Compact Scaler Switcher (with PoH)
33
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.
Static becomes stronger
when connecting the video
connectors
Bad grounding
Check the grounding and
make sure it is connected well.
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.
Cannot control the device
by front panel buttons while
can control it through
RS232 port
The front panel buttons
are locked
Send command
50605%
to
unlock the front panel buttons.
If your problem persists after following the above troubleshooting steps, seek further
help from authorized dealer or our technical support.
