Power Supply Voltages / Fan - IBM PS/2 70 Hardware Maintenance Service

5.0 Power Supply Voltages / Fan

Power-off the system.
connector facing up. Power-on the power supply and check for the voltages
listed below. If the voltages are not correct, check the power cord for
continuity. If the power cord is good, replace the power supply.
+------------------------------------------------------------------------+
¦ V dc ¦
¦ Minimum ¦
+-----------------+------------------+-----------------+-----------------¦
¦ -9.0 ¦
¦ +9.0 ¦
¦ +3.7 ¦
+-----------------+------------------+-----------------+-----------------¦
¦ ¦
+------------------------------------------------------------------------+
PICTURE 2
IBM PS/2 Model 70 HMS
Power Supply Voltages / Fan
Remove the power supply and place it with the
V dc ¦ Ground (-) ¦
Maximum ¦
-15.0 ¦
+15.0 ¦
+6.2 ¦
¦
¦ Copyright IBM Corp. 1991
5.0 - 1
Positive (+) ¦
Pin ¦ Pin
2 ¦ 1
2 ¦ 3
2 ¦ 15
¦
¦
¦
¦
¦
¦