Clears the contents of bookkeeping.
When clearing, bring the arrow --> to YES, when not clearing, to NO by using the service switch or VR1 (red) or VR4 (green) buttons, and then press the test switch or start button.
When the data has been cleared, COMPLETED will be displayed. Bring the arrow back to NO and press the test switch to return to the menu screen.
Also, note that the game setting contents are not affected by the back up clear operation.