SoundPals User's Guide
DAC-20 • 15
DAC-20 Troubleshooting
The table below lists several DAC-20 problems, and provides a variety
of “checklist” procedures designed to solve them.
Problem
Procedure
No signal at
any analog
output.
•
Is power applied? Check the power
LED and power supply.
•
Is a valid AES input signal
connected? Check
ERR
LED off.
•
Is the input signal silent? Check the
signal source.
No audio on
XLR outputs.
•
Are the outputs connected correctly?
Check
+
ve
to pin 2,
−
ve
to pin 3
(balanced) or hot to pin 2, ground to
pin 1/shell, pin 3 open (unbalanced).
No audio on
headphone
output.
•
Is the volume control turned up?
•
Is the phone jack connected
correctly? Check left hot to tip, right
hot to ring, ground to sleeve.
Emphasis on
input is not
corrected.
•
Does AES channel status indicate
emphasis? Check
EMPH
LED on.
•
Is the sampling frequency within 4%
of 48 kHz, 44.1 kHz or 32 kHz?
•
Does the emphasis use 50/15
µ
s time
constants?
NOTE
Please contact the GPS factory if the problem still
exists after completing the above procedures.
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