This model uses two of the STK-392-110 convergence chips--both along with any bad resistors around them are going to need to be replaced and the set adjusted.
If you can do the repair you can buy a pair of the chips on Ebay for less than 14 dollars plus shipping.
If you cannot do the repair shop around your area as most shops charge 300 or more for this type of repair.
If the set will not adjust in the customer menu one or both chips are bad---BOTH need to be replaced.
If you know how to solder or know someone who can do it for you--I can describe in general terms what you will need to do for this repair.
If you have any questions or need advice, let me know as I do this here for free.
SD TECH
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