(2) If the BITE test does not give the maintenance message VOR 1 RECEIVER:
 - do the EIS input test (Ref. AMM TASK 31-60-00-740-002).
 (a) If the EIS input test gives the maintenance message DMC 1 : NO VOR 1 DATA or DMC 2 : NO VOR 1 DATA:

 - refer to the procedure (Ref. TASK 34-55-00-810-803) or (Ref. TASK 34-55-00-810-804).

 (b) If the EIS input test does not give a maintenance message:

 - 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 ANTENNA-MARKER (1RS) (Ref. AMM TASK 34-55-18-
000-001) and (Ref. AMM TASK 34-55-18-400-001).

 a If the fault continues:
_
 - do a check and repair the wiring from the MARKER antenna (1RS) to the VOR/MKR receiver 1 (3RS1) (Ref. ASM 34-55/01).
 D. 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 231
 Feb 01/05R
 CES  Loss of the Audio Signal from the VOR Receiver of the VOR/MKR Receiver 1

 1. Possible Causes
_______________
 - RECEIVER-VOR/MKR, 1 (3RS1)

 - AMU (1RN)

 - wiring of the VOR1 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 34-55-00-710-001 Operational 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 operational test of the VOR/MKR (Ref. AMM TASK 34-55-00-710-001).
 4. Fault Isolation
_______________
 A. If there is no audio signal on the loud speakers during the test, when the VOR1 data are shown on the ND:
 - 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 VOR1 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 232
 Feb 01/05R CES

 Loss of the Audio Signal from the VOR Receiver of the VOR/MKR Receiver 2
 1. Possible Causes
_______________
 - RECEIVER-VOR/MKR, 2 (3RS2)

 - AMU (1RN)

 - wiring of the VOR2 AUDIO bus from the AMU (1RN) to the VOR/MKR receiver 2 (3RS2)

 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 34-55-00-710-001 Operational 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 operational test of the VOR/MKR (Ref. AMM TASK 34-55-00-710-001).
 4. Fault Isolation
_______________
 A. If there is no audio signal on the loud speakers during the test, when the VOR2 data are shown on the ND:
 - replace the RECEIVER-VOR/MKR, 2 (3RS2) (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).
　
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