9. Troubleshooting UMX-TPS-TX100 series – User's Manual 108
Symptom Root cause Action Refer to
Audio signal
No audio is
present on output
Source audio volume is
low or muted
Check the audio settings of the source.
Audio input port is
muted
Check the audio input port properties
5.5
6.3.6
7.5.1
Audio output port is
muted
Check the output port properties.
5.5
6.3.6
7.5.2
signal contains no
audio
HDMI mode was set to
DVI
Check the properties of the output port
and set the signal type to HDMI or Auto.
5.5.4
LW3
7.4.22
DVI EDID is emulated Check the EDID and select and HDMI
EDID to emulate.
5.7
7.14
RS-232 signal
Connected serial
device does not
respond
Cable connection
problem
the wiring of the plugs.
3.7.10
RS-232 settings are
different
Check the port settings of the transmitter
and the connected serial device(s).
5.8.1
7.8
RS-232 mode is not right Check the RS-232 mode settings (control,
command injection, or disconnected)
5.8.1
7.8.6
Network
No LAN
connection can be
established
Incorrect IP address is
Use dynamic IP address by enabling
DHCP option.
4.4.1
5.10.2
7.7.2
Restore the factory default settings (with
4.4.2
5.10.5
6.2.11
7.3.6
Check the IP address of the other
devices, too.
Symptom Root cause Action Refer to
GPIO
Connected device
does not respond
Cable connection
problem
the wiring of the plugs.
3.7.13
Output level
cannot be changed
The direction of the
selected pin is set to
input
Check and modify the direction setting
of the desired pin
5.8.3
6.5.1
7.13
Miscellaneous
Front panel
buttons are out of
operation
Buttons are locked Unlock the buttons
4.4.4
5.10.1
Error messages
received
continuously
Different protocol is set
commands.
5.8.1
7.8.1
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