The Sony AV-3600 service manual was what I needed for the repair of this unit
Thanks for the good service
Dave
Text excerpt from page 31 (click to view)
SA-HT700P / SA-HT700PC
Step 2 Remove Loading Motor P.C.B.
15.12. Removal of the Drive Gear (A) & (B)
� Follow the (Step 1) - (Step 2) of Item 15.1. � Follow the (Step 1) - (Step 4) of Item 15.2. � Follow the (Step 1) - (Step 5) of Item 15.3. Step 1 Release the claw in the direction of arrow (1), and then push drive gear shaft up. Step 2 Remove Drive Gear (A) and Drive Gear (B).
15.13. Removal of the Drive Gear (A) & (B)
� Follow the (Step 1) - (Step 2) of Item 15.1. � Follow the (Step 1) - (Step 4) of Item 15.2. � Follow the (Step 1) - (Step 5) of Item 15.3. Step 1 Release the claw in the direction of arrow (1), and then push drive gear shaft up.