Mitsubishi VS-50603 50" Rear Projection Television "reset button adjustable bed" Questions

...BUTTON TO SELECT "E2 RESET" AND PRESS "QV". IF THIS IS NOT RESOLVED BY THE E2 RESET REPLACE THE EEPROM, IC701 PART # 275P163010. THE E2 RESET IS ALSO NECESSARY AFTER REPLACEMENT OF IC701. Good Luck, ...

...button. Picture quality did NOT seem diminished in any way prior to the failure. I'm thinking a fuse or the like but can't tell where they are. Or the power supply to the 3 tubes is out? Or? This is ...