R R (2) If the fault continues: - do a check and repair the coaxial from the VHF 1transceiver (1RC1) to the VHF 1 antenna (4RC1) (Ref. ASM 23-12/01) and (Ref. ESPM 204416W01).
B. Do the test given in Para. 3.
TASK 23-12-00-810-824
Failure of the ANTENNA/VHF2 coaxial connection
1. Possible Causes
_______________
- XCVR-VHF, 2 (1RC2)
- ANTENNA-VHF, 2 (4RC2)
- coaxial from the VHF 2 transceiver (1RC1) to the VHF 2 antenna (4RC2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R ESPM 204416W01 AMM 23-12-00-710-001 AMM 23-12-11-000-001 AMM 23-12-11-400-001 AMM 23-12-33-000-001 AMM 23-12-33-400-001
R ASM 23-12/02
3. Fault Confirmation__________________
A. Test
Operational Test of the VHF System
Removal of the VHF Antennas (4RC1) and (4RC2)
Installation of the VHF Antennas (4RC1) and (4RC2)
Removal of the VHF Transceiver (1RC1, 1RC2, 1RC3)
Installation of the VHF Transceiver (1RC1, 1RC2,
1RC3)
(1) Do the operational test of the VHF system (Ref. AMM TASK 23-12-00-710-001).
NOTE : Do this test for the VHF 2 system only.
____
4. Fault Isolation
_______________
A. If the operational test shows the VHF2 system malfunction:
- replace the XCVR-VHF, 2 (1RC2), (Ref. AMM TASK 23-12-33-000-001) and (Ref. AMM TASK 23-12-33-400-001).
(1) If the fault continues:
- replace the ANTENNA-VHF, 2 (4RC2), (Ref. AMM TASK 23-12-11-000-001) and (Ref. AMM TASK 23-12-11-400-001).
(2) If the fault continues:
- do a check and repair the coaxial from the VHF 2 transceiver (1RC1) R to the VHF 2 antenna (4RC2) (Ref. ASM 23-12/02) and (Ref. ESPM R 204416W01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 001-049, 101-105, 151-199, ∞∞23-12-00∞∞∞∞∞∞∞∞∞∞Page 238
Aug 01/05 CES
B. Do the test given in Para. 3.
R **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
TASK 23-12-00-810-826
Loss of the ATSU/VHF3 Interface
1. Possible Causes
_______________
- XCVR-VHF, 3 (1RC3)
- ATSU (1TX1)
- wiring of the ATSU FREQ SELECT INPUT PORT A
- wiring of the ATSU INPUT BUS COM-2
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-12-00-740-001 BITE Test of the VHF System
AMM 23-12-33-000-001 Removal of the VHF Transceiver (1RC1, 1RC2, 1RC3)
AMM 23-12-33-400-001 Installation of the VHF Transceiver (1RC1, 1RC2,
1RC3) AMM 46-21-34-000-001 Removal of the Air Traffic Service Unit (ATSU) (1TX1) AMM 46-21-34-400-001 Installation of the Air Traffic Service Unit (ATSU)
(1TX1)
ASM 46-21/06
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the VHF system (Ref. AMM TASK 23-12-00-740-001).
NOTE : Do this test for the VHF 3 only.
____
4. Fault Isolation
_______________
A. If the test gives the maintenance message :
ACARS MU1 (1RB1)/VHF3 (1RC3) or
RMP 1/2/3 (1RG1/2/3)/ACARS MU (1RB)/VHF 3 (1RC3)
(1) If the ACARS indication comes into view in the ACTIVE display window of the RMP where the VHF 3 is set: 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(71)
