Sounds like the audio output IC is damaged, or it overheats due to some voltage fluctuations. Check all the DC regulated voltages inside the set. If you wish to see its circuit diagram, visit http://electrotechnician.blogspot.com/ https://electronicshelponline.blogspot.com/
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Sounds like the audio output IC is damaged, or it overheats due to some voltage fluctuations. Check all the DC regulated voltages inside the set. If you wish to see its circuit diagram, visit
http://electrotechnician.blogspot.com/
https://electronicshelponline.blogspot.com/