- b.2. If the fault continues:
- install the removed DEU-A (200RH15) (Ref. AMM TASK 23-73-46-400-001),
- reconnect the electrical connector to the DEU TERMINATION BOX (209RH1)
- disconnect the electrical connector from the DEU CONNECTION BOX (208RH13) (Ref. ASM 23-73/06),
- do a check for a short circuit again.
- b.2.1. If there is no short circuit:
- do a check for a short circuit at the connector between pin 9 and GND (pin 4) and between pin 10 and GND (pin 4).
- b.2.1.1. If there is a short circuit:
- repair the wiring between the DEU CONNECTION BOX (208RH13) and the DEU TERMINATION BOX (209RH1) (Ref. ASM 23-73/06).
- b.2.1.2. If there is no short circuit:
- replace the DEU CONNECTION BOX (208RH13) (Ref. AMM TASK 23-73-42-000-001) and (Ref. AMM TASK 23-73-42-400-001).
- b.2.2. If there is a short circuit:
- install the removed DEU-A (200RH13) (Ref. AMM TASK 23-73-46-400-001),
- reconnect the electrical connector to the DEU CONNECTION BOX (208RH13) (Ref. ASM 23-73/06),
- do the steps (4. B. (5) (b) 2 b) again for the subsequent DEUs and connection boxes 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 : 106-149, ∞∞23-73-00∞∞∞∞∞∞∞∞∞∞Page 292
Aug 01/05 CES DEU-A (200RH11) and DEU CONNECTION BOX (208RH11), DEU-A (200RH7) and DEU CONNECTION BOX (208RH7), DEU-A (200RH3) and DEU CONNECTION BOX (208RH3), DEU-A (200RH1) and DEU CONNECTION BOX (208RH1).
(6) If the resistance (line to line) is more than 120 ohms (open circuit):
- disconnect the electrical connector from the DEU TERMINATION BOX (209RH1) (Ref. ASM 23-73/06).
- make sure that the resistance (line to line) is not more than 120 ohms (open circuit) between: DEU TERMINATION BOX (209RH1) pin A/1 and pin A/2
(a) If there is an open circuit:
- replace the DEU TERMINATION BOX (209RH1) (Ref. AMM TASK 23-73-43-000-001) and (Ref. AMM TASK 23-73-43-400-001).
(b) If there is not an open circuit:
- reconnect the electrical connector to the DEU TERMINATION BOX (209RH1).
- disconnect the electrical connector from the DEU CONNECTION BOX (208RH1) (Ref. ASM 23-73/06),
- do a check for continuity at the wiring between: DIR-CIDS, 1 (101RH) connector AA/D15 and the DEU CONNECTION BOX (208RH1) connector pin A/2, DIR-CIDS, 1 (101RH) connector AA/E15 and the DEU CONNECTION BOX (208RH1) connector pin A/1.
1 If there is no continuity:
_
- repair the wiring between the DIR-CIDS, 1 (101RH) connector and the DEU CONNECTION BOX (208RH1) connector (Ref. ASM 23-73/06).
2 If there is continuity:
_
- do a check for continuity of the wiring between: DEU CONNECTION BOX (208RH1) pin A/1 and pin A/9 , DEU CONNECTION BOX (208RH1) pin A/2 and pin A/10.
a If there is no continuity:
_
- replace the DEU CONNECTION BOX (208RH1) (Ref. AMM TASK 23-73-42-000-001) and (Ref. AMM TASK 23-73-42-400-001).
b If there is continuity:
_
- reconnect the connector to the DEU CONNECTION BOX (208RH1).
- do the steps 4. B. (6) again for the subsequent DEU CONNECTION BOXES until the maintenance message stops: DIR-CIDS, 1 (101RH) and DEU CONNECTION BOX (208RH3) connector, DIR-CIDS, 1 (101RH) and DEU CONNECTION BOX (208RH7) connector,
「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 293
Aug 01/05 CES
DIR-CIDS, 1 (101RH) and DEU CONNECTION BOX (208RH11)
connector,
DIR-CIDS, 1 (101RH) and DEU CONNECTION BOX (208RH13)
connector,
DIR-CIDS, 1 (101RH) and DEU TERMINATION BOX (209RH1)
connector,
(7) If the resistance (line to line) is less than 80 ohms (short circuit):
- remove the DEU-A (200RH15) (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 (200RH15) (Ref. AMM TASK 23-73-46-400-001).
(b) If there is a short circuit:
- install the removed DEU-A (200RH15) (Ref. AMM TASK 23-73-46-400-001).
- disconnect the electrical connector from the DEU TERMINATION BOX (209RH1) (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 TERMINATION BOX (209RH1),
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(70)
