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the lines may twist inside the screen if the flyback in not performing with the twisted lines for the pincushion transformer because some of the circuits on the convergence gets its voltage from the horizontal pulses. if the hv is not working right it will never convergence to adjusted right. you have to repair the main large issues because it all interacts with each other. even the vertical in most sets gets it power from the boost off the flyback so if thats low even if the convergence board gets it power from the vert out transformer it wont be right.
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