IBM 7785 Hardware Maintenance page 147

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MAP 0020
Table 11
.
Power Supply Voltages
(V dc)
(V dc)
Ground
Minimum
Maximum
P
in
-9.0
-15.0
2
+9.0
+15.0
2
+3.7
+6.2
2
+2.4
+5.25
2
ARE THE VOL T AGES CORRECT?
Ves
No
~
-
Replace the power
supply.
Go to Step 050 on page
134.
- Turn off the system.
Power
P
in
9
3
12
-
Plug the power supply connector into the system board.
- Turn on the system.
-
Check both 4-pin power supply connectors for the following volt-
ages
.
130
Service Bay System

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