- the EMER EXIT LT OFF light 5WL is on. 1 If the fault continues:
_
- replace the EMER EXIT LT switch 4WL. 2 If the fault continues:
_
- check and repair the wiring between: EPSU 13WL pin -D and EMER EXIT LT switch 4WL pin 3C, EPSU 13WL pin A and EMER EXIT LT switch 4WL pin 3B, EPSU 13WL pin B and EMER EXIT LT switch 4WL pin 2B (Ref. ASM 33-51/01).
3 If the fault continues:
_
- make sure that the EMER pushbutton switch on the Flight Attendant Panel (FAP) 120RH operates correctly.
「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 : 106-149, 301-399, 401-499, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page A231
Aug 01/05 CES
4_ If the fault continues:
- check and repair the wiring between:
EPSU 13WL pin -I and DEU-B 300RH7 connector B pin 29,
EPSU 13WL pin -P and DEU-B 300RH7 connector B pin 31,
EPSU 13WL pin X and DEU-B 300RH7 connector B pin 30 (Ref.
ASM 33-51/01).
5_ If the fault continues:
- do the trouble shooting procedures for the FAP.
C. Do the test given in para. 3.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 33-51-00-810-834
Failure of EPSU 11WL
1. Possible Causes
_______________
- POWER SUPPLY UNIT-EMERGENCY (11WL)
- signs and lights
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 33-51-00-710-010 Operational Test of the Emergency Lights via MCDU AMM 33-51-38-000-001 Removal of the Emergency Power-Supply Unit (EPSU) AMM 33-51-38-400-001 Installation of the Emergency Power-Supply Unit
(EPSU)
ASM 33-51/02
ASM 33-51/04
3. Fault Confirmation
__________________
A. Do the operational test of the emergency lights via MCDU (Ref. AMM TASK 33-51-00-710-010).
4. Fault Isolation
_______________
A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
B. If the operational test gives the maintenance message:
EPSU(11WL)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).
(1) 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).
(2) 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,
「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 : 106-149, 301-399, 401-499, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page A233
Aug 01/05 CES
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 H to the connector(s) of the related signs and
lights,
from EPSU (11WL) pin J to the connector(s) of the related signs and
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320 Trouble Shooting Manual 排故手册 LIGHTS 灯光(129)
