How to reset the dvd tray on a sylvania dvc850c

SOURCE: Sylvania DVC850C DVD Player

Sometimes the mechanism that spins the disk does not go up or down all the way then when it tries to eject its not all the way in idle. Could be from heat With it unplugged try and tip it upside down, maybe that will let the mechanism go back to its resting position so you can get it out. Reguardless it sounds like there is a problem that needs looked at inside the unit.

SOURCE: dvd tray will not stay closed. opens and shuts randomly

i had exactly the same problem on a LG-RH278H resp. a Medion MD 81733. I solved it by opening the micoswitches, cleaning the contacts and streching the springs inside the switches a little. The Problem was, that one of the microswitches stayed conductive even when it was off/open.

SOURCE: DVD PLAYER DISC TRAY DOES NOT OPEN

tap it gently from the side while pressing the button......or with a knife try to open it gently...while pressing the button....after it,s open..clean the side n the belt..

SOURCE: My JVC DR-M70 dvd recorder tray won't close.

Sorry for the delay in following up. My tray problem appears to be resolved, but I wanted to wait a few days to see if the problem returned.

After reading several suggestions on various sites for other makes and models, I started experimenting to see if any would work on my machine. I made several failed attempts before hitting on the right sequence of steps. To the best of my memory, THIS is what finally worked for me:

1) I gently pushed the tray back to it's closed position (note: the solution did not work during previous attempts when I left the tray open)
2) I unplugged the machine for 30 seconds,
3) holding down the remote's open/close button, I plugged the machine back in and immediately pressed the stop button on the player, holding both buttons down for 30 seconds.
4) I unplugged the player AGAIN for 30 seconds, then plugged it back in.

A MIRACLE! Upon hitting the open/close button on the remote, this time the tray opened exactly as it should, and it's been behaving itself ever since. I don't know if any of the steps I performed were unneccesary. All I can tell you is that every time I left out a step, it failed. The first time I followed every step, I had success.

As for my remote: I put in fresh batteries. The open/close button still occasionally tells the tray to open and close simultaneously. tvdokter has suggested cleaning it on the inside, but unfortunately, I only see one screw (inside the battery compartment.) I can't see how to get in without breaking it. Oh well, at least I'm back to be able to play and record my dvds.

Anyway, thanks for the advice. I hope this solution will be helpful to someone else down the line. If anyone has any questions or comments, feel free.

SOURCE: Disc tray keeps opening/closing on DVD recorder

my dvd player sony cinema entertainment system dav-dz111 the tray is opening again after closing