- reconnect the electrical connector to the DEU mount 2015VU1 (Ref. AMM TASK 23-73-48-400-001),
- disconnect the electrical connector 7201VC3 from the DEU mount 2011VU3 (Ref. AMM TASK 23-73-48-000-001),
- do a check for a short circuit again.
- b.1. If there is no short circuit:
- do a check for a short circuit at the disconnected connector 7201VC3 between pin 9 and GND (pin 11) and between pin 10 and GND (pin 11).
- b.1.1. If there is a short circuit:
- repair the wiring between the DEU mount 2011VU3 and the DEU mount 2015VU1 (Ref. ASM 23-73/06).
- b.1.2. If there is no short circuit:
- install a new DEU mount 2011VU3 (Ref. AMM TASK 23-73-48-400-001).
- b.2. If there is a short circuit:
- reconnect the electrical connector to the DEU mount 2011VU3 (Ref. AMM TASK 23-73-48-400-001),
- do the steps (4. B. (5) (b) 2 b) again for the subsequent DEU(s) and DEU mount(s) until the maintenance message stops: (Ref. ASM 23-73/06) DEU-B (300RH1) and DEU mount 2011VU1.
(6) If the resistance (line to line) is more than 200 ohms (open circuit):
- disconnect the electrical connector 7247VC1 from the DEU mount 2015VU1 (Ref. AMM TASK 23-73-48-000-001),
- make sure that the resistance (line to line) is not more than 200 ohms (open circuit) between: DEU mount 2015VU1 pin A/1 and pin A/2
(a) If there is an open circuit:
- install a new DEU mount 2015VU1 (Ref. AMM TASK 23-73-48-400-001)
(b) If there is no open circuit:
- reconnect the electrical connector to the DEU mount 2015VU1 (Ref. AMM TASK 23-73-48-400-001)
- disconnect the electrical connector 7201VC1 from the DEU mount 2011VU1 (Ref. AMM TASK 23-73-48-000-001),
- do a check of the wiring (continuity-check) between:
「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, 101-105, 201-299, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page A255
Aug 01/05 CES
DIR-CIDS (101RH) connector AA/D14 and the connector 7201VC1 pin
A/1,
DIR-CIDS (101RH) connector AA/E14 and the connector 7201VC1 pin
A/2.
1_ If there is no continuity:
- repair the wiring between the DIR-CIDS (101RH) and the
connector 7201VC1 (Ref. ASM 23-73/06).
2 If there is continuity:
_
- do a check of the wiring (continuity-check) between: DEU mount 2011VU1 pin A/1 and pin A/9 , DEU mount 2011VU1 pin A/2 and pin A/10.
a If there is no continuity:
_
- install a new DEU mount 2011VU1 (Ref. AMM TASK 23-73-48-000-001) and (Ref. AMM TASK 23-73-48-400-001)
b If there is continuity:
_
- reconnect the connector 7201VC1 to the DEU mount 2011VU1 (Ref. AMM TASK 23-73-48-400-001)
- do the steps 4. B. (6) again for the subsequent DEU mounts until the maintenance message stops: DIR-CIDS (101RH) and DEU mount 2011VU3/connector 7201VC3, DIR-CIDS (101RH) and DEU mount 2015VU1/connector 7247VC1.
(7) If the resistance (line to line) is less than 80 ohms (short circuit):
- remove the DEU-B (300RH5) (Ref. AMM TASK 23-73-47-000-001).
- do a check for a short circuit again.
(a) If there is no short circuit:
- install a new DEU-B (300RH5) (Ref. AMM TASK 23-73-47-400-001).
(b) If there is a short circuit:
- install the removed DEU-B (300RH5) (Ref. AMM TASK 23-73-47-400-001).
- diconnect the electrical connector 7247VC1 from the DEU mount 2015VU1 (Ref. ASM 23-73/06),
- do a check for a short circuit again.
1 If there is a short circuit:
_
- reconnect the electrical connector to the DEU mount 2015VU1 (Ref. AMM TASK 23-73-48-400-001),
- do the steps 4. B. (7) again for the subsequent DEU(s) and DEU mount(s) until the maintenance message stops: (Ref. ASM 23-73/06) DEU mount 2011VU3, DEU-B (300RH1) and DEU mount 2011VU1,
2 If there is no short circuit:
_
- do a check for a short circuit at the disconnected connector between the pins A/9 and A/10 (Ref. ASM 23-73/06)
a If there is a short circuit:
_
- repaire the wiring between the related DEU mount 2011VUxx and the DEU mount 2015VUxx/2011VUxx (Ref. ASM 23-73/06).
b If there is no short circuit:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯2(98)
