B. If there is no CFDS maintenance message, but one light does not come on:
- replace the related FLUORESCENT TUBE (Ref. AMM TASK 33-21-11-000-001) and (Ref. AMM TASK 33-21-11-400-001).
(1) If the fault continues:
- do a check for 115 VAC at the related BALLAST UNIT connector A/C (Ref. ASM 33-21/01), (Ref. ASM 33-21/02) and (Ref. ASM 33-21/03).
(a) If there is approx. 115 VAC:
- replace the related BALLAST UNIT-LAMP (Ref. AMM TASK 33-21-11-000-001) and (Ref. AMM TASK 33-21-11-400-001).
(b) If there is no 115 VAC:
- do a check and repair the wiring if necessary between the related: BALLAST UNIT connector A/C and its CB, BALLAST UNIT connector A/A and GND, BALLAST UNIT connector A/B and GND (Ref. ASM 33-21/01), (Ref. ASM 33-21/02) and (Ref. ASM 33-21/03).
(2) If the fault continues:
- replace the related DEU-A (Ref. AMM TASK 23-73-46-000-001) and (Ref. AMM TASK 23-73-46-400-001).
(3) If the fault continues:
- do a check and repair the wiring between the related: BALLAST UNIT connector A/D and DEU-A connector B/1,B/4,B/9 or B/12, BALLAST UNIT connector A/E and DEU-A connector B/2,B/5,B/10 or B/13, BALLAST UNIT connector A/F and DEU-A connector B/3,B/6,B/11 or B/14 (Ref. ASM 33-21/01), (Ref. ASM 33-21/02) and (Ref. ASM 33-21/03).
C. Do the test as given in the Para. 3.A.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
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CES
TASK 33-21-00-810-802
Cabin Lights - Two thru Four Cabin Lights in Series at one Cabin Side do not come on
1. Possible Causes
_______________
- FLUORESCENT TUBE
- DEU-A
- BALLAST UNIT-LAMP
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-73-00-740-003 BITE Test of the Cabin Intercommunication Data System
(CIDS) through the PTP AMM 23-73-46-000-001 Removal of the Decoder/Encoder Unit (DEU) A 200RH AMM 23-73-46-400-001 Installation of the Decoder/Encoder Unit (DEU) A
200RH
AMM 33-21-00-710-001 Operational Test of the General Illumination
AMM 33-21-11-000-001 Removal of the Ballast Unit and Lampholder 1LG1
(3LG1) AMM 33-21-11-400-001 Installation of the Ballast Unit and Lampholder 1LG1 ASM 33-21/01 ASM 33-21/02 ASM 33-21/03
3. Fault Confirmation
__________________
A. Do the CIDS BITE test (Ref. AMM TASK 23-73-00-740-003)
B. Do the operational test of the general illumination (Ref. AMM TASK 33-21-00-710-001).
4. Fault Isolation
_______________
R
R A. If the test gives a maintenance message, do the trouble shooting R procedure related to the maintenance message.
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B. If there is no CFDS message but between 2 and 4 FLUORESCENT TUBES in series at one cabin side do not come on:
- change a FLUORESCENT TUBE
(1) If the FLUORESCENT TUBE comes on:
- replace all the FLUORESCENT TUBES
(2) If the fault continues:
- replace the related DEU-A (Ref. AMM TASK 23-73-46-000-001) and (Ref. AMM TASK 23-73-46-400-001).
(3) If the fault continues:
- do a check for 115 VAC at the related BALLAST UNIT connector A/C (Ref. ASM 33-21/01), (Ref. ASM 33-21/02) and (Ref. ASM 33-21/03).
(a) If there is approx. 115 VAC:
- replace the related BALLAST UNIT-LAMP (Ref. AMM TASK 33-21-11-000-001) and (Ref. AMM TASK 33-21-11-400-001). 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(36)
