User manual
miniDSP Ltd, Hong Kong / www.minidsp.com / Features and speci fi cations subject to change without prior noti ce  42 
6.4  TROUBLESHOOTING 
The following table lists the most common causes of issues with the nanoAVR DL. If following this table does not 
provide a solution, see Obtaining Support below. 
Item# 
Symptoms 
Troubleshooting recommendation 
1 
Cannot install software 
a.  Confirm that you downloaded and installed the required 
frameworks first (see Software Installation). 
2 
The Dirac activation screen 
does not recognize the serial 
number 
a.  Do not use the serial number printed on the label of the unit. 
You must use the serial number obtained from the firmware 
using the nanoAVR DL Utility program. 
3 
The license validation screen 
doesn’t accept my username 
and password 
a.  The “username” must be the email address that you used 
when activating your license on the Dirac Live activation 
screen. Check that you are using the same email address and 
password. 
4 
The nanoAVR doesn’t appear 
in the Sound System tab 
a.  Check that the USB cable to the nanoAVR DL is firmly 
connected. 
b.  Check that you do not have any other program running that is 
attempting to communicate with the nanoAVR DL, such as the 
nanoAVR DL utility program. 
c.  Check that you have the miniDSP version of the software 
installed, called Dirac Live Calibration Tool For miniDSP. 
d.  Go to the Sound System tab and click the Rescan button. 
5 
The measurement test signal 
produces no output 
a.  Check the Output volume slider. 
b.  Ensure that the nanoAVR DL processor is connected correctly 
into the audio system. 
c.  Ensure that an HDMI video source is connected to the nanoAVR 
DL, that the source is selected, and not asleep. 
d.  Check that the downstream device (AVR or AVP) has the 
nanoAVR DL processor selected for input. 
e.  Check that any downstream volume control is not set to zero. 
f.  Check that no downstream device is muted. 
6 
No input from measurement 
microphone 
a.  Check that the USB cable to the UMIK-1 is securely seated 
b.  Check that the UMIK-1 is selected in the Mic config tab. 
7 
Insufficient recording level 
a.  Increase microphone level in the Output & Levels tab. 
b.  Go to the Control Panel and view the Recording tab of the 
Sound pane. Select the UMIK-1 and view its Properties. In 










