- do a check of the circuit breaker (2RG2) status.
(1) If the circuit breaker is closed:
- do a check for 28VDC at pin A/N of the RMP 2 (1RG2) (Ref. ASM 23-13/01).
(a) If there is 28VDC:
- replace the RMP-COM/NAV FREQ SEL, 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
(b) If there is no 28VDC:
- do a check for a ground signal at pin A/R of the RMP 2 (1RG2) (Ref. ASM 23-13/01).
1 If there is no ground signal:
_
- repair the wiring between the RMP 2 (1RG2) pin A/R and the ground terminal (Ref. ASM 23-13/01).
2 If there is a ground signal:
_
- do a check of the wiring between the RMP 2 (1RG2) pin A/N and the circuit breaker (2RG2) (Ref. ASM 23-13/01).
a If there is no continuity:
_ - repair the above wiring.
b If there is continuity:
_
- replace the circuit breaker (2RG2).
(2) If the circuit breaker is open:
- close it.
(a) If it opens again:
- replace the RMP 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
1 If the fault continues:
_
- do a check for a short to ground at the wiring between the RMP 2 (1RG2) pin A/N and the circuit breaker (2RG2) (Ref. ASM 23-13/01).
a If there is a short to ground:
_ - repair the related wiring.
b If there is no short to ground:
_
- replace the C/B-COM NAV/RMP/2 (2RG2).
「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, 051-061, 101-105, ∞∞23-13-00∞∞∞∞∞∞∞∞∞∞Page 250
May 01/05 CES (b) If the circuit breaker stays closed and the fault continues:
- replace the RMP 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
R **ON A/C 062-099, 106-149, 151-199, 201-299, 301-399, 401-499,
B. If the tests give these three maintenance messages
RMP2(1RG2)
RMP2(1RG2)/RMP1(1RG1)
RMP2(1RG2)/RMP3(1RG3):
- do a check of the circuit breaker (2RG2) status.
(1) If the circuit breaker (2RG2) is closed:
- do a check for 28VDC at pin A/N of the RMP 2 (1RG2) (Ref. ASM 23-13/01).
(a) If there is 28VDC:
- replace the RMP-COM/NAV FREQ SEL, 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
(b) If there is no 28VDC:
- do a check for a ground signal at pin A/R of the RMP 2 (1RG2) (Ref. ASM 23-13/01).
1 If there is no ground signal:
_
- repair the wiring between the RMP 2 (1RG2) pin A/R and the ground terminal (Ref. ASM 23-13/01).
2 If there is a ground signal:
_
- do a check of the wiring between the RMP 2 (1RG2) pin A/N and the circuit breaker (2RG2) (Ref. ASM 23-13/01).
a If there is no continuity:
_ - repair the above wiring.
b If there is continuity:
_
- replace the circuit breaker (2RG2).
(2) If the circuit breaker (2RG2) is open:
- close it.
(a) If it opens again:
- replace the RMP 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
1 If the fault continues:
_
- do a check for a short to ground at the wiring between the RMP 2 (1RG2) pin A/N and the circuit breaker (2RG2) (Ref. ASM 23-13/01).
「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 ∞∞23-13-00∞∞∞∞∞∞∞∞∞∞Page 251
Aug 01/05 CES
R a_ If there is a short to ground:
R - repair the related wiring.
R b_ If there is no short to ground:
R - replace the C/B-COM NAV/RMP/2 (2RG2).
R (b) If the circuit breaker stays closed and the fault continues:
R - replace the RMP 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and
R (Ref. AMM TASK 23-13-13-400-001).
R **ON A/C ALL
C. Do the test given in Para. 3.B.
TASK 23-13-00-810-831
Failure of One of the Three RMPs: The RMP 3
1. Possible Causes
_______________
- RMP-COM FREQ SEL, 3 (1RG3)
- wiring
- C/B-COM NAV/RMP/3 (2RG3)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯1(87)
