(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 CAPT(3WT1)/ND CAPT POT(8WT1):
(1) If there is no CAPT ND image:
- on the panel 301VU, make sure that the CAPT ND potentiometer (8WT1) is in the center position
- replace the ND-CAPT (3WT1), (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 M and U 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 C208
Aug 01/05 CES 1 If there is continuity:
_
- replace the POT-ND, CAPT (8WT1) (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 ND-CAPT (3WT1) (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-CAPT (3WT1) (Ref. AMM TASK 31-63-22-400-001)
- install the panel 301VU
(2) If there is no variation of luminosity on CAPT ND DU with the CAPT ND potentiometer (8WT1) on the brightness position:
- remove the ND-CAPT (3WT1) (Ref. AMM TASK 31-63-22-000-001)
- check the wiring between the CAPT ND DU (3WT1) and the CAPT ND potentiometer (8WT1) (Ref. ASM 31-68/01)
- install the CAPT ND DU (3WT1) (Ref. AMM TASK 31-63-22-400-001)
5. Close-up
________
A. Do the test given in Para. 3.A.
Loss of the FO PFD DU or no variation of Luminosity on the FO PFD DU
1. Possible Causes
_______________
- PFD-F/O (2WT2)
- POT-PFD, F/O (7WT2)
- 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 PFD FO(2WT2)/PFD FO POT(7WT2):
(1) If there is no FO PFD image:
- on the panel 500VU, make sure that the FO PFD potentiometer (7WT2) is in the center position
- replace the PFD-F/O (2WT2), (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 R and W 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 C210
Aug 01/05 CES 1 If there is continuity:
_
- replace the POT-PFD, F/O (7WT2) (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 PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 2(112)
