As time permits, I will be recreating and posting schematics. Some have not been proofed yet but are complete enough for troubleshooting. Please notify me if you see a mistake or have something to add or have a suggestion.
The following are schematics and drawings (in Adobe PDF or .gif) of the ESQ1/SQ80 system:
Redrawn schematics copyright Rick C. 2008
VCA and Output circuit. PDF
Power Supply Module PDF
Pedal - Tape - Midi I/O PDF
All redrawn documents on this site are Copyright ©2007 Rick C.