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Troubleshooting
If no sound comes out of the system with the dac25.3 connected, there are
several areas to check. Either you are not getting an audio signal to your
preamplifier, or you don't have a good digital source feeding the dac25.3.
First, check to make sure your preamplifier, integrated amp, or receiver is
switched to the same input the dac25.3 is connected to. Test the connection and
the cables to make sure. Keeping the input selected and using the same cable,
connect this input to a known good source like a tuner or the analog output of a
CD player. If that works, then it is most likely not a connection problem between
the dac25.3 and the preamp, integrated amp, or receiver.
The next step is to check and see if the digital input is properly connected. Look
on the front panel of the dac25.3 to see if the lock light is illuminated. If it is not,
this is most likely the problem. Push the selector and toggle through all the
inputs to see if one locks. If one does not lock, you either have a bad digital cable
or you aren't getting a good digital signal. Try replacing the digital cable on the
input you've selected. For instance, if you are using a coax connection try
replacing the coax cable with another coax cable. If this doesn't work, try
selecting a different input (optical for instance) and try using the CD player's
optical output with an optical cable instead.
input
If you are using a USB connection, it is necessary for the computer to recognize
the dac25.3 as a connected device. Check in the computer's control panel under
USB devices and see if the dac25.3 is recognized. If not, with both the dac25.3
and your computer powered up, remove the USB cable from the computer and
then re-insert it. Watch the computer monitor for an indication it has found the
hardware. Apple computers may not automatically recognize the dac25.3. Apple
users check your System Preferences as suggested above.
If the lock light is lit and you're not getting any output, plug in a set of
headphones and turn up the to hear if you're getting any output. If you
are getting output through the headphones and you've verified that your cable is
good and properly connected to the correct input on your preamp, integrated, or
receiver, it's possible the tube is not properly seated in the tube socket or it has
failed. If you are familiar with tubes and comfortable checking it, please do. If
not, call your dealer or music hall for guidance.
volume