PS2 RGB pin-out diagram for Guncon

[Classicgamer]

Does anyone have a pin out diagram for modding a PS2 rgb cable for use with a Guncon?

I have an Ultimarc PS2 vga cable with a vga breakout board. I just need to know which signal needs to go to the Guncon. I.e. Is it just composite sync or does it also need a video signal?

[Star1]

Csync works just fine.

[Syntax]

You can plug into the tvs video out, use the PS2 green channel if running component or use the composite video from the PS2.

Luma probably works too.

[Classicgamer]

Csync works just fine.

Thanks.

Just to confirm, are you saying to use just Csync on it's own? I.e. I don't connect the Guncon to any of the red, green and blue lines.

[Star1]

Yes, that's it.

[Classicgamer]

Yes, that's it.

Thanks. That sounds simple enough.