TMX88PRO AV
11. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Output image with video
snow.
Bad quality
connecting cable.
Try another high-quality
cable.
Failed 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.
Failed or loose
connection.
Make sure the connection is
good.
The product is faulty.
Send it to an authorised
dealer for repair.
POWER
indicator
doesn’t work or no
response to any
operation.
Failed connection of
power cord.
Make sure the power cord
connection is secure.
EDID management
does not work normally.
The HDMI cable is
broken at the output
end.
Replace with an HDMI cable
which is in good working
condition.
Static discharge when
connecting the video
connectors.
Poor 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.
Faulty RS232 port.
Send it to authorised dealer
for checking.
Cannot control the
device by front panel
buttons but can control
it through RS232 port
The front panel buttons
are locked.
Send command
/%Unlock;
to
unlock the front panel
buttons.
Note:
If your problem persists after following the above troubleshooting steps, seek
further help from your authorised dealer.
