Reply To: OSSC Pro and the NAC Splitfire Jamma Capture Compatibility Thread-a-go-go.

[marqs]

Have you tried tweaking any of the AV1-3 sync settings, especially TTL Hsync Vth and glitch filter length? You should also set H-PLL Loop Gain to maximum when using e.g. certain Toaplan2 PCBs with extreme sync irregularity where framelock needs to be disabled. In general most arcade boards should run fine with framelock so I’m wondering why that kind of setup has issues when the TTL sync is supposed to be clean. Analog sync path has slighly more filtering which may explain why a scart adapter or usual supergun works without issues out of the box.