2 If there is continuity:
_
- do a check and repair the wiring from upper ECAM DU (4WT1) pins AA/38, 39 to the first terminal block (Ref. ASM 31-61/04).
B. Do the test given in Para. 3.
Loss of the ENG2 N1 Indication on the Upper ECAM DU Detected by the DMC
1. Possible Causes
_______________
- DMC-3 (1WT3)
- 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 DMC3 : ENG2 N1 DSPLY ERR:
- on the ECAM control panel, set the UPPER DISPLAY potentiometer to OFF and do the test given in Para. 3.
(1) If this test gives the maintenance message DMC3 : ENG2 N1 DSPLY ERR:
- 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:
- do a check of the wiring from the DMC3 (1WT3) to the DMC1 (1WT1): . pins AB/11B, 11C to pins AB/11J, 11H . pins AB/11D, 11E to pins AB/11F, 11G (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 207
Feb 01/98 CES a If there is no continuity:
2_ If there is continuity:
- do a check of the wiring from DMC1 (1WT1) pins AB/11B, 11C
to the first terminal block.
_ - repair the wiring.
b If there is continuity:
_
- do a check and repair the wiring from DMC1 (1WT1) pins AB/11D, 11E to the first terminal block.
(2) If this test gives no maintenance message:
- 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/35, 36 to the first terminal block.
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/38, 39 to the first terminal block (Ref. ASM 31-61/04).
B. Do the test given in Para. 3.
Loss of the ENG1 N2 Indication on the Upper ECAM DU Detected by the DMC3
1. Possible Causes
_______________
- DMC-3 (1WT3)
- 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 DMC3 : ENG1 N2 DSPLY ERR:
- on the ECAM control panel, set the UPPER DISPLAY potentiometer to OFF and do the test given in Para. 3.
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 指示和記錄系統 2(122)
