4K 8x8 HDMI Matrix Switcher-N
25
7. 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
Input source is with HDCP
while
the
HDCP
compliance is switched off.
Send command /%[x]:[1].
to
change
HDCP
compliance status.
The
display
doesn’t
support
the
input
resolution.
Switch for another input
source
or
enable
the
display to learn the EDID
data of the input.
No output on the amplifiers
connected to audio output
ports
The amplifiers are not able
to decode HDMI audio
Change for amplifiers that
are capable to decode
HDMI audio.
Cannot control the device
via front panel buttons
Front panel buttons are
locked.
Send command /%Unlock;
to unlock
Cannot control the device
via IR remote
The battery has run off.
Change for new battery.
The IR remote is broken.
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.
Power Indicator remains off
when powered on
Fail
or
loose
power
connection
Check whether the cables
are connected correctly
EDID management does
not work normally
The HDMI cable is broken
at the output end.
Change for another HDMI
cable which is in good
working condition.
