Loss of the ECB 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. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
 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 : NO DATA FROM ECB:
 - 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/12J, 12K 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 264
 Aug 01/05R CES

 Loss of the BLUE RSVR TEMP Input of the SDAC 1
 1. Possible Causes
_______________
 - SDAC-1 (1WV1)

 - XMTR-TEMP, B RSVR (2381GR)

 - wiring from the SDAC 1 (1WV1) to the Blue reservoir temperature transmitter (2381GR)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 29-33-11-000-002 Removal of the Temperature Transmitter (2381GR)
 AMM 29-33-11-400-002 Installation of the Temperature Transmitter (2381GR)
 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 29-33/01

 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 : B HYD TEMP XMTR 2381GR:
 - 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:
 - replace the XMTR-TEMP, B RSVR (2381GR), (Ref. AMM TASK 29-33-11-000-002) and (Ref. AMM TASK 29-33-11-400-002).
 (a) If the fault continues:
 - do a check and repair the wiring from the SDAC 1 (1WV1) to the Blue reservoir temperature transmitter (2381GR) from pins AB/11A, 11B to pins A/E, D , (Ref. ASM 29-33/01).
 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 265
 Aug 01/05R CES

 Loss of the BLUE RSVR TEMP Input of the SDAC 2
 1. Possible Causes
_______________
 - SDAC-2 (1WV2)

 - XMTR-TEMP, B RSVR (2381GR)

 - wiring from the SDAC 2 (1WV2) to the Blue reservoir temperature transmitter (2381GR)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 29-33-11-000-002 Removal of the Temperature Transmitter (2381GR)
 AMM 29-33-11-400-002 Installation of the Temperature Transmitter (2381GR)
 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)
　
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