Supplemental Guide – DOC. 7932A
DM-TX-4K-202-C/DM-TX-4K-302-C: 4K DigitalMedia 8G+ Transmitters
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9
Troubleshooting
The following table provides troubleshooting information. If further assistance is required,
contact a Crestron customer service representative.
DM-TX-4K-202-C and DM-TX-4K-302-C Troubleshooting
TROUBLE
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Video is not displayed, but the
audio may 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.
Video is not displayed.
The desired input may not be
selected in DMTool.
Ensure that Auto mode is
selected or that the desired
input is selected in DMTool.
The HDMI video is
intermittent.
The HDMI cable connections are
faulty.
Verify that each end of the
cable is connected properly.
The LAN connection is
unresponsive.
The transmitter and another
DigitalMedia endpoint are both
connected to a DigitalMedia
switcher, and the LAN port of the
other endpoint is also connected to
an Ethernet switch.
When a DigitalMedia endpoint
is connected to a DigitalMedia
switcher, the LAN port of the
endpoint cannot be
connected to an Ethernet
switch. Disconnect the LAN
port from the Ethernet switch.
The transmitter 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.
(DM-TX-4K-302-C only)
Analog audio is not being
heard from the device
connected to the AUDIO IN
port.
The EDID is not set to 2-channel
audio.
Set the EDID to 2-channel
audio.
The analog audio input is not
programmed properly in SIMPL
Windows.
Ensure that the analog audio
input is programmed properly
in SIMPL Windows.
The volume is not set properly in
DMTool or in the SIMPL program
for the transmitter.
Verify that the volume is
properly set for the
transmitter.
(DM-TX-4K-302-C only)
Component or composite
video may not be displayed,
may be intermittent, or may
be missing color.
The VGA breakout cable
connections are faulty.
Ensure that the VGA breakout
cable connections are
correct.
(Continued on following page)
Summary of Contents for DM-TX-4K-202-C
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