I've got the 3 sheet 'Drawing Package Supplement' for Red Baron. I don't think that's what you're looking for, but you can have it if you want it.
Contains:
Game Door and Power Supply Wiring Diagram
Math Box Signature Analysis Procedures
Mircroprocessor
Coin Door Inputs and Analog Viector-Generator Outputs
Analog Vector-Generator
Auxillary PCB, Math Box, Switch Inputs and Audio Outputs