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Old 01-03-2018, 11:48 AM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,758
Sam's usually has a proceedure for the horizontal. The vertical is not so much step by step as it is mess with height lin and centering simultaneously for best results....One thing you could try is pulling the vert sweep tube with brightnessat min so the line don't burn the screen vertically center the line then plug the tube back in and try to get height and lin dead on.

If you can't get vert linearity right with the screen filled/overfilled something is wrong with the circuits.

Monochrome sets were designed to have signifficant overscan (underscan = warranty complaint=lost profit) to compensate for fluctuations in house hold voltage and unregulated B+ supplies. So don't bother trying to get overscan down....Fighting the design limits is not a good practice.
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