- install a new DEU mount 2010VU21 (Ref. AMM TASK 23-73-48-400-001).
- b.2.2. If there is a short circuit:
- install the removed DEU-A (200RH21) (Ref. AMM TASK 23-73-46-400-001),
- reconnect the electrical connector to the DEU mount 2010VU21 (Ref. AMM TASK 23-73-48-400-001),
- do the steps (4. B. (5) (b) 2 b) again for the subsequent DEUs and DEU mounts until the maintenance message stops: (Ref. ASM 23-73/06) DEU-A (200RH17) and DEU mount 2010VU17, DEU-A (200RH13) and DEU mount 2010VU13, DEU-A (200RH9) and DEU mount 2010VU9, DEU-A (200RH5) and DEU mount 2010VU5, DEU-A (200RH1) and DEU mount 2010VU1.
(6) If the resistance (line to line) is more than 200 ohms (open circuit):
- disconnect the electrical connector 7253VC3 from the DEU mount 2014VU3 (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 2014VU3 pin A/1 and pin A/2
(a) If there is an open circuit:
- install a new DEU mount 2014VU3 (Ref. AMM TASK 23-73-48-400-001)
(b) If there is no open circuit:
- reconnect the electrical connector to the DEU mount 2014VU3 (Ref. AMM TASK 23-73-48-400-001)
- disconnect the electrical connector 7213VC1 from the DEU mount 2010VU1 (Ref. AMM TASK 23-73-48-000-001),
- do a check of the wiring (continuity-check) between: DIR-CIDS (101RH) connector AA/D15 and the connector 7213VC1 pin A/1,
「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 288
Aug 01/05 CES DIR-CIDS (101RH) connector AA/E15 and the connector 7213VC1 pin A/2.
1 If there is no continuity:
_
- repair the wiring between the DIR-CIDS (101RH) and the connector 7213VC1 (Ref. ASM 23-73/06).
2 If there is continuity:
_
- do a check of the wiring (continuity-check) between: DEU mount 2010VU1 pin A/1 and pin A/9 , DEU mount 2010VU1 pin A/2 and pin A/10.
a If there is no continuity:
_
- install a new DEU mount 2010VU1 (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 7213VC1 to the DEU mount 2010VU1 (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 2010VU5/connector 7213VC5, DIR-CIDS (101RH) and DEU mount 2010VU9/connector 7213VC9, DIR-CIDS (101RH) and DEU mount 2010VU13/connector 7213VC13, DIR-CIDS (101RH) and DEU mount 2010VU17/connector 7213VC17, DIR-CIDS (101RH) and DEU mount 2010VU21/connector 7213VC21, DIR-CIDS (101RH) and DEU mount 2014VU3/connector 7253VC3.
(7) If the resistance (line to line) is less than 80 ohms (short circuit):
- remove the DEU-A (200RH25) (Ref. AMM TASK 23-73-46-000-001).
- do a check for a short circuit again.
(a) If there is no short circuit:
- install a new DEU-A (200RH25) (Ref. AMM TASK 23-73-46-400-001).
(b) If there is a short circuit:
- install the removed DEU-A (200RH25) (Ref. AMM TASK 23-73-46-400-001).
- diconnect the electrical connector 7253VC3 from the DEU mount 2014VU3 (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 2014 VU3 (Ref. AMM TASK 23-73-48-400-001),
- do the steps 4. B. (7) again for the subsequent DEUs and DEU mounts until the maintenance message stops: (Ref. ASM 23-73/06)
「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 289
Aug 01/05 CES DEU-A (200RH21) and DEU mount 2010VU21, DEU-A (200RH17) and DEU mount 2010VU17, DEU-A (200RH13) and DEU mount 2010VU13, DEU-A (200RH9) and DEU mount 2010VU9, DEU-A (200RH5) and DEU mount 2010VU5, DEU-A (200RH1) and DEU mount 2010VU1.
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 2010VUxx and the DEU mount 2014VUxx/2010VUxx (Ref. ASM 23-73/06).
b If there is no short circuit:
_
- install a new DEU mount 2014VU3 (Ref. AMM TASK 23-73-48-400-001).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯2(68)
