A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯1(94)

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 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 WRG : PIN PROG/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 AA/14B, AA/14C and AA/14G to the first terminal block .from pin AA/7D of the ACARS MU (1RB) to pin AA/11D of the ACARS MU (1RB) (Ref. ASM 23-24/01).
 B. Do the test given in Para. 3.

 TASK 23-24-00-810-803

 Loss of the CFDIU 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 CFDIU (1TW)/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 AA/15J and AA/15K of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
 B. Do the test given in Para. 3.

 TASK 23-24-00-810-804

 Loss of the FMGC1 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 FMGC1(1CA1)/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/13G and AB/13H of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
 B. Do the test given in Para. 3.

 TASK 23-24-00-810-805

 Loss of the FMGC2 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 FMGC2(1CA2)/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/13J and AB/13K of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
 B. Do the test given in Para. 3.

 TASK 23-24-00-810-806

 Loss of the MCDU1 Signal by the ACARS MU
 1. Possible Causes
_______________
 - MU-ACARS (1RB)

 - wiring

 2. Job Set-up Information
　
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