Question about Cobra 29 LTD CB Radio

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Powering up problem.

I hooked up the power leads properly. When I hooked up the negative wire, it sparked. Now the radio doesn't work at all. A friend of mine had the same thing happen to him with a different radio. Is there something we are doing wrong? Also do you think the radios can be repaired?

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  • 91flexj Jan 31, 2009

    i wired up the radio and it worked perfectly fine. i then unhooked it and mounted it where i wanted it and mounted my antenna then re wired it and now when i turn the power on nothing happens

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The most common problem is the inline fuse. If it is not the fuse you probably blew the polarity protection diodes, d23 + d28. Go to radio shack and get 2 1n4001's and replace them.

Posted on Feb 08, 2009

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It,s the mounting the screws are touching something in the radio when bracketed and yes you probably blew the power diode in the radio, it can be fixed pretty easily. Try a fuse on the ground and the hot next time.

Posted on Feb 01, 2009

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"Where do I connect the three power wires? (radios with 3 power leads)
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Solution #1: Sounds like the ACC lead (yellow) and the Power lead (red) are both connected to the same power wire.

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