This item powers on and the display lights up and gives you the full menu but it does not produce sounds. I recently replaced the back light and a few of the capacitors that were leaking. All of the buttons work on the front panel and you can go through the menus but there is no audio out besides a hum. If you turn it up all the way and you start the sequencer you can barely hear very low volume tones. This item has some scratches on it casing. The volume pot on the front works because you can hear the hum get louder as you turn it up. I have the feeling the ROM chips work because you can load them into the unit but can not guarantee it.