LED Video Wall Support, Repair & AMC
Screen not working as expected? Our technical team helps you fix it, whether we installed your LED video wall or another company did. Start with the quick troubleshooting guide below, or talk to our support team directly.
Troubleshooting & Knowledge Base
Get answers to common LED display issues quickly below.
Troubleshooting & Knowledge Base
Find a Quick Fix
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Quick Troubleshooting Guide
- Follow the step-by-step answers below to identify and fix basic problems.
- If the issue remains unresolved, reach out to our support team for additional help.
Why is my LED video wall screen blank?
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Check if the media player or computer is powered ON -
Ensure the LED controller is switched ON
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Verify HDMI / DVI cable connection
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Check CAT-6 cable between controller and display
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Confirm main power supply (MCB) is ON
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Restart the media player and controller
Why is my LED display flickering or showing incorrect colors?
Flickering or color issues are typically due to loose cables, damaged signal wires, or incorrect resolution settings.
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Check HDMI / input cable connection
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Replace damaged cables if needed
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Verify CAT-6 data cable connection
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Check display resolution settings
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Restart the system
Why is part of my LED screen blank or flickering?
Partial display issues occur due to cabinet power failure, loose connections, or SMPS malfunction.
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Check power supply to affected cabinets
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Inspect cabinet power cable connections
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Verify data cable connections between cabinets
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Check SMPS inside cabinet
Why is one LED cabinet blank?
A single cabinet failure is usually caused by power supply issues, data cable disconnection, or receiver card failure.
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Check power supply to the cabinet
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Verify data cable from previous cabinet
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Inspect SMPS inside cabinet
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Replace receiver card if required
Why is a small square area on my LED screen blank?
A blank module is typically caused by a loose ribbon cable or faulty LED module.
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Check ribbon cable connection
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Verify module power connector
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Replace ribbon cable if damaged
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Replace LED module if required
Why is my LED screen too dim or too bright?
Brightness issues occur due to incorrect settings, sensor misconfiguration, or unstable power supply.
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Adjust brightness settings in controller
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Check automatic brightness control
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Verify brightness sensor settings
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Ensure stable power supply
Why is my LED screen ON but showing no signal?
This happens when the controller is not receiving input from the media player or source device.
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Check HDMI / DVI cable connection
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Confirm correct input source selection
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Restart media player and controller
Why is content frozen on my LED display?
Content freezing is usually caused by media player or software issues.
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Restart media player or computer
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Check content software status
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Verify internet connection (if cloud-based)
Why is wrong or old content showing on my LED display?
Incorrect content appears when the media player is not updated or still playing stored media.
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Update content from CMS/software
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Restart media player
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Check storage space
Why is content distorted or stretched?
Distorted content occurs due to incorrect resolution or screen configuration.
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Verify screen resolution settings
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Check LED controller configuration
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Restart media player
Why is the LED controller not detecting the display?
Controller detection issues are usually due to network or configuration problems.
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Check LAN cable connection
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Restart controller and system
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Verify IP / network settings
Why is there delay between video and audio?
Audio-video delay is caused by media player or playback configuration issues.
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Check media player settings
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Verify playback software
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Adjust audio delay settings
Why does my LED display turn OFF automatically?
Automatic shutdown can occur due to power instability, scheduling settings, or overheating.
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Check power supply stability
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Verify timer or schedule settings
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Ensure proper ventilation
How to maintain an LED video wall?
Proper maintenance improves performance, brightness, and lifespan of LED displays.
Best Practices:
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Maintain stable electrical power supply
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Avoid frequent ON/OFF cycles
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Keep display area clean and dust-free
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Ensure proper ventilation
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Schedule periodic preventive maintenance
LED Video Wall AMC
An LED video wall runs for years, and regular maintenance keeps it bright, uniform and reliable. Our AMC turns maintenance into a planned, fixed annual cost instead of surprise repair bills.
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What our AMC covers
- Preventive maintenance visits [6 visits/year]
- Cleaning of modules, cabinets and ventilation
- Checks of power supplies, cabling, earthing and controllers
- Brightness and colour recalibration
- Breakdown support with priority response
- Remote support for software and content-player issues
- Spare part [it depends on the AMC type that you choose]
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Who it's for
- Screens running long hours: control rooms, hospitals, retail and DOOH
- Outdoor screens exposed to heat, dust, rain or coastal air
- Screens whose warranty has ended
Warranty Support
LED displays installed by Vivid LED System carry a 2-year warranty. Includes modules, power supplies and receiving cards and excludes processors. To know more, you can contact our support team.
Still Need Help?
Talk to our technical support team for service, AMC or warranty support.
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Remote troubleshooting
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