Cobra 148 GTL 120-Channels Base CB Radio Logo

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Question about Cobra 148 GTL 120-Channels Base CB Radio

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Not working Hi, cobra148gtl-40 channel has no modulation thought the mic and there is no audio or sound, the mic works thought the pa. the needle moves when you modulate but not when you are receiving. thanks

Posted by darren zimmer on

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Anonymous

Crafties is probably right the part you will be looking for is IC6 it's a AF power amp part number TA7222P located with the radio front faceing you and component side up it's on the right side of board twards the back and fastened to the side of the chassie the chassie is used as the heat sink it is a 10 pin in line part.Be sure to use heat sink compound on the new one when fastening it to the chassie. Good Luck

Posted on Jul 07, 2007

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You have more than likely a dead audio output ic gone faulty.look into radio on its back you will see the audio ic on the upper righthand side of radio.the heatsink is bolted onto the case with a plastic screw . its in a single inline package type.

Posted on Jun 28, 2007

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I can only assume that the chipset you are referring to is an ic chip audio or pll which must be working if you are receiving audio.
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Hope this be of initial help/idea. Without a model number, I can't be more specific as to component(s) or PCB location but pls post back for any developments (or lack thereof) or should you need additional information.

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148 GTL 120-Channels Base CB Radio

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