- C/B-ELEC/EXT PWR/LT CTL/AVAIL (4XG)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 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: - on the panel 108VU: the EXT PWR/NOT IN USE indicator light
comes on and the EXT PWR/AVAIL caution light stays off. - on the panel 35VU: the AVAIL legend of the EXT PWR pushbutton switch stays off.
「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 223
201-299, 301-399, Aug 01/05 CES
4. Fault Isolation
_______________
A. If the test confirms the fault:
- on the circuit breaker panel 122VU, do a check of the status of the circuit breaker (4XG).
(1) If the circuit breaker is closed:
- do a check of the wiring between the pin 2 of the circuit breaker (4XG) and the first terminal block (Ref. ASM 24-41/01).
(a) If there is no continuity:
- repair the above wiring.
(b) If there is continuity:
- replace the C/B-ELEC/EXT PWR/LT CTL/AVAIL (4XG).
(2) If the circuit breaker is open:
- close it.
(a) If the circuit breaker trips:
- do a check for a short to ground of the wiring which gets electrical power from the circuit breaker (4XG) (Ref. ASM 24-41/01).
1_ If the wiring is not correct:
- repair it.
2_ If the wiring is correct:
- replace the C/B-ELEC/EXT PWR/LT CTL/AVAIL (4XG).
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 224
201-299, 301-399, Aug 01/05 CES
R **ON A/C ALL
TASK 24-40-00-810-811
The AVAIL Legend of the EXT PWR Pushbutton Switch Stays on when the Switch is Pushed
1. Possible Causes
_______________
- EPC (3XG)
- GLC-APU (3XS)
- EGIU-1 (22XU1) R - RELAY-EPC AUX CTL (5XG) R - GAPCU (24XG)
- RELAY-EPC AUX CTL (5XG)
- wiring
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 24-23-55-000-001 Removal of the APU GLC (3XS)
AMM 24-23-55-400-001 Installation of the APU GLC (3XS)
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)
ASM 24-23/02
ASM 24-41/01
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(91)
