SONY TV Kv-27ts27 color problem

[Joust]

i have a SONY KV-27ts27 made July 1992
I'm noticing that red is more brown than red.
i tried adjusting things a bit but not gotten very good results.
there is no red drive pot. there is a green drive and a blue drive but no
red.
there is a red BKG pot and a blue BKG and a green BKG.

is there a procedure for tuning color? i made a nice colour bar test
pattern
on my PC and use the tvout from the PC into the video 1 input.

Wish i could get this set tuned up because it works well other than the
poor
colors. there is definately red there so its not a failed gun. at least not
completely.

i have replaced the MPX chip in the past.
any help would be appreciated.
Joust

 

[Skype_man]

Generally turn the color off, some units require unsoldering
the color crystal, but not this unit. If the G2 & other pots like
ABL, weren't fooled with, turn the red, green, & blue to minimum,
then try about 25% red, then mix in green to look orangy/yellow,
then mix in blue to get "true B & W". It's easier to do, than say.
You just do it by eye. If you fool it up, & say it looks too green,
just reduce, & mix green, & blue as needed. Sounds like mixing
paint for a car. Sky