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 45 (click to view)
Mittleres Türglas einsetzen 1. Mittlere Glasscheibe schräg von oben in das Türprofil an der Griffseite einführen (á). 2. Mittlere Glasscheibe nach unten absenken und Richtung Türunterkante bis zum Anschlag unter die untere Halterung schieben (à ).
Oberes Türglas einsetzen 1. Obere Glasscheibe schräg von oben in das Türprofil an der Griffseite einführen (á). 2. Glasscheibe absenken. Scheibe gegen die Federkraft an der Griffseite vor das Halteprofil an der Türunterkante legen und unter das Halteprofil schieben (à ). Die Glasscheibe muss festsitzen! Backofen-Tür wieder einhängen