EFFECTIVITY SIL ALL 34-43 TASK 801
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Weather Radar Receiver/Transmitter
Figure 201 (Sheet 1 of 4)/ 34-43-00-990-803
EFFECTIVITY SIL ALL 34-43 TASK 801
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Weather Radar Receiver/Transmitter
Figure 201 (Sheet 2 of 4)/ 34-43-00-990-803
EFFECTIVITY SIL 014, 015, 020 34-43 TASK 801
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Weather Radar Receiver/Transmitter
Figure 201 (Sheet 3 of 4)/ 34-43-00-990-803
EFFECTIVITY SIL 001-003 34-43 TASK 801
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Weather Radar Receiver/Transmitter
Figure 201 (Sheet 4 of 4)/ 34-43-00-990-803
EFFECTIVITY SIL 004-021, 101-999 34-43 TASK 801
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802. Weather Radar Receiver/Transmitter Problem -Fault Isolation
A. Description
(1) The weather radar operational test shows a receiver/transmitter fault.
B. Possible Causes
(1)
Weather radar receiver/transmitter, M101.
(2)
Weather radar waveguide assembly.
SIL 014, 015, 020
(3)
Left (Right) Weather radar receiver/transmitter, M101 (M460).
(4)
Weather radar waveguide assembly.
SIL ALL
C. Circuit Breakers
(1) These are the primary circuit breakers related to the fault:
CAPT Electrical System Panel, P18-3
Row Col Number Name
SIL 014, 015, 020
C 7 C01678 WEATHER RADAR RT RIGHT
F/O Electrical System Panel, P6-1
Row Col Number Name
SIL ALL
D 13 C00120 WEATHER RADAR RT
D. Related Data
(1) (SSM 34-41-11).
E. Initial Evaluation
(1) Do this task: Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-802-001 or Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-803-002.
(a)
If the weather radar operational test passes, then there was an intermittent fault.
(b)
If WXR FAIL RT or WXR WEAK shows, then do the Fault Isolation Procedure below.
F. Fault Isolation Procedure
(1) Replace the weather radar receiver/transmitter, M101.
These are the tasks:
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