Toshiba SD3010KB Owner's Manual page 25

Problem
Buttons do not work
Player does not respond to some operating
commands during playback.
DVD Player cannot read CDs /DVDs
Menu items cannot be selected
Troubleshooting
Solution
-To completely reset the player, unplug the AC cord from
AC outlet for 5-10 seconds.
-Operations may not be permitted by the disc.
Refer to the instructions of the disc jacket.
-Use a commonly available cleaning CD/DVD to clean
the lens before sending the DVD Player for repair.
-Press STOP twice before selecting system setup
menu.
-Depending on the disc availability, some menu items
cannot be selected.