(b) If there is no 28 VDC:
- do a check of the ON-OFF SWITCH 3LJ and replace it if necessary.
(2) If the fault continues:
- do a check and repair the wiring between: ON-OFF SWITCH 3LJ pin 2 and CB 1LJ, ON-OFF SWITCH 3LJ pin 1 and SERVICE AREA LIGHT 5LJ pin 1, ON-OFF SWITCH 3LJ pin 1 and SERVICE AREA LIGHT 4LJ pin 1, SERVICE AREA LIGHT 5LJ pin 2 and GND, SERVICE AREA LIGHT 4LJ pin 2 and GND (Ref. ASM 33-31/01).
C. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 33-31-00-810-802
Socket - No 28 VDC at the Maintenance Socket in Section 19
1. Possible Causes
_______________
- SOCKET
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ASM 33-31/01
3. Fault Confirmation
__________________
A. Measure the voltage at the maintenance socket with a voltmeter.
4. Fault Isolation
_______________
A. If there is no 28 VDC:
- replace the related SOCKET
(1) If the fault continues:
- do a check and repair the wiring between:
SOCKET 8LJ pin + and CB 1LJ,
SOCKET 8LJ pin N and GND,
SOCKET 10LJ pin + and CB 1LJ,
SOCKET 10LJ pin N and GND (Ref. ASM 33-31/01).
B. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 33-31-00-810-803
Service Area Lights - The Service Area Light in the APU Compartment does not come on
1. Possible Causes
_______________
- lamp
- SERVICE AREA LIGHT 6LJ
- ON-OFF SWITCH 11LJ
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 33-31-00-710-001 Operational Test of the Service Area Lighting AMM 33-31-11-000-001 Removal of the Service Area Light 6LJ AMM 33-31-11-400-001 Installation of the Service Area Light 6LJ ASM 33-31/01
3. Fault Confirmation
__________________
A. Do the operational test of the Service Area Lighting (Ref. AMM TASK 33-31-00-710-001).
4. Fault Isolation
_______________
A. If the operational test shows that the SERVICE AREA LIGHT 6LJ, in the APU compartment, does not come on:
- replace the lamp.
(1) If the fault continues:
- do a check for 28 VDC at the SERVICE AREA LIGHT 6LJ (Ref. ASM 33-31/01).
(a) If there is approx. 28 VDC:
- replace the SERVICE AREA LIGHT 6LJ (Ref. AMM TASK 33-31-11-000-001) and (Ref. AMM TASK 33-31-11-400-001).
(b) If there is no 28 VDC::
- do a check of the ON-OFF SWITCH 11LJ and replace it if necessary.
(2) If the fault continues:
- do a check and repair the wiring between: ON-OFF SWITCH 11LJ pin 2 and CB 2LJ, ON-OFF SWITCH 11LJ pin 1 and SERVICE AREA LIGHT 6LJ pin 1, SERVICE AREA LIGHT 6LJ pin 2 and GND (Ref. ASM 33-31/01).
B. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
AIR CONDITIONING DUCT AND ACCESSORY COMPARTMENT LIGHTING
________________________________________________________ FAULT ISOLATION PROCEDURES
__________________________
TASK 33-32-00-810-801
Socket - No 28 VDC at the Maintenance Socket of the Air Conditioning Compt.
1. Possible Causes
_______________
- MAINTENANCE SOCKET (2LK)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 33-32-00-720-001 Functional Test of the Maintenance Socket in the Air Conditioning Duct and Accessory Compartment (LK) ASM 33-32/01
3. Fault Confirmation
__________________
A. Do the functional test of the maintenance socket (Ref. AMM TASK 33-32-00-720-001).
4. Fault Isolation
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