What power cords do I use to use the dvd player on an airplane?

What is the model number of your DVD player? You may try power resetting the unit and check if it helps. To power reset, turn OFF the DVD player and unplug the power cord from the electrical outlet for 30 seconds. Plug the power cord back into the electrical outlet and turn the player ON. Attempt to open the disc tray.

Depending on the model number of your DVD player, simultaneously press the POWER + STOP + EJECT buttons. If the disc tray still does not open, simultaneously press the DISC1 + STOP + EJECT buttons.
NOTE: This step may not apply to all models as DISC1 is not available on all DVD players.

If this does not work and if the DVD player has DISPLAY and PREV buttons, press and hold the DISPLAY+PREV buttons for two seconds to unlock the drawer.
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FOR SONY PLAYER's

This issue may occur if the disc is damaged or if the disc was not inserted properly into the Blu-ray Disc® player. Follow the steps below to open the disc tray and eject the disc.

1. Turn off the Blu-ray Disc player.
2. Disconnect the power cord (mains lead) or AC adapter.
3. Allow the disc player to remain without power for 30 seconds.
4. While pressing the OPEN/CLOSE button located on the front of the disc player, reconnect the power cord.
   IMPORTANT: For some Blu-ray Disc Home Theater models it is necessary to press and hold the OPEN/CLOSE andPLAY buttons simultaneously, then reconnect the power cord.
   NOTE: This step may require the assistance of a second person.
   
5. After reconnecting the power cord, when the tray opens, release the OPEN/CLOSE button.
6. Remove the disc.
7. If necessary, disconnect and then reconnect the power cord to recover the player.

same problem here !!

Go to radio shack maybe they got something that be usefull for you

you can get a replacement ac/dc power cord for durabrand portable dvd player model # PVD-707 here;

http://www.acdapter.com/DURABRAND_PVD_AC_ADAPTER.html

Replace the power cord with the new

You can buy a new car adapter by clicking on the hyperlink:
buy replacement car adapter power charger cord for TOSHIBA SDP-1600

Hey, not sure if you still need it, but there's a power cord for the PDM-2727 listed in an Ebay auction. Like you, I need the AV cord, er, at least I think that's the problem. The listing also shows an AV cord available for an extra $5 but it looks generic. Might be compatible though. I don't need the power cord or I'd ask the seller, but you might want to check it out if you still haven't found power cord/AV cable yet.

You did not state the model number. Kind of hard to find the correct adapter without that knowledge. Also which cord do you need, the power cord for the car, or the wall in your house.

Have you tried ebay:
http://tinyurl.com/2n5r2w

could this be it:
http://laptopsforless.stores.yahoo.net/adpv08.html

Have you tried searching on google:
http://tinyurl.com/2ugtwe

click on hyperlink:

buy replacement ac power power cord charger adapter LIQUID VIDEO LIDM830

It sounds like there is a connection inside the dvd player itself. If you feel comfortable taking it apart you will prob. see if there is a missing connection.Hope this helps!