Onkyo RZ840 dead. Not turning on

There is a RZ820 service manual on HiFi engine website. Rz820 may similiar with RZ840 on the control section.

Couple weeks ago, I fix a Sony AV receiver which was total dead no display and can't turn on/off. After checking the power supply of system IC, I found the voltage is worng then I found a crack on the trace and fix it.

I think that may a good idea to check the SMPS moudle for 12V output and the following reg. ICs have the match voltage.

Good luck
 
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This thing looks like it was designed by a child.
I will also look at the small smps card, it remains constantly under tension and degrades faster than the rest.

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