Toshiba SD800KA - SD800KA - All Region Codefree DVD Player Owner's Manual page 51

I Resetting
If the issue cannot be resolved after taking the above corrective actions, reset the main
unit by following the steps below:
1 Unplug the AC adapter from the main unit.
2 Set the BATTERY switch to OFF and then set it to ON again after approximately five
seconds. The play mode and other conditions will return to their initial settings.
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