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Chapter 5: Troubleshooting and Maintenance
5. Troubleshooting and Maintenance
Table 5-1. Problems/Causes/Solutions.
Problem
Cause
Solution
Losing color or no video
signal output in HDMI
display.
The cables may not be
connected correctly or
may be broken.
Check whether the cables are
connected correctly and are in
working condition.
No HDMI signal output
in AVS-HDB-4TX while
local HDMI input is in
normal working state.
Cannot control AVS-
HDB-4TX by control
device (e.g. a PC)
through the RS-232
port.
Wrong RS-232 com-
munication parameters.
Make sure the RS-232 communi-
cation parameters are correct.
AVS-HDB-4TX is bro-
ken.
Contact Black Box Technical
Support at 724-746-5500 or
[email protected].
Static becomes stronger
when connecting the
video connectors.
Bad grounding.
Check the grounding and make
sure it is connected correctly.
If your problem persists after you follow the above troubleshooting steps,contact Black
Box Technical Support at 724-746-5500 or [email protected].
