- replace the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
(b) If there is no 28VDC:
- do a check for a ground signal at pin AA/106 of the F/O ND (3WT2).
1 If there is no ground signal:
_
- repair the wiring from F/O ND (3WT2) pin AA/106 to the ground terminal.
2 If there is a ground signal:
_
- do a check of the wiring from F/O ND (3WT2) pin AA/93 to the circuit breaker (23WT2).
a If there is no continuity:
_ - repair the wiring.
b If there is continuity:
_
- replace the C/B-EIS/ND/F/O/SWTG (23WT2).
(2) If the fault continues:
- do a check for 115VAC at pin AC/2 of the DMC3 (1WT3) (Ref. ASM 31-61/02).
(a) If there is 115VAC:
- 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 115VAC:
- do a check for a ground signal at pin AC/7 of the DCM3 (1WT3).
1 If there is no ground signal:
_
- repair the wiring from DMC3 (1WT3) pin AC/7 to the ground terminal.
2 If there is a ground signal:
_ - replace the RELAY-BUS1 TO ESS BUS SWTG, DMC3 (26WT).
a If the fault continues:
_
- do a check of the wiring from the DMC3 BUS1 TO ESS BUS SWTG relay (26WT): . pin A2 to DMC3 (1WT3) pin AC/2 . pin A1 to the EIS/DMC3/STBY/SPLY circuit breaker (14WT1)
「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 227
201-299, 301-399, Aug 01/05 CES . pin X2 to the BUS 1XP CTL relay (20XN1), repair the wiring which has no continuity.
(3) If the fault continues:
- 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) (Ref. ASM 31-61/02).
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) (Ref. ASM 31-61/02).
a If there is no continuity:
_
- repair the wiring. b If there is continuity:
_ - replace the C/B-EIS/DMC3/SWTG (21WT3).
(4) If the fault continues:
- do a check for a ground signal at pin AB/8H, 4C of the DMC2 (1WT2).
(a) If there is no ground signal:
- do a check for a ground signal at pin AA/4 of the EIS DMC selector switch (18WT) (Ref. ASM 31-68/02).
1 If there is no ground signal:
_
- replace the SEL SW-EIS DMC (18WT). 2 If there is a ground signal:
_
- do a check of the wiring from EIS DMC selector switch (18WT) pin 4 to DMC2 (1WT2) pin AB/8H, 4C.
a If there is no continuity:
_
- repair the wiring. b If there is continuity:
_
- 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 228
201-299, 301-399, Aug 01/05 CES
(b) If there is a ground signal:
- do a check for a ground signal at pin AB/4C of the DMC3 (1WT3) (Ref. ASM 31-68/02).
1 If there is no ground signal:
_
- do a check of the wiring from DMC3 (1WT3) pin AB/4C to the first terminal block (Ref. ASM 31-68/02).
a If there is no continuity:
_
- repair the wiring.
b If there is continuity:
_
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
C. Do the EIS start procedure (F/O ND only) (Ref. AMM TASK 31-60-00-860-001) and make sure that the F/O ND comes 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 229
201-299, 301-399, Aug 01/05 CES
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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(108)
