TASK 33-14-00-810-805
Failure of the Annunciator-Light Test and Interface-Board (20LP)
1. Possible Causes
_______________
- BOARD-ANN LT TEST & INTFC (20LP)
- 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 21-51/01
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 P2 FAULT RELAY (20LP):
- replace the BOARD-ANN LT TEST & INTFC (20LP) (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 2 (57HH) and pin A/2 of the annunciator-light test and interface-board (20LP) (Ref. ASM 21-51/01).
B. Do the operational test of the cockpit and cabin temperature control with CFDS/MCDU (Ref. AMM TASK 21-63-00-710-004).
TASK 33-14-00-810-806
Failure of the Annunciator-Light Test and Interface-Board (3LP)
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 TRIM FAULT RELAY (3LP):
- 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/8A of the air-conditioning system controller 2 (57HH) and pin A/45 of the annunciator-light test and interface-board (3LP) (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).
GENERAL ILLUMINATION - FAULT ISOLATION PROCEDURES
_________________________________________________
TASK 33-21-00-810-801
Cabin Lights - One Cabin Light does not come on
1. Possible Causes
_______________
- FLUORESCENT TUBE
- BALLAST UNIT-LAMP
- wiring
- DEU-A
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
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