All parts have been disassembled, cleaned, and sanitized. Functionality has been verified using multiple software programs and a burn-in cassette. Long-term operation has also been confirmed by running Momotaro Dentetsu in computer-vs-computer mode. The capacitors marked with red circles have been replaced with new ones. Exterior dirt has been cleaned with a melamine sponge. This is the main unit only; the cassette in the photo is not included. Will ship within 48 hours.