DV-HSW4K-41AUD, HDMI 2.0 4x1 Switcher
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10. Troubleshooting & Maintenance
Problems
Potential Causes
Solutions
Color loss or no video
signal output on HDMI
display.
The connecting cables
may not be connected
correctly, or they may be
broken.
Check whether the cables
are connected correctly
and in working condition.
No HDMI signal output
from this switcher while
local HDMI input is in
normal working state.
Splash screen on output
devices.
Poor quality of the
connecting cable.
Change out cable for
another cable of good
quality.
Cannot control this
switcher with control
device (e.g., a PC)
through RS232 port.
Wrong RS232
communication
parameters.
Make sure the RS232
communication
parameters are correct.
This switcher is broken.
Send to authorized dealer
for repairing.
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 exists after following the above troubleshooting steps, please
contact your local dealer or distributor for further assistance.
11. Customer Service
Before returning any equipment for repair, please be sure that it is adequately packed
and cushioned against damage in shipment, and that it is insured. We suggest that you
save the original packaging and use it to ship the product for servicing. Also, please
enclose a note giving your name, address, phone number and a description of the
problem.
NOTE: all equipment being returned for repair must have a Return authorization (RMA)
Number. To get a RMA Number, please call the FSR Service Department (1-800-332-
FSR1). Please display your RMA Number prominently on the front of all packages.
