This is the ONLY copy of this manual I could find for a realistic price. Even Panasonic could not provide me with one.
The PDF is a very good copy and it helped me diagnose and find the fault with the unit I have.
Text excerpt from page 6 (click to view)
4. TAKING THE DISC OUT OF EMERGENCY
1. To open the stucked tray, insert a pin into the eject pinhole and push the eject lever. 2. Use a pin �4mm or less.
This picture shows the unit upside down. The eject lever is pointed by the arrow. The lever is thin so aim the narrow area carefully.