Sony KF-60XBR800 Manual page 29

(33) In the instructions, there is a table with your values, as well as detailed
instructions on how to tweak the values for your own set using Avia test patterns.
The table displays a value for item RDRV (Red Gain), but the instructions never
address RDRV. Does this mean we should change our setting to match yours (40)?
Actually, what you choose to balance the yellow with is arbitrary. You can use either red
or green. You might want to drop red though if you run out of panel on the green which is
what happened on my set. In general though one panel is going to limit out first on the
high end. That is the one you want to balance everything else around. This assumes you
want to maximize the contrast ratio of your set. To see which panel limits out first I
would use the THX Optimzer constrast display and increase the picture setting while
looking through the different AVIA filters. The color that limits out at the lowest picture
setting is the panel that will limit your adustments. Green is sometimes used as a basis for
other settings so an argument could be made that you should be using red. I just tried to
simplify the instructions as much as possible to avoid confusion.
(34) What are VGAM and GAMM? Are you lowering gamma, thus increasing
contrast? Also, what is the point of adjusting 2170P-2 (Picture, Brightness, Color,
Hue, Sharpness, UTMP)? Seems like you can do this through the normal user
menus.
The VGAM is a gamma multiplier (0.5 to 1.5) where 31 sets the multiplier to one. This
input ranges 0-63.
GAMM is selecting a preconfigured gamma table in the TV. Table 0 is actually a higher
gamma (go figure) than the default 4 or 6 for Pro mode depending on the input. The zero
table seemed like the highest gamma I could get from the tables.
Try reading what the file says for 2170P-2 again after reading the following. The first set
of numbers are the settings that are used if you press the reset button on the remote. This
is very handy for recalling your calibrated values back. The second set of numbers are
internal biases that can be used to calibrate each input type separately. A good example of
this is some devices are not SMPTE and some have different black levels (0 or 7.5 IRE).
Without this type of setting you would need to switch picture modes (Standard, Pro...) to
save different settings for each input. This would also greatly complicate the calibration
since each of these modes has many settings that would have to be changed to
equivalence them to the calibrated Pro mode in my post.
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