Question about Hitachi 57SWX20B 57" Rear Projection Television

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Hitachi model 57SWX20B which has a dark screen

I have a Hitachi model 57SWX20B tv which has a "dark" screen that when watching a program that has a night scene, you can hardly see what's going on unless the scene is lighted, then it can be seen okay. I had it fixed years ago when it was under warranty, but I have no idea what they did that brightened up the picture, although I know they messed with the inside of the tv without having to replace any parts, and didn't correct it in the tv menu. Anyone have any ideas of what makes it do this? Thanks

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Loss of brightness could need the mirror and lens cleaned and also the screen.if the tv is over 8 years old then the crts are getting weak.

Posted on Jul 28, 2009

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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

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