Sony STR-K740P AVR TS&R Help

[puckhead]

Hi All,
I'm trying to avoid tossing my Sony AVR in the garbage. It will not power up at all. I've got a copy of the service manual and a low tech DMM. I removed the case cover, checked the one visible fuse and verified continuity of the AC power cord. I don't know what to check next.
Any suggestions or guidance would be so appreciated.
Thanks