- replace the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001) (2) the maintenance message DMC3(1WT3)/WRG: DMC3 BUS DATA TO ND FO

 - 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 FO ND DU (3WT2) (Ref. ASM 31-61/00)
 1 if the wiring is correct:
_

 - replace the ND-F/O (3WT2) (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 from the DMC's to the Upper ECAM DU
 1. Possible Causes
_______________
 - DMC-1 (1WT1)

 - DU-ECAM, UPPER (4WT1)

 - 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 DMC1(1WT1)/WRG: DMC1 BUS DATA TO EWD
 - replace the DMC-1 (1WT1) (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 DMC1 and the Upper ECAM DU (4WT1) (Ref. ASM 31-61/00)
 1 if the wiring is correct:
_

 - replace the DU-ECAM, UPPER (4WT1) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001)
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 401-499, ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page B283
 Aug 01/05 CES (2) the maintenance message DMC3(1WT3)/WRG: DMC3 BUS DATA TO EWD

 - 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 Upper ECAM DU (4WT1) (Ref. ASM 31-61/00)
 1 if the wiring is correct:
_

 - replace the DU-ECAM, UPPER (4WT1) (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 from the DMC's to the Lower ECAM DU
 1. Possible Causes
_______________
 - DMC-1 (1WT1)

 - DU-ECAM, LOWER (4WT2)

 - 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 DMC1(1WT1)/WRG: DMC1 BUS DATA TO SD
 - replace the DMC-1 (1WT1) (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 DMC1 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)
 「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 : 401-499, ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page B285
　
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