Two little Predicta questions

[Phil Nelson]

After a recent relapse was cured, my Predicta looks good but has two little issues.



Issue 1. The horizontal centering and linearity are just a tad off. I've done all I can with the centering control -- it just moves the image in one direction and then goes back the other way if I turn it farther. I can't move the linearity adjuster at all. It's the flat magnet sticking out on an arm to the left.



I tried to rotate it, which just started rotating the entire yoke. It is tilted with the top end closer to the front, but adjusting by bending the arm seems so peculiar that I hesitate to chance it. What's the secret behind this adjuster?

Issue 2. There is an opaque piece of "stuff" stuck between the cover and the CRT face, so I want to remove the cover.



The oval cover clasp seems to be held on with wire hooks at the base, but I can't get them free with a needlenose plier. The clasp is on really tight. If someone has done this before, how did you do it?



Thanks!

Phil Nelson