Panasonic DVD-RV22PP Service Manual page 25

6.4. Tray
1. Pull the tray out of the mechanism unit. Remove the gear and
install it onto a screwdriver to make a gear jig.
2. Insert the gear jig into the tray open/close hole.
3. Turn the gear jig counterclockwise to open the tray.
4. Remove the tray dressing from the tray section.
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