Yamaha DSR 2000 FM Synthesizer Keyboard tested, READ Keyboard powers on, and was able to send output through the headphone jack. Most buttons seem functional, but was not able to change voice of keyboard. Could not get output through main onboard speakers. Broken Highest C key, and a B and Eb key are sunken in. No further testing. DOES NOT come with Power cable. Sold AS-IS // PARTS AND REPAIR. DOES NOT INCLUDE WARRANTY. Ships out next day.