Clare Controls CM-MT8810-BT-70, User Manual, Page: 37 / 40

HDBaseT 8x8 Matrix Switcher User Guide 31
Dimensions
Troubleshooting and maintenance
 When there is a color losing or no video signal output, the cables may be broken
or are not well connected.
 When EDID management does not work normally, the HDMI cable may be
broken at the output end.
 When switching, there is a blank screen on the displayer, the displayer may not
support the resolution of the video source. Switch again or manage the EDID
data manually to make the resolution of the video source automatically comply
with the output resolution.
 When a user cannot control the switcher by computer through its COM port,
check the COM port number in the software. Make sure the COM port is in good
condition and the communication protocol is correct.
 When switching and there is no output image:
 Check that there is a signal at the input and the output.
 Check if the output port number is the same with the controlled one.
 Check that the input/output cables are not broken, nor the connectors are
loose. Try another cable.
 It is not uncommon for any switcher device to experience trouble when learning
3D EDID signal from a source device, such as a Blu-ray player. If your switcher
cannot learn the 3D EDID signal, connect the source device directly to the
display device (TV) and play the movie. Once the movie begins playing,
reconnect the source device to the switcher and relearn the EDID data.