D. Put the aircraft back to its initial configuration.
 (1) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005)

 (2) De-energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-862-002)

 4. Fault Isolation
_______________

 **ON A/C 051-099,
 A. If the test gives the maintenance message WXR1(1SQ1)/DU PFD FO(2WT2)/DMC3 (1WT3):
 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) (Ref. AMM TASK 31-63-34-400-001)
 (1) If the fault continues:

 - replace the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001) (Ref. AMM TASK 31-63-22-400-001)

 (2) If the fault continues:

 - replace the XCVR-WEATHER RADAR, 1 (1SQ1) (Ref. AMM TASK 34-41-33-000-004) (Ref. AMM TASK 34-41-33-400-003)

 (3) If the fault continues:

 - remove the DMC3 (1WT3) (Ref. AMM TASK 31-63-34-000-001)

 - remove the FO PFD DU (2WT2) (Ref. AMM TASK 31-63-22-000-001)

 - remove the WEATHER RADAR-XCVR1 (1SQ1) (Ref. AMM TASK 34-41-33-000-004)

 (a) Check the wiring of the WXR1 OUTPUT BUS from the DMC3 (1WT3) pins AB/14B, 14C to the FO PFD DU (2WT2) (Ref. ASM 31-61/00)

 (b) Check the wiring between the DMC3 (1WT3) and the WEATHER RADAR-XCVR 1 (1SQ1) (Ref. ASM 31-62/00) (Ref. ASM 34-41/00)

 - install the DMC3 (1WT3) (Ref. AMM TASK 31-63-34-400-001)

 - install the FO PFD DU (2WT1) (Ref. AMM TASK 31-63-22-400-001)

 - install the WEATHER RADAR-XCVR1 (1SQ1) (Ref. AMM TASK 34-41-33-400-003)

R **ON A/C 401-499,
 A. If the test gives the maintenance message WXR1(1SQ1)/WXR2(1SQ2)/DU PFD FO(2WT2)/DMC3 (1WT3):
 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) (Ref. AMM TASK 31-63-34-400-001)
 (1) If the fault continues:

 - replace the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001) (Ref. AMM TASK 31-63-22-400-001)

 (2) If the fault continues:

 - replace the XCVR-WEATHER RADAR, 1 (1SQ1) and the XCVR-WEATHER RADAR, 2 (1SQ2) (Ref. AMM TASK 34-41-33-000-004) (Ref. AMM TASK 34-41-33-400-003)
 「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 : 051-099, 401-499, ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page A287
 Aug 01/05 CES (3) If the fault continues:

 - remove the DMC3 (1WT3) (Ref. AMM TASK 31-63-34-000-001)

 - remove the FO PFD DU (2WT2) (Ref. AMM TASK 31-63-22-000-001)

 - remove the WEATHER RADAR-XCVR1 (1SQ1) and the WEATHER RADAR-XCVR2 (1SQ2) (Ref. AMM TASK 34-41-33-000-004)

 (a) Check the wiring of the WXR1 OUTPUT BUS from the DMC3 (1WT3) pins AB/14B, 14C to the FO PFD DU (2WT2) (Ref. ASM 31-61/00)

 (b) Check the wiring between the DMC3 (1WT3) and the WEATHER RADAR-XCVR 1 (1SQ1) and the WEATHER RADAR-XCVR 2 (1SQ2) (Ref. ASM 31-62/00) (Ref. ASM 34-41/00)

 - install the DMC3 (1WT3) (Ref. AMM TASK 31-63-34-400-001)

 - install the FO PFD DU (2WT1) (Ref. AMM TASK 31-63-22-400-001)

 - install the WEATHER RADAR-XCVR 1 (1SQ1) and the WEATHER RADAR-XCVR 2 (1SQ2) (Ref. AMM TASK 34-41-33-400-003)

R **ON A/C 051-099, 401-499,
 B. Do the test given in Para. 3.A.

 Loss of the Weather Radar Picture detected by DMC 1 when the ND is shown on the CAPT ND DU
 1. Possible Causes
_______________
 - DMC-1 (1WT1)

 - ND-CAPT (3WT1)

 - XCVR-WEATHER RADAR, 1 (1SQ1)

 - XCVR-WEATHER RADAR, 2 (1SQ2)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power
 AMM 31-60-00-740-004 EIS System Test
 AMM 31-63-22-000-001 Removal of the Display Unit

 (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2)
 AMM 31-63-22-400-001 Installation of the Display Unit

 (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) 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) AMM 34-10-00-860-002 ADIRS Start Procedure AMM 34-10-00-860-005 ADIRS Stop Procedure AMM 34-41-33-000-004 Removal of the Weather Radar Transceiver (1SQ1, 1SQ2) AMM 34-41-33-400-003 Installation of the Weather Radar Transceiver (1SQ1,
　
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