/vr/ - Retro Games

>>1275807

I opened it up to adjust the SCREEN control with the hope I could eliminate the visible retrace lines.

This control is a small pot on the neck board (the small PCB behind the electron gun), behind the big white block connector in the upper left of the picture here - you can see the white horizontal static convergence pot at the other end of the board to give an idea of the size of the controls.

I was scared shitless trying to do this TBH as I needed to do it while the set was turned on and access is fucking awful. I was so nervous trying to get my hand in there while trying to not touch anything else on the off-chance anything was live or I'd knock something out of place (like the 900V red wire also going into the neck board!). The static charge from the bleeder resistor? (the big red thing coming from the flyback) attracting the hairs on the back of my hand caused a certain amount of feels.

I also tried adjusting the focus and H static convergence but don't think I made much difference. The convergence and purity is a bit off but besides the H static pot the rest of that is controlled by the neck rings, magnets and moving the deflection yoke - there's no way in hell I'm touching that shit on my only good CRT.