Developing an Operations and Service manual

Hi All:
I want to create a service manual for a product I am designing. It occupies three packed 3.25" x 5" double sided PCBs,mostly 0805 and some thru hole parts. A 28 pin SOIC micro some jelly bean opamps and a TL494 are the IC's.

It's complex enough to make it hard to figure out the design after putting it down for a couple of months. It's been growing in fits and starts for about 3 years now. I add a feature every so often. This session I want to get to a beta test version.
Having never done a project this complex before I usually document by adding comments placed into the schematic on the design reasoning and noting a few testpoint voltages etc.

Does anyone have a suggestion as to a good method or example for doing such documentation?
tx
Ancel

Ancel:
As I said in tekscopes look at some manuals.

Here is a manual for a Keithley 480, https://www.google.com/url?sa=t&rct...UySuq6CK7L6AGMA&bvm=bv.89217033,d.eXY&cad=rja

it's the "newer style" where they "loose" informaton in their parts list.

Note on PDF page 26, for Q101-104, the info is not complete. Only the Keithley p/n's are given. In an older manual, usually more info was given.

A lot of times, manuals such as Heathkit and Zenith would have a page of IC outlines. The designer and/or trouble shooter might need the manuafacturer's datasheet.