SOURCE: Blank vertical lines are appearing on the screen.
Hi, and sorry for my english !
Maybe the LCD driver voltage is wrong or noisy. I had the same problem: some vertical lines (not constant), pulsing contrast after powerup, pixel crosstalk, sometimes no screen
Solution: Try to replace the LCD power negative voltage buffer capacitor.
In my hardware version it is in the middle of the two T6B07 column driver IC (U3&U4) on the right side. Colored black, electrolytic type and the Value is : 10uF/25V. Chage it to around the same type.
There is enought space, so you can use a small sized non smd type capacitor. Be care of the polarity.
I hope it will help... ;)
Greetings from Hungary!
The T'Con board should be suspected. This is a common fault to most brand of LCD TVs. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to see the latest updates. It will make search easy. There are more than 1350 posts to different brand TVs now. Pull up older posts there.
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