「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 ∞∞33-14-00∞∞∞∞∞∞∞∞∞∞Page 211
Feb 01/98 CES
(1) If there is 115VAC
- replace the related XFMR-ESS (31LP) or XFMR-ESS (35LP) or XFMR-SYS2 (36LP) or XFMR-SYS 1 (37LP) (Ref. AMM TASK 33-14-51-000-001) and (Ref. AMM TASK 33-14-51-400-001).
(2) If there is no 115VAC
- make sure that there is 28VDC between pins A/X1 and A/X2 of the related relay (38LP) or (39LP) or (41LP) or (42LP) (Ref. ASM 33-14/03).
(a) If there is 28VDC
- replace the related RELAY-BRT/DIM, SYS 1 CTL (38LP) or RELAY-BRT/DIM, SYS 2 CTL (39LP) or RELAY-BRT/DIM, ESS CTL (41LP) or RELAY-BRT/DIM, ESS CTL (42LP) (Ref. IPC 331408).
1 If the fault continues
_
- do a check and repair the wiring from the related relay, pin A/A1 to the related transformer pin A/B (Ref. ASM 33-14/03).
2 If the fault continues:
_
- do a check for 28VDC between pins A/X1 and A/X2 of the relay (40LP).
a If there is 28VDC:
_
- replace the RELAY-ESS/EMERGENCY (40LP). . If the fault continues:
- do a check and repair the wiring between pin A/X1 and pin A/A1 of the relay (40LP).
b If there is no 28VDC:
_
- do a check and repair the defective wiring of the relay (40LP) between: . pin A/X2 and the ground terminal . pin A/X1 and the first terminal block.
(b) If there is no 28VDC
- do a check and repair the defective wiring from the relay . pin A/X2 to the ground terminal . pin A/X1 to the first terminal block (Ref. ASM 33-14/03).
B. If the dimming is inoperative for all annunicator lights
- make sure that the INT LT/ANN LT switch (33LP) is in the DIM position
- make sure that there is 28VDC at pin 3A of the INT LT/ANN LT switch (33LP).
(1) If there is 28VDC
- do a check and repair the wiring from the pin 3A of the INT LT/ANN LT switch (33LP) to the first terminal block (Ref. ASM 33-14/03).
「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 ∞∞33-14-00∞∞∞∞∞∞∞∞∞∞Page 212
Feb 01/98 CES (2) If there is no 28VDC
- replace the SW-INT LT/ANN LT (33LP) (Ref. IPC 331408).
(a) If the fault continues
- do a check and repair the wiring from pin 1A of the INT LT/ANN LT switch (33LP) to the first terminal block (Ref. ASM 33-14/02).
C. Do the test given in Para. 3.
R **ON A/C 106-149, 303-399, 401-499,
TASK 33-14-00-810-804
Failure of the Annunciator-Light Test and Interface-Board (8LP)
1. Possible Causes
_______________
- BOARD-ANN LT TEST & INTFC (8LP)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 21-63-00-710-004 Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU
AMM 33-14-33-000-001 Removal of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP)
AMM 33-14-33-400-001 Installation of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP)
ASM 21-51/02
3. Fault Confirmation
__________________
A. Do the operational test of the cockpit and cabin temperature control with CFDS/MCDU (Ref. AMM TASK 21-63-00-710-004).
4. Fault Isolation
_______________
A. If the test gives the maintenance message P1 FAULT RELAY (8LP):
- replace the BOARD-ANN LT TEST & INTFC (8LP) (Ref. AMM TASK 33-14-33-000-001) and (Ref. AMM TASK 33-14-33-400-001).
(1) If the fault continues:
- do a check and repair the wiring between pin AB/8B of the air-conditioning system controller 1 (47HH) and pin A/27 of the annunciator-light test and interface-board (8LP) (Ref. ASM 21-51/02).
B. Do the operational test of the cockpit and cabin temperature control with CFDS/MCDU (Ref. AMM TASK 21-63-00-710-004).
「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, 303-399, 401-499, ∞∞33-14-00∞∞∞∞∞∞∞∞∞∞Page 214
Aug 01/05 CES
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本文链接地址：A320 Trouble Shooting Manual 排故手册 LIGHTS 灯光(34)
