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__________________
 A. Test
 (1) Do the operational test of the HF system (Ref. AMM TASK 23-11-00-710-001).
 NOTE : Do this test for the HF 1 system only.
____
 4. Fault Isolation
_______________
 A. If the transmission function is not possible during the operational test of the HF 1 system:
 - replace the XCVR-HF, 1 (3RE1) (Ref. AMM TASK 23-11-33-000-001) and (Ref. AMM TASK 23-11-33-400-001).
 (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 from the HF 1 transceiver (3RE1) to the AMU (1RN) of the MIKE INPUT signal, from pins AB/1A, 1B to pins AA/4D, 4E) (Ref. ASM 23-11/01).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 201-299, 301-399, ∞∞23-11-00∞∞∞∞∞∞∞∞∞∞Page 235
 401-499, Aug 01/05 CES

 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 : 051-099, 106-149, 201-299, 301-399, ∞∞23-11-00∞∞∞∞∞∞∞∞∞∞Page 236
 401-499, Aug 01/05 CES

 TASK 23-11-00-810-816

 Loss of the HF 1 Reception
 1. Possible Causes
_______________
 - XCVR-HF, 1 (3RE1)

 - AMU (1RN)

 - wiring from the HF 1 transceiver (3RE1) to the AMU (1RN)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 23-11-00-710-001 Operational Test of the HF System
 AMM 23-11-33-000-001 Removal of the HF Transceiver (3RE1, 3RE2)
 AMM 23-11-33-400-001 Installation of the HF Transceiver (3RE1, 3RE2)
 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)
 ASM 23-11/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the HF system (Ref. AMM TASK 23-11-00-710-001).
 NOTE : Do this test for the HF 1 system only.
____
 4. Fault Isolation
_______________
 A. If the reception function is not possible during the operational test of the HF 1 system:
 - replace the XCVR-HF, 1 (3RE1) (Ref. AMM TASK 23-11-33-000-001) and (Ref. AMM TASK 23-11-33-400-001).
 (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 from the HF 1 transceiver (3RE1) to the AMU (1RN) of the AUDIO SIDETONE OUTPUT signal, from pins AB/1E, 1D to pins AA/4A, 4B (Ref. ASM 23-11/01).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 201-299, 301-399, ∞∞23-11-00∞∞∞∞∞∞∞∞∞∞Page 237
 401-499, Aug 01/05 CES

R **ON A/C 051-099, 201-210, 301-399, 401-499,

 TASK 23-11-00-810-817
 Loss of the HF 2 Transmission
 1. Possible Causes
_______________
 - XCVR-HF, 2 (3RE2)

 - AMU (1RN)

 - wiring from the HF 2 transceiver (3RE2) to the AMU (1RN)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 23-11-00-710-001 Operational Test of the HF System
 AMM 23-11-33-000-001 Removal of the HF Transceiver (3RE1, 3RE2)
 AMM 23-11-33-400-001 Installation of the HF Transceiver (3RE1, 3RE2)
 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)
 ASM 23-11/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the HF system (Ref. AMM TASK 23-11-00-710-001).
 NOTE : Do this test for the HF 2 system only.
____
 4. Fault Isolation
_______________
　
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