The manual was very accurate for the part that I was changing, I was able to order the correct part and had no issues with the replacement procedure. However, I was expecting to have more detailed repairs for the lower drive unit.
Text excerpt from page 38 (click to view)
TC-K715S/K717ES/K815S
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. 1.1 1.0 Date 2001. 06 1994. 03 Description of Revision Corrected errors in the electrical adjustments, schematic diagram and electrical parts list. New