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9. Troubleshooting
HDMI-3D-OPT series – User's Manual
83
Troubleshooting
Usually, if the system seems not to transport the signal as expected, the best
strategy for troubleshooting is to check signal integrity through the whole
signal chain starting from source side and moving forward to the receiver end.
Link to connections/cabling section.
Link to front panel operation section.
Link to LDC software section.
LW2
Link to LW2 protocol commands section.
LW3
Link to LW3 protocol commands section.
9.1.
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
Rear Panel Status LEDs - Transmitter
sections.
Symptom
Root cause
Action
Refer to
Video signal
No picture on the
video output
Device or devices are not
powered properly
Check the extenders 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 optical cables).
Optical cable became
contaminated
Use special fiber optical cable cleaning
equipment to clean it carefully.
No incoming signal
(transmitter)
No video signal is present on the HDMI/
DVI-D/DP input ports. Check the source
device and the HDMI/DVI/DP cable(s).
No incoming signal
(receiver)
If the Signal LED does not light, no signal
is present on the optical input port. Check
the source device and the fiber cable.
The input port is muted
Check the mute state of input port.
LW3
The output port 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 display’s EDID on the
input port).
LW3
HDCP is disabled
Enable HDCP on the input and output
ports.
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
properties of the output ports.
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.