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Kenwood TM-261 no audio

Discussion in 'Radio Circuits, Repair & Performance' started by N1EBC, Nov 6, 2019.

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  1. N1EBC

    N1EBC Ham Member QRZ Page

    I have a TM-261 that I can no longer hear anything on? Even with Squelch all the way down I can hear no static or anything. External speaker is the same.
    If it's a problem with mic should I be able to hear anything with the mic disconnected?

    Thanks,
    N1EBC
     
  2. KA5IPF

    KA5IPF Ham Member QRZ Page

    What does the s-meter show? If nothing it's probably a pll unlock situation.
     
  3. N1EBC

    N1EBC Ham Member QRZ Page

    Smeter appears to work. When I move squelch it will show busy suggesting a signal rotate squelch other way busy dissappears. i can transmit and using a scanner hear my transmission and others respond to me through scanner.
    If it's the mic should I hear tranmissions with it disconnected? Because I don't when it's disconnected, is there and audio chip in this radio?

    N1EBC
     
  4. KA5IPF

    KA5IPF Ham Member QRZ Page

    If the s-meter shows a signal when hams are responding to you then it's receiving. Most likely cause is the Ext Spkr jack. If it breaks there is no audio. Do you have the service manual to trace it out?
     
  5. N1EBC

    N1EBC Ham Member QRZ Page

    Yes, will check it out when I get back from Michigan. Thanks,
    N1EBC
     

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