4K Presentation Switcher with Soft Codec & Matrix Outputs
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9. Troubleshooting and 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.
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 still remaining after following the above troubleshooting steps, please
find further assistance.
