R **ON A/C 401-499,
A. If the test gives the maintenance message DU PFD FO(2WT2)
- replace the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the ENG2 N2 Indication on the Upper ECAM DU by the DMC2
1. Possible Causes
_______________
- DMC-2 (1WT2)
- DU-ECAM, UPPER (4WT1)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input 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 31-61/04
3. Fault Confirmation
__________________
A. Test
Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DMC2 : ENG2 N2 DSPLY ERR:
- on the ECAM control panel (6WT), set the UPPER DISPLAY potentiometer to OFF
- do the test given in Para. 3.
(1) If this test gives the maintenance message DMC2 : ENG2 N2 DSPLY ERR:
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(a) If the fault continues:
- do a check of the wiring from DMC2 (1WT2) pins AB/11B, 11C to the first terminal block (Ref. ASM 31-61/04).
1 If there is no continuity:
_ - repair the wiring.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page A244
Feb 01/05 CES (2) If this test does not give a maintenance message:
2_ If there is continuity:
- do a check and repair the wiring from DMC2 (1WT2) pins
AB/11D, 11E to the first terminal block.
- 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:
- do a check of the wiring from upper ECAM DU (4WT1) pins AA/21, 22 to the first terminal block (Ref. ASM 31-61/04).
1 If there is no continuity:
_ - repair the wiring.
2 If there is continuity:
_
- do a check and repair the wiring from upper ECAM DU (4WT1) pins AA/23, 24 to the first terminal block.
B. Do the test given in Para. 3.
Loss of the Upper ECAM DU by the DMC2
1. Possible Causes
_______________
- DU-ECAM, UPPER (4WT1)
- DMC-2 (1WT2)
- wiring from the upper ECAM DU (4WT1) to the DMC2 (1WT2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input 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 31-61/04
3. Fault Confirmation
__________________
A. Test
Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message DMC2 - DU ECAM1 LINK:
- replace the DU-ECAM, UPPER (4WT1) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
(1) If the fault continues:
- do a check of the wiring from the upper ECAM DU (4WT1) to the DMC2 (1WT2)> (Ref. ASM 31-61/04).
(a) If there is no continuity:
- repair the wiring. 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 指示和記錄系統(tǒng) 3(38)
