Sega X Board: Thunderblade repair

[Arcade-Projects]

I recently got a Thunderblade DX. The board was never taken out of the case and it looks like new. Unfortunately it doesnt work in the machine and also not with the cables I wired into my Supergun. All voltages are present on the cabinet. I just get a black screen. Anybody ever repaired one and could assist?

My Supergun is powered by 2Amps on the 5V rail. Maybe that is not enough?

Source: https://www.arcade-projects.com/threads ... air.25156/