Power Supply



Power Supply

NOTE: Verify that the voltage-select switch (if applicable) is set for the correct voltage.

If the power-on indicator is not on, and if the power-supply fan is not running, check the power cord for proper installation and continuity.

If the power cord is OK, either the power supply is defective or a defective device is causing the power supply to shut off. Check the power supply voltages.

If the voltages are incorrect, replace the power supply. If the voltages are correct, and the Symptom-to-FRU index does not solve the problem, go to Undetermined Problems on page 183 in your Hardware Maintenance Manual.

P1
 

-Lead Pin +Lead Pin Vdc Minimum Vdc Maximum
5, 6
5, 6
5, 6
5, 6
1
2
3
4
Power Good
+4.8V
+11.52V
-10.8V
+5.25V
+12.60V
-13.2V


P2
 

-Lead Pin +Lead Pin Vdc Minimum Vdc Maximum
1, 2
1, 2
1, 2
1, 2
3
4
5
6
-4.5V
+4.8V
+4.8V
+4.8V
-5.5V
+5.25V
+5.25V
+5.25V


P3
 

-Lead Pin +Lead Pin Vdc Minimum Vdc Maximum
4, 5, 6 1, 2, 3 +4.8V +5.25V


P4 and P6
 

-Lead Pin +Lead Pin Vdc Minimum Vdc Maximum
2, 3
2, 3
1
4
+4.8V
+11.52V
+5.25V
+12.6V


P5, P7, and P8
 

-Lead Pin +Lead Pin Vdc Minimum Vdc Maximum
2, 3
2, 3
1
4
+11.52V
+4.8V
+12.6V
+5.25V


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