I have a one year old projection tv that had to have the focus
block replaced. The block has 6 knobs, 3 to focus each color and 3 for
what I think is the amount of each color or something similar. The
service tech came over and installed it by copying the settings on the
old block for the color adjustment and focusing it by turning all the
color down with the remote and focusing a black and white picture.
This does not seem like the correct procedure. After he left I reset
all the modes of the tv, eg Movie, Pro, Standard. The color is too
strong on all these standard setting and the picture just looks like
crap. I was thinking he would hookup some electronics to take
measurements or something. Anyway 2 weeks later the colors on the tv
are all messed up. Lots of green terrible picture. We have another
call in for service and I would like to know what the correct
procedure is.

Does anyone know what the Sony service manual states?