Yamaha Portatone PSR-550 Midi Keyboard Service Manual
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Yamaha Portatone PSR-550 Midi Keyboard Service Manual in .pdf Format
Complete service manual in adobe .pdf format, for the powerful PSR Portatone keyboard, model PSR550. This is a full service manual, with specs, parts list, exploded views, circuit board diagrams and more! This is an excellent reproduction of the original manual in .pdf format, and I will send a link for you to download online.
Modify / Circuit Bend it .... or fix some broken features, make it look pretty again or even bring back your PSR from the dead with a little help from this manual!
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