B. Do this test to make sure that the system operates correctly.
(1) Do the test given in Para. 3. and make sure that: - on the panel 108VU, the EXT PWR/NOT IN USE indicator light and EXT PWR/AVAIL caution light come on.
- on the panel 35VU, the AVAIL legend of the EXT PWR pushbutton switch comes on.
(2) De-energize the aircraft electrical circuits from the external power (Ref. AMM TASK 24-41-00-862-002).
「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, 101-149, 151-199, ∞∞24-40-00∞∞∞∞∞∞∞∞∞∞Page 218
201-299, 301-399, Aug 01/05 CES
R **ON A/C ALL
TASK 24-40-00-810-809
The EXT PWR/NOT IN USE Indicator Light Stays off when the EXT PWR Energizes the Aircraft
1. Possible Causes
_______________
- IND LT-EXT PWR/NOT IN USE (8XG)
- CNTOR-AC GND SVCE SPLY (12XX)
- EPC (3XG)
- EGIU-1 (22XU1)
- P/BSW-ELEC/EXT PWR (10XG) R - GAPCU (24XG)
- wiring
- lamp
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-22-33-000-001 Removal of the EGIU-1(2) (22XU1, 22XU2)
AMM 24-22-33-400-002 Installation of the EGIU-1(2) (22XU1, 22XU2)
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power R AMM 24-41-34-000-001 Removal of the Ground Auxiliary Power Control Unit R (GAPCU) (24XG) R AMM 24-41-34-400-001 Installation of the Ground Auxiliary Power Control R Unit (GAPCU) (24XG)
AMM 24-41-55-000-001 Removal of the External Power Contactor (EPC)
AMM 24-41-55-400-001 Installation of the External Power Contactor (EPC)
AMM 24-42-55-000-001 Removal of the Contactors (12XX, 14XX)
AMM 24-42-55-400-001 Installation of the Contactors (12XX, 14XX)
ASM 24-41/01
3. Fault Confirmation
__________________
A. Test
(1) Energize the aircraft electrical circuits from the external power (Ref. AMM TASK 24-41-00-861-002)
NOTE : Energization of the aircraft is correct but, during the
____ procedure given at Para. 3.D., make sure that:
「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 ∞∞24-40-00∞∞∞∞∞∞∞∞∞∞Page 219
Aug 01/05 CES
- on the external power panel 108VU: the EXT PWR/NOT IN USE indicator light stays off and the EXT PWR/AVAIL caution light comes on
- on the ELEC panel 35VU: the AVAIL legend of the EXT PWR pushbutton switch comes on.
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test confirms the fault:
- on the external power panel 108VU, push the LIGHT TEST pushbutton switch (34LP) to do a test of the lights of the external power panel 108VU.
(1) If the EXT PWR/NOT IN USE indicator light comes on:
- do a check of the wiring between the pin 2 of the circuit breaker (6XG) and the pin 2 of the EXT PWR/NOT IN USE indicator light (8XG) (Ref. ASM 24-41/01).
(a) If there is no continuity:
- repair the wiring.
(b) If there is continuity:
- replace the IND LT-EXT PWR/NOT IN USE (8XG).
1 If the fault continues:
_
- replace the CNTOR-AC GND SVCE SPLY (12XX) (Ref. AMM TASK 24-42-55-000-001) and (Ref. AMM TASK 24-42-55-400-001).
2 If the fault continues:
_
- replace the EPC (3XG) (Ref. AMM TASK 24-41-55-000-001) and (Ref. AMM TASK 24-41-55-400-001).
3 If the fault continues:
_
- replace the EGIU-1 (22XU1) (Ref. AMM TASK 24-22-33-000-001) and (Ref. AMM TASK 24-22-33-400-002).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(89)
