It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
Text excerpt from page 16 (click to view)
SA-SC8/WS8/SS-CT8/TS8
REVISION HISTORY
Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.0 1.1 1.2 1.3 Date 2003.09 2004.09 2004.11 2004.12 New Addition of Ref. No. 58 COVER for SS-TS8 by change of service classification Addition of Ref. No. 7 and #11 (for SS-CT8) Change of Part No. of Ref. No. 6 (for SS-CT8)
(SPM-04104) (SPM-04120) (SPM-04131)