Question about Toshiba 50HDX82 50" Rear Projection Television

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The picture has 2 separate images, one red and the other is blue/green. This problem happened suddenly.

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If you go into the customer menu and select CONVERGENCE and either red or blue are skewed and will not adjust--you have a convergence circuit problem, if the two convergence chips have never been replaced--they are Q751 & Q752 and are black in color---

About 2 1/2 inches wide X 1 1/2 inches tall and mounted side (ON LARGE METAL HEAT SINKSThe picture has 2 separate images, one red and the - 2_bing.gif WITH FINS) and they will have the STK-392-110 PRINTED ON THEM IN WHITE.

Either one of them is bad, or one of the 1.8 ohm resistors around them is damaged and off value OR you have a problem in the digital convergence unit--it stores and controls all the convergence adjustments.

I suspect based on your description one of the two chips damaged one of the protect resistors---

You can if you are able to do the repair yourself buy a pair of the chips on Ebay for about 12 dollars plus shipping--I do this for a living and have repaired hundreds of sets with convergence problems.

Let me know if you have questions or need advice--I am here to help people.

If this information helped you, rate this solution as I do this here for FREE.

SD TECH

Posted on Nov 20, 2009

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