4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test gives the maintenance message:
DMC1: NO FWC2 DATA
- replace the DMC-1 (1WT1) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from DMC1 (1WT1) pins AA/10J, 10K to the first terminal block (Ref. ASM 31-52/05).
R **ON A/C 401-499,
A. If the test gives the maintenance message:
FWC2(1WW2) BUSX DATA/DMC1(1WT1)
- replace the DMC-1 (1WT1) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from DMC1 (1WT1) pins AD/8C, 8D to the first terminal block (Ref. ASM 31-52/05).
**ON A/C ALL
B. Do the test given in Para. 3.B.
Loss of the ARINC 429 Link from the FWC2 to the DMC3
1. Possible Causes
_______________
- DMC-3 (1WT3)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input Test
AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC
AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3)
AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3)
ASM 31-52/05
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU EIS/FWC2/SPLY 2WW Q07
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
B. Test Do the EIS input test (system 3) (Ref. AMM TASK 31-60-00-740-002).
R **ON A/C 401-499,
B. Test Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test gives the maintenance message:
DMC3: NO FWC2 DATA
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from DMC3 (1WT3) pins AA/10J, 10K to the first terminal block (Ref. ASM 31-52/05).
R **ON A/C 401-499,
A. If the test gives the maintenance message:
FWC2(1WW2) BUSX DATA/DMC3(1WT3)
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from DMC3 (1WT3) pins AD/8C, 8D to the first terminal block (Ref. ASM 31-52/05).
**ON A/C ALL
B. Do the test given in Para. 3.B.
TASK 31-63-00-810-967
Loss of the ILS 1 Test Display
1. Possible Causes
_______________
- DMC-1 (1WT1)
- RECEIVER-ILS, 1 (2RT1)
- wiring of the ILS 1 INPUT signal
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3)
AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3)
AMM 34-36-00-740-002 BITE Test of the ILS
AMM 34-36-31-000-001 Removal of the ILS Receiver (2RT1,2RT2)
AMM 34-36-31-400-001 Installation of the ILS Receiver (2RT1,2RT2)
ASM 34-36/01
3. Fault Confirmation
__________________
A. Test Do the BITE test of the ILS (system 1) (Ref. AMM TASK 34-36-00-740-002).
4. Fault Isolation
_______________
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 2(107)
