I had noticed your question before posting mine, since it appears no one had given you a solution thought i would share the solution given to me. Two different techs told me the same thing it would need a new convergence board. I ordered my board today hopefully have fixed soon as it arrives. I noticed your question has been hear awhile but thought maybe if you still needed some help I would share. It is going to save me $300 doing it myself, but if you are going to try make sure to talk to one of the techs first on live chat. Goodluck
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It seems problem with convergence output section in tv, check convergence two output ICs and replace them to fix the picture issue. If you have electronics knowledge and parts replacement experience in circuit boards then can attempt by yourself or ask local tv repair shop to help you.
Good Day, kizzysep;
Curved picture, this indicates that you have a convergence circuit that has failed, if your TV is a rear projection. I would recommend that you contact an Authorized Service Center for your TV and have them give an estimate before repair.
Depending on the age of your TV it might be wiser to buy a new TV, but get an estimate first.
Good Luck, big IRISH.
This sounds like your convergence correction amplifiers have malfunctioned. These Integrated Circuits often burn out after a few years (STK392-110) they can be replaced with a higher version (STK392-150) However it is important to have the biasing circuitry checked to make sure nothing has burnt out as a result of the ICs malfunctioning. If you have a background in electronics you can repair this problem with very little effort, however if you do not have a background in electronics, I would suggest that you have your TV serviced by a qualified TV technician.