I have a Yamaha Giant Pulsar with the big screen on it.
Awesome machine but an error or something occurred when kids playing it.

The screen is blank and has beeping tone with top light staying on and concerning the screen does not come back on.

I did reset several times, turned on with key in on position. Tapped stick/ knob three times and the key to off position. Nicks and ready play but no screen.
Makes noises for coins and play for less than minute and then beeping sound only.
But can still add coins and play, but only sound is beeping noise and the screen animation does not come on.

Please help. Is there a reset for screen?
Not sure what manner of button pushing they did...