Hi,
I know that this will be very difficult to answer.
Because I can't find anything on the internet about the reproduction of this small Sega board (gunBoard), which is used on the Model 2.
This board is used on the games Virtua cop 2, House of the death and can also be used on Model 3 (lost world) with cable adjustment..
Without this board, the game (Model 2) will not boot at all.
Works only with CRT and Happ gun.
It uses the RS422 port for connection.
I want to try to make something that would trick this RS422 port and the game would start.
I know that there is an IONA converter board (JVS), only it is for the newer Naomi system, etc.
Has anyone tried to connect this IONA (JVS) to the RS422 port (Model 2,3) ?
How to connect pins (RX+, RX-, TX+, TX-, GND) to this IONA, which has 4 JVS pins (Sense, Data+, Data-, GND) ?
If IONA could communicate with the RS 422 port (model 2,3), then maybe it would be enough to make something like this.
https://github.com/ninomegadriver/lightgun/tree/main/sexmachine
Does anyone have experience and have done something similar on a Sega Model 2.3 ?
Otherwise, there is nothing that could replace this original small Sega gunboard.