- remove the MMR1 (Ref. AMM TASK 34-36-31-000-002)
- remove the GPS antenna 1 (Ref. AMM TASK 34-36-16-000-001)
- make sure that there is no moisture and/or corrosion on the coaxial cable of the GPS antenna 1
- if you find corrosion damage, refer to the Structural Repair Manual (Ref. SRM 517400P.BLOCK001) for types, inspection, removal and corrosion protection.
- make sure that there is continuity on the coaxial cable of the GPS antenna 1 (Ref. AMM TASK 20-28-00-912-003)
- replace the coaxial cable if necessary
- make sure that there is discontinuity between the core and shield of the coaxial cable of the GPS antenna 1
- repair if necessary.
(a) If the fault stops:
- install the MMR1 (Ref. AMM TASK 34-36-31-400-002)
- install the GPS antenna 1 (Ref. AMM TASK 34-36-16-400-001).
(b) If the fault continues:
- install a new ANTENNA-GPS ACTIVE, 1 (43RT1) (Ref. AMM TASK 34-36-16-400-001)
- install the MMR1 (Ref. AMM TASK 34-36-31-400-002).
(2) If the trouble shooting data do not give the fault code XA7X or XA8X:
- replace the MMR-1 (40RT1) (Ref. AMM TASK 34-36-31-000-002) and (Ref. AMM TASK 34-36-31-400-002).
**ON A/C ALL
Post SB 34-1147 For A/C 001-004,051-060,
B. 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 ∞∞34-36-00∞∞∞∞∞∞∞∞∞∞Page 282
Aug 01/05 CES
TASK 34-36-00-810-842
Failure of the MMR1
1. Possible Causes
_______________
- MMR-1 (40RT1)
- wiring between the MMR receiver 1 and the first ground terminal
- wiring between the circuit breaker (42RT1) and the MMR receiver 1
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 34-36-00-740-003 BITE Test of the MMR
AMM 34-36-31-000-002 Removal of the Multi Mode Receiver (40RT1, 40RT2)
AMM 34-36-31-400-002 Installation of the Multi Mode Receiver (40RT1,
40RT2)
ASM 34-36/01
3. Fault Confirmation
__________________ **ON A/C ALL R Post SB 34-1147 For A/C 001-004,051-060,
A. Test Do the BITE test of the MMR1 (Ref. AMM TASK 34-36-00-740-003).
4. Fault Isolation
_______________
**ON A/C ALL
R Post SB 34-1147 For A/C 001-004,051-060, Post SB 34-1184 For A/C 001-004,
R Post SB 34-1186 For A/C 001-049,101-101,
A. If the test gives the maintenance message MMR1 (40RT1):
- remove the MMR-1 (40RT1) (Ref. AMM TASK 34-36-31-000-002).
- do a check for a ground signal at pin AC/7 of the MMR receiver 1.
(1) If there is no ground signal:
- do a check and repair the wiring between the MMR receiver 1 and the first ground terminal: pin AC/7 of the MMR receiver 1 (Ref. ASM 34-36/01)
- install the MMR receiver 1 (Ref. AMM TASK 34-36-31-400-002).
(2) If there is a ground signal:
- do a check for 115VAC between pins AC/7 and AC/9 of the MMR receiver 1.
(a) If there is no 115VAC:
- do a check and repair the wiring between the circuit breaker (42RT1) and the MMR receiver 1: pin AC/9 of the MMR receiver 1 (Ref. ASM 34-36/01)
- install the MMR receiver 1.
(b) If there is 115VAC:
- install a new MMR receiver 1.
**ON A/C ALL
R Post SB 34-1147 For A/C 001-004,051-060,
B. Do the test given in Para. 3.
TASK 34-36-00-810-843
Loss of the ILS Data in the MMR2
1. Possible Causes
_______________
- MMR-2 (40RT2)
2. Job Set-up Information
______________________
A. Referenced Information
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本文链接地址：A320 Trouble Shooting Manual 排故手册 导航 NAVIGATION 2(125)
