TASK 23-24-00-810-811
 Loss of the FWC1 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 FWC1 (1WW1)/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/14G and AB/14H of the ACARS MU (1RB) to the first terminal block (Ref. ASM 23-24/02).
 B. Do the test given in Para. 3.

 TASK 23-24-00-810-813

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

 - DMU (1TV)

 - 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) AMM 31-36-34-000-001 Removal of the Data Management Unit (DMU) (1TV) AMM 31-36-34-400-001 Installation of the Data Management Unit (DMU) (1TV) 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 DMU (1TV)/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:

 - replace the DMU (1TV) (Ref. AMM TASK 31-36-34-000-001) and (Ref. AMM TASK 31-36-34-400-001).

 (2) If the fault continues:

 - do a check and repair the wiring from pins AB/11J and AB/11K of the DMU (1TV) to pins AB/7J and AB/7K of the ACARS MU (1RB) (Ref. ASM 23-24/02).
 B. Do the test given in Para. 3.
 「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 : 001-049, 051-099, 101-105, ∞∞23-24-00∞∞∞∞∞∞∞∞∞∞Page 211
 May 01/05 CES

 TASK 23-24-00-810-814

 Failure of the ACARS MU
 1. Possible Causes
_______________
 - MU-ACARS (1RB)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-24-00-710-001 Operational Test of the ACARS
 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)

 3. Fault Confirmation

__________________
 A. Test
 (1) Do the operational test of the ACARS (Ref. AMM TASK 23-24-00-710-001).
 4. Fault Isolation
_______________
 A. If the test confirms the fault:
 - replace the MU-ACARS (1RB) (Ref. AMM TASK 23-24-34-000-001) and (Ref. AMM TASK 23-24-34-400-001).

 TASK 23-24-00-810-815

 Loss of the ACARS-MU Data Transmission
 1. Possible Causes
_______________
 - MU-ACARS (1RB)

 - XCVR-VHF, 3 (1RC3)

 - wiring from the ACARS MU (1RB) to the VHF3 transceiver (1RC3)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-12-33-000-001 Removal of the VHF Transceiver (1RC1, 1RC2, 1RC3) AMM 23-12-33-400-001 Installation of the VHF Transceiver (1RC1, 1RC2,
　
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