- do a check for continuity between pin A/1 and pin A/2 of the reading light rheostat (30LE) on the Captain side.
1_ If there is no continuity:
- replace the RHEOSTAT-READING LT (30LE) on the Captain side
(Ref. IPC 331208).
2 If there is continuity:
_
- do a check for 28VDC at pin A/1 of the reading light rheostat (30LE) (Ref. ASM 33-12/02).
a If there is no 28VDC:
_
- do a check and repair the wiring between the reading light rheostat (30LE) pin A/1 and the first terminal block (Ref. ASM 33-12/02).
b If there is 28VDC:
_
- do a check and repair the wiring between the supplementary reading light (29LE): . and the reading light rheostat (30LE) . and the ground terminal (Ref. ASM 33-12/02).
B. Do the test given in Para. 3.
TASK 33-12-00-810-814
Failure of the First-Officer Supplementary Reading-Light
1. Possible Causes
_______________
- LT-READING, SUPPLEMENTARY (29LE)
- RHEOSTAT-READING LT (30LE)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
IPC 331208 AMM 33-12-00-710-001 Operational Test of the General Illumination AMM 33-12-12-000-001 Removal of the Reading Light (25LE, 26LE, 29LE) AMM 33-12-12-400-001 Installation of the Reading Light (25LE, 26LE, 29LE) ASM 33-12/02
3. Fault Confirmation
__________________
A. Test Do the operational test of the general illumination (Ref. AMM TASK 33-12-00-710-001).
NOTE : Do this test for the instrument lighting, the supplementary
____ reading lights, the map table lights and the center pedestal light only.
4. Fault Isolation
_______________
A. If during the operational test, on the First Officer side:
(1) The reading light rheostat (30LE) is inoperative on the related supplementary reading light (29LE):
- replace the RHEOSTAT-READING LT (30LE) on the First Officer side (Ref. IPC 331208).
(2) The supplementary reading light (29LE) does not come on:
- remove the LT-READING, SUPPLEMENTARY (29LE) (Ref. AMM TASK 33-12-12-000-001)
- make sure that there is 28VDC at the lamp socket.
(a) If there is 28VDC:
- replace the defective lamp (Ref. AMM TASK 33-12-12-400-001).
「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 ∞∞33-12-00∞∞∞∞∞∞∞∞∞∞Page 215
Feb 01/98 CES (b) If there is no 28VDC:
- do a check for continuity between pin A/1 and pin A/2 of the reading light rheostat (30LE) on the First Officer side.
1_ If there is no continuity:
- replace the RHEOSTAT-READING LT (30LE) on the First Officer
side (Ref. IPC 331208).
2 If there is continuity:
_
- do a check for 28VDC at pin A/1 of the reading light rheostat (30LE) (Ref. ASM 33-12/02).
a If there is no 28VDC:
_
- do a check and repair the wiring between the reading light rheostat (30LE) pin A/1 and the first terminal block (Ref. ASM 33-12/02).
b If there is 28VDC:
_
- do a check and repair the wiring between the supplementary reading light (29LE): . and the reading light rheostat (30LE) . and the ground terminal (Ref. ASM 33-12/02).
B. Do the test given in Para. 3.
TASK 33-12-00-810-815
Failure of the Center Pedestal Light
1. Possible Causes
_______________
- LT-CENTER PEDESTAL (27LE)
- RHEOSTAT-FLOOD LT/PED (28LE)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
IPC 331208
AMM 33-12-00-710-001 Operational Test of the General Illumination
AMM 33-12-14-000-002 Removal of the Center Pedestal Light (27LE)
AMM 33-12-14-400-002 Installation of the Center Pedestal Light (27LE)
ASM 33-12/02
3. Fault Confirmation
__________________
A. Test Do the operational test of the general illumination (Ref. AMM TASK 33-12-00-710-001).
NOTE : Do this test for the instrument lighting, the supplementary
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