Oh, yea that might damage the OSSC over time...I read that my Supergun (MK) does not attenuate the voltage in the Sync line, it is direct, it does not have any type of resistor.
Oh I almost forgot to tell you...I want the HAS for CPS2 and Neo Geo MVS, I do not have other arcade boards.
RGB can you please remove me from the list for a HAS please? I got a v3.2 from a forum member. I still want the small items I put on the list please.The V3 uses a potentiometer to adjust CSync for Taito F3 connected to XRGB mini (in order to fix the upper part of the screen), in V3.1-2 it's done automatically. The V3.2 allows to disable buttons 4-6 on the JAMMA connector, the V3 lacks this functionality.
Get this...then using a stereo RCA to female 3.5mm adapter from the CPS2 to the 3.5mm audio connector on the SCART cable
It's basically the same thing you are talking about doing with the cable above (only I think its in a much neater package).
The kit comes with a 8-pin mini-din cable (male/male) so all you would need is the RCA to 3.5mm audio cable.
Keeping the audio and video cables separate also helps reduce video noise in my experience.
The "issue" you are talking about is the OSSC is displaying a image outside of what would have been viewable on a real CRT tube.for the right side issue I fix it with TV's service menu