Small Pitch LED Display Maintenance Guide
7 common faults and maintenance measures for small-pitch LED displays
LED display single module does not light up
First check whether the adapter board is in poor contact; then check whether the power socket is loose; mainly to check whether the signal transmission cable is in normal contact, if the contact is poor, you need to re-plug the cable, or replace the cable. After the problem still exists, check whether the interface of the module is in good contact.
Multiple boxes on the LED wall do not light up
First, consider the power transmission problem. Check from the front of the problem box to see if the power supply of the switching power supply is normal. Check whether the network cable is loose and the signal has not been transmitted. The rest is the problem of damage to the receiving card.
LED video wall horizontal and vertical large area is not bright
First, confirm the problem of the main network cable, and then further investigate the problem of poor contact of the short network cable inside the screen body; usually, the power supply problem inside the screen body will also cause a large area of blackout.
LED display screen color difference
The uneven temperature of the led display leads to display color problems, and it is necessary to do a good job of heat dissipation.
Small pitch LED display screen no signal
First check whether the DVI or HDMI signal cable is well connected; if it is not the signal cable problem, confirm whether the copy mode or expansion mode in the computer display control panel is normal; or set the corresponding signal source correctly in the processor.
One or more cabinets do not light up
Check the power indicator and power supply cable inside the screen to ensure that the power supply of the screen is normal; then check whether the green light of the receiving card indicator is flashing normally and whether there is signal transmission; finally, check whether the network cable connection is normal, and replace it in time if any problem is found.
The whole screen of the LED display is not bright
Check whether the power supply of the distribution box is normal; check whether the power supply of the screen is normal.
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