TASK 23-12-00-810-819
Loss of the BUS 1 Data from the CFDIU to the VHF 1
1. Possible Causes_______________
- XCVR-VHF, 1 (1RC1) - wiring
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM AMM AMM ASM 23-12-00-740-001 23-12-33-000-001 23-12-33-400-001 31-32/02 BITE Test of the VHF SystemRemoval of the VHF Transceiver (1RC1, 1RC2, 1RC3)Installation of the VHF Transceiver (1RC1, 1RC2, 1RC3)
3. Fault Confirmation__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU CFDS/CFDIU/SPLY 2TW J18
R **ON A/C ALL
R Post SB 31-1163 For A/C 155-156,208-209,
R 121VU CFDS/CFDIU/BACK/UP 8TW J17
R **ON A/C ALL
B. Do the BITE test of the VHF system (Ref. AMM TASK 23-12-00-740-001).
NOTE : Do this test for the VHF 1 only.____
4. Fault Isolation
_______________
A. If the test gives the maintenance message CFDIU (1TW)/VHF1 (1RC1):
- replace the XCVR-VHF, 1 (1RC1) (Ref. AMM TASK 23-12-33-000-001) and (Ref. AMM TASK 23-12-33-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the BUS 1 OUTPUT signal, (from VHF 1 transceiver (1RC1) pins AB/6A, 6B to the first terminal block)(Ref. ASM 31-32/02).
B. Do the test given in Para. 3.B.
「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 230
Feb 01/05R
CES
TASK 23-12-00-810-820
Loss of the BUS 2 Data from the CFDIU to the VHF 2
1. Possible Causes_______________
- XCVR-VHF, 2 (1RC2) - wiring
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM AMM AMM ASM 23-12-00-740-001 23-12-33-000-001 23-12-33-400-001 31-32/03 BITE Test of the VHF SystemRemoval of the VHF Transceiver (1RC1, 1RC2, 1RC3)Installation of the VHF Transceiver (1RC1, 1RC2, 1RC3)
3. Fault Confirmation__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU CFDS/CFDIU/SPLY 2TW J18
R **ON A/C ALL
R Post SB 31-1163 For A/C 155-156,208-209,
R 121VU CFDS/CFDIU/BACK/UP 8TW J17
R **ON A/C ALL
B. Test Do the BITE test of the VHF system (Ref. AMM TASK 23-12-00-740-001).
NOTE : Do this test for the VHF 2 only.____
4. Fault Isolation
_______________
A. If the test gives the maintenance message CFDIU (1TW)/VHF2 (1RC2):
- 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:
- do a check and repair the wiring of the BUS 2 OUTPUT signal, (from VHF 2 transceiver (1RC2) pins AB/6A, 6B to the first terminal block) (Ref. ASM 31-32/03).
B. Do the test given in Para. 3.B.
「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 232
Feb 01/05R
CES
TASK 23-12-00-810-821 中國(guó)航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) COMMUNICATIONS 通訊1(69)
