Product Manual — Doc. 8918B
DM-NVX-E760 and DM-NVX-E760C • 43
Troubleshooting
The following table provides troubleshooting information. If further assistance is required,
contact a Crestron customer service representative.
DM-NVX-E760(C) Troubleshooting
PROBLEM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
4K60 4:4:4 2-channel non-
HDR or 4K60 4:4:4 2-
channel HDR video is
intermittent.
The CATx cable connection
to the DM INPUT port is
faulty.
Check that the cable is terminated
properly and connected securely. If
necessary, replace the cable.
Crestron HDMI® cable is not
being used.
Use Crestron HDMI cable only.
Crestron HDMI cable
exceeds the maximum
length of 20 ft (6.1 m).
Use Crestron HDMI cable that does not
exceed 20 ft (6.1 m).
The display flashes to a
black screen momentarily.
Switching between HDR and
non-HDR content is
occurring.
No action required. Flashing to a black
screen may occur on certain TVs.
The video is not being
displayed, but the audio
can be heard.
The HDCP settings of one or
more DigitalMedia™ devices
in the signal path do not
support the HDCP level of
the source.
Ensure that the HDCP settings of all
DigitalMedia devices in the signal path
support the HDCP level of the source.
The display does not support
the HDCP level of the
source.
Ensure that the display supports the
HDCP level of the source.
An incorrect video source is
selected.
Switch the video source to the correct
input.
The video is intermittent.
The Ethernet or DM input
cable connection is faulty.
Verify that the cable is terminated
properly and connected securely.
If necessary, replace the cable.
A message indicating that
the resolution is
unsupported appears on
the display.
The incorrect EDID is
selected.
Select the correct EDID.
The resolution of the input is
not supported.
Change the resolution of the input.
There is no video or audio.
Cable connections are
faulty.
Verify that all cables are connected
securely.
The incorrect EDID is
selected for the input.
Select the EDID supported by the
devices in the signal path.
