(4) If all SIGNS-EXIT LOCATION and SIGNS-EXIT MARKING related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:

 - replace the POWER SUPPLY UNIT-EMERGENCY (10WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring between the: POWER SUPPLY UNIT-EMERGENCY (10WL) connector A/<F and the Relay (8WL) connector A/2 (Ref. ASM 33-51/01) and (Ref. ASM 33-51/01).

 (5) If all lights and signs related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:

 - replace the POWER SUPPLY UNIT-EMERGENCY (10WL) (Ref. AMM TASK 33-
51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001). R
R **ON A/C 159-199, 210-228,
 B. If the test gives the maintenance message EPSU INT LOAD FWD L, do the operational test of the emergency cabin lights and signs (Ref. AMM TASK 33-51-00-710-004).
 NOTE : The time taken to do this test must not be more than 1 minute to
____ prevent discharge of the emergency lighting batteries.
 (1) If one or more lamps of the LIGHTS-EMERGENCY, CABIN related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:
 - replace the lamp(s).
 (a) If the fault continues:
 - do a check for approx. 6 VDC at the related LIGHT-EMERGENCY, CABIN (Ref. ASM 33-51/01).
 1 If there are approx. 6 VDC:
_
 - replace the related LIGHT-EMERGENCY, CABIN (Ref. AMM TASK 33-51-11-000-001) and (Ref. AMM TASK 33-51-11-400-001).
 2 If there are no 6 VDC:
_
 - do a check and repair the wiring between the: POWER SUPPLY UNIT-EMERGENCY (10WL) connector A/E or G and the related LIGHT-EMERGENCY, CABIN, related LIGHT-EMERGENCY, CABIN and GND (Ref. ASM 33-51/01).
 (2) If all LIGHTS-EMERGENCY, CABIN related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:
 - replace the POWER SUPPLY UNIT-EMERGENCY (10WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).
 「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 222
 201-228, May 01/05 CES

 (3) If one or more lamps of the SEAT/WALL-MOUNTED EMERGENCY LIGHTS or SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHTS or EXIT MARKERS related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:
 - replace the lamp(s).
 (a) If the fault continues:
 - do a check for approx. 6 VDC at the related SEAT/WALL-MOUNTED EMERGENCY LIGHT or SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHTS or EXIT MARKER (Ref. ASM 33-51/04).
 1 If there are approx. 6 VDC:
_
 - replace the related SEAT/WALL-MOUNTED EMERGENCY LIGHT (Ref. AMM TASK 33-51-19-000-003) and (Ref. AMM TASK 33-51-19-400-003) or SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHT (Ref. AMM TASK 33-51-18-000-001) and (Ref. AMM TASK 33-51-18-400-001) or EXIT MARKER (Ref. AMM TASK 33-51-13-000-001) and (Ref. AMM TASK 33-51-13-400-001).
 2 If there are no 6 VDC:
_
 - do a check and repair the wiring between the: POWER SUPPLY UNIT-EMERGENCY (10WL) connector A/<B or <J and the related SEAT/WALL-MOUNTED EMERGENCY LIGHT or SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHT or EXIT MARKER, related SEAT/WALL-MOUNTED EMERGENCY LIGHT or SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHT or EXIT MARKER and GND (Ref. ASM 33-51/04).
 (4) If all SEAT/WALL-MOUNTED EMERGENCY LIGHTS and SEAT/WALL-MOUNTED EMERGENCY-EXIT-LOCATION LIGHTS and EXIT MARKERS related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:

 - replace the POWER SUPPLY UNIT-EMERGENCY (10WL) (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001).

 (5) If one or more lamps of the SIGNS-EXIT LOCATION or SIGNS-EXIT MARKING related to the POWER SUPPLY UNIT-EMERGENCY (10WL) do not come on:

 - replace the lamp(s).
 (a) If the fault continues:
 - do a check for approx. 6 VDC at the related SIGN-EXIT LOCATION or SIGN-EXIT MARKING (Ref. ASM 33-51/01).
 1 If there are approx. 6 VDC:
_
 - replace the related SIGN-EXIT LOCATION (Ref. AMM TASK 33-51-17-000-001) and (Ref. AMM TASK 33-51-17-400-001) or SIGN-EXIT MARKING (Ref. AMM TASK 33-51-16-000-001) and (Ref. AMM TASK 33-51-16-400-001).
 2 If there are no 6 VDC:
_
 - do a check and repair the wiring between the: POWER SUPPLY UNIT-EMERGENCY (10WL) connector A/N or R and the related SIGN-EXIT LOCATION or SIGN-EXIT MARKING,
 「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 : 159-199, 210-228, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page 223
　
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