- CFDIU (1TW)

 - wiring from the CFDIU (1TW) to the FWC 1 (1WW1)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
 AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
 AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
 AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC)

 (1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC) (1WW1,1WW2) ASM 31-52/03
 3. Fault Confirmation
__________________
 A. Test Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message FWC1 : NO DATA FROM CFDIU:
 - replace the FWC-1 (1WW1) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
 (1) If the fault continues:
 - replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring from the CFDIU (1TW) to the FWC 1 (1WW1) from pins AA/2B, 2C to pins AE/5J, 5K (Ref. ASM 31-52/03).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-53-00∞∞∞∞∞∞∞∞∞∞Page A206
 Feb 01/05R CES

 Loss of the CFDIU Output Bus by the FWC 2
 1. Possible Causes
_______________
 - FWC-2 (1WW2)

 - CFDIU (1TW)

 - wiring from the CFDIU (1TW) to the FWC 2 (1WW2)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
 AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
 AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
 AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC)

 (1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC) (1WW1,1WW2) ASM 31-52/03
 3. Fault Confirmation
__________________
 A. Test Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message FWC2 : NO DATA FROM CFDIU:
 - replace the FWC-2 (1WW2) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
 (1) If the fault continues:
 - replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring from the CFDIU (1TW) to the FWC 2 (1WW2) from pins AB/2H, 2J to pins AE/5J, 5K (Ref. ASM 31-52/03).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-53-00∞∞∞∞∞∞∞∞∞∞Page A207
 Feb 01/05R CES

 Loss of the CIDS-SDF1 or SDCU Channel 1 Bus Detected by the FWC 1
 1. Possible Causes
_______________
 - FWC-1 (1WW1)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-50-00-710-001 Ground Scanning of the Central Warning System AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC) (1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC) (1WW1,1WW2) ASM 31-52/03
 3. Fault Confirmation
__________________
 A. Do the ground scanning of the central warning system (FWC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message:
 FWC1 : NO DATA FROM SDCU1
 or
 FWC1 : NO DATA FROM CIDS-SDF1

 - replace the FWC-1 (1WW1) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
　
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