Question about Cobra 148 GTL 120-Channels Base CB Radio
Tried 3 working mics, no audio at all, AM or SSB. I hear a slight sound from the speaker. External speaker no sound either. TX is perfect, and I can see I am receiving by the meter swing, I've just got no sound. I suspect an audio chip went bad>
Part number is TA7222P 10 pin in line chip with radio faceing you part side up look on right side of chassie tward the back it's mounted on the board but fastened to the chassie use heat sink compound on new one when replaceing it and that's only if your SEAKER checks out okay!
Posted on Jul 07, 2007
Yeppers you have a common problem of the audio output IC being bad or a defective speaker. If there is an external speaker jack, try another speaker just to make sure. Good Luck
Posted on Jun 07, 2007
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Posted on Jan 02, 2017
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