CS4K-44 V3
9. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Colour loss 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.
Failed or loose connection.
Make sure the connection 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.
Failed or loose connection.
Make sure the connection is
good.
Input source features 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 resolution.
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 /%Unlock;
or select unlock in GUI
interface to unlock.
Cannot control the
device via IR remote
The battery has run flat.
Replace the battery.
The IR remote is broken.
Send it to an authorised
dealer for repair.
Beyond the effective range of
the IR signal or not pointing at
the IR receiver.
Adjust the distance and
angle and point directly at
the IR receiver.
The IR receiver connected to
IR IN port is not with carrier.
Change for an IR receiver
with carrier.
EDID management
does not work
normally
The HDMI cable is broken at
the output end.
Replace with another HDMI
cable which is in good
working condition.
There is a blank
screen on the display
when switching
The display does not support
the resolution of the video
source.
Switch again.
Manage the EDID data
manually to make the
resolution of the video
source automatically
compliant with the output
resolution.
Note: If your problem persists after following the above troubleshooting steps, seek
further help from an authorised dealer or our technical support.
