Roland PCR-50 用户手册

Names of things and what they do

A commercially available security lock can be attached here.
http://www.kensington.com/

Connect the include AC adaptor to this jack. Insert the plug firmly so it won’t get unplugged 
accidentally.

BUS power can be used when the PCR-30/50/80 is connected to your computer via a USB 
cable. In this case, the power will be supplied from your computer via the USB cable. To use 
the PCR-30/50/80 with bus power, set the power switch to 

.

Use this when connecting the PCR-30/50/80 to your computer via a USB cable.

These can be connected to the MIDI connectors of other MIDI devices to transmit and receive 
MIDI messages.

You can connect the appropriate type of pedals to these jacks and use them as controllers.

You can also assign MIDI messages to these controllers as desired.

Power on using the AC adaptor

Power is off

Power on using a USB cable (when not using the AC adaptor)

Connect a pedal switch to this jack and use it as a Hold pedal.

Connect an expression pedal to this jack and use it to control tone 
or volume in real time.

fig.rear_50