Question about Panasonic PT-51G44 51" Rear Projection Television

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Low contrast, adjusting contrast control has no affect. the bar does move back and forth. replaced caps around video procesor ic, also replaced an5165k ic.appreciate any suggestions thanks clinton.

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You'll probably need a service manual for this one. You will have to check to see if the microprocessor is changing the voltage levels to the video IC as the problem could be with the CPU as long as the screen voltages are not out of whack at the CRT's or that they are bad.

Posted on Jan 28, 2007

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Posted on Jan 02, 2017

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1 Answer

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1 Answer

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Hi there

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1 Answer

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*The brightness control setting determines how bright your picture will be. *The contrast control sets the gain of the video circuit. This determines the difference between dark and light scenes. Low contrast settings make the picture "hazy". High contrast settings make the picture more distinction between dark and light scenes. *The sharpness control determine the frequency response of the video circiut. High sharpness settings give better resolution but also shows more noise in your picture. Lower sharpness settings smoothe out the picture removing noise but also fine detail. It needs to be set for the best all around picture. *Picture Enhancement is pre-set adjustments which give you different picture qualities. You just select the one you like. Stargazer

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