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not so sure if warped lines about it not being convergence, if the lines are diagonal and light red etc it may be a screen circuit issue. Hard to tell from description----take a few good photos and post them on a free photo sharing site and provide a link here---expert who sees what it looks like may be able to help...............
What media device are you using and how is it connected?
If its an external device (that is your not using a built in blu ray player or such) and your using compost video (it should be three wires for video, blue, green, and red) check the red wire on both ends. Most of the time this is the problem.
If your using a HDMI cable, or the above does not fix the problem, try replacing the cable.
If its only a slight tinting there should be a setting on your tv for fixing it. (Usualy named Tint)
I've had this problem with my projection TV recently. I would say your lens/lamp is to blame. It might be time to change it, depends on the last time it was changed, most of the time, the TV will tell you that it needs to be changed, but not always. I think your best bet is the TV lamp.
The screen control setting may need to be adjusted - the screen contol is a service adjustment and is located internal to the TV. If you turn the TV to a blank channel or video input with nothing connected is the prevailing color red? if so adjusting the screen control may help.You would have to take off the front panel and remove the covering- let me know if you want to go ahead and I'll guide you further - caution since high voltage is present in this area.
Roger, if your contrast (sometimes called picture) and brightness controls are at max you can increase the tubes brightness by turning the "screen control" clockwise, be advised a little turn goes a long ways, don`t crank it too far or you will get retrace lines, you will have to remove the back from the set and follow the red wire down from the tube to the "flyback transformer" on the front of the flyback are 2 controls, focus and screen, do not move the focus control, this should fix your problem.