TASK 24-41-00-810-806
Failure of the RS422 Electrical Connection between the GPCU and the GCU 1
1. Possible Causes
_______________
- GPCU (1XG)
- GCU-1 (1XU1)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
AMM 24-41-00-740-002 Operational Test of the Ground power Control Unit
(GPCU) AMM 24-41-34-000-001 Removal of the Ground Power Control Unit (GPCU) (1XG) AMM 24-41-34-400-001 Installation of the Ground Power Control Unit (GPCU)
(1XG)
ASM 24-41/02
3. Fault Confirmation
__________________
A. Test Do the operational test of the GPCU, (Ref. AMM TASK 24-41-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message CHECK SERIAL LINK GPCU TO GCU
1:
- do a check of the wiring for short to ground or open circuit between respectively the GPCU pins A/13C, A/14C and the GCU 1 pins B/14C, B/14D (Ref. ASM 24-41/02).
(1) If the wiring is not correct:
- repair it.
(2) If the wiring is correct:
- replace the GPCU (1XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref. AMM TASK 24-41-34-400-001).
(3) If the fault continues:
- replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
B. Do the test given in Para. 3.
「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 : 001-049, 051-099, 101-149, 151-199, ∞∞24-41-00∞∞∞∞∞∞∞∞∞∞Page 209
201-299, 301-399, Aug 01/05 CES TASK 24-41-00-810-807
Failure of the RS422 Electrical Connection between the GPCU and the GCU 2
1. Possible Causes
_______________
- GPCU (1XG)
- GCU-2 (1XU2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
AMM 24-41-00-740-002 Operational Test of the Ground power Control Unit
(GPCU) AMM 24-41-34-000-001 Removal of the Ground Power Control Unit (GPCU) (1XG) AMM 24-41-34-400-001 Installation of the Ground Power Control Unit (GPCU)
(1XG)
ASM 24-41/02
3. Fault Confirmation
__________________
A. Test Do the operational test of the GPCU (Ref. AMM TASK 24-41-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message CHECK SERIAL LINK GPCU TO GCU
2:
- do a check of the wiring for short to ground or open circuit between respectively the GPCU pins A/12D, A/13D and the GCU 2 pins B/14C, B/14D (Ref. ASM 24-41/02).
(1) If the wiring is not correct:
- repair it.
(2) If the wiring is correct:
- replace the GPCU (1XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref. AMM TASK 24-41-34-400-001).
(3) If the fault continues:
- replace the GCU-2 (1XU2) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
B. Do the test given in Para. 3.
「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 : 001-049, 051-099, 101-149, 151-199, ∞∞24-41-00∞∞∞∞∞∞∞∞∞∞Page 210
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 電源 3(96)
