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09 October 2018

Ragular Problem Happened on LED Video Wall Installment

 

LED full-color display screen is often used for outdoor display, which is usually assembled from several boxes. The box assembly will also involve the product's technology, parameter correction, normal operation of the system.

01. What are the possible reasons for the failure of loading?

The loading is not possible due to the following reasons, please check with your operation according to the items listed:

A. Ensure that the control system hardware is properly energized.(+5V)

B. Check and confirm that the serial lines used to connect the controller are through lines, not cross lines.

C. Check and confirm that the connection line of the serial port is intact and the two ends are not loose or detached.

D. Check the led display control software and the control card of your choice to select the correct product model, the correct transmission mode, the correct serial number, the correct baud rate and set the address and baud rate on the control system hardware correctly according to the dial code switch diagram provided in the software.

E. check whether the jumper cap is loose or off; If the jumper is not loose, make sure the jumper is in the right direction.

F. If there is no loading after the above inspection and correction, please use the multimeter to measure whether the serial port of the computer or the control system hardware connected is damaged, so as to confirm whether the control system hardware should be returned to the computer manufacturer or tested.

What might be the cause of the failure of communication?

The reasons for failure of communication and failure of loading are roughly the same, which may be caused by the following reasons. Please check with your operation according to the items listed:

A. Ensure that the control system hardware is properly energized.(+5V)

B. Check and confirm that the serial lines used to connect the controller are through lines, not cross lines.

C. Check and confirm that the connection line of the serial port is intact and the two ends are not loose or detached.

D. Check the led display control software and the control card of your choice to select the correct product model, the correct transmission mode, the correct serial number, the correct baud rate and set the address and baud rate on the control system hardware correctly according to the dial code switch diagram provided in the software.

E. check whether the jumper cap is loose or off; If the jumper is not loose, make sure the jumper is in the right direction.

F. If there is no loading after the above inspection and correction, please use the multimeter to measure whether the serial port of the computer or the control system hardware connected is damaged, so as to confirm whether the control system hardware should be returned to the computer manufacturer or tested.

03. Why does the system prompt "please connect led display controller"?

Many customers friend from the company website "download center" direct download to get the "led display control system", after the installation is run after 20 minutes will be appeared with the words "please connect the led display controller", this is because the system was not detected in the test of time seems notions of width control system hardware. At this point, please will you bought led display control system hardware connected to the computer, at the end of the other end connected to the HUB distribution board, the HUB distribution plate of each row line socket and led display unit connected to the interface of the part.

After the connection is completed, you can enter the "setting screen parameters" in the "setting" to set relevant parameters, and then close and reopen the software. At this time, the word "successful connection" will appear on the top of the software.

04. Why does the led display control system hardware appear several seconds' bright line or "screen" when it is powered on?

Will display controller connected to the distribution of computers and the HUB board and the display screen is in order, the need to provide the controller + 5 v power supply to make it work properly (at this point, do not directly connected to 220 v voltage). The electric instant, the screen will appear a few seconds of bright lines or "flower screen", the bright line or "flower screen" is the phenomenon of normal test, to alert users to display screen is about to start work.

Within 2 seconds, this phenomenon is automatically eliminated and the display screen enters normal working state.

What do you mean by automatic or manual brightness control?

Brightness adjustment refers to the adjustment between the darkest and brightest display on the display screen.

Automatic brightness adjustment is to adjust to a predetermined brightness automatically by the broad led display control system according to the different brightness at different time periods.

Manual brightness adjustment refers to that the led display reaches a specified brightness through the operation of the broad led display control system by the end user.

06. Why doesn't the display show when all the controller is normal?

When the controller is set and the cable is properly connected, sometimes there will be no display on the led display screen, which is generally caused by one of the following reasons. Please check the following reasons:

A.l Ed display is normally energized.

Whether the connection between the B.HUB distribution board and the display screen is inversely connected.

C. whether the program edited and sent is empty.

07. The unit board will not be bright or dark.

A. Visually test whether the 26P line between the power supply connection line and the unit board and the power module indicator light are normal.

B. Use the multimeter to measure whether the unit board has normal voltage, and then measure whether the voltage output of the power supply module is normal. If not, the power supply module is bad.

C. Low voltage of the power supply module and fine tuning (fine tuning near the indicator light) make the voltage up to standard.

In control system used in the process, we occasionally meet the led display, the phenomenon of the black screen. The same kind of phenomenon may be caused by different reasons, even display blackening process will vary with different operating or because of the different environment. Such as it may be a moment of electricity is black, may also be black in the loading process, also may be black, and so on. After sent met please note that this phenomenon may refer to the following aspects to judge "failure" :

A. Please make sure that all the hardware including the control system is properly energized.

B. check and double-check the serial port of the used to connect to the controller for loose or falls off phenomenon. (if the black in the loading process, probably because the reason is caused, namely in the process of communication was interrupted because of loose communication line, so the screen black. Don't think that display body did not move, the line can not be loose, please to check, it is important for you want to quickly solve the problem.)

C. Check and confirm whether the HUB distribution board connected with led display screen and main control card printing board is tightly connected and inserted in reverse.

Whether it is assembly or maintenance, led display requires excellent technology, and the safety performance of electronic products is also one of the issues that many businesses pay attention to. Assembly technology affects the use and beauty of the display screen, and maintenance technology directly relates to the display life and use effect.