- check the wiring between the related LRU and the first terminal block (Ref. ASM 31-68/01)

 - install the DMC-1 (1WT1),

 - install the DMC-2 (1WT2)

 - install the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-400-001)

 - install the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-400-001)

 - install the panel 500VU

 (2) If there is no variation of luminosity on FO PFD DU with the FO PFD potentiometer (7WT2) on the brightness position:
 - remove the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001)

 - check the wiring between the FO PFD DU (2WT2) and the FO PFD potentiometer (7WT2) (Ref. ASM 31-68/01)

 - install the FO PFD DU (2WT2) (Ref. AMM TASK 31-63-22-400-001)

 5. Close-up
________
 A. Do the test given in Para. 3.A.

 Loss of the FO ND DU or no Variation of Luminosity on the FO ND DU
 1. Possible Causes
_______________
 - ND-F/O (3WT2)

 - POT-ND, F/O (8WT2)

 - DMC-1 (1WT1)

 - DMC-2 (1WT2)

 - DMC-3 (1WT3)

 - panel 500VU

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-004 EIS System Test
 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 31-68/01

 3. Fault Confirmation
__________________
 A. Test
 Do the EIS system test (Ref. AMM TASK 31-60-00-740-004).

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message DU ND FO(3WT2)/ND FO POT(8WT2):
 (1) If there is no FO ND image:
 - on the panel 500VU, make sure that the FO ND potentiometer (8WT2) is in the center position
 - 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:
 - remove the panel 500VU
 - on the panel 500VU, do a continuity check between the pins L and N of the connector 2104VC-A
 「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, ∞∞31-63-00∞∞∞∞∞∞∞∞∞∞Page C212
 Aug 01/05 CES 1 If there is continuity:

_

 - replace the POT-ND, F/O (8WT2) (Ref. IPC 31680801)

 - install the panel 500VU.

 2 If there is no continuity:
_

 - remove the DMC-1 (1WT1),

 - remove the DMC-2 (1WT2)

 - remove the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001)

 - remove the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001)

 - check the wiring between the related LRU and the first terminal block (Ref. ASM 31-68/01)

 - install the DMC-1 (1WT1),

 - install the DMC-2 (1WT2)

 - install the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-400-001)

 - install the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-400-001)

 - install the panel 500VU

 (2) If there is no variation of luminosity on FO ND DU with the FO ND potentiometer (8WT2) on the brightness position:
 - remove the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001)

 - check the wiring between the FO ND DU (3WT2) and the FO ND potentiometer (8WT2) (Ref. ASM 31-68/01)

 - install the FO ND DU (3WT2) (Ref. AMM TASK 31-63-22-400-001)

 5. Close-up
________
 A. Do the test given in Para. 3.A.

 Loss of the Brightness Control on the EWD DU
 1. Possible Causes
_______________
 - DU-ECAM, UPPER (4WT1)

 - CTL PNL-ECAM (6WT)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-004 EIS System Test
 AMM 31-61-12-000-001 Removal of the ECAM Control Panel (6WT)
 AMM 31-61-12-400-001 Installation of the ECAM Control Panel (6WT)
 AMM 31-63-22-000-001 Removal of the Display Unit
　
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