TASK 23-51-00-810-815
Loss of the Data from the AMU to the Third Occupant ACP
1. Possible Causes
_______________
- ACP-3RD OCCPNT (2RN3)
- AMU (1RN)
- wiring from AMU (1RN) to Third Occupant ACP (2RN3)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-51-00-740-002 BITE Test of the Audio System AMM 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) AMM 23-51-12-400-001 Installation of the Audio Control Panel (ACP) (2RN1,
2RN2, 2RN3, 2RN4, 2RN5) 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 23-51/04
3. Fault Confirmation
__________________
A. Test Do the BITE test of the AMU-ACP (Ref. AMM TASK 23-51-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message NO DATA FROM AMU TO ACP 3:
- replace the ACP-3RD OCCPNT (2RN3) (Ref. AMM TASK 23-51-12-000-001) and (Ref. AMM TASK 23-51-12-400-001).
(1) If the fault continues:
- replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
(a) If the fault continues:
- do a check and repair the wiring from AMU (1RN) to Third Occupant ACP (2RN3) of the DATA OUTPUT CARD 3 signal (from pins AB/12C, 11C to pins A/K, J) (Ref. ASM 23-51/04).
B. Do the test given in Para. 3. R
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Nov 01/04 CES
TASK 23-51-00-810-818
Loss of the Power Supply of the ACP 1 and AMU Card 1
1. Possible Causes
_______________
- ACP-CAPT (2RN1)
- AMU (1RN)
- C/B-COM/AUDIO/ACP/CPT (4RN)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-51-00-740-002 BITE Test of the Audio System AMM 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) AMM 23-51-12-400-001 Installation of the Audio Control Panel (ACP) (2RN1,
2RN2, 2RN3, 2RN4, 2RN5) 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 23-51/02
3. Fault Confirmation
__________________
A. Test Do the BITE test of the AMU-ACP (Ref. AMM TASK 23-51-00-740-002).
4. Fault Isolation
_______________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/AUDIO/ACP/CAPT 4RN G06
B. If the BITE test gives the two maintenance messages AUDIO, NO DATA FROM ACP1 and AUDIO MANAGEMENT UNIT:
- do a check of the circuit breaker (4RN) status.
(1) If the circuit breaker is closed:
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