Crestron
DM-RMC-SCALER-C
DigitalMedia 8G+ Receiver
Operations & Installation Guide – DOC. 7231B
DigitalMedia 8G+ Receiver: DM-RMC-SCALER-C
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23
Problem Solving
Troubleshooting
The following table provides corrective action for possible trouble situations.
If further assistance is required, please contact a Crestron customer
service representative.
DM-RMC-SCALER-C Troubleshooting
TROUBLE
POSSIBLE CAUSE(S) CORRECTIVE ACTION
PWR
LED does
not illuminate.
Device is not receiving
power.
Verify power supply
connections to the device and
to the power outlet.
PWR
LED
flashes.
Memory test fails while
the device boots up.
Power cycle the device.
DM LINK
LED
does not
illuminate.
Device cannot establish a
link to the device
connected to the
DM IN
port.
Verify cable connection to the
DM IN
port.
VIDEO
LED
does not
illuminate.
Device is not receiving
video signal.
Ensure proper video signal is
routed to device.
Device connected to the
HDMI OUT
port has not
sent the hotplug signal.
Power on device connected to
the
HDMI OUT
port and
ensure that it is switched to
the correct input.
VIDEO
LED is
green but video
on connected
display is black.
HDCP is blanking the
video output.
Verify that device connected to
HDMI output supports HDCP.
Green LED on
LAN
port does
not illuminate.
LAN network cable is not
connected to the
LAN
port or to the 10BASE-T/
100BASE-TX compatible
device.
Verify LAN network cable
connection to the
LAN
port
and to the compatible network
device.
LAN network cable is not
the proper type.
Verify that network cable
complies with EIA/TIA 568 and
the CAT5 specification.
LAN network cable is not
the proper length.
Verify that network cable is the
proper length. Cable length
must not exceed 330 feet
(100 meters).
10BASE-T/100BASE-TX
compatible device is not
receiving power.
Apply power to the network
device.
Device loses
functionality due
to electrostatic
discharge.
Device is improperly
grounded.
Check that all ground
connections have been made
properly.
NOTE:
For more advanced diagnostics, use the DMTool in Crestron Toolbox.
Summary of Contents for DM-RMC-SCALER-C
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