You can play ,ff,rewind normally only the auto reverse is not working Yamaha K-640 Cassette Deck is a vintage audio component manufactured in Japan in 1988. Known for its reliable performance, this cassette deck by Yamaha features a model number of 640, making it a sought-after piece for audiophiles and collectors. While it may have some working issues, it still holds value as a classic and durable piece of home audio equipment.
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