- do a check of the wiring of the ground signal at DME receiver 1 pin AC/7.
(a) If there is no continuity:
- repair the above wiring.
C. If the circuit breaker (1SD1) is open:
- close this circuit breaker.
(1) If the circuit breaker (1SD1) trips:
- remove the INTRG-DME, 1 (2SD1) (Ref. AMM TASK 34-51-33-000-001).
- close the circuit breaker (1SD1).
(a) If this circuit breaker stays closed:
- install the DME receiver 1 (Ref. AMM TASK 34-51-33-400-001)
1 If the circuit breaker trips again:
_
- replace the DME receiver 1 (Ref. AMM TASK 34-51-33-000-001) and (Ref. AMM TASK 34-51-33-400-001).
(b) If this circuit breaker trips again:
- do a check for a short to ground at the wiring between the circuit breaker (1SD1) and the DME receiver 1 (2SD1) (Ref. ASM 34-51/01).
1 If there is a short to ground:
_ - repair the above wiring.
「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 ∞∞34-51-00∞∞∞∞∞∞∞∞∞∞Page 202
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2_ If there is no short to ground:
- replace the C/B-NAV/DME 1 (1SD1).
3_ Install the DME receiver 1
(Ref. AMM TASK 34-51-33-400-001).
D. 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 ∞∞34-51-00∞∞∞∞∞∞∞∞∞∞Page 203
Nov 01/04R
CES Failure of the DME Interrogator 2
1. Possible Causes
_______________
- INTRG-DME, 2 (2SD2)
- short to ground at the wiring between the circuit breaker (1SD2) and the DME receiver 2 (2SD2)
- C/B-NAV/DME 2 (1SD2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 34-51-00-740-002 BITE Test of the DME
AMM 34-51-33-000-001 Removal of the DME Interrogator (2SD1,2SD2)
AMM 34-51-33-400-001 Installation of the DME Interrogator (2SD1,2SD2)
ASM 34-51/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU COM NAV/DME/2 1SD2 K06
B. Test
(1) If the circuit breaker (1SD2) trips, refer to Para. 4. C. of this trouble shooting procedure.
(2) Do the BITE test of the DME (Ref. AMM TASK 34-51-00-740-002).
- If the BITE test is not possible, refer to Para. 4. B. of this trouble shooting procedure.
4. Fault Isolation
_______________
R
A. If the circuit breaker (1SD2) is closed, and if the BITE test gives the maintenance message DME2 (2SD2):
- replace the INTRG-DME, 2 (2SD2) (Ref. AMM TASK 34-51-33-000-001) and
(Ref. AMM TASK 34-51-33-400-001). R
「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 ∞∞34-51-00∞∞∞∞∞∞∞∞∞∞Page 204
Nov 01/04 CES
B. If the circuit breaker (1SD2) is closed and if the BITE test is not possible
- do a check for 115VAC at pin AC/1 of the ADF receiver 2.
(1) If there is no 115VAC:
- do a check of the wiring of the 115VAC signal from circuit breaker (1SD2) to DME receiver 2 (2SD2) (Ref. ASM 34-51/01).
(a) If there is no continuity:
- repair the above wiring.
(b) If there is continuity:
- replace the C/B-NAV/DME2 (1SD2).
(2) If there is 115VAC:
- do a check of the wiring of the ground signal at DME receiver 2 pin AC/7.
(a) If there is no continuity:
- repair the above wiring.
C. If the circuit breaker (1SD2) is open:
- close this circuit breaker.
(1) If the circuit breaker (1SD2) trips:
- remove the INTRG-DME, 2 (2SD2) (Ref. AMM TASK 34-51-33-000-001).
- close the circuit breaker (1SD2).
(a) If this circuit breaker stays closed:
- install the DME receiver 2 (Ref. AMM TASK 34-51-33-400-001)
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