Credits
Thanks to Mr. Sporty for the NBA Jam PCB scans.
The Sanyo LC89515K datasheet came from Eidolon's Inn
Thanks to Charles Doty for SNASMZ80 and SNASM658.
The original Sega Channel adapter scans were provided by Clint Zirk.
The 'Master Mega Converter' scans were provided by H. Meun.
The other schematics came from Gringoz