Lightware MMX4x2-HT200 User Manual page 86


  
9. Troubleshooting
Symptom Root cause
No audio is present Source audio volume is
on output low or muted
Not the proper audio
port is the active one
Input port is muted
Output port is muted
Analog audio volume is
set low
HDMI output signal HDMI mode was set to
contains no audio DVI
DVI EDID is emulated
Connected serial Cable connection
device does not problem
respond
RS-232 settings are
different
RS-232 mode is not right Check the RS-232 mode settings (control,
Messaging via serial
port is not working
Action Refer to
Audio signal
Check the audio settings of the source.
Check the audio crosspoint settings.
LW2
LW3
Check the input port properties.
LW2
LW3
Check the output port properties.
LW2
LW3
Check the Analog audio output port
settings (volume).
LW3
LW3
Check the properties of the output port
and set to HDMI or Auto.
LW3
Check the EDID and select and HDMI
EDID to emulate.
LW3
RS-232 signal
Check the connectors to fit well; check
the wiring of the plugs.
Check the port settings of the transmitter
and/or the matrix and the connected
serial device(s). Pay attention to Link
LW3
and/or Local ports.
command injection, or disconnected)
LW3
Check the serial messaging rules and/or
LW3
apply escaping in the message.
MMX4x2 series – User's Manual
Symptom
No LAN
connection can be
established
5.3
6.3.6
7.7.3
5.4
6.3.6
7.7.1
5.4
6.3.6
7.7.2
5.4.7
7.7.18
7.7.19
Front panel
5.4.3
buttons are out of
operation
7.6.20
5.6
Error messages
7.13
received always
3.3.7
5.7.1
7.10
5.7.1
7.10.6
7.11.3
Root cause Action
Network
Incorrect IP address is Use dynamic IP address by enabling
set (fix IP) DHCP option.
Restore the factory default settings (with
fix IP).
IP address conflict Check the IP address of the other
devices, too.
TCP/IP or UDP Check the TCP/IP / UDP messaging rules
messaging via LAN port and/or apply escaping in the message.
is not working
Miscellaneous
The buttons are locked Disable control lock.
Different protocol is set Check the port protocol settings (LW2
/ LW3) and use the proper protocol
commands.
86
Refer to
4.3.1
5.9.2
LW2 6.4.2
LW3 7.9.2
4.3.2
5.9.4
LW2
6.2.11
LW3 7.5.6
LW3 7.11.1
LW3 7.11.2
4.3.3
5.9.1
LW3 7.5.3
5.7.1
LW3 7.10.1