Lucent Technologies Lineage 2000 ECS-12U - Figure 7-2.2: 113 B Control Unit Has Lost Power

Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
7 - 4 Troubleshooting Issue 3 July 1998
Figure 7-2.2: 113B Control Unit Has Lost Power (continued)
B. 113B CONTROL UNIT HAS LOST POWER SHEET 2 OF 2
FROM STEP 6, SHEET 1
8. CHECK FOR BLOWN FUSES ON FAB
9. CHECK FOR VOLTAGE ON PLANT BUS BARS
10. CHECK SEATING OF CIRCUIT PACK
IN BACKPLANE CONNECTOR P101
11. CHECK SEATING OF RIBBON CABLE
IN BACKPLANE CONNECTOR P601
12. CHECK SEATING OF RIBBON CABLE
IN CONNECTOR P502 ON FAB
13. CHECK SEATING OF POWER CABLE ASSEMBLIES
IN CONNECTORS P504 AND P506 ON FAB
14. ARE ALL VOLTAGES
PRESENT?
32. CHECK FOR BROKEN WIRES OR LOOSE CONNECTIONS FROM
J504 AND J506 TO BUS BARS AND REPAIR OR REPLACE AS NEEDED
33. RECONNECT ALL CABLES, CLOSE FRONT PANELS OF
CONTROLLER AND DC DISTRIBUTION
15. DEFECTIVE 113B
CONTROL UNIT.
REPLACE.
YES
NO