(2) EPSU UNIT EMER L:
 - replace the POWER SUPPLY UNIT-EMERGENCY (11WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
 (a) If the fault continues:

 - check all connected signs and lights for a short-circuit and replace if necessary (Ref. ASM 33-51/02) and (Ref. ASM 33-51/04),

 - if you find one or more defective signs and lights, replace the POWER SUPPLY UNIT-EMERGENCY (11WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).

 (b) If the fault continues:

 - do a check for a short to ground and repair the wiring if necessary (Ref. ASM 33-51/02) and (Ref. ASM 33-51/04): from EPSU (11WL) pin E to the connector(s) of the related signs and lights, from EPSU (11WL) pin F to the connector(s) of the related signs and lights, from EPSU (11WL) pin G to the connector(s) of the related signs and lights, from EPSU (11WL) pin N to the connector(s) of the related signs and lights, from EPSU (11WL) pin R to the connector(s) of the related signs and lights, from EPSU (11WL) pin T to the connector(s) of the related signs and lights, from EPSU (11WL) pin -B to the connector(s) of the related signs and lights, from EPSU (11WL) pin -J to the connector(s) of the related signs and lights,

 - if you find a short to ground in the wiring, replace the POWER SUPPLY UNIT-EMERGENCY (11WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).

 (c) If the fault continues:

 - do a check and repair the wiring if necessary (Ref. ASM 33-51/02): from EPSU (11WL) pin -P to DEU-B (300RH4) pin B/17, from EPSU (11WL) pin X to DEU-B (300RH4) pin B/16, from EPSU (11WL) pin L to GND, from EPSU (11WL) pin M to GND, from EPSU (11WL) pin U to GND, from EPSU (11WL) pin -R to GND, from EPSU (11WL) pin -M to GND.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-105, 151-199, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page 203
 201-299, May 01/05 CES

 (3) EPSU UNIT EMER R:
 - replace the POWER SUPPLY UNIT-EMERGENCY (12WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
 (a) If the fault continues:

 - check all connected signs and lights for a short-circuit and replace if necessary (Ref. ASM 33-51/02) and (Ref. ASM 33-51/04),

 - if you find one or more defective signs and lights, replace the POWER SUPPLY UNIT-EMERGENCY (12WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).

 (b) If the fault continues:

 - do a check for a short to ground and repair the wiring if necessary (Ref. ASM 33-51/02) and (Ref. ASM 33-51/04): from EPSU (12WL) pin E to the connector(s) of the related signs and lights, from EPSU (12WL) pin F to the connector(s) of the related signs and lights, from EPSU (12WL) pin G to the connector(s) of the related signs and lights, from EPSU (12WL) pin N to the connector(s) of the related signs and lights, from EPSU (12WL) pin R to the connector(s) of the related signs and lights, from EPSU (12WL) pin T to the connector(s) of the related signs and lights, from EPSU (12WL) pin -B to the connector(s) of the related signs and lights, from EPSU (12WL) pin -J to the connector(s) of the related signs and lights,

 - if you find a short to ground in the wiring, replace the POWER SUPPLY UNIT-EMERGENCY (12WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).

 (c) If the fault continues:

 - do a check and repair the wiring if necessary (Ref. ASM 33-51/02): from EPSU (12WL) pin -P to DEU-B (300RH4) pin B/20, from EPSU (12WL) pin X to DEU-B (300RH4) pin B/19, from EPSU (12WL) pin L to GND, from EPSU (12WL) pin M to GND, from EPSU (12WL) pin U to GND, from EPSU (12WL) pin -R to GND, from EPSU (12WL) pin -M to GND.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-105, 151-199, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page 204
 201-299, May 01/05 CES

 (4) EPSU UNIT AFT L:
 - replace the POWER SUPPLY UNIT-EMERGENCY (13WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
 (a) If the fault continues:

 - check all connected signs and lights for a short-circuit and replace if necessary (Ref. ASM 33-51/02) and (Ref. ASM 33-51/04),

 - if you find one or more defective signs and lights, replace the POWER SUPPLY UNIT-EMERGENCY (13WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
　
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