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Yamaha HS-500 HS-200 HandySound Mini Keyboards Original Service Manual Book.

Original Yamaha service manual for the Yamaha Handysound models from the early 1980's. These are hard to find models now, so if you have one that's not working (or want to circuit bend one), this is what you'll need!

This service manual is in very good condition for it's age.

It would be very helpful to work on / test / fix / Circuit Bend your HS!

Thanks for looking!

>>> This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. 

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