AVG-TMX88PRO
8. Troubleshooting & Maintenance
Problems
Causes
Solutions
Colour loss or no video
signal output
The connecting cables may
not be connected correctly or
faulty.
Check whether the cables
are connected correctly and
are in good working
condition.
Failed or loose connection.
Make sure the connection is
secure.
No output image when
switching
No signal at the input /output
connectors.
Check with oscilloscope or
multimeter if there is any
signal at the input/ output
end.
Failed or loose connection.
Make sure the connection is
secure.
Input source contains HDCP
whilst the HDCP compliance
is switched off.
Send command /%[Y]/[X]:1.
or change the HDCP
compliance status in the
GUI.
The display doesn’t support
the input resolution.
Switch to another input
source or enable the display
to learn the EDID data of the
input.
Cannot control the device via
front panel buttons
Front panel buttons are
locked.
Send command /%Unlock;
or select unlock in GUI
interface to unlock
Cannot control the device via
IR remote
The battery has run out.
Change battery.
The IR remote is faulty.
Send it to authorized dealer
for repairing.
Beyond the effective range
of the IR signal or not
pointing at the IR receiver
Adjust the distance and
angle and point right at the
IR receiver.
The IR receiver connected to
IR IN/ IR ALL IN port is not
with carrier
Change to an IR receiver
with carrier.
Power Indicator remains off
when powered on
Failed or loose power
connection
Check whether the cables
are connected correctly
EDID management does not
work normally
The HDMI cable is faulty at
the output end.
Change to another HDMI
cable which is in good
working condition.
There is a blank screen on
the display when switching
The display does not support
the resolution of the video
source.
Switch again.
Manage the EDID data
manually to make the
