4K Compact Matrix
7. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Loss of colour or no
video signal output
The connecting cables
may not be connected
correctly or it may be
broken
Check whether the
cables are connected
correctly and in working
condition.
Make sure the
connection is good
Make sure the connec-
tion is good
No output image when
switching
No signal at the input /
output end
Check with oscilloscope
or multimeter if there is
any signal at the input/
output end.
Fail or loose connection Make sure the
connection is good
Input source is with
HDCP while the HDCP
compliance is switched
off.
Send command /%[Y]/
[X]:1. or change HDCP
compliance status in
GUI.
The display doesn’t
support the input reso-
lution.
Switch for another input
source or enable the
display to learn the
EDID data of the input.
Cannot control the
device via front panel
buttons
Front panel buttons are
locked.
Send command /%Un-
lock; or select unlock in
GUI interface to unlock
Cannot control the
device via IR remote
The battery has run out. Change for new battery.
The IR remote is
broken.
Replace the remote
Beyond the effective
range of the IR signal
or not pointing at the IR
receiver
Adjust the distance and
angle and point right at
the IR receiver.
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