10. Troubleshooting MMX8x4-HT series – User's Manual 173
Symptom Root cause Action Refer to
Audio signal
No audio sounds
Not proper audio mode
was set
6.5.2
6.5.3
8.9.1
Audio channel is muted or
volume is too low.
Check the audio properties.
3.2.2
6.8
8.9
8.10
Check the properties of the output port
and set to HDMI or Auto.
3.2.2
6.5.3
8.7.20
Check the EDID and select an
HDMI EDID to emulate.
3.2.3
6.10.2
8.8
RS-232 signal
Connected serial
device cannot be
controlled
Cable connection problem
the wiring of the plugs.
5.1
Serial settings are
different
Check the port settings of the matrix
and the connected serial device(s). Pay
6.11.1
8.11
Symptom Root cause Action Refer to
Ethernet
No LAN
connection can
be established
Change the IP address to a not reserved
one or enable DHCP if DHCP server
exists in the network.
3.2.1
6.13.2
7.5
8.16.3
Incorrect IP address is set
(direct connect)
Restore the factory default settings (with
3.2.1
6.13.2
7.3.13
LW3
8.4.12
Event Manager
Action does not
start, although
condition is
completed.
Too much delay was set. Check the delay setting on the event
Event Editor window. Try it again with
Apply button).
6.11.7
The event was not
Both Condition and Action (and
optionally the Delay) need clicking to
verify them. Check if the Event is Enabled
on the Events tab.
6.11.7
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