User`s manual

2.3 USB port

z GPP-3 is an USB MIDI class compliant product; you do not have to install a

separate device driver on WINDOWS XP/MAC OS X.

z When you connect the GPP-3 to your computer via the USB port, the OS will

automatically install the device driver, and show the installed device driver as

“USB Audio Device”.

3 Operation

3.1 Power on

z You can supply the power via the USB port or an AC adaptor, then switch on the

product. After that you can use the product to send out MIDI message through

the MIDI OUT or the USB port.

z If you would like to use PEDAL 1-3 only, there is no need to supply power to the

product.

z The AC adaptor is optional. Please do not use an AC adaptor, other then the

optional one, to avoid possible damage to the product.

z When powered on, the pedal LEDs are off by default.