Question about Toshiba 50H72 50" Rear Projection Television

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Picture (video) jumps from bright to dim

Picture will be nice and bright, then suddenly it dims, but not completely black. Basically too dim to watch. "Menu" callup presentation not affected - it does not dim when the picture dims. Tried reseating the video boards and connectors with no effect. Turning set on and off sometimes restores the bright picture, sometimes not. Problem occurs regardless of which input is used (cable, front A/V, rear A/V). Continuous watching never seems to restore the bright picture. Trying to analyze it with the Toshiba print is a nightmare.

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I figured it out myself. R243 was intermittently open. Replaced it, and now we can watch the Super Bowl.

Posted on Jan 29, 2009

  • Robert Hero Aug 22, 2013

    Where the Hell is R243 ??? Which board ?

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