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QuickMedia™ Distribution Amplifier Crestron QM-DA
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.
QM-DA Troubleshooting
TROUBLE POSSIBLE CAUSE(S) CORRECTIVE ACTION
Device does not
function.
Device is not receiving
power from a Crestron
power source.
Use the provided Crestron
power source. Verify
connections.
Device is not receiving
sufficient power.
Use the Crestron Power
Calculator to help calculate
how much power is needed
for the system.
Power is not being
supplied via the large 5
mm Cresnet port.
Ensure power is supplied via
the large 5 mm Cresnet port.
Power LED does
not illuminate.
QM-DA is not receiving
power.
Verify cable plugged into the
large 5 mm Cresnet port is
secure.
Power is not supplied to
branch.
Apply sufficient power to
branch.
Faulty Cresnet wiring or
Faulty Cresnet device
on hub segment.
For QM-DA-16, move
Cresnet connections to a port
on another hub segment.
Connected QM
devices are not
receiving power.
Remove each Cresnet
connection on the segment
until power is restored to the
remaining devices on the
segment.
Cables improperly
connected.
Verify all QM cables are
secure.
Poor picture or
sound quality.
Incorrect skew settings
in associated devices.
Use QM Tools software to set
correct skew settings for each
QM-RMCRX-BA in the
system.
Loss of
functionality due
to electrostatic
discharge.
Improper grounding.
Check that all ground
connections have been made
properly.
12 • QuickMedia™ Distribution Amplifier: QM-DA Operations Guide – DOC. 6547A