Thank you for the suggestion

The TV itself does not turn on at all and my eletronics teacher believes it to be the 5 volt regulator and i just didn't know where it was at because we don't have a schematic for it. So yea right now the tv does not even turn on and my teacher can't be completely sure what the problem is until we can fix the 5 volt problem so thank you for your suggestion and i will try it here in the next couple of days when i get back to school to where the tv is at.