Question about Cobra 29 LTD CB Radio
Used a batery charger for power, herd a pop sound. still turns and but no sound at all. will key up but cant be herd a another radio.
It sounds like it may have been hooked up backwards when hooked up to the battery charger. If so it probably blew the polarity diode (D23) (1N4004) and with no sound it probably blew the audio IC (TA7222AP) mounted to the case of the radio. Also look at all of the large capacitors and make sure that the tops are not swollen or busted open if so they need replaced also.
Posted on Jan 07, 2009
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Posted on Jan 02, 2017
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