This RD 77 users manual dates from 1977; the year of the RD launch. It describes the full opeating instructions

Front cover

Page 2-3 Description of terms (active, passive, expansion, compression plus use of the volume and tone controls

Page 4-5 Diagram of parts, plus details of how to activate the different settings

Page 6-7 Description of sensitivity adjustment, pickup, bridge and truss rod adjustment

Page 8 Back cover

RD77 was simply an early name for the RD series. In 1979 the were updated and named RD79 - the guitars had a shorter scale, but the basses kept their 34½" scale. The basses had some changes however - primarily the arrangement of switches that controlled the bass, but also different finish options. Functionally there was no difference.