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 3 (click to view)
CAMBIO DEL SENTIDO DE APERTURA DE PUERTAS Y SU PANELACI�N
Cambio de sentido de apertura de las puertas
FIG. 1
Si desea cambiar el sentido de apertura de las puertas, siga las siguientes instrucciones (fig. 1): 1. Desmonte los tiradores de las puertas(1). 2. Desmonte la bisagra inferior teniendo cuidado de que la puerta inferior no caiga. Si es preciso, puede inclinar el aparato hasta tener acceso a los tornillos que fijan la bisagra(3). 3. Saque la puerta inferior de la bisagra central(4). 4. Desmonte la bisagra central cuidando que no caiga la puerta superior y de no perder la arandela de plástico(5). 5. Saque la puerta superior de la bisagra superior(6). 6. Desmonte la bisagra superior. Para ello es necesario quitar la tapa a presión que cubre la bisagra(7). 7. Quite las tapas colocadas por presión en el lado opuesto de las bisagras inferior (si la lleva), central y superior y colóquelas en los agujeros ocupados antes por las mismas(8).