Hey everyone, I’m having some electrical issues with my machine and I’m looking for a little bit of help. I have a late 90s hitachi ex75 ur grey market machine and it is equipped with the marccino system. When I fire the machine up i can operate all boom controls at a very low idle . Once I increase throttle the boom instantly locks out the boom up, boom down and boom in controls . The boom has a pivot point to allow you to dig on an angle and it also locks out one direction only. I’m certain it is electrical based on how sudden it shuts off and because if I hold the toggle switch behind the seat it appears to bypass this system and everything functions normally. Can anyone point me in the right direction to sort this issue out? Thanks very much