All my Roland related links here:
+ Roland 100m
TR-606
+TB 303
+ Intro & Setting up
+ Pattern write
+ Track Write
+ TR 707 Drum
+ TR 808 Drum
+ TR 909 Drum
+ Roland TR 909 Programming Tutorial - getting started
+ Roland TR 909 - How to Program
+ Roland Tr 909 - Drum Mapping& Midi triggering
+ SE-02 (Studio Electronics / Roland)
+ Junos
+ PSU