Loss of the OXYGEN HP Input of the SDAC 2
 1. Possible Causes
_______________
 - SDAC-2 (1WV2)

 - 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 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
 AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2)
 ASM 31-54/02

 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
 B. Test Do the operational test of the central warning systems (SDAC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message SDAC2 : OX PRESS REG XMTR 4HT
 - replace the SDAC-2 (1WV2), (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring from the SDAC 2 (1WV2) pins AB/13E, 13F to the first terminal block , (Ref. ASM 31-54/02).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-54-00∞∞∞∞∞∞∞∞∞∞Page 248
 Aug 01/05R CES

 TASK 31-54-00-810-847 Loss of the ACHC Bus of the SDAC 1
 1. Possible Causes
_______________
 - SDAC-1 (1WV1)

 - 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 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
 AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2)
 ASM 31-54/03

 3. Fault Confirmation

__________________
 A. Test Do the operational test of the central warning systems (SDAC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message SDAC1 : NO DATA FROM ACHC
 - replace the SDAC-1 (1WV1), (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring from the SDAC 1 (1WV1) pins AE/15A, 15B to the first terminal block , (Ref. ASM 31-54/03).
 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 ∞∞31-54-00∞∞∞∞∞∞∞∞∞∞Page 249
 Aug 01/05R
 CES  TASK 31-54-00-810-848 Loss of the ACHC Bus of the SDAC 2

 1. Possible Causes
_______________
 - SDAC-2 (1WV2)

 - 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 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
 AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2)
 ASM 31-54/03

 3. Fault Confirmation

__________________
 A. Test Do the operational test of the central warning systems (SDAC) (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message SDAC2 : NO DATA FROM ACHC
 - replace the SDAC-2 (1WV2), (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring from the SDAC 2 (1WV2) pins AE/15A, 15B to the first terminal block , (Ref. ASM 31-54/03).
　
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