Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
Good list of manuals. I found a very rare one and easily get. Should be promptly to download, as we must to wait hours even after confirmed payment.
Text excerpt from page 64 (click to view)
INSTALLATION IN THE RACK
1. Remove the rubber legs (6 pcs.) on the bottom of the unit. � Use a flat-blade screwdriver and remove the screws.
Remove the rubber legs.
2. Install the rack mounting brackets on both sides of the unit. � Using the mounting screws (4 pcs.) for the rack mounting brackets, fix them firmly.
Mounting screws for rack mounting brackets (accessories)
Rack mounting brackets (accessories)
3. Install the unit in the rack. � Fix the unit firmly with the rack mounting screws (4 pcs.).
Important: � The cooling fan inside the unit is perishable and must be replaced periodically. � Do not block the ventilation openings or slots in the cover to prevent the unit from overheating. � If the rack is subject to vibration, secure the rear of the unit to the rack using additional mounting brackets (not included). � Keep the temperature in the rack below +45 °C (113 °F). � When installing, install the unit lower in the rack with a space equivalent to about 1 unit (44 mm) or more separating it from the other appliances.