4K HDMI/Audio Fiber Optical Extender
PTN Electronics Limited 10 www.PTN-electronics.com
6. Troubleshooting & Maintenance
Problems
Causes
Solutions
Color losing or no video
signal output
The connecting cables may
not be connected correctly
or it may be broken.
Check whether the cables
are connected correctly
and in working condition.
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 display doesn’t
support the input
resolution.
enable the input to learn
the EDID data of the
output.
Power Indicator remains off
when powered on
Fail or loose power
connection
Check whether the cable is
connected correctly
EDID management does
not work normally
The HDMI cable/optical
fiber is broken
Change for another HDMI
cable/optical fiber which is
in good working condition.
Audio selection does not
work normally
The transmitter is 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.
