HDMI/IR/RS232 Twisted Pair PoC Extender
PTN Electronics Limited 9 www.PTN-electronics.com
6. Troubleshooting & Maintenance
Problems
Causes
Solutions
Output images in display
show with ghost
Incorrect setting on the
display
Check the display
’s setting
A cable of bad quality
Try another high quality
connection cable
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 extender is broken
Send
it
to
authorized
dealer for repairing.
Cannot control the device
by control device (e.g. a
PC) through RS232 port
Wrong
RS232
communication parameters
Make sure the RS232
communication parameters
are correct.
The device has already
been broken
Send
it
to
authorized
dealer for repairing.
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 RS232 / IR
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.
