Roland Edirol UA-25 Owner's Manual page 64

Troubleshooting
A substantial amount of noise is present in the guitar sound
Does the noise decrease when you turn down the volume of your guitar?
If the noise decreases when you turn down the volume of your guitar, the guitar pickup
may be affected by noise from your computer or display. Try locating the guitar as far
away from the computer as possible.
Insufficient volume from your guitar
Are you using the correct jack?
Connect your guitar to the INPUT 2 combo input jack.
Is the input impedance select switch set correctly?
Set the input impedance select switch to Hi-Z.
Insufficient volume from a mic
Is the input level appropriate?
Turn the input sensitivity knob toward the right to adjust the input volume.
Others
The volume changed when you resumed from Suspend or Hibernation
status
When Windows 2000 resumes from Suspend or Hibernation, the output volume
setting is changed due to a problem of Windows.
Using the Windows volume controls, adjust the USB audio (speaker) volume slider.
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