Roland JV-1010 用户手册

If you will not be using the separately available RAD-50 rack-mount 
adaptor, attach the rubber feet that were supplied with the JV-1010, as 
shown in the figure. Use the small holes on the bottom as a guide for 
positioning the rubber feet when attaching them.

fig.1-01.e

When installing on the rack-mount adaptor (RAD-50; sold separately), use 
the screw (M4 x 8) included with the rack-mount adaptor.

fig.1-02.e

affix the supplied rubber feet onto the bottom of the unit

Screw (M4 x 8)

When mounting the unit 
using the rack-mount 
adaptor, install it onto the 
rack-mount adaptor 
without attaching the 
rubber feet.