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Lcd tv my lcd tv loses the picture it will go black with colored horizontal lines but the sound is fine

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Re: lcd tv

What is the make and model number of your set? I may b able to help you. desribe in more detail is the picture gone entirely and you only see colored horizontal lines on ablack screen?

Posted on Jan 22, 2008

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How do you tune in the toshiba quadryl tv. you can hear the sound perfectly but cannot get a picture. just horizontal line across black screen .

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Apr 28, 2011 | Toshiba Projection Televisions

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The convergence board is shot you going to need a new board as the horizontal ic's have given out. Reapiring this would take expertise and cost you more then its worth then just get a new convergence board. Thanks and please do rate.

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Sony 65" Rear Projection loses picture, then gets diagonal lines

This is common problem on this tv, picture tube is bad. Blue and green is more % bad.
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Aug 07, 2009 | Hitachi 51F59 51" HDTV Projection...

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Green horizontal lines on screen no picture

The green CRT's (color picutre tube or color wheel, or ballast) will need to be tested for replacement.
It is quite common with these tv's

You will need an ohmmeter and or voltmeter and test each component for currency and accuracy

May 06, 2009 | Mitsubishi WD-52525 52" 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.
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Dec 13, 2008 | Sony KP-51WS500 51" Rear Projection...

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Picture Problems: Snow, color, lines

The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png

Sep 23, 2008 | Sony KP-53XBR200 53" Rear Projection...

1 Answer

Tv has no pic but has sound

Does it stay black after you turn it on?
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Jul 02, 2008 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

No picture

Same problem, worked fine this morning and then tonight I million green horizontal bars - sound is fine. I think from reading up on this we are doomed. I am so pissed, the TV is not even 2 years old.

Oct 01, 2007 | Mitsubishi WD-52525 52" Rear Projection...

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Hitachi 62VS69 LCD Rear projection TV

It sound to me like a defective light engine. If so this is a very expensive repair if you set not under warranty or a service contract. This could have been damaged by a power surge.

Aug 14, 2007 | Hitachi 62VS69 62" HDTV

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