How do you adjust the vertical lines going across my screen?

Green lines on LCD screens generally means physical damage. Did you drop it or bump it by chance? Physical could also include the cable that you are using. Try using a different cable, or make sure it is connected all the way.


Wasatch Techies Smartphone Tablet and Computer Repair in Utah

Hi I can try soling your problems

If the vertical of the tv moves when it is that old that is your first warning sign. All electronics need their electrolytic capacitors replaced (especially the small ones). Not replacing them will cause a catastrophic failure. The next sign you will receive is when you have lines every half inch across your screen. Or the next sign will be losing your vertical entirely until all you have is a line. Then everything will go poof till only a standby power light will show. Pressing buttons in a secret pattern to get into the service mode will not fix failing.

There are two reasons for this fault. A fault smoothing capacitor at the video output voltage rail, or excess of screen voltage. These lines are called 'vertical retrace lines' technically. Check this link for more details. It has a post, which have information regarding this fault. Go to older posts there.

The screen voltage to the picture tube is more than normal. Adjust it by the help of screen pot-meter integrated with Line Output Transformer. Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy.

Your reference to across the screen to me means horizontal. Check the bias on the video drive, there may be a potentiometer on the board to adjust. The new parts may have picked up the drive, turn it down if possible.

first try to reset the settings to factory default. if that doesn't work, you have a main board issue.

Try changing the H/V position in the TV Set Up menu. You can adjust the horizontal and vertical position of the screen and move it enough that the green line disappears from the screen.

if these lines are just at the top of the picture then i would suspect an electrolytic capacitor in the vertical circuit.

you have done said it vertical lines then you will have to take your tv to a tech for repairs.good luck.