Correction, VH and VL are VHF High and VHF Low. That board is used for the digital indicator when tuning, not for actual screen geometry.

Sony made some awesome gear over the years. Great video!

This is beautiful thank you for sharing!

Wow thats a really cool design. Wish stuff was still designed with repairability in mind like that thing.

I recently acquired a KV 4100, do you know exactly how to adjust Vertical/Horizontal Center? As well as pincushioning? I can't find any good description of where to look, though it seems like there are no easily adjustable pots for that stuff. I would appreciate any insight you have on the matter!