Question about Cobra 29 WX NW ST 40-Channels Base CB Radio

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Radio wont light up

My radio wont come on an the power is on but wont light up.

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Check the inline power fuse first/or replace it! If that does'nt work then next make sure the radio is in the operating possition on the switches labeled>cb/pa< to cb mode. If this does'nt work then you may have a wire from your power plug inside the radio broken loose or a blown diode. If in fact the wire is connected inside the radio the diode would be my next guess. This happens when the polarity of the radio is reversed(hooked up backwards). This can be fixed relativley easy at your local radio shop for about 30$. Good Luck.

Posted on Jan 18, 2009

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Hi there!

These repairs can be a little tricky to fix with out seeing the radio and the right equipment. Try replacing also D8 and or C123in between both diodes but first make sure on the other side of the trace side there are no burned out traces and they all look good. These traces can have a very small crack that you cant see with the naked eye so use a good magnified glass. Also is is there any lights on at all on the radio when you plug it in?? Because some times TR23 will go out and the radio wont come on but there will still be a meter light or green RX light!! Hope this helps a little let us know if you have other questions!!

Dennis

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