【Operation Check】 MIDI input terminals A and B on the back have been confirmed to be working. (The front MIDI input terminal B can be used by switching internal settings, but this has not been confirmed.) Volume knobs, the headphone jack, and OUT PUT 1 have been confirmed to be working. Other functions have not been checked. Please understand that this is a vintage item before purchasing. ※I have a cat. I inspect the item, but there is a possibility of cat hair adhering to it. Please refrain from purchasing if you are concerned.