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CHAPTER 10: TROUBLESHOOTING
TABLE 10-1. PROBLEMS/CAUSES/SOLUTIONS
PROBLEM
POTENTIAL CAUSE
SOLUTION
Losing color or no video signal output
1. The cables may not be connected correctly or
may be broken.
2. Failed or loose connection.
1. Check whether the cables are connected
correctly and are in working condition.
2. Make sure the connection is good.
No HDMI signal output in display while
local output is working normally
1. Loose cable connection.
2. The display doesn’t support the resolution
1. Reconnect the devices and make sure they’re
well contacted.
2. Set the output resolution to another supported
resolution or to Auto.
No splash screen in output devices
1. Poor quality of the connecting cable.
2. Poor contact at the input/output end.
1. Change for another cable of good quality.
2. Reconnect the devices and make sure they’re
well contacted.
Cannot control the device via front
panel buttons
Front panel buttons are locked.
Send command /%Unlock; to unlock..
Cannot control the switcher via
a control device (a PC) through
the RS-232 port
1. Wrong RS-232 communication parameters.
2. The switcher is broken.
1. Make sure the RS-232 communication
parameters are correct.
2. Contact Black Box Technical Support
at 877-877-2269 or [email protected]
Static becomes stronger when
connecting the video connectors
Bad grounding.
Check the grounding and make sure it is
connected well.
NOTE: If the problem persists after following the above troubleshooting steps, contact Black Box Technical Support at 877-877-2269
or [email protected]
