Panasonic Tau series R-Y B-Y issues

[ARC Tech-109]

Anyone familiar with the Panasonic Tau CT-34WX54 "Direct View" widescreen CRT sets? Issue I'm having is the red (R-Y) and blue (B-Y) color response doesn't seem to be tracking the green on the low and midtones thus giving everything a greenish tinge, like the gamma is not tracking. Highlights are good and Ive spent literally hours in the service menu trying to adjust the various response values. The whole issue started when I opened the service menu (Ch124+timer=30 &vol=0) to adjust the horizontal width and vertical height to correct the overscan on HDMI when using a computer. I made no adjustments to the colors during the first entry to the service menu for the H&V, it just reset itself to some default values upon the power down & restart. I would post some images here but the camera makes everything worse with its auto white.
I'm an old hand at setting up things like drive and background but no matter what I cant get the colors to track properly with the green, I set them up correctly using a gray stairstep and everything is good, NTSC bars are correct but fleshtones take on an olive cast especially at lower luminance values.

Am I missing something here? Please check me

thanks

Brhat