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 25 (click to view)
Acerca del teclado
Acerca del teclado
El teclado VAIO® tiene la disposición estándar e incluye teclas adicionales que cumplen funciones especÃficas. Teclado VAIO
Número Bloqueo Silencio Standby (En espera) Mayúsculas Bloqueo Bloqueo Desplazamiento
DESCRIPCIÃ�N Las doce teclas de función, situadas en la fila superior del teclado, se utilizan para realizar ciertas tareas. La tarea relacionada con cada tecla de función varÃa según la aplicación. Pulse un botón para subir (+) o bajar (-) el volumen de los altavoces.
Control de volumen
Silencio
Pulse el botón para enmudecer los altavoces. Vuelva a pulsar el botón Silencio para restablecer el sonido.