(b) If there is a ground signal:
- do a check and repair the wiring from Third Occupant ACP (2RN3) pin A/M to the first terminal block (Ref. ASM 23-51/04).
**ON A/C ALL
B. Do the test given in Para. 3.
R **ON A/C 002-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
TASK 23-51-00-810-804
Failure of the Avionics Compartment ACP
1. Possible Causes
_______________
- ACP-AVNCS COMPT (2RN4)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-51-00-740-002 BITE Test of the Audio System AMM 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) AMM 23-51-12-400-001 Installation of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) ASM 23-51/05
3. Fault Confirmation
__________________
A. Test Do the BITE test of the AMU-ACP (Ref. AMM TASK 23-51-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message ACP4(2RN4):
- do a check for 28VDC at pin A/M of the avionics compartment ACP (2RN4) (Ref. ASM 23-51/05).
(1) If there is 28VDC:
- replace the ACP-AVNCS COMPT (2RN4) (Ref. AMM TASK 23-51-12-000-001) and (Ref. AMM TASK 23-51-12-400-001).
(2) If there is no 28VDC:
- do a check for a ground signal at pin A/N of the avionics compartment ACP (2RN4) (Ref. ASM 23-51/05).
(a) If there is no ground signal:
- repair the wiring between avionics compartment ACP (2RN4) pin A/N and the ground terminal (Ref. ASM 23-51/05).
「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 : 002-049, 053-099, 101-149, 151-199, ∞∞23-51-00∞∞∞∞∞∞∞∞∞∞Page 207
201-299, 301-399, 401-499, Aug 01/05 CES
(b) If there is a ground signal:
- do a check and repair the wiring from avionics compartment ACP (2RN4) pin A/M to the first terminal block (Ref. ASM 23-51/05).
B. Do the test given in Para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 002-049, 053-099, 101-149, 151-199, ∞∞23-51-00∞∞∞∞∞∞∞∞∞∞Page 208
201-299, 301-399, 401-499, Aug 01/05 CES
TASK 23-51-00-810-805
Failure of the Fourth Occupant ACP
1. Possible Causes
_______________
- ACP-4TH OCCPNT (2RN5)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-51-00-740-002 BITE Test of the Audio System AMM 23-51-12-000-001 Removal of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) AMM 23-51-12-400-001 Installation of the Audio Control Panel (ACP) (2RN1, 2RN2, 2RN3, 2RN4, 2RN5) ASM 23-51/08
3. Fault Confirmation
__________________
A. Test Do the BITE test of the AMU-ACP (Ref. AMM TASK 23-51-00-740-002).
4. Fault Isolation
_______________
A. If the test gives the maintenance message ACP5(2RN5):
- do a check for 28VDC at pin A/M of the Fourth Occupant ACP (2RN5) (Ref. ASM 23-51/08).
(1) If there is 28VDC:
- replace the ACP-4TH OCCPNT (2RN5) (Ref. AMM TASK 23-51-12-000-001) and (Ref. AMM TASK 23-51-12-400-001).
(2) If there is no 28VDC:
- do a check for a ground signal at pin A/N of the Fourth Occupant ACP (2RN5) (Ref. ASM 23-51/08).
(a) If there is no ground signal:
- repair the wiring between Fourth Occupant ACP (2RN5) pin A/N and the ground terminal (Ref. ASM 23-51/08).
(b) If there is a ground signal:
- do a check and repair the wiring from Fourth Occupant ACP (2RN5) pin A/M to the first terminal block (Ref. ASM 23-51/08).
B. Do the test given in Para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 002-049, 053-099, 101-149, 151-199, ∞∞23-51-00∞∞∞∞∞∞∞∞∞∞Page 209
201-299, 301-399, 401-499, Aug 01/05 CESR **ON A/C ALL
