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RokuTv - Change to a smaller screen size.

Hi all, as the title states I need to adjust the display settings on the roku operating system.


I purchased a TV (sharp 55fl1k) that arrived with a damaged display.


I got a refund and asked to bin it. So I salvaged anything useful from it.


Since then i have fitted this board onto a 50" display tv.


Now the issue I'm having is the display is all whacked up. Double overlay and separated lines.


I'm aware this is a resolution issue as I have dealt with the same problem when changing the old vestel boards.


So is there any advanced settings that will allow me to change from 55" to my desired screen resolution?




Any help would be greatly appreciated. 


Thank you!




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