Television and Home Theater

all of a sudden, the picture on my projection tv has gone bad
there is a blue color bow near the bottom of the screen
the 3 primary colors of the wordings and images split up on the screen,
any help please, what's wrong with the tv ?

need the tv schematic.

I have a WS 65613.  Having trouble powering up the set.  Once it does power up, the format size changes through all of the options, ie zoom, wide, 4:3 etc.  It just constantly spools all of the different options.  Volume control also quits working during this period.  If device menu is chosen, it spools through those choices as well.  It has a mind of its own.

Any idea of what is causing this, and a possible cure?

Thanks,

Pat

Hello, as my header states, I have a Mitsubishi VS-50502 rear projection television. After the tv is on for a while, perhaps a half hour, the picture shuts off. The green LED stays on. After a while it seems to cool off and will work properly again. Then, after a while, it will shut off again.

 I have unplugged the tv for many hours and the problem still persists.