Disklavier

Hi everybody,

I finally found that the piano I play at my pub is a SX100B1. The
display is still in japanese and I tried a reset turning the piano on
while pressing some keys on the disk unit (there are four). This gave me
the OS version (1.4I) and ran the test mode. After these operations,
high notes are always sustained and there is a two lines message in
japanese on the screen... Do you think this model can be used as a
master keyboard ? Is the manual available somewhere ? What is the reset
operation ? I don't manage to send midi notes via the midi out port,
except while playing a disk. Any help or information is welcome !

Thanks and best regards.

Jihem