- do a check and repair the wiring from the power supply relay (25LS) pin A/B3 to the first terminal block (Ref. ASM 33-35/01).
(b) If there is no voltage:
- do a check and repair the wiring from the power supply relay (25LS) pin A/B2 to the first terminal block (Ref. ASM 33-35/01).
B. Do the test given in Para. 3.
「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 ∞∞33-35-00∞∞∞∞∞∞∞∞∞∞Page 208
Feb 01/98 CES
TASK 33-35-00-810-806
Failure of the Avionics Compartment Aft Dome Light
1. Possible Causes
_______________
- RELAY-PWR SPLY, AVIONICS COMPT AFT L LT CTL (24LS)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
IPC 333508 AMM 33-35-00-720-001 Functional Test of the Avionics-Compartment Lighting ASM 33-35/01
3. Fault Confirmation
__________________
A. Test Do the functional test of the equipment compartment lighting (Ref. AMM TASK 33-35-00-720-001).
4. Fault Isolation
_______________
A. If during the functional test when you push the avionics-compartment light pushbutton-switch, the aft dome light in the avionics compartment does not operate correctly:
- remove the RELAY-PWR SPLY, AVIONICS COMPT AFT L LT CTL (24LS) (Ref. IPC 333508).
(1) If the fault continues:
- do a check for a voltage at pin A/B2 of the power supply relay (24LS).
(a) If there is a voltage:
- do a check and repair the wiring from the power supply relay (24LS) pin A/B3 to the first terminal block (Ref. ASM 33-35/01).
(b) If there is no voltage:
- do a check and repair the wiring from the power supply relay (24LS) pin A/B2 to the first terminal block (Ref. ASM 33-35/01).
B. Do the test given in Para. 3.
「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 ∞∞33-35-00∞∞∞∞∞∞∞∞∞∞Page 209
Feb 01/98 CES
WHEEL WELL LIGHTING - FAULT ISOLATION PROCEDURES
________________________________________________
TASK 33-37-00-810-801
Wheel Well Lights - One or Two Wheel Well Lights do not come on
1. Possible Causes
_______________
- lamp
- wiring
- CB 2LL
- WHEEL WELL LIGHT (7LL)
- WHEEL WELL LIGHT (8LL)
- SWITCH (12LL)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 33-37-00-710-001 Operational Test of the Wheel Well Lighting
AMM 33-37-11-000-001 Removal of the MLG Dome Light
AMM 33-37-11-400-001 Installation of the MLG Dome Light
R ASM 33-37/01
3. Fault Confirmation
__________________
A. Do the operational test of the wheel well lighting (Ref. AMM TASK 33-37-00-710-001).
4. Fault Isolation
_______________
A. If the operational test confirms the fault in one light:
- replace the lamp.
(1) If the fault continues:
- do a check for 28 VDC at the related WHEEL WELL LIGHT pin 1 (Ref. ASM 33-37/01).
(a) If there is approx. 28 VDC:
- replace the related WHEEL WELL LIGHT (Ref. AMM TASK 33-37-11-000-001) and (Ref. AMM TASK 33-37-11-400-001).
(b) If there is no 28 VDC:
- do a check of the SWITCH (12LL) and replace it if necessary.
「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 ∞∞33-37-00∞∞∞∞∞∞∞∞∞∞Page 201
Nov 01/04 CES (2) If the fault continues:
- do a check and repair the wiring between: SWITCH (12LL) pin 2 and CB 2LL SWITCH (12LL) pin 1 and the related WHEEL WELL LIGHT pin 1 GND and the related WHEEL WELL LIGHT pin 2 (Ref. ASM 33-37/01).
B. If the operational test confirms the fault in two lights:
- replace the two lamps.
(1) If the fault continues:
- do a check for 28 VDC at the two WHEEL WELL LIGHTS pin 1 (Ref. ASM 33-37/01). 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(57)
