Question about Samsung HP-R4272 42 in. Plasma HDTV
I have a "new" (I believe it was a store demo model for about 2 months) Samsung HPR4272. After approximately 30 minutes of a movie (I have tried Hi Def, regular dvd's, and OTA TV through HDMI, S-video, RCA, and Component connections) the picture starts to pixilate and get grainy at the top of the screen and gradually increases throughout the picture.
At first I thought it was a bad spot on the DVD as it seemed like the resolution was just bad (blurry edges and so on). Then I noticed it throughout the top of the screen gradually working its way down. It is most noticeable on white as it seems like the rgb don't line up and the resolution appears to be terrible.
I have tried placing a box fan directly behind the TV and that did not seem to help (I thought it seemed like an overheating problem).
Any thoughts are greatly appreciated.
Would that be on the DIGITAL VIDEO BOARD?
If I were to replace one of the boards to fix the problem, which board?
Posted on Aug 25, 2009
You can adjust the v_set and the v_scan voltages anout 15 vdc lower.(they are on a little board to thr right of the power supply board) this has a good chance of correcting the problem.if not then the panel itself is bad..this set had a 2 year warranty, and even if it was a demo with your bill of sale you should have no problems with having it repaired. if you have no bill of sale and cant get one..be carefule as there is dangerous voltage in a tv set
Posted on Dec 01, 2007
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Posted on Jan 02, 2017
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