is it possible to do this? i have searched and cannot find any info. my model is sony bravia KDL-46V25L1. thanks for any info.

All of the Sonys I've ever seen either have the grayscale controls in the user menu (this one doesn't) or in the service menu. So, yes, it's possible with service menu access and the right equipment.

yeah, thats kind of what im asking. does anybody know how to get to the service menu?

The Bruzzi service access codes site posted at the top of this forum has all the info you need.