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Troubleshooting
The following table provides troubleshooting information. If further assistance is required,
contact a Crestron customer service representative.
DM-NVX Troubleshooting
The Power LED does not
illuminate.
The Green LED on the DM
OUT port does not illuminate.
The device cannot pass
HDCP video from the DM
OUT port.
The device cannot pass audio
and video from the HDMI
input.
The device cannot pass audio
and video from the RGB
input.
The device does not function
due to electrostatic
discharge.
10 • DM-TX-201-C: DigitalMedia 8G+ Transmitter
TROUBLE
POSSIBLE CAUSE(S)
The device is not receiving
power.
The device cannot establish a
link to the device connected
to the DM OUT port.
The display that is connected
to the DM OUT port is not
HDCP compliant.
The HDMI input is not
selected.
The HDMI source is not
transmitting.
The RGB input is not
selected.
The RGB source is not
transmitting.
The device is not grounded
properly.
CORRECTIVE ACTION
If the device is powered using
PoDM or HDBaseT PoE:
• Verify cable connections to
the DM OUT port.
• Verify that the equipment
connected to the DM OUT
port can provide power to this
device.
If the device is powered from the
included power pack, verify power
pack connections to the device
and to the power outlet.
Verify cable connections to the
DM OUT port.
Verify that HDMI IN content is
HDCP protected and that the
DM OUT amber LED is blinking.
Verify that HDMI is routed on the
device symbol.
Verify that the HDMI IN LED is
active.
Verify that RGB is routed on the
device symbol.
Verify that the RGB IN LED is
active.
Check that all ground connections
have been made properly.
Supplemental Guide – DOC. 6958D
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