Cb Transmits at times

Discussion in 'CB Radio Forum' started by Mabas, Dec 29, 2016.

  1. Dec 29, 2016 #1
    Mabas

    Mabas Bobtail Member

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    Dec 29, 2016
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    I have a pc76xl that transmits on occasion.
    Ill be talking and 5-10mins later it'll stop radio still is on i can receive others talking to me. In order to make it work i have to turn off the radio for a while then it works fine. Any ideas what could be happening. Thanks
     
    Mabas, Dec 29, 2016
    Mabas, Dec 29, 2016
    #1
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  3. Dec 29, 2016 #2
    Neverready

    Neverready Medium Load Member

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    May be something in the radio but I had a microphone cause similar actions. It just did it occasionally then got worse. When I tried a spare mike it went away. Took mike apart found they had stripped one wire too far and it would make contact with one of the other pins causing it to go into transmit. Why it seemed to get progressively worse I couldn't say. Taped up the bare section and it worked fine.
     
    Neverready, Dec 29, 2016
    Neverready, Dec 29, 2016
    #2
    Bout Z Thanks this.
  4. Dec 29, 2016 #3
    jessejamesdallas

    jessejamesdallas Road Train Member

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    Could be the Mic, Could also be a solder joint...I would start by switching Mic's.
     
    jessejamesdallas, Dec 29, 2016
    jessejamesdallas, Dec 29, 2016
    #3
    Bout Z Thanks this.
  5. Dec 30, 2016 #4
    Bout Z

    Bout Z Light Load Member

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    I would also try a different mic, first.
    A 76xl would be getting some age on it now, so I wouldnt rule out a solder joint as JJD mentioned, or possibly a failing component.
     
    Bout Z, Dec 30, 2016
    Bout Z, Dec 30, 2016
    #4
  7. Dec 30, 2016 #5
    rabbiporkchop

    rabbiporkchop Road Train Member

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    I had a defective audio chip in a couple of those. Had to wiggle it sometimes. Finally replaced the chip. No more issues
     
    rabbiporkchop, Dec 30, 2016
    rabbiporkchop, Dec 30, 2016
    #5
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