This unit was eliminated from a local studio. Spick-and-span. You can see (from the attached images) the condition of the system and the clarity of the screen.
I ran the unit through a number of functions (see photos) and everything appears to boot up correctly.
The only issue I might discover was the motorized slider on channel 8 hangs up in the zero position occasionally. A gentle nudge appears to return it to complete movement. Might be a simple fix.
The system consists of the meter bridge and is loaded with (4) CD8AT cards. The cards alone offer on eBay for over $100 each.
The original handbooks for the O2R and the V2 upgrade are consisted of.