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TWO IC-F121 W/OPC-617 NO REPEATED AUDIO

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bbo14

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I have two IC-F121 radios, (the 128 channel version, not the S models), both with ICOM OPC-617 cables, and I have two DB9 connectors, wired to make a repeater. I have programmed them, and the receive radio does key up the transmit radio, and the transmit radio is sending out the CTCSS subaudible tone. Problem is, there is no repeated audio from the transmit radio. If I key the radio with a mic, there is audio. The wiring between the OPC-617 cables is as follows: pin 3 to pin 4, pin 5 to pin 6, 7 8 and 9 go to corresponding pins 7 8 and 9. I read about jumpering jumper F on the MAIN board.

No audio passed thru from receiver to transmitter. I have the IC-F121 service manual and from what I see, I have jumpered the proper jumper.

Any help greatly appreciated. 73, Bob
 

bbo14

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Jul 29, 2018
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Found and fixed. PAD F had solder on it but wasn't making connection. (Good ol' skool signal tracer found it). Repaired that and now there is audio out. Now for the ID'er and controller, and got to fix a nagging desense. Probably the notch caps on the transmit side. Back to the IFR1200S and retune.
 
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