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Power TV shuts off after 3 to 5 seconds have switched all outlets still 3 to 5 seconds then shut off

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You have a problem with the Deflection board. Those boards are running hot right out of the manufacture. You need a new Deflection. You spend money on that board, its going to go out on you because of the excess of current,or hear. spend between 100 300. for a new board. your better of.

Posted on Dec 04, 2005

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My Seiki SE50FYT TV shuts off after 40 seconds.
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Tv randomly turns off. Not sure if it is overheating or if something is broken.
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Tcl model 21k77
Try turnning your tv off, unplug unit from outlet, press and hold down the power button for 30 seconds, let go of power button, if plugged into surge protector try wall outlet, if plugged into wall outlet try a different outlet, power tv on using power button on tv. Did you have a storm in you're area?
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Jul 24, 2013 • Televison & Video
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Hi, the tv comes on ok for about 15 seconds then goes black and all 3 lamps start blinking. when I try to shut it off it repeats the cycle. I have to unplug it to shut it off

This could be caused by lots of things.

Possible causes that come to mind are.

1. TV is over heating -

2. Power cord not securely plugged in the wall outlet.

3.lamp door cover, which could trigger the auto-shutdown switch - you can fix this on your self by correctly resetting the door cover witch.

4.The power board is Malfunctioning



You may want a local company come out and take a look because it's difficult to pinpoint the cause without looking at it. You can find a local shop google tv repair in google maps, or call 800-SAMSUNG for an authorized technician.

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Mar 15, 2011 • Samsung HLN437W 43" Rear Projection HDTV
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Tv turns on then shuts off in seconds
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Jun 10, 2009 • RCA D52W23 52" HDTV CRT TV
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Power
Possible fault on the power board or panel as the TV seems to shut off on a protection.
Need to investigate on these boards for any physical failure preliminary
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My Seiki SE50FYT TV shuts off after 40 seconds.

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