4. Fault Isolation
_______________
A. If the test gives the maintenance message NO MDDU DATA:
(1) replace the MDDU (Ref. AMM TASK 31-38-22-000-001) and (Ref. AMM TASK 31-38-22-400-001).
(2) If the fault continues:
- do a check and repair the wiring between the MDDU plug connector and the CFDIU (1TW) (Ref. ASM 31-38/01):
- pin A/24, 25 to pin AA/9F, 9G (1TW).
- pin A/12,13 to pin AA/11F, 11G (1TW).
B. Do the test given in Para. 3.B.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 062-099, 106-149, 151-199, 201-299, ∞∞31-32-00∞∞∞∞∞∞∞∞∞∞Page A290
301-399, 401-499, Aug 01/05 CES
Loss of the BUS from the ATSU to the CFDIU
1. Possible Causes
_______________
- CFDIU (1TW)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-32-00-740-009 Read the AVIONICS STATUS on the MCDU
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
ASM 46-21/06
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
121VU ATSU 1 3TX1 L16
121VU ATSU 1/SWTG 5TX1 L15
R **ON A/C 062-099, 106-149, 151-199, 201-299, 301-399, 401-499,
B. Read the AVIONICS STATUS on the MCDU (Ref. AMM TASK 31-32-00-740-009).
4. Fault Isolation
_______________
A. If the test gives the maintenance message NO ATSU DATA:
(1) replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
(2) If the fault continues:
do a check and repair the wiring from the CFDIU (1TW) pins AB/9B, 9C to the first terminal block (Ref. ASM 46-21/06).
「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 : 062-099, 106-149, 151-199, 201-299, ∞∞31-32-00∞∞∞∞∞∞∞∞∞∞Page A291
301-399, 401-499, Aug 01/05 CES
B. Do the test given in Para. 3.B.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 062-099, 106-149, 151-199, 201-299, ∞∞31-32-00∞∞∞∞∞∞∞∞∞∞Page A292
301-399, 401-499, Aug 01/05 CES
TASK 31-32-00-810-938 No Access to System BITEs from the MCDU
1. Possible Causes
_______________
- CFDIU (1TW)
- computer on the output bus
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-32-00-740-002 BITE Test of the Centralized Fault Display Interface
Unit (CFDIU) AMM 31-32-34-000-001 Removal of the CFDIU (1TW) AMM 31-32-34-400-001 Installation of the CFDIU (1TW) ASM 31-32/02 ASM 31-32/03 ASM 31-32/04 ASM 31-32/05
3. Fault Confirmation
__________________
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 指示和記錄系統 1(57)
