Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
Text excerpt from page 10 (click to view)
<DVD changer mechanism assembly>
Prior to performing the following procedure, remove the top cover and the DVD changer mechanism assembly.
DVD changer mechanism assembly
Removing the traverse mechanism control board (See Fig.17)
1. Disconnect the card wire from connector CN101 on the traverse mechanism control board on the bottom of the DVD changer mechanism assembly. 2. Remove the screw L attaching the traverse mechanism control board. Release the three parts e, f and g and remove the traverse mechanism control board.
Part g DVD traverse mechanism control board
Ejecting the DVD (See Fig.18 and 19) When the DVD is set or the traverse mechanism is up.
The DVD tray can not be ejected when the traverse mechanism is up.
Bringing down the traverse mechanism as shown in the Fig.20
1. The motor pulley and the belt can be seen on the front side of the changer. Turn the motor pulley clockwise until the belt stops. 2. Pull the tray lock lever on the left side of the changer and draw the DVD tray. 3. Draw the DVD tray 1 to 3 as above. Fig.18
Draw the DVD tray. Traverse mechanism As the motor pulley is turned, the traverse mechanism lowers.