Help with IMSAI docs

I picked up an IMSAI turnkey computer with dual disk drives and am looking for some docs on the boards. It uses an MPU-B card which has an 8085 and some software in a 2716. I can't seem to find a manual on the web for it, nor for the DIO & PDS II board (which are the disk controller boards) can anyone point me to a manual or schematic? I assume this boots from the EPROM and talks to a serial port on the MPU-B card. No cables, or software came with it. Here's all of the boards it has: MPU-B RAM III Rev 1 SIO Rev 3 PIO Rev 1.1 (Mits, not IMSAI) DIO Rev 1.1 Disk Controller PDS II STD Rev 1 Data Separator (w/above) D.C Hays Micromodem 100 The dual floppy system uses CalComp, Caldisk 142M 8" drives. I would love to try and get this running (CP/M?). I probed around the serial connectors, but do not see any data coming out after reset. Before I start to trace down the boot EPROM circuit, I thought I'd ask here first. Here photos of the system: http://www.dvq.com/oldcomp/photos2/1k/imsai_8030_1.jpg http://www.dvq.com/oldcomp/photos2/1k/imsai_disk_1.jpg Thanks Bob