The manual for the CS 1000, one of the original Virtuality products.
Complete (1 file):
CS 1000 Service Manual
Same manual broken up into chapters:
Chapter 01 - Title and General Info
Chapter 02 - Expality
Chapter 03 - Visette
Chapter 04 - Space Joysticks
Chapter 05 - Connections and Pinouts
Chapter 06 - Tracking Systems
Chapter 07 - Reserved for Future Use
Chapter 08 - Engineering Test System
Chapter 09 - Help Details
This is not the same scan previously hosted by VRtifacts or other sites, but it's probably exactly the same manual.