Step 1: Power off game. Flip dipswitch #2 found on the main board back to "ON".
Step 2: Hold both "ESC" and "ENTER" buttons while powering the game on.
Step 3: Confirm that the display is showing “0000”. If not, start over.
Step 4: Press the "ENTER" button on the main board until the third display is selected. Press the "DOWN" button to change the third 0 to 7.
Step 5: Press the "ENTER" button twice. The display should change to "Init".
Step 6: Once the display shows "Init", press and hold the "ENTER" button until the display goes blank. The default settings should now be loaded.