Re: TX98 Blown up power supply
With any TDA4600 based PSU if it's gone bang always replace the capacitor feeding the chopper transistor base which in this case C88, What usually happens is it goes low capacitance and distorts the drive waveform to the chopper transistor leading to it's demise.
Check all the other components back from the base of the chopper to the IC. In really bad blow ups it's not unknown to find L17, R88 and R97 o/c.
John.
|