Hello I am new on this forum and have a question. I have a Onkyo TX-NR636 that makes some popping or crackling noise on right front channel. I suspect one of the SMD Transistors on the back-side of the board. I allready resoldered the whole board but when it warms up the crackling noise started from the front right channel and is getting worse when it is getting warmer. I also tried some cooling spray and it reacts but cannot really put my finger on the bad transistor. Does anyone have some tips for this Onkyo TX-NR636 repair.
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