Question about Cobra 29 LTD CB Radio

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Not reciving sound

When i call out to one of my friends for a radio check he responds back but i cant here him i know this because i can here him on the phone

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  • brian c
    brian c May 11, 2010

    Agreed. He didn't say if he recently changed the mic, etc (could be wired wrong).

    Check the RF gain knob too (does that model have an RF gain?)

    I used to have a habit of accidentally moving the RIT knob on my 2510, and would tell everyone they sounded off frequency :)

    SHARCNET-USA May 11, 2010

    What happens when you turn the squelch all the way down? Do you hear background static noise? Could you have a problem with your antenna? Good point Nitro, if there is meter deflection that would indicate the receiver is working and there's possibly a problem with the audio output stage or speaker.

    Have you tried hooking up an external speaker? If you hear sound there, then your speaker could be bad.

    - Jim

  • brian c
    brian c May 11, 2010

    Is your meter moving at all when he tries to call you?



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Could be the audiochip

Posted on Mar 12, 2008

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Hi all,

Agree with Nitrostrike and sharcnet (though I beg to disagree on the audio output stage - there's TX + modulation asking for a radio check).

With their indulgence and if I may add, could also possibly be the mic. You can try shorting pin 4 to the chassis ground to see if the audio will come out. If yes then its either the mic ptt switch or the coiled cord.

Good luck and kind regards to all.

Posted on Feb 10, 2008


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