Recent content by Polish-Jack

I figured it out! It was just a sync issue. I had a minor epiphany and turned off composite sync and provided the chassis independent -H and -V sync signals. It cleared everything up. Thanks for helping, everyone!

This board is kicking my butt. I fixed a couple K7000 boards and a K7200 but I am at a loss on how to proceed with this one. I've connected a CM TPG to it, and revived an old Sencore from the 90s. Both are showing the same problem: a de-synced picture with retrace lines showing no matter how the...

Thanks. I found a service manual.

I am helping a friend fix a monitor for a Sega racing game I can't remember the name of right now. The screen was dead but I managed to get it working. I found some broken traces and a defective HOT. I have the CRT powering on now but I think I have a blanking issue. I get scrolling raster lines...