1_ If the fault continues:
- replace the ACP-CAPT (2RN1) (Ref. AMM TASK 23-51-12-000-001)
and (Ref. AMM TASK 23-51-12-400-001).
2_ If the fault continues:
- connect a new hand microphone to the Captain hand microphone
receptacle (19RN1) on the panel 17VU.
3_ If the fault continues:
- replace the RCPT-HAND MIC, CAPT (19RN1) (Ref. IPC 235108).
4_ If the fault continues:
- do a check and repair the wiring (between AMU (1RN) pins
AA/10F, 10G and pins 1 and 2 of the Captain hand microphone
receptacle (19RN1)) (Ref. ASM 23-51/02).
- do a check of continuity between pin AA/12J and pin AA/12K of the AMU (1RN) (Ref. ASM 23-51/03).
(a) If there is continuity between the two pins:
- replace the SW-RAD PTT, F/O (12RN) (Ref. AMM TASK 27-92-41-000-001) and (Ref. AMM TASK 27-92-41-400-001).
1 If the fault continues:
_
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
2 If the fault continues:
_
- do a check and repair the wiring between AMU (1RN) pins AA/12J, 12K and pins 1, 2 of the radio PTT switch (12RN) (Ref. ASM 23-51/03).
(b) If there is no continuity between the two pins:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
1 If the fault continues:
_
- replace the ACP-F/O (2RN2) (Ref. AMM TASK 23-51-12-000-001) and (Ref. AMM TASK 23-51-12-400-001).
2 If the fault continues:
_
- connect a new hand microphone to the First Officer hand microphone receptacle (19RN2) on the panel 16VU.
3 If the fault continues:
_
- replace the RCPT-HAND MIC, F/O (19RN2) (Ref. IPC 235108).
4 If the fault continues:
_
- do a check and repair the wiring (between AMU (1RN) pins AA/13F, 13G and pins 1 and 2 of the First Officer hand microphone receptacle (19RN2)) (Ref. ASM 23-51/03).
(3) If the fault is at the Third Occupant station:
- replace the AMU (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
(a) If the fault continues:
- replace the ACP-3RD OCCPNT (2RN3) (Ref. AMM TASK 23-51-12-000-001) and (Ref. AMM TASK 23-51-12-400-001).
(b) If the fault continues:
- connect a new hand microphone to the Third Occupant hand microphone receptacle (19RN3) on the panel 62VU.
(c) If the fault continues:
- replace the RCPT-HAND MIC, F/O (19RN3) (Ref. IPC 235108).
(d) If the fault continues:
- do a check and repair the wiring (between AMU (1RN) pins AA/1F, 1G and pins 1 and 2 of the Third Occupant hand microphone receptacle (19RN3)) (Ref. ASM 23-51/04).
E. Do the test given in Para. 3.
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-210, 301-399, 401-499,
TASK 23-11-00-810-809
Loss of the Two HF Communications
1. Possible Causes
_______________
- ANTENNA-HF (5RE)
- HF Feeder
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-11-00-740-001 Bite Test of the HF System
AMM 23-11-11-000-001 Removal of the HF Antenna (5RE)
AMM 23-11-11-400-001 Installation of the HF Antenna (5RE)
ASM 23-11/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the HF system (Ref. AMM TASK 23-11-00-740-001). NOTE : Do this test for the two HF systems.
____
4. Fault Isolation
_______________
**ON A/C 001-049, 101-105, 151-199,
A. If the test gives the two maintenance messages
HF1 ANTENNA (5RE)/FEEDER (6RE1)/CPLR (4RE1)/COAX and
HF2 ANTENNA (5RE)/FEEDER (6RE2)/CPLR (4RE2)/COAX:
- replace the ANTENNA-HF (5RE) (Ref. AMM TASK 23-11-11-000-001) and (Ref. AMM TASK 23-11-11-400-001).
(1) If the fault continues:
- do a check and repair the HF Feeder from the HF antenna (5RE) to the first terminal block (Ref. ASM 23-11/01).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 COMMUNICATIONS 通訊1(49)
