Question about Toshiba 32AF41 32" TV

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I have a 32af41. Green horizontal retrace lines show up on screen then it faint at first then more and more apparent then it flashes green and turns off. I can only turn it back on by unplugging the tv from the outlet then plugging it back in. Happens randomly.

Posted by mjmroue on

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Azrael SRL

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These are caused by the ageing of the tube and the final video transistor for the green cathode - the cutout voltage on the final video board is no longer doing its job as the tube heats up so the current passing thru the tube goes up until the X-Ray protection kicks in and cuts the power completely.
Resolder all the components on the video board and try to readjust the cutout voltage - there's a semiadjustable resistor on the video board, right next to the video power transistor - this will give you a few more months of use.

Posted on Apr 23, 2011

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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!!!

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