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On newer TV's, these adjustments are usually made via the service menu. To access this menu, you usually have to have the original remote and the procedure to access the service menu is different from brand to brand. You will usually need the factory service manual for details on how to access the service menu. Usually, the only non-microprocessor controlled adjustments in newer TV's are the focus and master G2 (screen) controls, which are located on the flyback transformer.
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