User Manual
PT-PSW-42
35
Troubleshooting & Maintenance
Problems
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.
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 RS232 / front
panel buttons/GUI.
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.
Summary of Contents for PT-PSW-42
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