(a) If the fault continues:
- replace the ATSU (1TX1) (Ref. AMM TASK 46-21-34-000-001) and (Ref. AMM TASK 46-21-34-400-001).
(b) If the fault continues:
- remove the VHF 3 transceiver (Ref. AMM TASK 23-12-33-000-001)
- remove the ATSU (Ref. AMM TASK 46-21-34-000-001)
- check and repair the wiring of the ATSU FREQ SELECT INPUT PORTA between pins AA/1E, 1F of the ATSU and pins AB/11A, 11B of the VHF 3 transceiver (Ref. ASM 46-21/06).
- check and repair the wiring of the ATSU INPUT BUS COM-2 between pins AB/1G, 1H of the ATSU and pins AB/12A, 12B of the VHF 3 transceiver (Ref. ASM 46-21/06).
- install the ATSU (Ref. AMM TASK 46-21-34-400-001)
- install the VHF 3 transceiver (Ref. AMM TASK 23-12-33-400-001).
B. Do the test given in Para. 3.A.
「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, 151-199, 201-299, 301-399, ∞∞23-12-00∞∞∞∞∞∞∞∞∞∞Page 241
401-499, Aug 01/05 CES
**ON A/C ALL
TASK 23-12-00-810-827
Loss of one or more VHF transmission/reception
1. Possible Causes
_______________
- CAPT PTT SWITCH (11RN)
- F/O PTT SWITCH (12RN)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-12-00-710-001 Operational Test of the VHF System AMM 27-92-41-000-010 Removal of the Radio PTT Switch (11RN,12RN) AMM 27-92-41-400-010 Installation of the Radio PTT Switch (11RN,12RN) TSM 23-12-00-810-813 Loss of the VHF 1 Transmission TSM 23-12-00-810-814 Loss of the VHF 1 Reception TSM 23-12-00-810-815 Loss of the VHF 2 Transmission TSM 23-12-00-810-816 Loss of the VHF 2 Reception
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the VHF system (Ref. AMM TASK 23-12-00-710-001).
4. Fault Isolation
_______________
A. The transmission function is not possible during the operational test of the VHF 1/VHF 2 system:
- Do the procedure (Ref. TSM TASK 23-12-00-810-813) for the VHF 1.
- Do the procedure (Ref. TSM TASK 23-12-00-810-815) for the VHF 2.
(1) If the reception function is not possible during the operational test of the VHF1/VHF 2 system:
- Do the procedure (Ref. TSM TASK 23-12-00-810-814) for the VHF 1.
- Do the procedure (Ref. TSM TASK 23-12-00-810-816) for the VHF 2.
(a) If the fault continues and if the Captain does a report of the event:
- Replace on the Captain's side stick the CAPT PTT SWITCH (11RN), (Ref. AMM TASK 27-92-41-000-010) (Ref. AMM TASK 27-92-41-400-010).
「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 : ALL ∞∞23-12-00∞∞∞∞∞∞∞∞∞∞Page 242
Aug 01/05R CES
(b) If the fault continues and if the First Officer does a report of the event:
- Replace on the First Officer's side stick the F/O PTT SWITCH (12RN), (Ref. AMM TASK 27-92-41-000-010) (Ref. AMM TASK 27-92-41-400-010).
B. Do the operational test of the VHF system (Ref. AMM TASK 23-12-00-710-001).
RADIO MANAGEMENT - FAULT ISOLATION PROCEDURES
_____________________________________________
TASK 23-13-00-810-805
Loss of the Tuning Data for the VHF 1 System
1. Possible Causes
_______________
- XCVR-VHF, 1 (1RC1)
- RMP-COM/NAV FREQ SEL, 1 (1RG1)
- wiring from VHF 1 transceiver (1RC1) to RMP 1 (1RG1)
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,
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