mitsubishi big screen vs6043

hi im having aroblem with my tv and i have seen articles about what could possibly be wrong with it but i need diagrams. i read i can bypass the pip and solder  the connections but having difficult time without a pic to make sure of what i am doing. can someone help me? the tv has sound but no pic, it comes on then it could be ten minutes or an hour and a half then it shuts off and when i turn it back  on  theres no pic. and used to be if you wait awile it came back on. well the oic went out last night and wont come back. the sound is there.