A320 Trouble Shooting Manual 排故手册 指示和记录系统 2(111)

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 4. Fault Isolation
_______________
 A. If the test gives the maintenance message: FWC2(1WW2)
 - do the fault isolation (Para. 4. A.) of the following procedures (Ref. TASK 31-63-00-810-962), (Ref. TASK 31-63-00-810-963) and (Ref. TASK 31-63-00-810-966).
 (1) If the fault continues:
 - replace the FWC-2 (1WW2) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
 5. Close-up
________
 A. Do the test given in Para. 3.B.
 「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 C205
 Aug 01/05 CES Loss of the CAPT PFD DU or no Variation of Luminosity on the CAPT PFD DU

 

 1. Possible Causes
_______________
 - PFD-CAPT (2WT1)

 - POT-PFD, CAPT (7WT1)

 - DMC-1 (1WT1)

 - DMC-2 (1WT2)

 - DMC-3 (1WT3)

 - panel 301VU

 - 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 PFD CAPT(2WT1)/PFD CAPT POT(7WT1):
 (1) If there is no CAPT PFD image:
 - on the panel 301VU, make sure that the CAPT PFD potentiometer (7WT1) is in the center position
 - replace the PFD-CAPT (2WT1), (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 301VU
 - on the panel 301VU, do a continuity check between the pins J and K of the connector 2101VC-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 C206
 Aug 01/05 CES 1 If there is continuity:

 

_

 - replace the POT-PFD, CAPT (7WT1) (Ref. IPC 31680801)

 - install the panel 301VU.

 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 PFD-CAPT (2WT1) (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 PFD-CAPT (2WT1) (Ref. AMM TASK 31-63-22-400-001)

 - install the panel 301VU

 (2) If there is no variation of luminosity on CAPT PFD DU with the CAPT PFD potentiometer (7WT1) on the brightness position:
 - remove the PFD-CAPT (2WT1) (Ref. AMM TASK 31-63-22-000-001)

 - check the wiring between the CAPT PFD DU (2WT1) and the CAPT PFD potentiometer (7WT1) (Ref. ASM 31-68/01)

 - install the CAPT PFD DU (2WT1) (Ref. AMM TASK 31-63-22-400-001)

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

 

 Loss of the CAPT ND DU or no Variation of Luminosity on the CAPT ND DU
 1. Possible Causes
_______________
 - ND-CAPT (3WT1)

 - POT-ND, CAPT (8WT1)

 - DMC-1 (1WT1)

 - DMC-2 (1WT2)

 - DMC-3 (1WT3)

 - panel 301VU

 - 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
　
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