My DMR-ES10S is completely dead, no lights or anything. Power is getting into the machine and the fuse is good. I think the unit is out of warrantee.
If unplugging it and re-plugging doesn't get it back, then it's dead. Power supply problems seem to be common with all DVD recorders. Probably not worth fixing it.
I for one would not be so quick to trash it. Power supplies can be repaired. Get a meter and check to see if there is any output from the power supply, test the power switch.