Just got back, I think it is the projector, something with the HDMI circuitry. Component and S-Video work fine, but both HDMI 1 and 2 ports, nothing, nada, zilch.
He said the night it happened
it was storming pretty bad, and I guess there was a loud clap of thunder right at the time it happened. When the Sanyo's don't detect an input, they go to a default blue screen, and start a count down to shut off. He said he had just started a movie, and the projector jumped to the blue screen at the same time the heater shut off.
He ran upstairs and his wife said she thought the lighting had to be pretty close as there was no delay waiting for the thunder clap.
It is strange that everything else is working fine on all his components, it appears he just lost the HDMI input circuitry.
I may take one of my flat panel computer monitors over later tonight that has HDMI inputs. If we get a signal I'll know it is the projector. Good thing Sanyo has 3 year warranties.