R **ON A/C 051-099,
R TASK 34-41-00-810-813 R Failure of the Weather Radar Control Unit (System 2) R 1. Possible Causes
_______________
R - XCVR-WEATHER RADAR, 2 (1SQ2)
R - CTL UNIT-WEATHER RADAR (3SQ)
R - wiring of the CONTROL BUS from the weather radar control unit (3SQ) to the
R weather radar transceiver 2 (1SQ2)

R 2. Job Set-up Information

______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 34-41-00-740-002 R AMM 34-41-12-000-001 R AMM 34-41-12-400-001 R AMM 34-41-33-000-004 R AMM 34-41-33-400-003 R R ASM 34-41/01
R 3. Fault Confirmation
__________________
R A. Test
BITE Test of the Weather Radar
Removal of the Weather Radar Control Unit (3SQ)
Installation of the Weather Radar Control Unit (3SQ)
Removal of the Weather Radar Transceiver (1SQ1, 1SQ2)
Installation of the Weather Radar Transceiver (1SQ1,
1SQ2)

R (1) Do the BITE test of the weather radar (Ref. AMM TASK 34-41-00-740-R 002).
R 4. Fault Isolation
_______________
R A. If the BITE test gives the maintenance message WXR CNT PNL (3SQ)/WXR2
R (1SQ2):
R - replace the XCVR-WEATHER RADAR, 2 (1SQ2) (Ref. AMM TASK 34-41-33-000-R 004) and (Ref. AMM TASK 34-41-33-400-003).

R (1) If the fault continues:
R - replace the CTL UNIT-WEATHER RADAR (3SQ) (Ref. AMM TASK 34-41-12-R 000-001) and (Ref. AMM TASK 34-41-12-400-001).

R (a) If the fault continues:
R - do a check and repair the wiring of the CONTROL BUS from the
R weather radar control unit (3SQ) to the weather radar
R transceiver 2 (1SQ2) (Ref. ASM 34-41/01).

 「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, ∞∞34-41-00∞∞∞∞∞∞∞∞∞∞Page 235
 May 01/05 CES

R B. Do the test given in para. 3.

R **ON A/C ALL
 TASK 34-41-00-810-816
 Loss of the Maintenance Data Input Bus of the Weather Radar Transceiver 1

 1. Possible Causes
_______________
 - XCVR-WEATHER RADAR, 1 (1SQ1)

 - wiring of the MAINTENANCE DATA INPUT bus from the weather radar transceiver 1 (1SQ1) to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 34-41-00-740-002 BITE Test of the Weather Radar
 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,

 1SQ2)
 ASM 34-41/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the weather radar (Ref. AMM TASK 34-41-00-740-002).
 4. Fault Isolation
_______________
 A. If the BITE test gives the maintenance message CFDIU (1TW)/WXR1 (1SQ1):
 - replace the XCVR-WEATHER RADAR, 1 (1SQ1) (Ref. AMM TASK 34-41-33-000-004) and (Ref. AMM TASK 34-41-33-400-003).
 (1) If the fault continues:
 - do a check and repair the wiring of the MAINTENANCE DATA INPUT bus from the weather radar transceiver 1 (1SQ1) to the first terminal block (Ref. ASM 34-41/01).
 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 ∞∞34-41-00∞∞∞∞∞∞∞∞∞∞Page 237
 May 01/05 CESR **ON A/C 051-099,

R TASK 34-41-00-810-817 R Loss of the Maintenance Data Input Bus of the Weather Radar Transceiver 2 R 1. Possible Causes
_______________
R - XCVR-WEATHER RADAR, 2 (1SQ2) R - wiring of the MAINTENANCE DATA INPUT bus from the weather radar R transceiver 2 (1SQ2) to the first terminal block
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 34-41-00-740-002 R AMM 34-41-33-000-004 R AMM 34-41-33-400-003 R R ASM 34-41/01
R 3. Fault Confirmation
__________________
R A. Test
BITE Test of the Weather Radar
Removal of the Weather Radar Transceiver (1SQ1, 1SQ2)
　
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