- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(b) If there is no 28VDC:
- do a check for a ground signal at pin AC/11 of the DMC3 (1WT3) 1 If there is no ground signal:
_
- repair the wiring from DMC3 (1WT3) pin AC/11 to the ground terminal.
2 If there is a ground signal:
_
- do a check of the wiring from DMC3 (1WT3) pin AC/3 to the circuit breaker (21WT3).
a If there is no continuity:
_
- repair the wiring. b If there is continuity:
_
- replace the C/B-EIS/DMC3/SWTG (21WT3).
C. Do the EIS start procedure (CAPT PFD, CAPT ND and upper ECAM DU only) (Ref. AMM TASK 31-60-00-860-001) and make sure that the display units come on.
5. Close-up
________
A. Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
「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 : 001-049, 051-099, 101-149, 151-199, ∞∞31-63-82∞∞∞∞∞∞∞∞∞∞Page 202
201-299, 301-399, Aug 01/05 CES
Loss of F/O PFD, F/O ND and Lower ECAM DU
1. Possible Causes
_______________
- DMC-2 (1WT2)
- DMC-3 (1WT3)
- wiring
- C/B-EIS/DMC2/SPLY (10WT2)
- C/B-EIS/DMC3/SWTG (21WT3)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-860-001 EIS Start Procedure AMM 31-60-00-860-002 EIS Stop Procedure 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 31-61/02
3. Fault Confirmation
__________________
A. Job Set-up Do the EIS start procedure (F/O PFD, F/O ND and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
B. Test
Make sure that the display units stay off.
4. Fault Isolation
_______________
A. If the three display units stay off and if the EIS DMC selector switch (18WT) on the SWITCHING panel 8VU is at NORM:
(1) Do a check for 115VAC at pin AC/2 of the DMC2 (1WT2) (Ref. ASM 31-61/02).
(a) If there is 115VAC:
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
「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 : 001-049, 051-099, 101-149, 151-199, ∞∞31-63-82∞∞∞∞∞∞∞∞∞∞Page 203
201-299, 301-399, Aug 01/05 CES
(b) If there is no 115VAC:
- do a check for a ground signal at pin AC/7 of the DMC2 (1WT2). 1 If there is no ground signal:
_
- repair the wiring from DMC2 (1WT2) pin AC/7 to the ground terminal.
2 If there is a ground signal:
_
- do a check of the wiring from DMC2 (1WT2) pin AC/2 to the circuit breaker (10WT2).
a If there is no continuity:
_
- repair the wiring. b If there is continuity:
_
- replace the C/B-EIS/DMC2/SPLY (10WT2).
B. If the three display units stay off and if the EIS DMC selector switch (18WT) on the SWITCHING panel 8VU is at CAPT/3:
(1) Do a check for 28VDC at pin AC/3 of the DMC3 (1WT3) (Ref. ASM 31-61/02).
(a) If there is 28VDC:
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(b) If there is no 28VDC:
- do a check for a ground signal at pin AC/11 of the DMC3 (1WT3) 1 If there is no ground signal:
_
- repair the wiring from DMC3 (1WT3) pin AC/11 to the ground terminal.
2 If there is a ground signal:
_
- do a check of the wiring from DMC3 (1WT3) pin AC/3 to the circuit breaker (21WT3).
a If there is no continuity:
_
- repair the wiring. b If there is continuity:
_
- replace the C/B-EIS/DMC3/SWTG (21WT3).
C. Do the EIS start procedure (F/O PFD, F/O ND and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001) and make sure that the display units come on.
5. Close-up
________
A. Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
「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 : 001-049, 051-099, 101-149, 151-199, ∞∞31-63-82∞∞∞∞∞∞∞∞∞∞Page 204
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 3(99)
