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That is not a vertical roll from side to side, this is a horizontal rolling. if the vertical had a roll it would be going from top to bottom. This is most likely a coupling between the horizontal sync circuit and the sync separator circuit. Good Luck
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Remove the LVDS connector. clean and replace, then the flat ribbon cables going from tcon to panel. If that doesn't help you most likely have a bad panel, you can replace the tcon but I don't think it will help
There is a capacitor in the vertical circuit that has significantly changed value causing this. If you are familiar with these units, look for a capacitor with the value of around 100ufd that is part of the vertical circuit and change it. That should resolve it. If you bring this to a shop, expect a parts cost up to $10.
The problem may be related to bad capacitors on the PIP module. This is a commom fault as vertical sync runs through the PIP board and this is the symptom of the pip board having bad capacitors the TV rolls.
If the picture rolls while both on cable as well as when you playback a tape or DVD, it could be caused by a bad filter capacitor in the power supply or vertical deflection circuits. If it only rolls while trying to view a picture from a cable/satellite box, then that component is likely at fault.
is this a horizontal black line going up or down? if yes, this sympton is caused by a trouble in the integrated circuit or in the vertical oscillator circuit.
this symptons has 2 variations. one is the intermittent rolling of the picture. this referred to as the "loose vertical hold" the other variations is the continuous upward or downward rolling of the picture