- do the steps 4. B. (6) again for the subsequent DEU mounts until the maintenance message stops: DIR-CIDS (101RH) and DEU mount 2010VU6/connector 7213VC6, DIR-CIDS (101RH) and DEU mount 2010VU10/connector 7213VC10, DIR-CIDS (101RH) and DEU mount 2010VU14/connector 7213VC14, DIR-CIDS (101RH) and DEU mount 2010VU18/connector 7213VC18, DIR-CIDS (101RH) and DEU mount 2010VU22/connector 7213VC22, DIR-CIDS (101RH) and DEU mount 2014VU4/connector 7253VC4.
(7) If the resistance (line to line) is less than 80 ohms (short circuit):
- remove the DEU-A (200RH26) (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 (200RH26) (Ref. AMM TASK 23-73-46-400-001).
(b) If there is a short circuit:
- install the removed DEU-A (200RH26) (Ref. AMM TASK 23-73-46-400-001).
- diconnect the electrical connector 7253VC4 from the DEU mount 2014VU4 (Ref. ASM 23-73/06),
- do a check for a short circuit again.
「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 A246
Aug 01/05 CES 1 If there is a short circuit:
_
- reconnect the electrical connector to the DEU mount 2014VU4 (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) DEU-A (200RH22) and DEU mount 2010VU22, DEU-A (200RH18) and DEU mount 2010VU18, DEU-A (200RH14) and DEU mount 2010VU14, DEU-A (200RH10) and DEU mount 2010VU10, DEU-A (200RH6) and DEU mount 2010VU6, DEU-A (200RH2) and DEU mount 2010VU2.
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 2014VU4 (Ref. AMM TASK 23-73-48-400-001).
**ON A/C 151-199,
B. If the CIDS1/CIDS BUS test gives the maintenance message TOP LINE 2R:
- remove the DIR-CIDS (101RH) (Ref. AMM TASK 23-73-34-000-001),
- make sure that at least one cabin door is open,
- close these CBs:
49VU: 157RH (G02) CIDS/DIR 2/ESS,
121VU:156RH (M07) CIDS/DIR 2/NORM,
- wait for approx. 120 s,
- do the CIDS2/CIDS BUS test through the MCDU/CFDS.
(1) If the CIDS2/CIDS BUS test is OK:
- install a new DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-400-001).
(2) If the fault continues:
- remove the DIR-CIDS, 2 (102RH) (Ref. AMM TASK 23-73-34-000-001).
- during the installation of the DIR-CIDS, 1 (101RH) do not close these CBs: 49VU: 157RH (G02) CIDS/DIR 2/ESS, 121VU:156RH (M07) CIDS/DIR 2/NORM,
- install the DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-400-001).
- do the CIDS1/CIDS BUS test through the MCDU/CFDS.
(3) If the CIDS1/CIDS BUS test is OK:
- install a new DIR-CIDS, 2 (102RH) (Ref. AMM TASK 23-73-34-400-001).
「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, 101-105, 151-199, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page A247
201-299, Aug 01/05 CES
(4) If the fault continues:
- remove the DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-000-001)
- make sure that the resistance (line to line) at DIR-CIDS (101RH) and (102RH) connector AA/F15 and connector AA/G15 is between approx. 80 and 200 ohms (Ref. ASM 23-73/06).
(5) If the resistance (line to line) is between approx. 80 and 200 ohms:
- make sure that the resistance (line to GND) is not less than 50 ohms (short circuit) between: DIR-CIDS (101RH) and (102RH) connector AA/F15 and GND, DIR-CIDS (101RH) and (102RH) connector AA/G15 and GND. (Ref. ASM 23-73/06)
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯2(94)
