Batteries should always be installed or replaced before connecting any other devices. This way, you can prevent malfunction and damage.
If the battery (batteries) run extremely low, the sound may distort / interruptions in the sound may occur at high volume levels, but this does not indicate a malfunction. If this occurs, please replace the battery (batteries) / use the AC adaptor (sold separately).
If operating this unit on batteries, please use alkaline batteries.
Even if batteries are installed, the unit will turn off if you connect or disconnect the power cord from the AC outlet while the unit is turned on, or if you connect or disconnect the AC adaptor from the unit. You must turn off the power before you connect or disconnect the power cord or AC adaptor.
Never strike or apply strong pressure to the display.
This unit allows you to display using an LED at high speed. For some people, viewing such images can cause headache, nausea, or other discomfort. Do not use this unit to create video that might cause these types of health problems. Roland Corporation will accept no responsibility for any such health problems that may occur in yourself or in viewers.
