Edirol USB Audio/MIDI Interface UA-20 User Manual

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73
Troubleshooting
Distortion occurs in the sound from devices connected 
to the input jacks
If you are inputting audio from 
Input jacks
, use the UA-20 
Input volume 
to reduce the 
input level. 
Sound from devices connected to the input jack is not 
heard in the headphones
Is the headphone volume set appropriately?
Turn the knob clockwise to adjust the volume.
Is the Input monitor switch turned on?
Is the Input select switch set correctly?
Volume from a device connected to the input jacks is 
too low
Are you using a cable that has a built-in resistor?
Use a cable without a built-in resistor (e.g., Roland PCS series).
Is the Input volume raised appropriately?
Turn the knob clockwise to adjust the volume.
Guitar sound is too weak
Connect your guitar to input jack L.
Set the Input select switch to GUITAR.