Forgot to mention that with all the part changes above it still behaves the same. It is also worth mentioning that the PCB has moderately discolored under and around T605 (TRANSFORMER, FERRITE(SBT)) but the copper traces are in good shape. Most of the component that I changed were in this area of the board. Although T605 itself does not seem damaged/burnt out, but I thought I change it anyway. I tried hard but could not find a replacement for T605 (142358221 or 142358211).

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