My viore rpt50v24dx/sms turns on for about 15 sec then the screen goes black and the stand by light, the timer light, and the lamp light all start blinking then it shuts off, what is wrong with it?

Here is a couple of links that may help. If not get back to us. Anyway it comes out, let us know,please. You might want to check for a fan and maybe a filter and/or heavy dust inside. This smacks of a heat problem.
www.justanswer.com
and this one - This is the fan one, meant to put it first -
www.justanswer.com If these don't help, give us, please, more information. How old, how big, are there any options on it? That stuff. Thanks, let us know.