Lightware MMX4x2-HDMI User Manual page 118

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9. Troubleshooting
Symptom Root cause
HDCP is disabled
Not the desired Video output is set to
picture displayed test pattern (no sync
on the video screen) statically
output
Video output is set to
test pattern (no sync
screen) as there is no
picture on video source
No audio is Source audio volume is
present 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 HDMI mode was set
signal contains no to DVI
audio
DVI EDID is emulated
Action
Refer to
Enable HDCP on the input and output port.
LW3
LW3
Check Test Pattern settings in the HDMI
output properties.
LW3
Check video settings of the source.
LW3
Audio signal
Check the audio settings of the source.
Check the audio crosspoint settings.
LW2
LW3
Check the input port properties.
LW3
Check the output port properties.
LW2
LW3
Check the Analog audio output port settings
(volume).
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
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
MMX4x2 series – User's Manual
Symptom
5.5
Connected serial
7.5.17
device does not
7.5.18 respond
5.8
7.5.19
7.5.19
No LAN
connection can be
5.4
established
6.4.6
7.7.1
7.7.2
5.5.2
7.6.1
5.5.3
6.4.3
7.5.2
5.5.6
7.7.8
5.5.3
Front panel
7.5.20
buttons are out of
operation
5.8
7.18.1
Error messages
received always
CEC message
sending does not
work
Root cause Action
RS-232 signal
Cable connection problem Check the connectors to fit well; check
the wiring of the plugs.
RS-232 settings are Check the port settings of the transmitter
different and/or the matrix and the connected
serial device(s). Pay attention to Link
and/or Local ports.
RS-232 mode is not right Check the RS-232 mode settings (control,
command injection, or disconnected)
Messaging via serial port Check the serial messaging rules and/or
is not working apply escaping in the message.
Network
Incorrect IP address is set Use dynamic IP address by enabling
(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 protocol settings (LW2 / LW3)
and use the proper protocol commands.
The CEC feature is not Check the device
enabled in the connected documentation to enable the feature.
(third-party) device
118
Refer to
11.8
5.9.1
7.10
LW3
5.9.1
LW3 7.10
LW3 7.11
2.6.3
5.11
LW2 6.5.2
LW3 7.8.1
2.6.4
5.11
LW2 6.3.11
LW3
7.4.3
LW3 7.9
2.6.6
5.11.1
LW3 7.4.5
5.9
and/or its