Can anyone answer the following:
In the service menu under User you have the following - What do they all control? The ones I didn't find answers for..

80% - RGBHighend or Contrast
20% - RGBLowend or brightness


RYR = I believe is red brightness which is Lowend.
RYB
GYR
GYB
Ugam
Rgam
GGam
BGam

Under ADJ1 you have the following:

Light end of Gray Scale

RDRV - Red Drive
GDRV -Green Drive
BDRV - Blue Drive

Dark end of Grayscale
RCUT - Red cut
GCUT - Green Cut
BCUT - Blue Cut

I found the below from This post- http://www.avsforum.com/avs-vb/showt...8#post10632798


Contrast, Gains, and Drives are for adjusting the bright end of the gray scale.

Brightness, Biases, Offsets, and Cuts are for adjusting the dark end of the gray scale.

and
For Sony CRTs

RYR (red brightness),
RYG (red tint)
GYG (green brightness)
GYR (green tint) in the service menu.
Use red tint to adjust the hue of magenta and green tint to adjust the hue of yellow. Use these as enhancements to the main Color/Tint control to achieve virtually perfect color decoding.

Anyone have any input on the above?