Edirol UA-20 User Manual

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Troubleshooting
Has your computer been set to enter Sleep mode?
If your computer enters Sleep mode, exit the software you are using, and then restart 
your computer. We recommend that you set your computer to not use Sleep mode.
Is OMS/FreeMIDI set correctly?
As described in 
FreeMIDI settings. Also make sure that the device for MIDI IN/OUT is correctly 
selected in the MIDI settings of your MIDI sequencer software.
Is the OMS setup enabled?
If a diamond-shaped symbol is not displayed at the left edge of the title area in the OMS 
setup window, the setup is not enabled. From the OMS File menu, choose “Make 
Current”
.
 (
Are you attempting to play back an audio CD using your computer's CD player? 
(Standard driver mode)
If you want to play an audio CD from your computer's internal CD-ROM drive, refer to 
Are the volume control faders raised? (Standard Driver mode/Windows XP/2000 
WDM driver)
Adjust the volume of the faders as described in 
Can’t play back / record MIDI
Has the MIDI device you are using been set correctly?
In order to record/play MIDI tracks using the UA-20, you must correctly install the 
UA-20 driver (
Also make sure that the input port and output port are set as follows in your software.
INPUT port
OUTPUT port
EDIROL UA-20 MIDI IN
EDIROL UA-20 MIDI OUT