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Toshiba theatreview While the set was on, it "popped" and the picture went dark, with a red horizontal line across the screen a little below the mid point.  The line appears to be four or five thin lines close to each other.  For about two weeks prior to this, the picture had occasionally had red "ghost" images. The erroneous red images began appearing when the cable company installed a new converter box with DVR.  We thought the box was faulty.  The connection to the coax cable was broken out of the back of the case during this installation.  The new box does not use the coax.

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marco amezcua

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

Posted on Nov 03, 2007

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Our set was purchased in 2001. In the last month we've seen a narrow band (2") of parallel, "rippling" lines appear horizontally across the screen, just above mid screen. At first they...


Hello
You are saying about vertical retrace lines. Thes lines will be thin and spread all over the screen at about 1 inch aprat or so, little slanted in position. There are mainly two reasons for this fault. One is vertical output Ic and its supply related. Second is related with increase in screen voltage.
You just open your TV,and adjust the screen voltage a little less, by the help of screen voltage adjuster reistor. It can be located on the picture tube base card, diretly soldered to it. If it helps no need to do anything. After adjusting the scren voltage, increse the brightness contol a little and see whether the lines are there or not. If not it is ok. If yes, you have to go to the vertical output section of your tv. Any screen voltage adjustment should be done after decresing the brightness, contrast and colour controls to its minimum. At this condition you will only see the display items only. Screen voltage is so much related to picture clarity. It must be done in a dark circustace.
If it doesn't help, that is even after the lines are there when you increase the brightness, locate the vertical output section of your TV. It will be normally on the main board, and there will be an ic for amplifying vertical sweep signals. If its supply voltage has some trouble, this type of fault may occur. As your Tv is abot ten years of age, it is quite natural, that most of the capacitors has gone value detained. It is best for you to change all the capacitors, at about 14 nos of them at the same time, as it will cost not much. Change all the capacitors around the vertical output ic is best, as you can't measure the exact value of capacitors, without a capacitance measuring meter. Also look for any bad, or loose soldering is ther to the pins of the vertical Ic. Resolder all the points around and with it by applying a little more solder. This will retify your problem. Ok

Nov 09, 2010 | Sony KV-27FS16 27" TV

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Color lines out of focus


Best Solution posted on Apr 12, 2008 Asker's Rating 3%20stars_w.png
dc2eb76.jpg MikeNJ1964
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You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.
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MikeNJ1964 was exactly right! I have a Sony KP-65WV600 that had horizontal green lines that showed when the picture was darker. I had to remove 3 screws on the right and left side of the tv holding in the speakers...carefully pop out the middle panel from the clips holding it in....remove 4 screws from the cardboard in the middle and remove the cardboard. I then saw the six screws. The adjustment screws were the three below. I turned the middle screw until the lines dissapeared. I tried the left screw and blue lines appeared which I then adjusted away.
THANKS a bunch. SAVED me money!!!

May 15, 2009 | Sony KP-65WV600 65" Rear Projection...

3 Answers

Horizontal white lines across top of TV screen


Hi I had the same problem. Broken white lines across the top of the screen. This is called overscan. You need to go into the Setup menu, other settings. 16:9 overscan needs to be on. Hope this helps.It solved our problem.

Sep 15, 2008 | Panasonic CT-2006S 20" TV

1 Answer

Thin red horizontal lines appear when viewing a dark background


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.

Jul 26, 2008 | Sony KP-51WS510 51" Rear Projection...

2 Answers

Curved blue lines on screen.


You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.

Apr 11, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Hitachi 51GWX Scrambled Picture


STK392-560 STKS convergence CHIPs Replace both of them.

Feb 24, 2008 | Hitachi 51GWX20B 51" Rear Projection...

1 Answer

Strong red tint with horizontal lines across screen


if you have warrenty, return it. if not, then buya new one...the video fuses are dying...hard to fix it.

Oct 06, 2007 | Akai PT4799HD Rear Projection Television

2 Answers

Horizontal 'pinstripe' lines on all channels


sound like the screen control on the flyback is set just a little too high. the flyback has the red wire attached to the tube. the flyback has 2 small adjustable controls. if you look close enough 1 is marked focus & on is screen. turn the screen slightly to the left & look at your picture. the screen is like a master brightness & if it's up too high you will see what is called retrace lines. good luck.

Jan 16, 2007 | Daewoo DTQ-20N3FC 20" TV

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