(b)
Remove the DEU-1, M1808. To move it, do this task: AMM TASK 31-62-21-000-801.
(c)
Do a wiring check between the Left (Right) weather radar receiver/transmitter connector D189B (D673B), and the captain’s DEU-1 connector D3973B (WDM 34-41-11).
D3973B D189B (D673B) (D3973B)
pinC7(C7) ---------------pinB3(B3) pinD7(D7) ---------------pinB4(B4)
(d)
If you find a problem with the wiring, then do these steps: 1) Repair the wiring. 2) Re-install the Left (Right) weather radar receiver/transmitter, M101 (M460). To install it,
do this task: Weather Radar Receiver/Transmitter Installation, AMM TASK 34-43-41-400-801. 3) Re-install the captain’s DEU-1, M1808. To install it, do this task: AMM TASK 31-62-21-400-801. 4) Do this task: Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-802-001. a) If the weather radar operational test passes, then you corrected the fault.
(e)
If you do not find a problem with the wiring, then continue.
1) Re-install the Left (Right) weather radar receiver/transmitter, M101 (M460). To install it, do this task: Weather Radar Receiver/Transmitter Installation, AMM TASK 34-43-41-400-801.
2) Re-install the captain’s DEU-1, M1808. To install it, do this task: AMM TASK 31-62-21-400-801.
SIL ALL
(4) Replace the weather radar receiver/transmitter. To replace it, These are the tasks: Weather Radar Receiver/Transmitter Removal, AMM TASK 34-43-41-000-801, Weather Radar Receiver/Transmitter Installation, AMM TASK 34-43-41-400-801.
(a) 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.
1) If the tilt code does not show then you corrected the fault.
-------------------------END OF TASK ---------------------------811. MAP/WXR RANGE DISAGREE Message Shows on CDS -First Officer’s -Fault Isolation
EFFECTIVITY SIL ALL 34-43 TASK 810
D633A103-SIL BOEING PROPRIETARY -Copyright # Unpublished Work -See title page for details Page 241 Feb 15/2011
A. Description
(1) The display electronic unit (DEU-2) senses the range differences from the first officer’s EFIS control panel, the weather radar receiver/transmitter (WXR) and the flight management computer (FMC).
B. Possible Causes
(1)
First officer’s EFIS control panel, P7-2.
(2)
Weather radar receiver/transmitter, M101.
SIL 014, 015, 020
(3) Left (Right) Weather radar receiver/transmitter, M101 (M460).
SIL ALL
(4)
Flight management computer (FMC), M1175 (FMC 1) or M1632 (FMC 2) (if installed).
(5)
Display electronic unit 2, M1809.
(6)
Wiring.
C. Circuit Breakers
(1) These are the primary circuit breakers related to the fault:
CAPT Electrical System Panel, P18-2
Row Col Number Name
A 6 C01017 FMCS CMPTR 1
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 11 C01360 DISPLAY DEU 2 PRI D 13 C00120 WEATHER RADAR RT D 16 C01262 FMCS CMPTR 2 E 13 C01370 DISPLAY F/O EFIS CONT PANEL
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.
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