The total adjustment procedures including service are on page 60 of the service manual (thanks Retro RGB)
https://cdn.retrorgb.com/assets/monitor ... -3725C.pdf
I could not find a convergence option in the adjustment procedures.
I feel comfortable at this point adjusting the yoke rings and focus but I don't understand if the V focus and H focus will help with convergence.
The yoke rings and focus rings are held factory by a hard yellow adhesive.
Unlike most yokes, This one has finger notches and a thick glue outline to easily adjust and get back to factory.
Hopefully someone could shed the basics of whether the H and V focus will help with my convergence issue.
Also I counted 7 ring adjustments (cogs) on the yoke and would love to know what they do and whether or not to touch them to resolve my issue. Is there a typical order to these yoke adjustments?
If someone (especially XGA) could help lead me down the path of troubleshooting this I would be very grateful.
Bonus question: do I need an oscilloscope to do this adjustment?
High res photos is in spoiler