R  **ON A/C 106-149, 303-399, 401-499,

 TASK 31-63-00-810-890
 Loss of the EEC 1 Channel A Output Bus by the DMC 3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
R  AMM 31-60-00-740-002 EIS Input Test AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3) AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3) ASM 31-62/01
 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/1/FADEC A/AND EIU 1 2KS1 A04
R  **ON A/C 106-149, 303-399,
R B. Test
R Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).

R  **ON A/C 401-499,

 B. Test Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).
 「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 : 106-149, 303-399, 401-499, ∞∞31-63-00∞∞∞∞∞∞∞∞∞∞Page A254
 Aug 01/05 CES

R **ON A/C 106-149, 303-399, 401-499,

 4. Fault Isolation
_______________
R **ON A/C 401-499,
 A. If the test gives the maintenance message EEC(E1-4000KS)BUS
 EEC1A/DMC3(1WT3):

 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring from the DMC 3 (1WT3) pins AE/1J, 1K to the first terminal block (Ref. ASM 31-62/01).
R **ON A/C 106-149, 303-399, 401-499,
 B. Do the test given in Para. 3.B.

 Loss of the EEC 1 Channel B Output Bus by the DMC 3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R  AMM 31-60-00-740-002 AMM 31-60-00-740-007  EIS Input TestGROUND SCANNING Test of the DMC
 AMM 31-63-34-000-001 AMM 31-63-34-400-001 ASM 31-62/01 Removal of the DMC (1WT1,1WT2,1WT3)Installation of the DMC (1WT1,1WT2,1WT3)
 3. Fault Confirmation__________________

 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU ENGINE/ENG1/FADEC B/AND EIU 1 4KS1 R41 
R  **ON A/C 106-149, 303-399, 
R R  B. Test Do the EIS input test (Ref. AMM TASK 31-60-00-740-002). 
R  **ON A/C 401-499,
 B. Test Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).

R  **ON A/C 106-149, 303-399, 401-499,
 4. Fault Isolation_______________ 
R  **ON A/C 401-499,
 A. If the test gives the maintenance message EEC(E1-4000KS)BUS EEC1B/DMC3(1WT3) - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (1) If the fault continues: - do a check and repair the wiring from the DMC 3 (1WT3) pins AE/15J, 15K to the first terminal block (Ref. ASM 31-62/01). 
R  **ON A/C 106-149, 303-399, 401-499,
 B. Do the test given in Para. 3.B.

 Loss of the EEC 2 Channel A Output Bus by the DMC 3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
R  AMM 31-60-00-740-002 EIS Input Test AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3) AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3) ASM 31-62/01
　
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