U101 was burned up, replaced it but still no standby 3.3v. Also replaced C104, C121.
I have found a working board, trying to figure what's wrong with the bad one. I've compared all resistors and diodes in the area against the working one. Everything seems good.
The one thing I've found is the resistance across C104/C107 is much lower in the bad board vs. good board. 24K vs. 1+M Ohms respectively.
Would love some help here. I don't have enough knowledge to trace it back to the AC voltage and see where I'm losing..
The first 4 photos are real and the last 2 are from Shopjimmy. The schematic has the part # but there are slight differences in the board..
I have found a working board, trying to figure what's wrong with the bad one. I've compared all resistors and diodes in the area against the working one. Everything seems good.
The one thing I've found is the resistance across C104/C107 is much lower in the bad board vs. good board. 24K vs. 1+M Ohms respectively.
Would love some help here. I don't have enough knowledge to trace it back to the AC voltage and see where I'm losing..
The first 4 photos are real and the last 2 are from Shopjimmy. The schematic has the part # but there are slight differences in the board..
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