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RCA M50WH74S Turns off by itself!    
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celtic027



Joined: 07 Jul 2011
Posts: 3
Location: Alliston Ontario Canada

PostPosted: Thu Jul 07, 2011 7:09 am    Post subject: RCA M50WH74S Turns off by itself! Reply with quote

The tv turns off by itself. Is it the power supply or the reflecting board? how to tell and how to fix?
I have tried turning off for a few hours and that works for a while but after a few weeks of that it is doing it more frequently. Confused
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slinteriors



Joined: 05 Apr 2009
Posts: 32
Location: North Carolina

PostPosted: Thu Jul 07, 2011 11:32 am    Post subject: Reply with quote

Your model is a DLP with the ATC351 chassis chances are the AC in board has an issue. You can get the AC IN Board from www.tvrepairworld.com under RCA circuit boards. Does the power indicator flash?If so how many times.
celtic027



Joined: 07 Jul 2011
Posts: 3
Location: Alliston Ontario Canada

PostPosted: Sun Jul 10, 2011 9:31 am    Post subject: Reply with quote

Yes, when it turns off. while I still hear the program on tv, the light flashes 5 times
kuhurdler



Joined: 28 Dec 2006
Posts: 2855
Location: Overland Park, KS

PostPosted: Sun Jul 10, 2011 12:18 pm    Post subject: Reply with quote

Wait. So, it's not turning off, it just has no video?
celtic027



Joined: 07 Jul 2011
Posts: 3
Location: Alliston Ontario Canada

PostPosted: Sun Jul 10, 2011 6:28 pm    Post subject: Reply with quote

Well no I guess it dosn't shut right off, but the picture goes black then the blue light clicks five times, Trying to restart it. then the picture does come back, only to last five minutes. Some times up to two hours.
Sorry for the confusion as you may understand I am relaying this from my wife! lol , it's her T.V.
Thanks very much for your attention to this.
J McCallum
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slinteriors



Joined: 05 Apr 2009
Posts: 32
Location: North Carolina

PostPosted: Mon Jul 11, 2011 8:13 am    Post subject: Reply with quote

the first thing to check would be the LED diode D823 located on the AC IN board and seeing which color it is. That will give you an indication as to the power supply's condition.
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