Cobra 29 WX NW ST 40-Channels Base CB Radio
Problem for Cobra 29 WX NW ST 40-Channels Base CB Radio

Blowing fuse




By mpsherrod on May 02, 2009

" "
hooked cb to truck,keeps blowing inline fuse

Best Solution

posted on May 03, 2009
Very Helpful)

mchaos

Rank: Guru  Cobra Car Audio & Electronics  Expert
Rating: 90%, 82 votes
Your polarity protection diode has been blown. If you tried hooking up your CB and accidentally pushed the plug in backwards. Inside the radio, there are 2 big black diodes near the transformers, D8 and D23. Replace these with the same or bigger. You can the burnt one out and the radio will work, but if you hook it up wrong again, it will fry the radio.
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