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 (a) If the fault continues:
 - do a check and repair the wiring from the DMC1 (1WT1) to the CAPT ND (3WT1): . from pins AB/12B, 12C to pins AA/13, 14 . from pins AB/12H, 12J to pins AA/40, 41 . from pins AB/13B, 13C to pins AA/28, 29 . from pins AB/13H, 13J to pins AA/26, 27 (Ref. ASM 31-61/04).
 B. If the weather radar display is not shown or incorrectly shown on the F/O ND only: - on the center pedestal, on the SWITCHING panel 8VU, set the EIS DMC
 selector switch to F/O/3, and make sure that the weather radar display is correctly shown on the F/O ND.
 (1) If the weather radar display is correctly shown on the F/O ND with the EIS DMC selector switch at F/O/3:
 - replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (a) If the weather radar display is still incorrectly shown on the F/O ND with the EIS DMC selector switch at NORM:
 - do a check of the wiring of the WR1 INPUT 1 and the WR1 INPUT 2 buses from the DMC2 (1WT2) to the first terminal block (Ref. ASM 34-41/01).
 1 If there is no continuity:
_ - repair the above wiring.
 2 If there is continuity:
_
 - do a check and repair the wiring of the W/R SELECTED discrete from the DMC2 (1WT2) to the first terminal block (Ref. ASM 34-41/01).
 (2) If the weather radar display is not correctly shown on the F/O ND with the EIS DMC selector switch at F/O/3:
 - replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 「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 : 001-049, 101-149, 151-199, 201-299, ∞∞34-41-00∞∞∞∞∞∞∞∞∞∞Page 203
 301-399, 401-499, Aug 01/05 CES (a) If the fault continues:

 - do a check and repair the wiring from the DMC2 (1WT2) to the F/O ND (3WT2): . from pins AB/12B, 12C to pins AA/13, 14 . from pins AB/12H, 12J to pins AA/40, 41 . from pins AB/13B, 13C to pins AA/28, 29 . from pins AB/13H, 13J to pins AA/26, 27 (Ref. ASM 31-61/04).
 C. If the weather radar display is not shown or incorrectly shown on the two NDs:
 - do the BITE test of the weather radar (Ref. AMM TASK 34-41-00-740-002).
 NOTE : In case of incorrect avionics ventilation, the radar images are
____
 not shown to prevent overheat of NDs.

 (1) If the test gives a maintenance message:

 - you can find the related trouble shooting procedure in the applicable Page Block 101.

 (2) If the test does not give a maintenance message:

 - replace the XCVR-WEATHER RADAR, 1 (1SQ1) (Ref. AMM TASK 34-41-33-000-004) and (Ref. AMM TASK 34-41-33-400-003).
 (a) If the fault continues:
 - do a check of the wiring of the TR1 DATA BUS 1 OUTPUT and the TR1 DATA BUS 2 OUTPUT buses from the weather radar transceiver1 (1SQ1) to the first terminal block (Ref. ASM 34-41/01).
 1 If there is no continuity:
_ - repair the above wiring.
 2 If there is continuity:
_
 - do a check of the wiring of the weather radar control unit (3SQ): . from pin A/G to the first terminal block . from pin A/A to the ground point . from pins A/K, L, M to the weather radar transceiver 1 (1SQ1), pins AB/6C, 6D, 7D . from pin A/V to the weather radar transceiver 1 (1SQ1), pin AB/6B (Ref. ASM 34-41/01).
 a If there is no continuity:
_ - repair the above wiring.
 b If there is continuity:
_
 - do a check of the wiring of the weather radar transceiver mounting tray (9SQ) : . from pins A/A and A/E to the control unit (3SQ), pins A/D and A/E. . from pin A/F to the ground point.
 「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 : 001-049, 101-149, 151-199, 201-299, ∞∞34-41-00∞∞∞∞∞∞∞∞∞∞Page 204
 301-399, 401-499, Aug 01/05 CES

 . from pin A/C to the weather radar transceiver 1 (1SQ1),
 pin AB/8D.
 (Ref. ASM 34-41/01).

 - if there is no continuity: . repair the above wiring.

 - if there is continuity: . replace the CTL UNIT-WEATHER RADAR (3SQ) (Ref. AMM TASK 34-41-12-000-001) and (Ref. AMM TASK 34-41-12-400-001).

 - If the fault continues: . replace the MTG TRAY-WR XCVR (9SQ) (Ref. AMM TASK 34-41-37-000-001) and (Ref. AMM TASK 34-41-37-400-001).

 - If the radar system trouble shooting is unsatisfactory, replace the RADOME (1560WM) (Ref. AMM TASK 53-15-11-000-001) and (Ref. AMM TASK 53-15-11-400-001).

R **ON A/C 051-099,

R A. If the weather radar display is not shown or incorrectly shown on the
R CAPT ND only:
R - on the weather radar control unit (3SQ), do a check of the position of
　
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