52 in RCA

Power board. Find honest TV tech.

Replace your LAMP if all of your Fans are running! If lamp fan is not running Lamp will not turn on .Call FOX for Lamp 1-800-227-5369

I'd check the lamp first. No apparent reason to suspect the power supply, unless you didn't mention other symptoms

It has you Posted as a projection TV and Not DLP, if Fan to Lamp stops running set will shut off to protect Lamp,I had a DLP that would play sometimes 30 mins then shut off drove me crazy trying to firgure it out and it turn out to be Fan would stop running I replaced Fan TV working fine . When you remove back engage toggler switch to up position put a piece of tape on it to hold it is a safty switch ,then turn tv on watch to see if all fans are running also if when tv trys to come on is there a spark coming from Ballast Board if so your new Lamp is defective it does happen if not your ballast board maybe Bad it is what turns on Lamp.If all fans are running Ballast Board.

WHAT ISTHAT WHEN MY TV MAKE NOISES THEN STOP FOR AMINUTE ONCE THE PICTURE IS THER THEN 10 MINUTES IS CUTOFF LIKE ITS TRYING TO COME BACK ON WITH THE SAME NOISES

if you heard a hissing or like static sound your board probably has a hole in it now. the board on the left side with the flyback fransformer. the hole is from where a prong has come loose an is arking over an it burns the board the ark is the sound you heard.

This can be a green crt or green driver pcb problem. You can try and unplug the tv for 30 min. and plug it back in and turn it on, but the problem will most likly still be there. A repair shop will need to fix it from there.

you have mention that after 10-15 seconds T.V starts up, will you give total description of the T.V within that 10-15 seconds?

If you are saying the picture comes on red and then the tv turns off?
I would suspect the video ic on the red picture tube pc board has shorted out.
This is a pretty common problem

Sound
Sounds like your bulb is nearing the end of its life span you will be needing a new bulb soon.