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 4 (click to view)
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Do not drop the computer nor hit it with other equipment. Do not scratch the surface of the LCD screen. Turn off the computer and disconnect the AC power cord before cleaning.
Battery Pack Precautions
Handling
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Never put the battery pack in a fire, as it could explode and cause injury. Do not attempt to open or alter the battery pack. Do not place the battery where it might get hotter than 60°C (140°F).
Do not allow metal objects such as jewelry to short across the battery terminals, as it could heat up and explode. Do not allow liquids to come in contact with the battery pack. Avoid dropping the pack or other violent shock. Do not solder anything to the battery terminals.
Charging
Charge the battery pack only with the AC adapter included with your computer.
Discharging
Do not use the battery pack for any purpose other than powering the computer.
Storage
Store the battery pack in a cool and dry place. Never allow the temperature to exceed 60°C (140°F) during storage.