Question about Samsung SPN4235 42 in. Plasma HDTV

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Samsung spn4235 plasma tv

Getting some little dots like the matrix coming from the top of the screen the dots are blue

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  • Frenchy1 Jan 07, 2008

    I get a color bleed thru and it is always blue. This occurs in the upper right hand corner of the display. It happens when I watch DVD's and when I watch cable.

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The set will need some screen voltages adjusted on the power supply board, the VS voltage is marked on the panel inside the set, find the VS test point and the VS adjustment potentiometer. adjust the voltage down at least 10 volts, if your not an experienced person in electronics, get a person that is, there is a high voltage on that board that is dangerous

Posted on Mar 25, 2007

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Posted on Jan 02, 2017

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Hi have a samsung 42 inch plasma, all of a sudden it has a band 20cm wide of dotted lines going across the whole screen, some channels or when playstation in use the band gets wider, does not seem to...


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if the tv has a vertical lines from top to bottom it may have bad plasma panel and can be considered as not economical to repair.

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