Roland 700 start up problem. Please help

Press shuts down a few seconds after powering up. Has anyone encountered this issue? Which fuse should I be looking at? We can’t get an electrician asap and have a rush job that needs done.

help is always appreciated.

 

if the main switch is tripping upon powered on you must check the motors those getting direct power after from the main switch ( like the main motor ventilator and blowers/pumps etc.) and then aggregates like technotrans

 

Undervoltage....
Check voltage, machine mesure phases, and it shut down if phases are under or over 5% of 400V...

 

this is exactly what happened. All good now. Thx