The following procedure can be used to check the ROM version:
1. Press PART and RHYTHM simultaneously to enter ROM Play mode.
2. While holding MARK and JUMP, press ENTER. The version will now be displayed.
3. While holding MARK and JUMP, press EXIT to leave this screen.
1. Press PART and RHYTHM simultaneously to enter ROM Play mode.
2. While holding MARK and JUMP, press ENTER. The version will now be displayed.
3. While holding MARK and JUMP, press EXIT to leave this screen.