I have a JVC AV-27D302 Tv thats only 3 years old. There are horizantal lines on the top portion of the screen that started out real thin about an 3/4 of an inch and have progressily gotten wider and are slowly extending further down the screen. The picture behind these lines seem to be rolling or flipped upside down....
I have the same problem. What was the answer?
I have the same problem, did you guys find out the problem.
There are capacitors in the vertical drive circuit and the sweep power supply circuit that needs to be replaced. If I had a service manual on this set I would be able to tell you what caps go bad. If your not trained electronic techs, its also not a good idea to be experimenting inside these sets, as they hold high voltage, and can give ya a bit of a shock if your not carefull. Also all the parts are soldered in place so your going to need to know how to unsolder as well as solder or you can ruin the Printed circuit board. Please if you have no experience with TV sets seek out a trained tech to assist you. Good Luck and dont forget to let us know how you made out.
Problem Fixed. (By technician) Only cost $86.00