I am using a Sigma Raijin supergun setup with a Sony PVM 20m2mdu and Sony PVM 1953ST monitor with Raiden Fighters PCB.It works great with JP 21pin RGB cable but it has problems when I hooked up with S-video cable,it works but no color, only black and white color.Also I test it with a Sony WEGA KV-36FS120 (CRT)by S-video hooked up it has nice color but the TV screen keep rolling,never stop,so i can't start the game.I tried to test with a CELERA(13 inches) crt TV with Composite video cable cause this monitor doesn't have S-video input and it works great.So I think it depends on TVs Sync.