Question about Radio Shack TRC-503 CB Radio
Posted by Anonymous on
My Radio Shack TRC-503 has the same problem. Did you solve the problem? My radio had a bad speaker, and it worked great with another speaker hooked-up. But after installing a new speaker today, it started doing feedback during transmit, no matter what speaker I use.
Posted on Feb 24, 2013
It could be grounded inside...Somebody may had it set for Talkback features.. Take it apart look for speaker wires (see if soldered to resistors) if its shorted seperate wires ..just have speakers wires attached. Try external SPKR. Try different mics or radio may have gone bad completely.
Posted on Apr 07, 2011
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Posted on Jan 02, 2017
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