Finally, TV was repaired!

Repired, then damaged again, repeatly…

The issue is not only the psu capacitors, the CPU is also reseted. This problem confused me a lot. On the reference schematic (same chassis, but different model), only a capacitor and a resister are connected to cpu reset pin. Even after cut-off these two components, the reset pin was still pull down. I guessed maybe the cpu is wrong.

After the final inspection (almost giveup), I suddenly found there is a new circuit is added to field driving part for protection, which will pull down cpu reset pin to prevent power on.

After checking, the field driver worked well, the only possible reason is the damage of protection circuit (Q40A). The protect line was cut, then everything works well.

I will not try another tv repair, what a pain!