Question about Mitsubishi WS-55819 55" Rear Projection Television

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Screen seems to have convex curves at the top and bottom of the screen. had it repaired once 3 years later the same thing. took the tech that came to the house said the heat expands the connections on the main board then contracts when you turn the tv off. 15 minutes to solder some points on the mother board good as new again. is this right? can it be that simple or is it something he's not telling me? Getting ready to call him again.

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If it is convergence and was soldered once--it will most likely need the convergence chips replaced--this model uses two STK-392-570 chips----even if bad soldering was the first problem based on the fact that the set is a 2001 model--should have just replaced the chips then as the amount of work to get at them to solder is the same as changing them--if the chips are replaced the set should be good for 5-8 years--not 3 years.

Let me know if you have questions or need advice.

SD TECH

Posted on Sep 26, 2009

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