(b) If there is no 28 VDC:
- do a check for 28 VDC at the:
- RELAY CTL (3811GX) connector X1 (Ref. ASM 29-23/01).
1 If there is 28 VDC:
_
- replace the RELAY CTL (3811GX).
a If the fault continues:
_
- do a check and repair the wiring between the RELAY CTL (3811GX) connector B2 and the C/B (1801GL) (Ref. ASM 29-23/01).
2 If there is no 28 VDC:
_
- do a check and repair the wiring of the cargo compartment door operation system.
R **ON A/C 059-099, 102-149, 151-199, 201-299, 301-399, 401-499,
A. If the PTU runs during the operation of the cargo-compartment door:
NOTE : Make sure that a second person operates one cargo-compartment door
____ during all checks for 28 VDC in the subsequent procedure.
- do a check for 28 VDC between:
「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 ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 221
Aug 01/05 CES the VALVEBLOCK, PTU (3112GL) connector A/A and the connector A/B (Ref. ASM 29-23/01).
(1) If there is 28 VDC:
- replace the MANIFOLD, PTU (3015GM) (Ref. AMM TASK 29-13-15-000-001) and (Ref. AMM TASK 29-13-15-400-001).
(2) If there is no 28 VDC:
- do a check for 28 VDC at the:
- RELAY CTL (3811GX) connector B1 (Ref. ASM 29-23/01).
(a) If there is 28 VDC:
- do a check and repair the wiring between the RELAY CTL (3811GX) connector B1 and the VALVEBLOCK, PTU (3112GL) connector A/B (Ref. ASM 29-23/01).
(b) If there is no 28 VDC:
- do a check for 28 VDC at the:
- RELAY CTL (3811GX) connector X1 (Ref. ASM 29-23/01).
1 If there is 28 VDC:
_
- replace the RELAY CTL (3811GX).
a If the fault continues:
_
- do a check and repair the wiring between the RELAY CTL (3811GX) connector B2 and the C/B (1801GL) (Ref. ASM 29-23/01).
2 If there is no 28 VDC:
_
- do a check and repair the wiring of the cargo compartment door operation system.
**ON A/C ALL
5. Close-up________
A. Do the fault confirmation procedure as given in Para. 3. to make sure that the operation is correct.
「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 ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 222
May 01/04R
CES
TASK 29-23-00-810-808
FAULT Light of the PTU P/BSW is ON
1. Possible Causes
_______________
- BOARD-ANN LT TEST & INTFC (20LP)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 33-14-00-710-001 Operational Test of the Annunciator Light Test System in the Cockpit AMM 33-14-33-000-001 Removal of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 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, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) ASM 33-14/22
3. Fault Confirmation
__________________
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead panel 40VU, look for the FAULT light of the PTU P/BSW.
4. Fault Isolation
_______________
A. If the Fault Confirmation gives:
- the PTU P/BSW FAULT on panel 40VU:
- 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).
「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 ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 223
May 01/05 CES
INTENTIONALLY BLANK
「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 ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 224
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