Panasonic sa-ak250 eirror f61⚡ Repair

Panasonic sa-ak250 eirror f61⚡ Forget the F61 error forever.✔ Conversion in connection with transistors. Ask if there are problems, I will answer. Be careful of high power! Repair wisely! Put like it on if you got to fix it, if not then you don't like it. I will answer all your questions.