Question about Sony KP-57WS500 57" Rear Projection Television

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Floating "hair" line across screen always there.

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Yes open the back clean the mirror

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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So I have a 50 Lg ( LG 50LN5700). There is still a picture however about every 3 seconds it goes from regular to blurry and repeats. There seem to be about 3 black lines across the top horizontally about 3...


To clarify, are the 3 black lines horizontal (left to right across entire width of screen)? or are the 3 black lines vertical (top to bottom across entire height of screen)?

Horizontal lines are almost always the result of a failed panel, and no board replacement will fix the issue.

Vertical lines such as you have described (only 3) are probably also a bad panel. If the black lines were evenly spaced in a repeating pattern, it could be a mainboard or TCONN board.

Has this panel been cracked? or perhaps cleaned recently with too much water or cleaning solvent that has gotten the screen wet?

You may have to sell the TV for parts.

Oct 23, 2017 | LG Televison & Video

1 Answer

Dark Screen and Blue Lines Arc Across Background


Hello!!

If the coolant is cloudy or has debris floating in it, the coolant will have to be changed and the lenses and crt face will need to be cleaned. Coolant can be ordered from any electronic distributer

Dec 28, 2007 | Sony KP-57WV700 57" Rear Projection HDTV

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It's a Sony 32 inch flat screen led tv. Has line going across screen about 4 inches from top and faded verticals lines across tv. Anyway to fix that


one of the circuit board needs repairing replacing. I wouldn't recommend trying it yourself even though it wont be too difficult but without electronics knowledge you could end up getting the wrong parts and wasting good money. Parts aren't cheap so get a quote from a repair guy and prepare to replace the TV if it's dear

Jan 11, 2013 | Televison & Video

1 Answer

I have red bars of different widths running horizontally across the screen.


Hi You have a ground loop problem. Rolling shaded bars are the classic sign of a ground loop. Your TV & AV gear are likely not on the same
ground level as the input cable line. The cable line is likely floating
to a different ground. But this is not hard to fix.

Mar 14, 2011 | Samsung HL-R7178W 71" HDTV

1 Answer

I have a Mitsubishi WD-62525. In general the picture is great from all sources (cable, component, and hdmi). However, there occasionally are very thin, horizontal lines that flicker across the screen....


I have seen this problem before. It is usually caused by a malfunctioning color wheel. Replacing it should resolve the problem. Let me know if you wish to fix it yourself so that I can find you a replacement.

Jan 16, 2011 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Mitsubishi & 1080p logo floating across screen


did you ever find the solution? Im having the same issue!

Dec 05, 2009 | Mitsubishi WD-60C9 60" DLP HDTV

1 Answer

No picture.Just a single line in middle of screen.


No, your picture tube is fine. This is a problem in the vertical circuit that deflects the beam up and down. This repair is fairly typical across most television brands and should not cost too much to fix. I don't want to quote another shops pricing but from us this would run about $150.00 to fix.

Oct 07, 2009 | Toshiba CF36G40 36" TV

1 Answer

Hair-strand like clear line running across my acer aspire one


replace the screen or use external screen...matrix is damaged...
or live with it...in 2 years you'll change it anyways



May 18, 2009 | Acer Aspire One Netbook 8.9" Notebook

1 Answer

Problem with tv


Its known as 'screen collapse' and yes it can be fixed but it may not be economical you should get some quotes from your local tv repairers.

Nov 14, 2007 | Televison & Video

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