It generated multiple faults, but now it's working except balance is not perfectly centered, at times it's hardly audible. The suspect is the transistors Q21 and Q22 (marked green). I changed them and then the balance got a lot better, and quieter channel changed from right to left.
It has new power transistors, control- and protection chips. Idle current is adjusted like the manual says.
Should I change the Q21 and Q22?
It has new power transistors, control- and protection chips. Idle current is adjusted like the manual says.
Should I change the Q21 and Q22?
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