Compact Scaler Switcher (with PoH)
7. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Output image with
snowflake
Bad quality of the
connecting cable
Try another high quality cable.
Fail 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.
Fail or loose connection
Make sure the connection is
good.
The switcher is broken
Send it to authorized dealer for
repairing.
POWER
indicator doesn’t
work or no respond to any
operation
Fail connection of
power cord.
Make sure the power cord
connection is good.
EDID management does
not work normally
The HDMI cable is
broken at the output
end.
Change for another HDMI
cable which is in good working
condition.
Cannot control the device
by control device (e.g. a
PC) through RS232 port
Wrong RS232
communication
parameters.
Type in correct RS232
communication parameters.
Broken RS232 port.
Send it to authorized dealer for
checking.
If your problem persists after following the above troubleshooting steps, seek further
help from authorized dealer or our technical support.