1_ If there is no continuity:
- repair the above wiring.
2_ If there is continuity:
- do a check and repair the wiring from HF 1 coupler (4RE1)
pins A/F, H, S to HF 1 transceiver (3RE1) pins AB/5B, 5C, 5H
(Ref. ASM 23-11/01).
B. Do the test given in Para. 3.
「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 : 051-099, 106-149, 201-299, 301-399, ∞∞23-11-00∞∞∞∞∞∞∞∞∞∞Page 232
401-499, Aug 01/05 CES
R **ON A/C 051-099, 201-210, 301-399, 401-499,
TASK 23-11-00-810-814
No Tuning of the HF 2 Coupler
1. Possible Causes
_______________
- COUPLER-HF, 2 (4RE2)
- XCVR-HF, 2 (3RE2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-11-00-710-001 Operational Test of the HF System
AMM 23-11-33-000-001 Removal of the HF Transceiver (3RE1, 3RE2)
AMM 23-11-33-400-001 Installation of the HF Transceiver (3RE1, 3RE2)
AMM 23-11-36-000-001 Removal of the HF Antenna Coupler
AMM 23-11-36-400-001 Installation of the HF Antenna Coupler
ASM 23-11/02
3. Fault Confirmation
__________________
A. Test Do the operational test of the HF system (Ref. AMM TASK 23-11-00-710-001).
NOTE : Do this test for the HF 2 system only.
____
4. Fault Isolation
_______________
A. If the 1000 Hz audio signal continues after 15 seconds transmission:
- replace the COUPLER-HF, 2 (4RE2) (Ref. AMM TASK 23-11-36-000-001) and (Ref. AMM TASK 23-11-36-400-001).
(1) If the fault continues:
- replace the XCVR-HF, 2 (3RE2) (Ref. AMM TASK 23-11-33-000-001) and (Ref. AMM TASK 23-11-33-400-001).
(a) If the fault continues:
- do a check of the wiring of the KEY LINE signal (from HF 2 coupler (4RE2) pin A/K to the first terminal block) (Ref. ASM 23-11/02).
「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 : 051-099, 201-210, 301-399, 401-499, ∞∞23-11-00∞∞∞∞∞∞∞∞∞∞Page 233
Aug 01/05 CES
1_ If there is no continuity:
- repair the above wiring.
2_ If there is continuity:
- do a check and repair the wiring from HF 2 coupler (4RE2)
pins A/F, H, S to HF 2 transceiver (3RE2) pins AB/5B, 5C, 5H
(Ref. ASM 23-11/02).
B. Do the test given in Para. 3.
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
TASK 23-11-00-810-815
Loss of the HF 1 Transmission
1. Possible Causes
_______________
- XCVR-HF, 1 (3RE1)
- AMU (1RN)
- wiring from the HF 1 transceiver (3RE1) to the AMU (1RN)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-11-00-710-001 Operational Test of the HF System
AMM 23-11-33-000-001 Removal of the HF Transceiver (3RE1, 3RE2)
AMM 23-11-33-400-001 Installation of the HF Transceiver (3RE1, 3RE2)
AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN)
AMM 23-51-34-400-001 Installation of the Audio Management Unit (AMU) (1RN)
ASM 23-11/01
3. Fault Confirmation 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1(52)
