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8. Troubleshooting
HDMI-TPS-RX220AK – User's Manual
102
Applied firmware package: v1.4.0 | LDC software: v2.4.0b3
8.1.
Use Case Studies
At first, check front panel LEDs and take the necessary steps according to their states. For more information
about status, LEDs refer to the
Status LEDs and Button Functions
section.
#diagnostic
Symptom
Root cause
Action
Refer to
Video signal
No picture on the
video output
Device or devices are not
powered properly
Check the receiver and the other devices
if they are properly powered; try to unplug
and reconnect them.
Cable connection
problem
Cables must fit very well, check all the
connectors (video and TPS cables).
No incoming signal
If the TPS LINK LED does not light, no
signal is present on the TPS input port.
Check the source device and the CATx
cable.
TPS mode problem
Check the actual TPS mode and the
selected modes of the extenders.
LW3
The output is muted
Check the mute state of output port.
LW2
LW3
Display is not able to
receive the video format
Check the emulated EDID; select another
(e.g. emulate the EDID of the display on
the input port).
LW3
HDCP is disabled
Enable HDCP on the input and output
port.
LW3
LW3
Not the desired
picture displayed
on the video
output
Video output is set to
test pattern (no sync
screen) statically
Check Test Pattern settings in the HDMI
output properties.
LW3
Video output is set to
test pattern (no sync
screen) as there is no
picture on video source
Check video settings of the source.
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.
Output port is muted
Check the output port properties.
LW2
LW3
Analog audio volume is
set low
Check the Analog audio output port
settings (volume).
LW3
HDMI output signal
contains no audio
HDMI mode is set to DVI Check the properties of the output port
and set to HDMI or Auto.
LW3
DVI EDID is emulated
Check the EDID and select and HDMI
EDID to emulate.
LW3
RS-232 signal
Connected serial
device does not
respond
Cable connection
problem
Check the connectors to fit well; check
the wiring of the plugs.
RS-232 settings are
different
Check the port settings of the transmitter
and/or the receiver and the connected
serial device(s). Pay attention to Link
and/or Local ports.
LW2
LW3
RS-232 mode is not right Check the RS-232 mode settings
(pass-through, control or command
injection)
LW2
LW3
Network
No LAN connection
can be established
Incorrect IP address is
set (fix IP)
Use dynamic IP address by enabling
DHCP option.
LW2
LW3
Restore the factory default settings (with
fix IP).
LW2
LW3
IP address conflict
Check the IP address of the other devices.