IBM 3274 51C Maintenance Information page 160

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- - - - - - - ,
Sockets
A-V
L6D02
1:
A1-Y3
002
~D13
+5V 002- 013
Power Supply
No.1 (010'
I
L __ _
+5, +8.5, +12, -5, DC Rtn, paR
+5, +8.5, +24, -5, DC Rtn
+5,+24,
-5
Sockets
A-G
A-H (Note 1)
~
B02
I
B13
-,
I
I
I
I
Board Power Distribution
Single Power Supply System
+5V
t
lV6A04
U6D02
V6 B04
P6E04
S6 A04
I
R6 E04
I
I
I
I
I
I
I
I
I
L ____ --,
------1--,
I
I
L __
Board Distribution
Dual Power Supply System
Sockets
H-V
J-V (Note 1)
I
,
I
I
I
I
I
Operator Panel Card
P2-A02
Power On
Ind
31SD File
002+-+007
I
008
~D13
5V
L6D02
+
P2-Al1
o-----------~----------~U6D02
+5
Power Supply
No.2 (01 E)
DR/REC No. 28
+5, +8.5, +24, -5,
-B.5, DC Rtn
+5V
+5, +8.5, -5, -8.5, DC Rtn, paR
+5, +8.5, -5
Line
Plate
(WTC)
Figure B-4. Power Supply Distribution, Flow Diagram
8-6
P6E04
V6A04
V6B04
S6 A04
R6E04
Notes:
1. Card sockets for Model52C (Kanji).
2. See Figures
8-1, 8-2,
and
8-3
for detailed
power logic.
3. See Figure D.-to for detailed operator panel
log/c.
~-
"
........

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