Question about Sony KP-51WS510 51" Rear Projection HDTV-Ready Television

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Thin red horizontal lines appear when viewing a dark background

I see thin red lines across my screen when viewing a dark scene. They are slightly curved and are horizontal.

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  • orwatsonjr Aug 18, 2008

    It's the same problem - thin red and green lines showing up when the screen shows dark images. I can see the little panel you mentioned from the back of the tv - but how do I get to it from the front, so I can adjust the power levels?

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Look around this sight the answer is explained here. you hace to take off the front speaker cover and a small panal undder it. you will find six knobs on a small panal. use these to adjust the settings fotr the power and they will remove the lines. You will need to have the tv on and I would sugest a normal size phillips head screwdriver not a power tool.

Posted on Jul 30, 2008

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While looking at your TV, remove the bottom right speaker grill. There you will find a cover held by a couple of screws. Remove the screws and behind the cover you will find the "focus pack" which is a group of 6 adjustment screws. The top screws adjust (in order from left to right) the brightness of Red, Green and Blue.

What you will do preferably at night (or with the room dark) turn the top left adjustment screw (Red) all the way to the left and then gradually turn it to the right until the point you can see the retrace line and then turn it slightly to the left until the retrace line disappears. That's it! You can do this for all three colors - if need be. These do go out of adjustment every now and then. The 3 screws on the bottom are to focus the colors individually to minimize "bloom" on the screen. It's best to be in service mode on your TV when doing this OR open up the cabinet and cover (with something) the other 2 colors while you adjust the focus of the color you're adjusting.

Good Luck!

S

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sounds like vertical problem maybe bad solder connections on vertical ic check and get back to me

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