2000 Zenith issues

[leadlike]

I fixed the vertical issues, and hooked it up back at my Dad's last night. I had run it for several hours, cycling the power several times, before bringing it back.

My Dad called a few hours after getting it back, saying there was a purple splotch on the screen-which was not there when I powered it on for him earlier after reinstalling it for him. He cycled the power a couple times to energize the degauss coil, and the screen discolored purple and green all around the edge of the screen. I guess the degauss coil or thermistor is screwed up. Any thoughts?

I'm considering just unplugging the sets coil and doing a screen wipe with my own coil. Will the set still play with the coil unplugged?