- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001)
(a) If the fault continues:
- check the wiring between the DMC3 and the Lower ECAM DU (4WT2) (Ref. ASM 31-61/00)
1 if the wiring is correct:
_
- replace the DU-ECAM, LOWER (4WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
B. Do the test given in Para. 3.
Failure of the A629 BUS detected by the FO ND DU
1. Possible Causes
_______________
- ND-F/O (3WT2)
- DMC-2 (1WT2)
- DMC-3 (1WT3)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-720-002 Operational Test of the DMC/DU data bus AMM 31-63-22-000-001 Removal of the Display Unit (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) AMM 31-63-22-400-001 Installation of the Display Unit
(2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3) AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3) ASM 31-61/00
3. Fault Confirmation
__________________
A. Test Do the operational test of the DMC/DU Data Bus (Ref. AMM TASK 31-60-00-720-002)
4. Fault Isolation
_______________
A. If the test gives:
(1) the maintenance message DU ND FO(3WT2)/WRG: DMC2 BUS DATA TO NDFO
- replace the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
(a) If the fault continues:
- check the wiring between the DMC2 and the FO ND DU (3WT2) (Ref. ASM 31-61/00)
1 if the wiring is correct:
_
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001)
(2) the maintenance message DU ND FO(3WT2)/WRG: DMC3 BUS DATA TO NDFO
- replace the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
(a) If the fault continues:
- check the wiring between the DMC3 and the FO ND DU (3WT2) (Ref. ASM 31-61/00)
1 if the wiring is correct:
_
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001)
B. Do the test given in Para. 3.
Failure of the A629 BUS detected by the Upper ECAM DU
1. Possible Causes
_______________
- DU-ECAM, UPPER (4WT1)
- DMC-1 (1WT1)
- DMC-3 (1WT3)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-720-002 Operational Test of the DMC/DU data bus AMM 31-63-22-000-001 Removal of the Display Unit (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) AMM 31-63-22-400-001 Installation of the Display Unit
(2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3) AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3) ASM 31-61/00
3. Fault Confirmation
__________________
A. Test Do the operational test of the DMC/DU Data Bus (Ref. AMM TASK 31-60-00-720-002)
4. Fault Isolation
_______________
A. If the test gives:
(1) the maintenance message DU EWD (4WT1)/WRG: DMC1 BUS DATA TO EWD
- replace the DU-ECAM, UPPER (4WT1) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
(a) If the fault continues:
- check the wiring between the DMC1 and the Upper ECAM DU (4WT1) (Ref. ASM 31-61/00)
1 if the wiring is correct:
_
- replace the DMC-1 (1WT1) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001)
(2) the maintenance message DU EWD (4WT1)/WRG: DMC3 BUS DATA TO EWD
- replace the DU-ECAM, UPPER (4WT1) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
(a) If the fault continues:
- check the wiring between the DMC3 and the Upper ECAM DU (4WT1) (Ref. ASM 31-61/00)
1 if the wiring is correct:
_
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001)
B. Do the test given in Para. 3.
Failure of the A629 BUS detected by the Lower ECAM DU
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 3(81)
