UH-4U: 4K HDMI2.0 4x1 Switcher
U.T.E. electronic GmbH & Co. KG
20
www.ute.de
12. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Colour losing or no video
signal output in HDMI
display.
The connecting cables may
not be connected correctly
or it may be broken.
Check whether the cables
are connected correctly
and in working condition.
No HDMI signal output in
this switcher while local
HDMI input is in normal
working state.
Splash screen in output
devices.
Poor quality of the
connecting cable.
Change for another cable
of good quality.
Cannot control this
switcher by control device
(e.g. a PC) through RS232
port.
Wrong RS232
communication
parameters.
Make sure the RS232
communication parameters
are correct:
Baud rate:9600;
Data bit: 8; Stop bit: 1;
Parity bit: none
This switcher is broken.
Contact your authorized
dealer for checking.
Static becomes stronger
when connecting the video
connectors.
Bad grounding.
Check the grounding and
make sure it is connected
well.
Note:
If your problem still remaining after following the above troubleshooting
steps, please contact your local dealer or distributor for further assistance.
