E-81ComputerUSB port USB cableUSB connectorKeyboard USB port3 Click the [System] icon. On the dialog box thatappears, click the [Hardware] tab, and then clickthe [Driver Signing] button.4 On the dialog box that appears, select [Ignore], andthen click [OK].NOTE• Company and product names used herein aretrademarks of their respective owners.Using the USB portNote that you need to purchase a commercially available USBcable to connect the keyboard to a computer using the USBport. Once you establish a USB connection between thekeyboard and a computer, you can exchange data betweenthem.To connect to a computer using theUSB port1 Use a commercially available USB cable to connectthe keyboard to the computer.DATA ACCESS Lamp• The DATA ACCESS lamp lights whenever the keyboard isexchanging data with a connected computer over a USBcable connection. Never disconnect the USB cable while theDATA ACCESS lamp is lit.General MIDIThis keyboard supports General MIDI, so it can be used toplay commercially available pre-recorded General MIDI dataand General MIDI data send to it from a personal computer.See the separate Appendix A for details about the tones thatare available with GM tones numbered 000 to 127.MIDI SettingsYou can use the parameter setting procedure (page E-72) tochange the settings of the MIDI parameters described below.See pages E-73 to E-74 for details about the setting menu andprocedure. MIDI In Chord JudgeThis parameter determines whether note data received froman external device should be interpreted as an autoaccompaniment chord fingering. Turn on this parameterwhen you want to control auto accompaniment chords froma computer or other external device.on: Causes note data input through USB port to beinterpreted as auto accompaniment chord fingerings.The channel specified by the keyboard channel is usedfor specifying chords.oFF: Turns off “MIDI In Chord Judge”. Accomp/Song MIDI Out (Accompaniment/Song MIDI Out)Turn on this parameter when you want sound auto accom-paniment or Song Memory on an external devices soundsource.on: Outputs auto accompaniment or Song Memory as MIDImessages through the keyboard’s USB port.oFF: Does not output auto accompaniment or Song Memory.NOTE• For detailed information about MIDI Implementation, visitthe CASIO website at: http://world.casio.com/.Connection to a Computer