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Original Service Manual for the Boss TU-6 Guitar Tuner.

This is an original Roland / Boss service manual for the vintage TU-6 guitar tuner unit. It is an original service manual, in English, in very good condition, complete and detailed. With specs, parts list, meter adjustment, and several circuit board diagrams. 

• 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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