I need some help: I have a Cobra 148 GTL old radio; it was working great until, I increase the Voltage from the power supply by accident then a boom noise came from the radio. (WHEN OFF) I was able to find the diodes that burn out in the radio and replace them, it is back ON, I could not hear anything trace the voltage and find out that, I burn the TA7222 Audio Amplifier I was able to replaced then the RX is back. However as soon as I press the microphone, red light come-ON watts on AM are...
Cobra 148GTL keyup AM, SSB with no Audio
Cobra 148GTL keyup AM, SSB with no Audio