My machine is connected to a coin slot, how do I access the song selection screen? I can enter a 9-digit password because nine stars come out, but pressing the enter key (start) does nothing.

When the coin slot is connected, it will lead to the occurrence that the system cannot be restarted. You need to remove the coin slot cable first, then turn the machine off and enter the 9-digit password with the RX-600 remote control, then connect the coin slot cable after entering the song selection screen. However, if the data reorganization screen appears, this should not occur and it is recommended that you send the machine in for checkup and repairs.