Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Samsung HC-P4752w I was watching TV when TV got really, really loud, picture distorted, then went off.....Tried turning it back on and it came on for about 5 seconds then off again.....I cannot turn it on using the remote or the button.....i moved the plug to another outlet - still does not come one.....

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If you have any electronic background, the best thing to try first with this TV set would be to locate the convergence board and unplug the power plugs going to the board. Try then to turn on the TV set, and if it does turn on, turn it off right away! That will tell you that the convergence board is shorted and causing your problem. If the set still will not turn on you will need to trouble shoot the power supply board. If you have no electronic circuit board experience, this is not the job for you to attempt, play it safe and call in a trained tech. good Luck

Posted on Jun 26, 2007

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1 Answer

Picture is black and white


Does it sound like thin grinding noise?
The color wheel is very common problem. Color wheel for this model is about $100 to $150 plus labor.

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The blue tube will cost $150-$200 from a Samsung parts distributor. Keep watching Ebay. Did you change the coolant by any chance? The coolant fogs really bad on the blue tube on this model and it looks like a bad CRT.

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Nov 02, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

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1 Answer

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the convergance amps have failed you need to have them replaced there are 2 of them and some resistors may be affected. the cost of this repair can reach $350.00 depending on the tech you get. this is the most common failure in rear projection TVs. the convergance amps work very hard and are bound to fail. they also have very large heat sinks to keep them cool. heat is the biggest enemy of transistorized ICs.

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Similar problem, then about 2 weeks later the SD convergence went out. Changes convergence Amps,,, Now I'm trying to learn what 2 red flashes mean now when I try to power it up,,, it flashes twice then shut down into standby mode,,, I got no picture after installing STK392-040 chips, thinking about trying another set as atleast I had blury picture before. No solder shorts of opens that I can find. TV has always been a pain,,, locking up once in a while such that you can't change modes,,,

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1 Answer

T.V. blurred then died


You will need to replace or have the main convergence amp board replaced or have the main amp ICs replaced. i you have no electronic experience with printed circuit boards, play it safe and call in a pro to assist you with this repair. Good Luck

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