Amazing how you have the patience to do this "not fun" job. Back in the 90's when I was a bench tech, I got out of the business due to the engineering and cheapness of the newer equipment. Best example is when audio equipment no longer had a bottom panel access cover. Worse was the crappy warranty labor rate. Now I know that even in the "old days" the same thing was going on. No care to serviceability. Hope you are getting paid well!
That set looks like a *nightmare* to work on! GE was pretty cheap, but at least it had the decency to *not* use rubber insulated wire in this set that had insulation flaking off if you so much as look at it the wrong way.
GE....Genius Electric, because they were smart enough to engineer a color TV to blow up 3 minutes after the warranty expired without the use of software and microprocessors to self-destruct after a certain amount of time.