- make sure that at least one cabin door is open,
- close these CBs:
49VU: 157RH COM/CIDS/DIR/2
49VU: 18WH AIR COND/CIDS/SDF/DIR 2 ESS,
120VU:156RH COM NAV/CIDS/DIR/NORM/2
122VU: 14WH AIR COND/CIDS/SDF/DIR NORM/2
- wait for approx. 120 s,
- do the CIDS2 Interface and Power-Up Test via the MCDU/CFDS.
(1) If the CIDS2 Interface and Power-Up 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 COM/CIDS/DIR/2 49VU: 18WH AIR COND/CIDS/SDF/DIR 2 ESS, 120VU:156RH COM NAV/CIDS/DIR/NORM/2 122VU: 14WH AIR COND/CIDS/SDF/DIR NORM/2
- install the DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-400-001).
- do the Interface and Power-Up Test via the MCDU/CFDS.
(3) If the Interface And Power-Up 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, 101-149, 201-299, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page 290
Aug 01/05 CES
(4) If the fault continues:
- remove the DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-000-001)
- open these CBs: 49VU: 159RH COM NAV/CIDS/DEU A ESS/FWD L 49VU: 179RH COM NAV/CIDS/DEU A ESS/AFT L 120VU: 163RH COM NAV/CIDS/DEU A NORM/L FWD 120VU: 167RH COM NAV/CIDS/DEU A NORM/L AFT
- make sure that the resistance (line to line) at DIR-CIDS, 1 (101RH) and DIR-CIDS, 2 (102RH) connector AA/D15 and connector AA/E15 is between approx. 80 and 120 ohms (Ref. ASM 23-73/06).
(5) If the resistance (line to line) is between approx. 80 and 120 ohms:
- make sure that the resistance (line to GND) is not less than 200 ohms (short circuit) between: DIR-CIDS, 1 (101RH) and DIR-CIDS, 2 (102RH) connector AA/D15 and GND, DIR-CIDS, 1 (101RH) and DIR-CIDS, 2 (102RH) connector AA/E15 and GND. (Ref. ASM 23-73/06)
(a) If there is no short circuit:
- remove the DEU-A (200RH15) (Ref. AMM TASK 23-73-46-000-001)
- install the DIR-CIDS, 1 (101RH) and DIR-CIDS, 2 (102RH) (Ref. AMM TASK 23-73-34-400-001).
- close these CBs: 49VU: 159RH COM NAV/CIDS/DEU A ESS/FWD L 49VU: 179RH COM NAV/CIDS/DEU A ESS/AFT L 120VU: 163RH COM NAV/CIDS/DEU A NORM/L FWD 120VU: 167RH COM NAV/CIDS/DEU A NORM/L AFT
- do the CIDS Interface and Power-Up Test via the MCDU/CFDS (Ref. AMM TASK 23-73-00-740-010).
1 If the CIDS Interface and Power-UP Test gives the maintenance
_
message DEU-A (200RH15):
- install a new DEU-A (200RH15) (Ref. AMM TASK 23-73-46-400-001).
2 If the CIDS Interface and Power-Up Test gives the maintenance
_
message CIDS TOP BUS 1L/DIR1
- (101RH) install the removed DEU-A (200RH15) (Ref. AMM TASK 23-73-46-400-001).
- do the steps 4. B. (5) (a) again for the subsequent DEUs until the maintenance message stops: (Ref. ASM 23-73/06) DEU-A (200RH13) DEU-A (200RH11) DEU-A (200RH7) DEU-A (200RH3) DEU-A (200RH1)
(b) If there is a short circuit:
- remove the DEU-A (200RH15) (Ref. AMM TASK 23-73-46-000-001)
- 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 : 106-149, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page 291
Aug 01/05 CES 1 If there is no short circuit:
_
- install a new DEU-A (200RH15) (Ref. AMM TASK 23-73-46-400-001).
2 If the fault continues:
_
- disconnect the electrical connector from the DEU TERMINATION BOX (209RH1) (Ref. ASM 23-73/06).
- do a check for a short circuit again.
a If there is no short circuit:
_
- replace the DEU TERMINATION BOX (209RH1) (Ref. AMM TASK 23-73-43-000-001) (Ref. AMM TASK 23-73-43-400-001)
b If the fault continues:
_
- remove the DEU-A (200RH13) (Ref. AMM TASK 23-73-46-000-001)
- do a check for a short circuit again.
- b.1. If there is no short circuit:
- install a new DEU-A (200RH13) (Ref. AMM TASK 23-73-46-400-001). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯2(69)
