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.
The manual was properly scanned and perfectly readable. The only small problem is that I couldn't use my dear Ctrl + F to find a word I needed.
Text excerpt from page 25 (click to view)
Maintenance
Defrosting
Defrosting is automatic in this model.
Regular cleaning
Clean the equipment regularly. Don't use detergents, abrasive or strongly odorous cleaners, waxy polishing agents or disinfectants or alkoholic products for cleaning the equipment. Before cleaning pull out the wall plug of the equipment from the outlet.
Internal cleaning
Clean the internal parts of the equipment and the accessories with warm water and sodium bicarbonate (5 ml to 0.5 litre of water). Rinse and dry everything thoroughly. Clean the door seal profile with clean water.
External cleaning
Clean the external parts of the equipment with warm water and sodium bicarbonate (5 ml to 0.5 litre of water). It is recommended to remove the dust and dirt deposited on the back side of the equipment and on the condenser once or twice a year, and to clean the evaporation tray on top of the compressor. After cleaning, reconnect the equipment to the mains supply.