pacoarcade
Professional
Hello, I bought this Supergun for cheap (23 euro) to connect jamma boards to SCART tv sets and apparently it works fine, but it doesn't buffer the video signal and it drives TTL CSYNC, so I've added a 470 ohm resistor to the CSYNC line and a buffer circuit using THS7314 (next time I'll use THS7374 with filter disabled). I like that it works with Sega 6 buttons controllers, reducing the initial cost to get this running
My setup is simple: I use the R G B pots as voltage dividers to drive the right signal directly to the THS7314. In the outputs I add a 75 ohm resistor in series for each line. I also put a ceramic 100nf capacitor in the THS7314 between Vs and GND, and also a 33uf electrolytic capacitor that removes ghosting.
I attach the latest revision of this circuit.
My setup is simple: I use the R G B pots as voltage dividers to drive the right signal directly to the THS7314. In the outputs I add a 75 ohm resistor in series for each line. I also put a ceramic 100nf capacitor in the THS7314 between Vs and GND, and also a 33uf electrolytic capacitor that removes ghosting.
I attach the latest revision of this circuit.
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