TASK 23-24-00-810-807
Loss of the MCDU2 Signal by the ACARS MU
1. Possible Causes
_______________
- MU-ACARS (1RB)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R AMM 23-24-00-740-003 AMM 23-24-34-000-001 Removal of the ACARS Management Unit (MU) (1RB) AMM 23-24-34-400-001 Installation of the ACARS Management Unit (MU) (1RB) ASM 23-24/02
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the ACARS (Ref. AMM TASK 23-24-00-740-003).
4. Fault Isolation
_______________
A. If the test gives the maintenance message MCDU2 (3CA2)/ACARS MU (1RB):
- replace the MU-ACARS (1RB) (Ref. AMM TASK 23-24-34-000-001) and (Ref. AMM TASK 23-24-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from pins AB/14C and AB/14D of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
B. Do the test given in Para. 3.
TASK 23-24-00-810-809
Loss of the Printer Signal by the ACARS MU
1. Possible Causes
_______________
- MU-ACARS (1RB)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 23-24-00-740-003 AMM 23-24-34-000-001 Removal of the ACARS Management Unit (MU) (1RB) AMM 23-24-34-400-001 Installation of the ACARS Management Unit (MU) (1RB) ASM 23-24/02
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the ACARS (Ref. AMM TASK 23-24-00-740-003).
4. Fault Isolation
_______________
A. If the test gives the maintenance message PRINTER (4TW)/ACARS MU (1RB):
- replace the MU-ACARS (1RB) (Ref. AMM TASK 23-24-34-000-001) and (Ref. AMM TASK 23-24-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from pins AB/12J and AB/12K of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
B. Do the test given in Para. 3.
TASK 23-24-00-810-810
Loss of the SDAC1 Signal by the ACARS MU
1. Possible Causes
_______________
- MU-ACARS (1RB)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 23-24-00-740-003 AMM 23-24-34-000-001 Removal of the ACARS Management Unit (MU) (1RB) AMM 23-24-34-400-001 Installation of the ACARS Management Unit (MU) (1RB) ASM 23-24/02
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the ACARS (Ref. AMM TASK 23-24-00-740-003).
4. Fault Isolation
_______________
A. If the test gives the maintenance message SDAC1 (1WV1)/ACARS MU (1RB):
- replace the MU-ACARS (1RB) (Ref. AMM TASK 23-24-34-000-001) and (Ref. AMM TASK 23-24-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from pins AB/14E and AB/14F of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯1(95)
