I need help with a very particular sync problem I'm having. I repaired a Sun Monitor with a Sony Trinitron tube which doesn't have a service manual, which makes things difficult. The problem I have is that it loses horizontal sync both in the post and in most games (it's a Retro PC). It only looks good in Windows and running Quake 2 (800x600)...I tried half life, safe mode win, and other similars test and Horizontal lose sync. I've already tried changing capacitors on the sync board and I also changed a regulator. Has anyone ever seen something like this? Any help would be appreciated.
