Lightware MMX6x2-HT200, User Manual

Page: 80 / 91

9. Troubleshooting MMX6x2-HT series – User's Manual 80
9
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 receiver end.
At first, check front panel LEDs and take the necessary steps according
to their states. For more information about front and rear panel LEDs
of the matrix refer to Front View - All Models and Rear View section.
Pictogram Legend
Section to connections/cabling.
Section to front panel operation.
Section to LDC software.
LW2
Section to LW2 protocol commands.
LW3
Section to LW3 protocol commands.
9.1. Use Case Studies
Symptom Root cause Action Refer to
Video signal
No picture on the
video output
Device(s) not
powered properly
Check the matrix and the other devices if they are
properly powered; try to unplug and reconnect
them.
4.2
Cable connection
problem
Cables must fit very well, check all the connectors.
3.3
No incoming
signal
No video signal is present on the HDMI/TPS
input ports. Check the source device and the
HDMI/TPS cables.
3.3.1
3.3.5
Not the proper
video port is the
active one
Check the video crosspoint settings. 4.2.1
5.4
LW2
6.3.6
LW3
7.4.3
Not the proper
interface is the
active one
If the source/display has more connectors,
check if the proper interface is selected.
Output port is
muted
Check the mute state of output ports. 5.5.2
LW2
6.3.2
LW3 7.4.1
Display is not able
to receive the
video format
Check the emulated EDID and select another
(e.g. emulate the display’s EDID on the input
port).
5.8
LW3 7.11
Image is green
or magenta
colored
Wrong colorspace
was chosen
The sink expects RGB color spaced signal,
but receives YCbCr. Check if the proper signal
type was set on the port properties window of
the outputs (DVI / HDMI / Auto) or check the
emulated EDIDs and select another one or check
the colorspace settings on the sink device.
4.4.5
5.5.8
Autoselect not
chooses the
requested input
Incorrect priority
settings
Check if the autoselect setting is enabled, priority
detect mode is selected, needed input is active
(not grey) and ticked, priority number text field is
not empty, there is no two or more same priority
number at input ports. Always verify the settings
with
Set priorities
button.
5.5.4
LW2
6.3.9
LW3
7.4.9
Î
Use Case Studies
Î
How to Speed Up the Troubleshooting Process
The following sections are available in the chapter:
  
