1. First, open the border of mahjong machine with professional tools, and remove the cover plate that covers the border. Check the keys of mahjong machine's desktop dice.

2. Then find the fixing screw at the edge of the mahjong slot and unscrew it with a tool. Find and remove the game digital gear table on the cover plate, and then adjust the gear according to the game plan on the gear table.

3. After the gear is finally adjusted, restart the automatic mahjong machine, then tighten the screws, cover the cover and press down the blank holder, and the gear debugging in mahjong machine is completed.