Television and Home Theater

Yesterday my tv was turning off by itself every five minutes . . . and now it won't turn on at all.  Power from the wall is working otherwise.

I did the error code check last night, and received code 22 - however now I can't even get an error code!

Is this something I can fix myself?

larry - I see you have helped several people with similar issues - my email address is [email protected] if you have documentaion that might help me out.

I am getting the green flashing light I tried resetting it but that did not work.  So can some one explain to how to replace the copacitors. Are should I have a pro come in and do it although if explained properly I am sure that i can do it.

Thank you 

It seems to be tempermental, meaning certain days it is just fine and others it does this flickering. It flickers blue lines and sometimes the whole screen will flash blue and on a rare occasion the tv will turn off. When it turns off, I'm pretty sure the light blinks 7 times. I did notice while I had the front covers off that when it flickers, an orange light flashes on the board of one of the three hanging tubes(sorry for not know what they were called). Haven't been able to find anyone else with this specific problem so I hoped that someone here could help.