Nec PX-42VM5A Dead from Standby

[Electronic M]

I've had caps die from months standby in VCRs...I've also had LCD sets where a cap died and it would get half way through displayin the startup animation and fall flat on their face and not boot again till an extended unplug....

Caps can be spooky in that they can be j-u-s-t mediocre enough to sorta work a bit, and come back to life under odd circumstances...like say plugging it in after a week or three.

[MIPS]

I'm gonna lean towards that as well.
At work I unearthed another NEC panel of the same make and model (we use them a lot...or we used to) that came in for recycling and behold, exact same fault. The good news is that I got a second machine I can salvage a power supply and driver boards from, assuming it is only a capacitor swap that is needed.