I finally found this missing Service Guide in the wild. I scanned it page by page and it is now preserved. This is the Apple Service Guide for Macintosh Computers. This is from June 1997 and is the fifth iteration in the Apple Service Guide series. This covers how to diagnose, repair, upgrade, and troubleshoot Power Macintosh 7300/7600, Power Macintosh 8600/9600, Various upgrade and optional extra cards, Power Macintosh 4400, Apple Network Server 500/700, Power Macintosh 5400/5500, Power Macintosh 6320/6360, Power Macintosh 6400/6500, PowerBook 1400, PowerBook 3400, and the Apple EMate lineups.