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.
Text excerpt from page 9 (click to view)
Maintenance of your Refrigerator-Freezer
Prior to undertaking any maintenance operation, be sure to unplug the appliance.
Defrosting of the freezer
The inner walls of the freezer become gradually covered with a layer of frost keeping in mind not to open the door frequently and keeping the food wrapped up in closed bags. Whenever the thickness of ice reaches 5 mm. the frost should be removed. Here to proceed as follows: 1... Remove all food staffand place it in the coolest possible place. 2... Never pull up the sticked ice, you must wait untill it is melted, when the ice is soft you can remove it by helping yourself with a plastic ice-scraper, never use sharp objects, or heating households because the appliance could be seriusly damaged. 3... Once removed the ice clean and dry the inside with a soft piece of cloth. 4... You can plug it in again.