Sounds like the usual heat issues. Diagnosis fees in my town are 80 bucks, 500 is for a new TV.
Hello. I have a Samsung DLP LED TV, model HLT5687sx. I have been experiencing issues with the screen going out. Specifically, sometimes the screen just completely goes black. When this happens, none of the lights in the front flash or blink. When it's running normally, none of the lights in the front are flashing either. I'll turn the TV off and sometimes the picture goes on fine for a minute then goes out again. Sometimes it will run fine for the rest of the night, only to have the same issue happen again the next day. Some days are worse than others. I'll turn the tv on and off 4 to 6 times until the video stays on for the rest of the night. Also, sometimes when I turn the tv on, instead of the picture going completely out, I'll get red and green static. Sometimes it's more red, sometimes more green. I've looked up multiple forums and it appears there is no bulb to replace on this tv. I also opened the back panel area and there is no clear bulb or light source to be replaced (unless it's behind all the circuitry). I really want to avoid paying $500+ only to find out it's not worth repairing. I can't find people with similar issues so I am lost as to what may need to be replaced. Any help would be great!