Question about Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV

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Re: HORIZONTAL BLUE LINES - Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV Projection Televisions

You will probably need a blue picture tube

Posted on Jan 11, 2008

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Older big screen hitachi w/pip tube tv and has blue lines across the screen turn off on it own sometimes.

It could be time to retire the TV.
The blue almost horizontal lines are probably a fault in the flyback blanking and the fact that it will turn itself off is likely due to a poor solder joint on a circuit board inside.

Jun 26, 2016 | Hitachi Projection Televisions

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My Ultravision TV is now having horizontal lines. Do not know if it has a horizontal hold button hidden somewhere or is the TV going out? Can I fix it myself. Large screen

Can you try and see if it is your source that has the lines or the actuall TV that has the horizontal lines.
What is your source? Direct TV, Cable TV or even off air Digital TV.
If you remove your source do you still get the horizontal lines? If you do then what colors are they? Seems if when you remove your source input and you still have these H-lines then you have issues with your individual LCD palets. Especially if they are just Green, Red or Blue?

Nov 07, 2014 | Hitachi UltraVision CineForm 55VG825 55"...

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Tv turns off and on by itself. when turned off, it shows bands/lines of color. what could be the problem?

high voltage regulation problem. when high voltage gets too high protection circit kicks in and shuts off tv. since high voltage is too high, you will see a glow with horizontal retrace lines. if you see red, green, and blue lines your convergence ic's are overheating. suggest local service center

Nov 10, 2009 | Projection Televisions

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Blue Horizontal arching lines, Blue hue at power on

if you take the front cover off the tv, you will see 6 little nobe, the top 3 are focus, bottom 3 are brightness, should be RED-BLUE-GREEN in order from left to right, find the one that is blue, turn it down a quarter turn, should fix the problem

Dec 31, 2008 | Sony KP-46WT500 46" Rear Projection...

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Very fine blue lines veiwable when the background has black in it

You need to adjust (actually bit decrease) G2 volts (calls Screen volts) of Blue gun.
If you are familiar with big TV repair and have electronics knowledge then let me know to guide you further.
thank you.

Dec 13, 2008 | Sony KP-51WS500 51" Rear Projection...

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Mitsubishi #VS-45605

We had a blue cone on the screen. We have adjusted the sharpness, contrast, and cross hairs. The cone has almost completely disappeared, but we still have blue shadows. Could this mean a blown color tube?

Any suggestions would be greatly appreciated.

Aug 13, 2008 | Mitsubishi VS-45605 50" Rear Projection...

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Flashing Horizontal, Circuluar, Colored Lines

sounds like bad capacitors on the FMT board need replacing that is a common fault with the first generation DLPs There are 3 bad capacitors.

May 31, 2008 | Mitsubishi WD-52525 52" Rear Projection...

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