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GE D52gw12 Green light comes on and off 3 times then tv shut self off. No picture or sound comes on nothing, sometimes I hear a high pitched squeal.

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  • jkman4 May 30, 2008

    OK thanks, I can't find a schamtic for tv and not sure were the transistor is, can you point me in the right direction? Also is there a web sit I can get the part at?

  • jkman4 May 31, 2008



    Toshiba C5588 447

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  • 4,234 Answers

The set is shutting down to prevent further damage. There is a problem with the high voltage circuit. The most common failure part is the horizontal output transistor. Figure on $20 or so for parts plus the local labor rate to get the total repair cost.

Dan

Posted on May 30, 2008

  • ABRsvcs May 30, 2008

    Look for a transistor mounted on a heatsink close to the flyback transformer. It is probably marked C5438 or something similar. Post the marking here and I'll give you the complete part number.



    Dan

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ON our GE D52GW12 52" AFTER TURNING TV ON IT


Try resoldering the flyback transformers connections on the board. Its very common for the flyback pins to develope cracks around the pins which can cause that issue. I would check that first with that model.

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The TV will not stay ON long enough for a TV picture. The green light on the ON switch on the TV will be on for about 5-10 seconds and then off for up to 5 seconds and it will do this for 3 times only.


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Ur high voltage FBT the flyback tranformer,a big black block of plastic with a gray wire connected to a board.The cap it dead.The FBT it useally it dead too,arching noise FBT not holding the high voltage.

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Replace CP150 and CP114 and CP120/ You can get the caps with instructions at the following link. They do have a minimum order amount of 10.00 so you may need to order an extra capacitor to total 10.00 but shipping is free. The parts are listed under the RCA parts category,
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The whine or squealing you hear is either the color wheel or fan. To determine which, when the noise is heard from the set, turn it off and listen carefully. If squealing stops immediately then Tthe fault is the color wheel, not the fan. And sounds like that are generally the color wheel. A new color wheel is Samsung p/n# BP96-00250A for this model. Vance Baldwin carries them for $97.20 plus shipping. https://www.vancebaldwin.com Logon as guest, select parts and copy past the above part number in without any dashes. Good luck... Bill

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