items that are subordinate to single
asterisks items, are denoted by two asterisks (**) and immediately
follow the related single asterisk item. Additional asterisks are used,
as required, to denote further subordination. This system of part
identification, provides a means for the user to identify the next
higher assembly item and make alternate selections for parts when
the required replacement part or assembly is not immediately
available.
COLUMN CALLOUT DESCRIPTION
Figure & Item - Indicates the figure number and item number of
each part.

ECO Cut-In - The notation at the top of this column indicates the
ECO level of the system (option), at which the iPB was initially
prepared. Subsequent ECO level designations, that modify existing
parts or add new parts to the device, are inserted in the ECO Cut-In
column next to the part that is added or modified. A bracket ( [)
preceding the item description is used to indicate the parts affected
by ECO's.
Vendor Code/Part No. - Indicates vendor parts that are not stocked
by DEC. Refer to the Field Service Spares Catalog (vendor part
number to DEC part number) for the vendor code cross-reference.
Used On Code - Letters in this column correspond to the variation
codes assigned in Figure 1. Parts with an Alpha notation(s) are used
only in those option variations. A blank indicates that the part is
used on all option variations.
Ref Fig No. - A cross reference between illustrations. For each
Major Assembly, the number in this column denotes the figure of
the next higher assembly. For all subassemblies, the number in this
column denotes the figure showing additional detailed breakdown.
SYMBOL USAGE
Hardware Designators - Alpha designators for screws (S), washers
(W), nuts (N), and retaining rings (R) are inserted after the item
number callouts on the illustration when stacked item numbers are
used.
Attaching Hardware - The @ symbol is inserted before any part
that is used as attaching hardware. Attaching hardware is denoted as
those parts that are not an integral part of the referenced assembly.

Description Lists the name of the part and pertinent
specifications (when required). Asterisks preceding the description
denote the subordination of the part to the next higher assembly.

(NFR) Not Field Repairable - The (NFR) symbol is inserted after
any assembly that is not to be field dismantled.

DEC Part No. - Lists the DEC part ordering number. A blank in
this column indicates a DEC part number was not assigned at the
time of publication.

Other Symbols - Any other symbols that are required for kits,
accessories, etc., will be explained and appear as part of the item
description.

REVISION HISTORY
ECO LEVEL

PRINTING
2nd Printing

H742

00000-00024

DATE

PAGES AFFECTED

10-13-76

This 2nd Printing EK-H742-IP-002
Supersedes 1st Printing DEC-H742-IPB-001

54-09730 00006-0001 5

(NOTE THAT THE DOCUMENT NO.
OF THIS IPB HAS CHANGED)

t ~.
!

Copyright© 1974, 1976 by Digital Equipment Corporation
DEC reserves the right, without notice, to make substitutions and
modifications in the specifications of products documented in this
manual and further reserves the right to withdraw any of these
products from the market without notice.

DEC is not responsible for errors which may appear in the technical
description (including illustrations and photographs) of the products
covered by this manual.
None of the descriptions contained in this manual imply the
granting of any license whatsoever to make, use or sell equipment
constructed in accordance therewith.
Printed in U.S.A.

(Decals)

40
41
42

24S

10W

#lJ

H742 - 0 1

Figure 1.

H742 Power Supply Assembly (Sheet 1of2)

IPB-H742

~omoo~o\
usT/
PARTS

17
\

v~
!

H742-o2

Figure 1.

IPB-H742

H742 Power Supp/y Assembly (Sh eet 2 of 2)

FIG

&
ITEM
NO.

DESCRIPTION

H742
00000

VENDOR
USED ON
CODE

CODE

REF
FIG
PART NO. NO.

H742 POWER SUPPLY
Code A Code B Code C Code D 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

Used on Model H742-A (115V)
Used on Model H742-B (230V)
Used on Model H742-C ( 115V)
Used on Model H742-D (230V)

*Chassis
*Transformer (T1)
*Screw, Phi Truss Hd No. 10-32 x 3/8
*Washer, Lock Ext Tooth No . 10
*Fan, Boxer, IMCWS2107F-110-01
(Used with Items 8 and 9)
*Fan, Boxer, Rotron CT3A2
(Used with Items 12 and 13)
*Fan, Boxer, Howard 9-30-8120 (Added)
(Used with Items 12 and 13)
*Screw, Phi Pan Hd No. 6-32 x 5/8
(Used with Item 5)
*Clip, Fan Mtg (Used with Item 5)
*Washer, Lock Ext Tooth No.6
*Screw, Phi Pan Hd No. 6-32 x 1 /2
(Used with Item 6) (Deleted)
[*Nut, Kep No. 6-32 (Deleted) (Used with Item 6)
*Clip, Fan Mtg (Added) (Used with Item 6 or 7)
*Screw, Phi Pan Hd No. 6-32 x 9/16 (Added)
(Used with Item 7)
*Holder, Ty Wrap
*Screw, Phi Pan Hd No. 10-32 x 3/8 Sems
(Added)
*Box, Power Control
*Screw, Phi Pan Hd No. 6-32 x 1/4
*Screw, Phi Truss Hd No. 6-32 x 3/8 (Added)
*Nut, Hex No. 6-32 x 5/16 x 1/8 (Added)
*Capacitor (C1,C2) 2 x .1 MFD @440V AC
*Nut, Kep No. 6-32
*Strip, Jones 4 Conn. (TB1 l
*Strip, Jones 12 Conn. (TB2)
*Screw, Phi Pan Hd No. 6-32 x 9/16
*Terminal, Solderless (Double Upright 90°)
*Terminal, Solderless (Double 45°)
*Terminal, Tab, Single Male 90° (Added)
*Terminal, Solderless (Single Flat)
*Jumper, Mechanical (Used with Item 22)
*Circuit Breaker 15A (CB1 l
[*Light, Pilot ( L 1) (Deleted)
*Light, Pilot ( L 1) (Added)
*Connector, Mate-N-Lok, 9 Pin (Female)

[Connector. Mate-N-Lok, 12 Pin (Female)
(Deleted)
*Connector, Mate-N-Lok, 15 Pin (Female)
(Added)

DEC
PART NO.

ECO
CUT-IN

H742-A
H742-B
H742-C
H742-D

A
B

c
D

53-09755-00
16-10857-00
90-06071-03
90-07651-00
12-09403-01
12-09403-01
12-02765-01

00020

90-06025-01
90-09165-00
90-07649-00
90-06024-01

0020A

90-06560-00
90-08208-00
90-07793-01

00020
00020

90-07033-00
90-09228-00

0001A

53-09854-00
90-06020-01
90-06022-03
90-06558-00
10-10193-00
90-06560-00
90-06903-00
90-06916-00
90-07793-01
90-0711 3-00
90-07269-00
90-08219-00
90-07112-00
90-09002-00
12-10191-03
12-01280-00
12-11263-00
12-09350-09
12-09350-12
12-09350-15

0001A
0001A
00023

00024

CD
AB

00011

00001

IPB-H742

.__,,.......

FIG

ECO
CUT-IN

&
ITEM
NO.

DESCRIPTION

DEC
PART NO.

H742
00000

VENDOR
USED ON
CODE

CODE

REF
FIG
PART NO. NO.

·-

133
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

*Contact (Female)
*BALUN ASSEMBLY (Added)
*Contacts (Male)
*POWER CONTROL BOARD ASSEMBLY
*Tab, Faston (.250 Series) Blue
*Tab, Faston (.250 Series) Red
*Terminal, Ring, Blue
*Decal, H742A
*Decal, H742B
*Decal, H742C
*Decal, H742D
*Cord, Power (115V)
*Cord, Power (230V)
[*Strain Relief (Deleted)
*Strain Relief (Added)
*Fan, Peewee Boxer
*Screen, Mini Boxer Fan (Added)
*Washer, Lock Int Tooth No. 6 (Added)
*Cover, Power Control
*Cover, Power Control
*Screw, Phi Hd Pan No. 6-32 x .38
*Bracket, Power Supply
*Spacer, No. 6-32 x 3/16
*Screw, No. 6-32 Sems x 3/8
*Strip, Extended Neoprene (Added)
*Adhesive, Hyband 80 (Added)

12-09379-01
16-11444-00
12-09378-01
54-09730-00
90-07919-00
90-07917-00
90-07929-00
53-1 0459-00
53-10460-00
53-10461-00
53-10462-00
17-00006-06
17-00016-06
90-08492-01
90-08509-00
12-10719-00
70-09737-00
90-06633-00
53-09850-00
74-09702-00
90-06022-01
74-09701-00
90-06796-00
90-06453-00
90-07966-00
90-07594-00

00016
2

A
B

c
D
ACD
B
00020
00020
00020
AB
CD
CD
CD
00022
00022

•

IPB-H742

~n~nomo\
LIS~;
PARTS

49
50

8
48
53
10

31
3
4S
5N

34 34 25

18
44
45

46 s
47N

32 21

H742-03

Figure 2.

Power Control Board Assembly (Etch Rev. D)

IPB-H742

-------

FIG

&
ITEM
NO.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

DESCRIPTION

DEC
PART NO.

POWER CONTROL BOARD ASSEMBLY
(Etch Rev. D)

54-09730-00

*Board Power Control (Etch Rev. D)
*Capacitor (C1) 5.SK MFD 40V
*Clamp
*Screw, Phi Pan Hd No. 8-32 x 3/8
*Nut, Kep No. 8-32
*Capacitor (C2) 50 MFD 25V
*Capacitor (C3) 20 MFD 60V
*Capacitor (C4) .22 MFD 50V
*Diode, Bridge (D1) NSS 3514
*Diode (D2) IN 0751AZ
*Diode (D3) IN 5353B
*Diode (04) IN 4001
*Diode (05) D664
*Diode (D6) IN 746A
*Diode (D7) IN 2970B
*Diode (D8 thru D11) IN 4002
*Diode (D12) 5.1V 1MA
*Transistor (01) MJ1000
*Transistor (02) DEC 2219
*Transistor (03,06,07,08,09,012,013)
MPSA55
*Transistor (04,010,014,016) 2N1308
*Transistor (05,011,015,017) 2N1309
*Resistor (R1) 39K Ohm 1/2W 5%
*Resistor (R2,R3) 200 Ohm 5W 5%
*Resistor (R4) 390 Ohm 1/4W 5%
*Resistor (R5) 5.1 Ohm 1/4W 5%
*Resistor (R6,R9) 1 K Ohm 1/4W 5%
*Resistor (R7) 270 Ohm 1/4W 5%
*Resistor (R8) 1.5K Ohm 1W 10%
*Resistor (R10) 390 Ohm 2W 10%
*Resistor ( R11) 560 Ohm 1 /4W 5%
*Resistor (R14,R25,R26,R27) 470 Ohm 1/4W
5%
*Resistor (R15) 27.4K Ohm 1/SW1%
*Resistor (R16,R21,R22) 101< Ohm 1/8W 1%
*Resistor (R17) 3.48K Ohm 1/SW 1%
*Resistor (R18) 2.49K Ohm 1/2W 1%
*Resistor (R19) 3.16K Ohm 1/8W 1%
*Resistor (R20) 4.64K Ohm 1/8W1%
*Resistor (R23) 2.0K Ohm 1/SW 1%
*Resistor (R29) 2K Ohm 1/2W1%
*Resistor (R30) 24.3K Ohm 1/8W 1%
*Resistor (R31) 10 Ohm 1/4W 5%
*Heat Sink
*Compound, Thermal Joint
*Insulator, Washer
*Screw, Phi Pan Hd No. 4-40 x 1/2
*Nut, Kep No. 4-40
*Terminal, Ring
*Connector, Mate-N-Lok (J1) (4 Pin)
*Contacts, Female
*Connector, Mate-N-Lok (12 Pin)
*Contacts, Female
*Fuse (F1)

50-09729-00
10-1 0860-00
90-07093-01
90-06037-01
90-06563-00
10-01796-00
10-1 0716-00
10-10274-00
11-10714-00
11-05873-00
11-1 0854-00
11-02942-00
11-00114-00
11-04860-00
11-001 34-00
11 -04861-00
11-1 0925-00
15-1 0853-00
15-01881-00
15-10706-00

ECO
CUT-IN
54-09730
00006

VENDOR
USED ON
CODE

CODE

REF
FIG
PART NO. NO.
1

15-00583-00
15-01 311-00
13-00443-00
13-09639-00
13-00309-00
13-09422-00
13-00365-00
13-01972-00
13-00395-00
13-01880-00
13-01890-00
13-00316-00
13-0941 7-00
13-0331 2-00
13-05114-00
13-00424-00
13-03045-00
13-04856-00
13-02715-00
13-02329-00
13-09418-00
13-01317-00
12-05817-00
90-08268-00
90-06721-00
90-06013-01
90-06557-00
90-07930-00
12-09350-04
12-09456-00
12-09350-12
12-09379-00
90-07221-00

--·

IPB-H742

~n~nomo\
LIS~/
PARTS

49
50

10
31

4 ~SN

32 21

H742· o4

Figure 2A . Piower Control Board Assembly (Etch R ev. E)

IPB-H742

FIG
&
ITEM
NO.
2A-

1
2
3
4
5
6
7

s
9
10
11
12
13
14
15
16
17
1S
19
20
21
22
23
24
25
26
27
2S
29

30
31
32
33
34
35
36
37
3S
39
40
41
42

DEC
PART NO.

DESCRIPTION
POWER CONTROL BOARD ASSEMBLY
(Etch Rev. E)

54-09730-00

*Board, Power Control (Etch Rev. E)
*Capacitor (C1) 5.8K MFD 40V
*Clamp
*Screw, Phi Pan Hd No. S-32 x 3/S
*Nut, Kep No. S-32
*Capacitor (C2) 50 MFD 25V

50-09729-00
1o~1 os6o-oo
90-07093-Q1
90-06037-01
90-06563-00
10-01796-00
10-1 0716-00
10-1 0716-00
10-00002-01

[*Capacitor (C3) 20 MFD 60V
*Capacitor (C3) 20 MFD 5% 60V (Deleted)
*Capacitor (C3) 20 MFD 5% 50V (Solid
Tantalum) (Added)
*Capacitor (C4) .22 MFD 50V
*Diode, Bridge (D1) NSS 3514
*Diode (D2) IN 0751AZ
*Diode (03) IN 53538
*Diode (D4) IN 4001
*Diode (05) D664
*Diode (D6) IN 746A
*Diode (07) IN 2978
*Diode (DS thru D11) IN 4002
*Diode (D12) 5.1V1 MA
*Transistor (01)MJ1000 (Deleted - See Item 55)
*Transistor (02) DEC 2219
*Transistor (03,06,07,0S,09,012,013)
MPSA55
*Transistor (04,010,014,016) 2N1308
*Transistor (05,011,015,017) 2N1309
*Resistor (R1) 39K Ohm 1/2W 5%
*Resistor (R2,R3) 200 Ohm 5W 5%
*Resistor (R4) 390 Ohm 1/4W 5%
*Resistor (R5) 5.1 Ohm 1/4W 5%
*Resistor (R6,R9) 1K Ohm 1/4W 5%
*Resistor (R7) 270 Ohm 1/4W 5%

[*Resistor (RS) 1.5K Ohm 1W 10%
*Resistor (RS) 1.5K Ohm 1W 10% (Deleted)
*Resistor (RS) 1 K Ohm 2W 10% (Added)
*Resistor (R10) 390 Ohm 2W 10%
*Resistor (R11) 560 Ohm 1 /4W 5%
*Resistor (R14,R25,R26,R27) 470 Ohm 1/4W
5%
*Resistor (R15) 27.4K Ohm 1/8W 1%
*Resistor (R16,R21,R22) 10K Ohm 1/SW 1%
*Resistor (R17) 3.4SK Ohm 1/8W 1%
*Resistor (R18) 2.49K Ohm 1/2W 1%
*Resistor (R19) 3.16K Ohm 1/8W 1%
*Resistor ( R20) 4.64K Ohm 1/8W 1%
*Resistor (R23) 2.0K Ohm 1/SW 1%
*Resistor (R29) 2K Ohm 1/2W1%
*Resistor (R30) 24.3K Ohm 1/8W 1%
*Resistor (R31) 10 Ohm 1/4W 5%

IPB-H742

10-10274-00
11-10714-00
11-05S73-00
11-1 OS54-00
11-02942-00
11 -00114-00
11-04S60-00
11-00134-00
11 -04S61-00
11-1 0925-00
15-1 OS53-00
15-01SS1-00
15-10706-00
15-00583-00
15-01 311-00
13-00443-00
13-09639-00
13-00309-00
13-09422-00
13-00365-00
13-01972-00
13-00395-00
13-00395-00
13-00369-00
13-01880-00
13-01890-00
13-00316-00

ECO
CUT-IN
54-09730
00007

VENDOR
USED ON
CODE

CODE

REF
FIG
PART NO. NO.

==-1---1

00014

oooos

00010

13-09417-00
13-0331 2-00
13-05114-00
13-00424-00
13-03045-00
13-04S56-00
13-0271 5-00
13-02329-00
13-0941 S-OO
13-01317-00

*_.....___

,._,,.

FIG

ECO
CUT-IN

&
ITEM
NO.

DESCRIPTION

DEC
PART NO.

54-09730
00007

VENDOR
USED ON
CODE

CODE

REF
FIG
PART NO. NO.

2A43
44
45
46
47
48
49
50
51
52
53
f

54
55
56
57

*Heat Sink
*Compound, Thermal Joint
*Insulator, Washer
*Screw, Phi Pan Hd No. 4-40 x 1/2
*Nut, Kep No. 4-40
*Terminal, Ring
*Connector, Mate-N-Lok (J1) (4 Pin)
*Contacts, Female
*Connector, Mate-N-Lok (12 Pin)
*Contacts, Female

\'Fuse(F11
*Fuse (F1) 5 AMP AGC (Deleted)
_*Fuse ( F 1) 5 AMP Rectifier
*Fuse, (F2) Pico 1 /4A
*Transistor (01) MJ3000 (Added - Replaces
Item 18)
*Screw, Phi. Pan Hd No. 6-32 x 7/16
*Nut, Kep No. 6-32

12-05817-00
90-08268-00
90-06721-00
90-06013-01
90-06557-00
90-07930-00
12-09350-04
12-09456-00
12-09350-12
12-093 79-00
90-07221-00
90-07221 -00
12-13237-02
12-1 0929-04
1 5-11349-00
90-06023-01
90-08185-00

00015
00008

00012

(

1--DEC

9/10

IPB·H742