R **ON A/C 106-149, 301-399, 401-499,
B. If the fault continues:
- replace the related loudspeakers (Ref. AMM TASK 23-73-51-000-001) and (Ref. AMM TASK 23-73-51-400-002).
(1) If the fault continues:
For a DEU-A connected Loudspeaker:
- replace the related DEU-A (200RHxx) (Ref. AMM TASK 23-73-46-000-001) and (Ref. AMM TASK 23-73-46-400-001).
(a) If the fault continues:
- do a check and repair the wiring between the related: DEU-A 200RHxx connector with the signal name LS Hi and the related loudspeaker, DEU-A 200RHxx connector with the signal name LS Lo and the related loudspeaker, (Ref. ASM 23-73/13), (Ref. ASM 23-73/14), (Ref. ASM 23-73/15) and (Ref. ASM 23-73/16).
(2) For a PISA connected loudspeaker:
- replace the related PISA 602RHxx (Ref. AMM TASK 23-73-41-000-001) and (Ref. AMM TASK 23-73-41-400-001).
(a) If the fault continues:
- do a check and repair the wiring between the related: PISA 602RHxx connector with the signal name AUDIO_P and the related loudspeaker, PISA 602RHxx connector with the signal name AUDIO_N and the related loudspeaker,
**ON A/C ALL
C. Do the test given in 3.A.
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
TASK 23-73-00-810-873
Sign - Info Sign at one PSIU does not come on
1. Possible Causes
_______________
- lamps
- LIGHT PNL
- DEU-A
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-73-00-740-005 BITE Test of the Cabin Intercommunication Data System
(CIDS) through the CFDS 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 23-73-63-000-001 Removal of the No Smoking/Fasten Seat Belt (NS/FSB) Signs in the PSIU and the C/B panels 2000VU and 2001VU.
AMM 23-73-63-400-001 Installation of the No Smoking/Fasten Seat Belt (NS/FSB) Signs in the PSIU and the C/B panels 2000VU and 2001VU.
ASM 23-73/13
ASM 23-73/14
ASM 23-73/15
ASM 23-73/16
3. Fault Confirmation
__________________
A. Test
(1) Do the CIDS BITE test through the CFDS (Ref. AMM TASK 23-73-00-740-005).
NOTE : An erroneous class 3 fault message will be recorded for each
____ LED info sign (without bulbs), if the test of the related signs is not deactivated in the CAM.
(2) on the cockpit overhead panel 25VU (SIGNS):
- set the NO SMOKING (190RH) switch to ON,
- set the FASTEN SEAT BELT (191RH) switch to ON.
「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, 101-105, 151-199, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page 265
201-299, Aug 01/05 CES
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 related NS/FSB info signs do not come on:
- do a check for 28 VDC at the related LIGHT PNL pins 1 and 3 (Ref. ASM 23-73/13) (Ref. ASM 23-73/14), (Ref. ASM 23-73/15) and (Ref. ASM 23-73/16).
(1) If there is approx. 28 VDC and the related NS/FSB sign has lamps:
- replace the related lamps.
(a) If the fault continues:
- replace the LIGHT PNL (Ref. AMM TASK 23-73-63-000-001) and (Ref. AMM TASK 23-73-63-400-001).
(2) If there is no 28 VDC:
- replace the related DEU-A (Ref. AMM TASK 23-73-46-000-001) and (Ref. AMM TASK 23-73-46-400-001).
(a) If the fault continues:
- do a check and repair the wiring between the related: LIGHT PNL pin 1 and DEU-A connector C/22,C/24 or C/26, LIGHT PNL pin 2 and DEU-A connector C/18,C/19 or C/20, LIGHT PNL pin 3 and DEU-A connector C/21,C/23 or C/25 (Ref. ASM 23-73/13) (Ref. ASM 23-73/14), (Ref. ASM 23-73/15) and (Ref. ASM 23-73/16).
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 COMMUNICATIONS 通讯2(59)
