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DM-MD8X1-4K-C and HD-MD8X1-4K: 4K Scaling Auto-Switchers
Supplemental Guide – DOC. 7718B
Troubleshooting
The following table provides troubleshooting information. If further assistance is required,
contact a Crestron customer service representative.
DM-MD8X1-4K-C and HD-MD8X1-4K Troubleshooting
TROUBLE
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
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.
The video is intermittent.
The HDMI cable connections are
faulty.
Verify that each end of the
cable is connected properly.
A message indicating that the
resolution is unsupported
appears on the display.
The scaler is not set to a resolution
that the display can support.
Change the scaler resolution
setting to a resolution that the
display can support.
(DM-MD8X1-4K-C only) The
DM-MD8X1-4K-C cannot
establish a link to the device
that is connected to the
DM OUT port. The DM link
status LED is off.
The cable connections are faulty.
Verify that each end of the
cable is properly connected. If
necessary, check the cable
terminations.
The EDID is not set to 2-channel
audio in the web interface.
Set the EDID to 2-channel
audio.
The analog audio output is not
programmed properly in SIMPL
Windows.
Ensure that the analog audio
output is programmed
properly.
The volume is not set properly in
web interface or in SIMPL
Windows.
Verify that the volume is set
properly.
The mixer is not enabled on the
selected input in the web interface.
Ensure that the mixer is
enabled on the selected input.
The video flickers or drops
when the DM-MD8X1-4K-C
or HD-MD8X1-4K is touched
or when metal in the vicinity of
the device is touched.
The device is not properly
grounded.
Ensure that the
device is properly grounded.
NOTE:
If, for any reason, the factory default settings of the DM-MD8X1-4K-C or
HD-MD8X1-4K must be restored, do the following: From the Tools menu in the Crestron
Toolbox™ application, select Text Console and enter the following command:
restore
