「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page 292
May 01/05 CES
C. Do this test:
NOTE : Make sure that all cabin emergency lights have been tested and
____
operate correctly
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. In the cockpit, on the SIGNS panel 25VU:
- set the SW-SIGNS/EMER EXIT LT (4WL) switch to the ARM position.
2. On the circuit breaker panel 49VU: - open the circuit breakers 1WL
and 2WL.
4. Fault Isolation
_______________ In the cabin:
- not all cabin emergency lights comeon.
R **ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
A. Maintenance Action
NOTE : The combination of cabin emergency lights that do not come on
____ shows you the POWER SUPPLY UNIT-EMERGENCY or the Power Supply Unit (PSU) which you must replace.
(1) If all to one POWER SUPPLY UNIT-EMERGENCY terminal related cabin emergency lights do not come on (Ref. ASM 33-51/01):
- replace the related EPSU (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001),
(2) If all to one PSU terminal related cabin emergency lights do not come on (Ref. ASM 33-51/04):
- replace the related POWER SUPPLY UNIT (110WLx) (Ref. AMM TASK 33-51-39-000-001) and (Ref. AMM TASK 33-51-39-400-001),
R **ON A/C 106-149, 229-299,
R A. Maintenance Action
R NOTE : The combination of cabin emergency lights that do not come on
____ R shows you the POWER SUPPLY UNIT-EMERGENCY or the INVERTER which R you must replace.
「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 : ALL ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page 293
May 01/05 CES
(1) If all to one POWER SUPPLY UNIT-EMERGENCY terminal related cabin emergency lights do not come on:
- replace the related POWER SUPPLY UNIT-EMERGENCY (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001) (Ref. ASM 33-51/01).
(2) If all to one Inverter terminal related cabin emergency lights do not come on
- replace the related INVERTER (Ref. AMM TASK 33-51-37-000-001) and (Ref. AMM TASK 33-51-37-400-001) (Ref. ASM 33-51/04):
R **ON A/C 159-199, 210-228, 301-399, 401-499,
A. Maintenance Action
NOTE : The combination of cabin emergency lights that do not come on
____
shows you the EPSU which you must replace.
(1) If all to one POWER SUPPLY UNIT-EMERGENCY terminal related cabin emergency lights do not come on (Ref. ASM 33-51/01):
- replace the related POWER SUPPLY UNIT-EMERGENCY (Ref. AMM TASK 33-51-38-000-001) and (Ref. AMM TASK 33-51-38-400-001),
**ON A/C ALL
B. Do the test given in para. 3.
5. Close-up
________
A. De-energize the aircraft electrical circuits
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