i hated working on multisync monitors. things were a real PITA to troubleshoot, probably because i didnt understand how it worked too well, and still dont.

The interesting thing, was the viewsonics and the 2 separate horizontal paths, had an HV output, and horizontal output, on 2 separate circuits. not an all-in-one common circuit. It would run for awhile without an issue then one day, it would just take out the horiz transistor. replace it, it was fine again for another couple of weeks.

hated them. glad they are gone....