1、No Displaying on the Entire LED Display(all black)

Check the power supply,turn on the swift of power distributor,the power indicatior should be on.Start up the PC, open the LED studio sofeware.Check the main signal cable,reconnect it until the green indicatior twinkling as normal. Check if the sending card is working normal(green indicator twinkling,red indicator keep lighting). If the green indicator is off or keeps lighting. It means there is no signal, please reconnect the VGA-DVI cable.If the red indicator is off,please reconnect the sending card with the PCI socket on PC. Sending card will very seldom break down. Check the first receiving card.check if the green indicator is twinkling, red indicator is lighting. Please reconnect the signal cable and 5v power cable.Receiving card will very seldom break down Set the graphics card to work on "clone display"mode

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2、Garbled Displaying on the LED Display

Check if the sending card and receiving card is working normal(green indicator twinkling,red indicator keep on lighting).If the green indicator is off or keeps lighting. it means there is no signal, if the red indicator is off, it means 5v power is off.Please reconnect the signal cable and 5v power cable. Receiving card and sending card will very seldom break down.Setting up the LED studio software.Reconnect the signal cable according to the Controlling System Operation Steps(see the Controlling System Operation Manual)

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3、Disordered or Overlapped Displaying on the Entire LED Display

Configurate the connection program according to the signal cable route on the screen.Or connect the signal cable according to the connection program.

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4、Twinkling/ Shaking Displaying on the Entire LED Display

Check the connection between whole screen and the ground wire.Check if the sending card and receiving card is working normal(green indicator twinkling,red indicator keep lighting).If the green indicator is off or keeps lighting,it means there is no signal lf the red indicator is off,it means its 5v power off.please reconnect the cable or change the contorl card.Receiving card and sending card will very seldom break down.Check the 5v power supply output, reconnect the power cable or change the power supply.Check the signal cable, reconnect the signal cable or change it.Reset the LED studio software setting. Reset the graphics card.

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5、No Displaying on some cabinets

Check the receiving cards on the first No dispplaying cabinet.and the last displaying cabinet.if there are working normal(greenindicator twinkling,red indicator keep lighting) If the green indicator is off or keeps lighting, it means there is no signal.If the red indicator is off,it means 5v power off.Receving card will very seldom break down. If it truly breaks off, please change the receiving card.Check the signal cable on the first no display- ing cabinet.please reconnect or change it.Check the Power supply on the first no displaying cabinet by 'Multimeter(the input should be 110/220v,and the output should be 5v or 4.2v).If the input is not 110/220v,please reconnect the 110/220v input power cable.Power supply will very seldom break down. If there is no 5v power output, please change the power supply.

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6、Not Displaying Synchronously with the computer

Set the graphics card to work on"clone display"mode

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7、Garbled Displaying or No Display on the LED Display Modules which are next to each other

Reconnect the receiving card with Hub Card. Receiving card and Hub card will very seldom break down.Reconnect the flat cable on the first modules from the right side.Check the 5v input on the first module by multimeter.reconncet the 5v power cable.Change the module

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8、Garble displaying or No displaying on a part of module

Change the module

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