The manual was exactly what I needed, Good quality scans too. superb.
Text excerpt from page 18 (click to view)
3-5. DISC TRAY
(Perform after removing the front panel.) Note:When installing the Disc tray, pull around the flat type wire to pass through the claw A and claw B, as shown in the figure.
3 Flat type wire (8 core)
4 Two claws
2 Pull-out the disc tray. 5 Remove the disc tray.
Claw B Claw A
1 Turn the cam the direction of arrow.
3-6. SLIDER (CAM)
6 Slider (Cam)
Set the shaft of Cam gear to be at the position in the figure.
2 Bracket (Guide L) 1 Two screws (BTP2.6x6)
3 Leaf spring
Set the shaft of Lever (O/C) to be at the position in the figure.