Display common problem 1: LED display does not display
Process 1 checks whether the 220V power supply is normal and whether there is a short circuit.
2 Check if the internal circuit is loose.
3 Check if the master is damaged.
4 cell board is damaged.
Display Frequently Asked Question two: LED display does not light Huaping <br> <br> process flow â‘ check the video cable is plugged in.
2 The cell board has not been in contact with other conductive objects.
3 Does not show whether the power supply for detecting the 5V power supply is normal, and then detects the problem of the cable.
4 Last replacement control card test
Display Frequently Asked Question three: LED screen sometimes and sometimes do not communicate communication <br> <br> process flow â‘ First, check the detection circuit to ensure that no problem can be connected to a single line display a test, or a turn-off signal line screen test .
2 Check if the signal line is too tightly separated from the 220V power supply.
3220V power supply is enough.
Display Frequently Asked Question four: LED display called the numbers do not show called number information <br> <br> process flow â‘ first test with adjust screen to see if the software can be normal debugging communication, if able to communicate properly screen type checking software And display COM settings are correct.
2 Occasionally there is no display or slow response. Most of them are caused by signal instability. There are many reasons why the signal is unstable. One of the common reasons is that the signal line is not firmly connected or the signal line is in contact with metal objects. Display 5V power supply instability.
Display Frequently Asked Question 5: Can not call information <br> <br> process flow â‘ Close all open software font of the screen editing software debugging a single screen, if you can debug on, open the Settings screen pager to see inside the settings are correct.
2 If debugging alone is not possible, check if the cable at the adapter is plugged in properly.
Process 1 checks whether the 220V power supply is normal and whether there is a short circuit.
2 Check if the internal circuit is loose.
3 Check if the master is damaged.
4 cell board is damaged.
Display Frequently Asked Question two: LED display does not light Huaping <br> <br> process flow â‘ check the video cable is plugged in.
2 The cell board has not been in contact with other conductive objects.
3 Does not show whether the power supply for detecting the 5V power supply is normal, and then detects the problem of the cable.
4 Last replacement control card test
Display Frequently Asked Question three: LED screen sometimes and sometimes do not communicate communication <br> <br> process flow â‘ First, check the detection circuit to ensure that no problem can be connected to a single line display a test, or a turn-off signal line screen test .
2 Check if the signal line is too tightly separated from the 220V power supply.
3220V power supply is enough.
Display Frequently Asked Question four: LED display called the numbers do not show called number information <br> <br> process flow â‘ first test with adjust screen to see if the software can be normal debugging communication, if able to communicate properly screen type checking software And display COM settings are correct.
2 Occasionally there is no display or slow response. Most of them are caused by signal instability. There are many reasons why the signal is unstable. One of the common reasons is that the signal line is not firmly connected or the signal line is in contact with metal objects. Display 5V power supply instability.
Display Frequently Asked Question 5: Can not call information <br> <br> process flow â‘ Close all open software font of the screen editing software debugging a single screen, if you can debug on, open the Settings screen pager to see inside the settings are correct.
2 If debugging alone is not possible, check if the cable at the adapter is plugged in properly.
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