92 Appendix 3: Basic Troubleshooting Checklists for Video
Part II: problem resolving attempt & troubleshooting
The following checklist helps you identify the problem and resolve it quickly. In case a specific
problem occurs, refer to its related section and follow the check items to resolve the problem.
Contact the service provider if the problem cannot be resolved as instructed in this checklist.
Possible problems are:
Power
Try the following if the display cannot be powered up.
Video Wall
• Power • Video Wall • Compatibility
• Pictures • Color Management
Check item
Check if
completed
Does the
problem still
exist?
Ye s No
Please try replace the power cord.
Check if the power cable has been properly connected.
Please try to connect the display to a different power outlet.
Please confirm that the power supply is enough to support the
power for all displays.
Make sure the power switch (usually located at the rear of the
display) is switched on.
Check item
Check if
completed
Does the
problem still
exist?
Ye s No
Please use the line-interactive RS232 cable (if applicable).
Please upgrade the firmware if it is not the latest version.
Please check if all cables are working properly.
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