3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed: -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU CFDS/CFDIU/SPLY 2TW J18 **ON A/C ALL Post SB 31-1163 For A/C 155-156,208-209,
121VU CFDS/CFDIU/BACK/UP 8TW J17 **ON A/C ALL
B. Test
Do the BITE test of the AMU-ACP (Ref. AMM TASK 23-51-00-740-002).
「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 ∞∞23-51-00∞∞∞∞∞∞∞∞∞∞Page 270
May 01/05R
CES
4. Fault Isolation
_______________
**ON A/C 001-001, 051-052,
A. If the test gives the maintenance message AUDIO, NO DATA FROM CFDIU:
- replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the BUS 4 OUTPUT signal (from AMU (1RN) pins AB/15A, 15B to the first terminal block) (Ref. ASM 31-32/05).
R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
A. If the test gives the maintenance message CFDIU(1TW)/AMU(1RN):
- replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the BUS 4 OUTPUT signal (from AMU (1RN) pins AB/15A, 15B to the first terminal block) (Ref. ASM 31-32/05).
**ON A/C ALL
B. Do the test given in Para. 3.B.
R TASK 23-51-00-810-848
R Loss of the Transmission from the Captain Oxygen Mask Microphone R 1. Possible Causes
_______________
R - STOWAGE BOX-OXY MASK, CAPT (10RN1)
R - AMU (1RN)
R - wiring between the 10RN1 and the 1RN
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 23-51-00-710-001 Operational Test of the Audio Management
R AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN)
R AMM 23-51-34-400-001 Installation of the Audio Management Unit (AMU) (1RN)
R AMM 35-12-41-000-001 Removal of the Oxygen-Mask Stowage-Box
R AMM 35-12-41-400-001 Installation of the Oxygen-Mask Stowage-Box
R ASM 23-51/02
R 3. Fault Confirmation__________________
R A. Test
R (1) Do the operational test of the audio management system (Ref. AMM TASK R 23-51-00-710-001).
R 4. Fault Isolation
_______________
R A. After you speak in the microphone of the Captain Oxygen Mask:
R (1) if the reception is incorrect at each loud speaker and Oxygen Mask
R Mike of each crew station:
R - replace the STOWAGE BOX-OXY MASK, CAPT (10RN1) (Ref. AMM TASK 35-R 12-41-000-001) and (Ref. AMM TASK 35-12-41-400-001).
R (a) If the fault continues:
R - replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and
R (Ref. AMM TASK 23-51-34-400-001)
R 1_ If the fault continues:
R - do a check and repair the wiring between the 10RN1 and the
R 1RN (Ref. ASM 23-51/02)
R B. Do the test given in para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞23-51-00∞∞∞∞∞∞∞∞∞∞Page 272
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R TASK 23-51-00-810-849
R Loss of the Transmission from the First Officer Oxygen Mask Microphone R 1. Possible Causes
_______________
R - STOWAGE BOX-OXY MASK, F/O (10RN2)
R - AMU (1RN)
R - wiring between the 10RN2 and the 1RN
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 23-51-00-710-001 Operational Test of the Audio Management
R AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN)
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯2(25)
