4K 4x4 HDMI2.0 Matrix Switcher
31
There is a blank screen on
the display when switching
The display does not
support the resolution of
the video source.
Switch again.
manually to make the
resolution of the video
source automatically
compliant with the output
resolution.
Cannot control the device
by control device (e.g. a
PC) through RS232 port
Wrong connection
Check to ensure the
connection between the
control device and the unit.
Wrong RS232
communication parameters
communication
parameters: Baud rate:
9600; Data bit: 8; Stop bit:
Broken RS232 port
Send it to authorized
dealer for checking.
Static becomes stronger
when connecting the video
Bad grounding
Check the grounding and
make sure it is connected
Cannot control the device
by RS232 / IR remote /
The device has already
been broken.
Send it to authorized
dealer for repairing.
If your problem persists after following the above troubleshooting steps, seek further
help from authorized dealer or our technical support.
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