Download the manual and the preload disks too.
Use new floppies for the operating system to be safe, you don't want any other data of
any kind on it!
*** ENSURE YOU DISCONNECT ALL MIDI PORTS, SCSI CONNECTION , EXTERNAL CLOCK
CONNECTION & ALL HDR-RECORDER JACKS. DO NOT TOUCH ANYTHING ON THE TRINITY. ANY DISTRACTION TO THE PROCESSOR IN THIS DELICATE STATE WILL CAUSE IT TO "LOSE IT'S MIND", NEVER TO RETURN.***
I lost mine, know of two more, don't lose yours.
As far as restoring factory sounds use the PCG file.
And a peice of advice for any disk/OS based device be careful in what data you feed it.