Thanks again Timmy.
These modules use 2 101 cards. The schematic you posted is similar to the one I sketched out but the signal path is a bit different. The second card is being used as a makeup amplifier I believe, as the cue and echo sends are ahead of it, and the Eq is in the feedback loop of the second card. It will be interesting to see the posts that are forthcoming for comparison sake. There were so many different SS consoles as they were a "custom" order item built up from a couple of standard platforms. The customer would add various options as the application and budget demanded. When Harrah's Lake Tahoe de-comissioned the 40 input SS console, it went into storage and was later given to me. I was in the process of stripping it down to rewire it as a more conventional recording desk when Divorce caused me to part with it. It was a massive console...8' ft. long and weighed at least 500 pounds. It was configured as a 5 channel mono out with a quad panned (joystick) master, feeding the 5 speaker arrays...L,C,R,RR,LR. It used the 3 band EQ's on every channel. In reality, it was only a 20 channel plus 5 channels with a 5Y (5 mics input) via a 5X1 premix so you could control up to 40 mics. Kind of cool for the time. It was a beauty. The meter bridge had a hinged top that revealed the 100 or more 101 cards. Each output buss had a 610 Complimiter built in too. Just waxing with the memory here, sorry. One thing I can tell you about that console, is that every employee of the stage crew would say how wonderful it sounded, because it was replaced with a Yamaha PM-3000! No wonder...and it rarely broke down unlike the PM3K...Junk.
So, basically, these modules here are about the same except for the EQ being a 501 2 band unit.