Question about Sony KP-51HW40 51" Rear Projection Television

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Tv will not stay on only for 1 min. then turns red and off

The tv stays on for 1 minute then the screen turns red and shuts off the stand by button in front blinks e

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Symptoms shows Red Tube is defective and needs replacement.
Please confirm model number with serial to look for Red Tube in stores.
Thank you.

Posted on Dec 17, 2008

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My Zenith 52 inch flat screen will automatically shut off after 1-2 mins of turning it on... why?


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K957ws500 stays on for about 30 minutes then the screen shuts off the light blinks on the display


You have a bad convergence board, or the TV processor has garbage in ti, and if you leave the TV unplugged from the wall, for 40 MIN. that will reset it back to normal. If that don;t work then it is the convergence board, unless if it turns real blue, or green before shutting down, then that color , the screen voltage needs turn down, then it will stay on. Or the red, blue, or green CRT is sorting out, then it is time to buy a new LCD, if it is a bad CRT. for a service call it will run around 70 dollars to find out. Take care.

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Rca projection tv wont stay on but about 1 min then powers off and wont turn back on for about ten minutes then shuts off again after a min or so


Possibility Fan Cooler Issue Check at the back if your hear the fan going if not your fan cooler is burn out .... The Thermistor will shut off the TV automaticly to the unit for Over Heat

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52 inch rear projection tv turns off after a minute


try turning off the auto shut off feature in you set up screens . you can find them through the menu button on your remote. scroll through till you find it and turn it off.

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Red lamp light stays light


I doubt that it is the optical assy. it sounds more like a chassis problem either on the DM or the FMT board.

check out www.tv-techs.com
if it is a chassis problem it will cost about $250.00 plus shipping one way to fix the chassis

Dec 30, 2008 | Mitsubishi WD-62525 62" Rear Projection...

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Could I possibly have a bad flyback transformer


I would try resoldering the flyback connections on the Circuit board. if the flyback was defective it would operate and you usually get 3 blinks on the LED indicator. Sounds more like a solder issue.

Jun 15, 2008 | RCA R52WM24 52" HDTV Projection Television

1 Answer

Sony turns on and off again


My tv too had a blue screen problem. Then it started to shut down after staying on for less than a minute. I thought that I would with a huge repair bill but I followed the directions at this link: http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html and now my tv works perfectly.

Apr 27, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Tv powers on, but turns off after a few min


somone with some sort of tv knowledge told me that sometimes people dont realize t but moisture builds up inside and it needs to be dried back out

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