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 15 (click to view)
HOW TO SET THE SLEEP TIMER Press the SLEEP button over and over. Each press changes the amount of time the radio will play before shutting off automatically, 60 through 0 minutes. HOW TO USE THE DIAL LIGHT (button on top of radio) The LIGHT button causes the display to be illuminated. After 10 seconds, or when the LIGHT button is pressed again, the light will go out.