I am slightly skilled at calibrating TV's. I have the Colorfacts Pro and Sencore equipment I'm using for about a year now. I have the picture the way I want it so far on my XBR4, but is there any more tweaks I can do with the Service menu? I know the code to get in it, but don't know if there is any tweaks I can do in it. Will the Service manual for the XBR4 have anything more to add or guide me to calibrating it more? Anyone have one I can borrow? ;-):rolleyes:

I am slightly skilled at calibrating TV's. I have the Colorfacts Pro and Sencore equipment I'm using for about a year now. I have the picture the way I want it so far on my XBR4, but is there any more tweaks I can do with the Service menu? I know the code to get in it, but don't know if there is any tweaks I can do in it. Will the Service manual for the XBR4 have anything more to add or guide me to calibrating it more? Anyone have one I can borrow? ;-):rolleyes:

The service manual for the XBR2 has NOTHING - literally NOTHING about the service menu in it. So I would take that as a warning that the XBR4 manual might be the same.

Your calibration for that set is pretty straight forward. If you have multiple gamma settings you can access in the User Menu, measure each gray scale and pick the one closest to 2.4. Personally, I find 2.2 gamma looks too "flat" on most displays and 2.4 makes images considerably more dimensional without looking too contrasty. ColorFacts Pro lets you set a "reference" gamma curve that appears in the graph each time you measure gamma. So if you set it to 2.4 you can see how far or close each of the user gamma settings is from the 2.4 curve.

As you scroll through various service manu settings, you may see some labeled UGAM in both the WB and WEM menus... I can't see ANY of those having anything to do with Gamma settings - so their name appears to be a red herring (at least they don't do anything for Gamma in the XBR2 sets).