AVG-SC121D
7. Troubleshooting & Maintenance
Problems
Causes
Solutions
Color loss or no video
signal output in HDMI
display
The connecting cables
may not be connected
correctly or may be faulty
Check whether the cables
are connected correctly and
in working condition.
No HDMI signal output in
the device while local
HDMI input is in normal
working state
Output images in display
show ghosting
Incorrect setting on the
display
Check the display’s setting
A cable of poor 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 output end.
Fail or loose connection
Make sure the connection is
good
The extender is faulty
Send it to authorized dealer
for repair.
Cannot control the device
with IR remote
The battery is flat
Change for another battery.
The IR remote is out of
range or faulty
Send it to authorized dealer
for repair.
Cannot control the device
via control device (e.g. a
PC) through RS232 port
Wrong RS232
communication
parameters
Make sure the RS232
communication parameters
are correct.
The device is broken
Send it to authorized dealer
for repairing.
Static becomes stronger
when connecting the
video connectors
Poor grounding
Check the grounding and
make sure it is connected
well.
If your problem persists after following the above troubleshooting steps, seek further
help from an authorized dealer or our technical support.
Summary of Contents for AVG-SC121D
Page 25: ...AVG SC121D 6 Panel Drawing ...
