(2)
Display electronic unit 2, M1809.
EFFECTIVITY
34-43 TASKS 812-813
SIL ALL
Page 245 D633A103-SIL Feb 15/2011
C. Circuit Breakers
(1) These are the primary circuit breakers related to the fault:
F/O Electrical System Panel, P6-1
Row Col Number Name
D 9 C01362 DISPLAY DEU 2 HOLDUP
D 11 C01360 DISPLAY DEU 2 PRI
E 10 C01364 DISPLAY F/O OUTBD
E 11 C01366 DISPLAY F/O INBD
E 12 C01373 DISPLAY CTR LWR
D. Related Data
(1) (SSM 34-41-11).
E. Initial Evaluation
(1)
Make sure the WXR switch on the first officer’s EFIS control panel is selected.
(2)
Make sure the CONTROL PANEL switch on the instrument switching module is set to NORMAL.
(a)
If the WXR DSPY message does not show on the first officer’s display, then there was an intermittent fault.
(b)
If the WXR DSPY message shows on the first officer’s display, then do the Fault Isolation Procedure below.
F. Fault Isolation Procedure
(1) For
DEU-2,
do
this
task:
CDS
BITE
Procedure,
31-62
TASK
801.
Look for any of the maintenance messages related to the LRUs that follow:
(a)
Applicable display unit
(b)
Display electronic unit
1) If any of the above maintenance messages show, then go to the FIM task for that message.
2) If the WXR DSPY message does not show on the first officer’s display, then you corrected the fault.
-------------------------END OF TASK ---------------------------
814. Weather Radar System Problem -Fault Isolation
A. Description
(1) This task is for these weather radar system problems:
(a)
Tilt control.
(b)
Gain control.
(c)
Display blank.
B. Possible Causes
(1)
Weather radar receiver/transmitter, M101.
(2)
Left (Right) Weather radar receiver/transmitter, M101 (M460).
SIL 014, 015, 020
SIL ALL
EFFECTIVITY
34-43 TASKS 813-814
SIL ALL
Page 246 D633A103-SIL Feb 15/2011
(3) Weather radar control panel, P8-52.
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. Initial Evaluation
(1) Make sure that these circuit breakers are closed:
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
(2)
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.
(3)
If the test passes, then there was an intermittent fault.
(4)
If the test does not pass, then do the applicable steps:
(a)
If
WXR
FAIL
RT
shows,
then
do
this
task:
Weather
Radar
Receiver/Transmitter
Problem
-Fault Isolation, 34-43 TASK 802.
(b)
If
WXR
FAIL
ANT
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