Loss of the Audio Signal from the Marker Receiver of the VOR/MKR Receiver 1
1. Possible Causes
_______________
- RECEIVER-VOR/MKR, 1 (3RS1)
- AMU (1RN)
- wiring of the MARKER AUDIO bus from the AMU (1RN) to the VOR/MKR receiver 1 (3RS1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN)
AMM 23-51-34-400-001 Installation of the Audio Management Unit (AMU) (1RN)
AMM 34-55-00-720-001 Functional Test of the VOR/MKR
AMM 34-55-31-000-001 Removal of the VOR/MKR Receiver (3RS1, 3RS2)
AMM 34-55-31-400-001 Installation of the VOR/MKR Receiver (3RS1, 3RS2)
ASM 34-55/01
3. Fault Confirmation
__________________
A. Test
(1) Do the functional test of the VOR/MKR (Ref. AMM TASK 34-55-00-720-001).
4. Fault Isolation
_______________
A. If there is no audio signal on the loud speakers during the test, when the MKR data are shown on the PFD:
- replace the RECEIVER-VOR/MKR, 1 (3RS1) (Ref. AMM TASK 34-55-31-000-001) and (Ref. AMM TASK 34-55-31-400-001).
(1) If the fault continues:
- replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).
(a) If the fault continues:
- do a check and repair the wiring of the MARKER AUDIO bus from the AMU (1RN) to the VOR/MKR receiver 1 (3RS1) (Ref. ASM 34-55/01).
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 ∞∞34-55-00∞∞∞∞∞∞∞∞∞∞Page 234
Feb 01/05R CES
TASK 34-55-00-810-819
Loss of the CFDIU Input Bus on the VOR 1
1. Possible Causes
_______________
- RECEIVER-VOR/MKR, 1 (3RS1)
- wiring of the MAINTENANCE DATA INPUT bus from the VOR/MKR receiver 1 (3RS1) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-55-00-740-002 BITE Test of the VOR/MKR
AMM 34-55-31-000-001 Removal of the VOR/MKR Receiver (3RS1, 3RS2)
AMM 34-55-31-400-001 Installation of the VOR/MKR Receiver (3RS1, 3RS2)
ASM 34-55/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the VOR/MKR (Ref. AMM TASK 34-55-00-740-002).
4. Fault Isolation
_______________ R
A. If the test gives the maintenance message CFDIU(1TW)/VOR1(3RS1):
- replace the RECEIVER-VOR/MKR, 1 (3RS1) (Ref. AMM TASK 34-55-31-000-001) and (Ref. AMM TASK 34-55-31-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the MAINTENANCE DATA INPUT bus from the VOR/MKR receiver 1 (3RS1) to the first terminal block (Ref. ASM 34-55/01).
R
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 ∞∞34-55-00∞∞∞∞∞∞∞∞∞∞Page 235
Feb 01/05 CES
TASK 34-55-00-810-820
Loss of the CFDIU Input Bus on the VOR 2
1. Possible Causes
_______________
- RECEIVER-VOR/MKR, 2 (3RS2)
- wiring of the MAINTENANCE DATA INPUT bus from the VOR/MKR receiver 2 (3RS2) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-55-00-740-002 BITE Test of the VOR/MKR
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