R (2) If the circuit breaker (2RG3) is open:
R - close it.
R (a) If it opens again:
R - replace the RMP 3 (1RG3) (Ref. AMM TASK 23-13-13-000-001) and
R (Ref. AMM TASK 23-13-13-400-001).
R 1_ If the fault continues:
R - do a check for a short to ground at the wiring between the
R RMP 3 (1RG3) pin A/N and the circuit breaker (2RG3) (Ref.
R ASM 23-13/01).
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/3 (2RG3).
R (b) If the circuit breaker stays closed and the fault continues:
R - replace the RMP 3 (1RG3) (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 23-13-00-810-829
Failure of One of the Three RMPs: The RMP 1
1. Possible Causes
_______________
- RMP-COM/NAV FREQ SEL, 1 (1RG1)
- wiring
- C/B-COM/RMP/1 (2RG1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-13-00-740-001 BITE Test of the Radio Management AMM 23-13-13-000-001 Removal of the Radio Management Panel (CRMP) (1RG1, 1RG2, 1RG3) AMM 23-13-13-400-001 Installation of the Radio Management Panel (CRMP) (1RG1, 1RG2, 1RG3) ASM 23-13/01
3. Fault Confirmation
__________________
A. Job Set-Up On the RMP 1, RMP 2 and RMP 3, make sure that the ON/OFF switches are at ON.
B. Test Do the BITE test of the Radio Management (Ref. AMM TASK 23-13-00-740-001).
NOTE : Do this test for the RMP 1, RMP 2 and RMP 3.
____
4. Fault Isolation
_______________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/RMP/1 2RG1 G10
「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 245
May 01/99R CES
R **ON A/C 001-049, 051-061, 101-105,
B. If the tests give these three maintenance messages
RMP 1 : NO DATA FROM RMP 1
RMP 2 : NO DATA FROM RMP 1
RMP 3 : NO DATA FROM RMP 1:
- do a check of the circuit breaker (2RG1) status.
(1) If the circuit breaker is closed:
- do a check for 28VDC at pin A/N of the RMP 1 (1RG1) (Ref. ASM 23-13/01).
(a) If there is 28VDC:
- replace the RMP-COM/NAV FREQ SEL, 1 (1RG1) (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 1 (1RG1) (Ref. ASM 23-13/01).
1 If there is no ground signal:
_
- repair the wiring between the RMP 1 (1RG1) 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 1 (1RG1) pin A/N and the circuit breaker (2RG1) (Ref. ASM 23-13/01).
a If there is no continuity:
_ - repair the above wiring.
b If there is continuity:
_
- replace the circuit breaker (2RG1).
(2) If the circuit breaker is open:
- close it.
(a) If it opens again:
- replace the RMP 1 (1RG1) (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 1 (1RG1) pin A/N and the circuit breaker (2RG1) (Ref. ASM 23-13/01).
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