Article List

• Prompt "No Send Card Detected" at Start-up

  01. The serial cable or USB cable is not connected to the sending card. 02. Computer COM or USB port is bad 03. Serial cable or USB cable is bad 04. Sending card is bad 05. No USB driver installed

  Q&A July 16, 2019
• System Troubleshooting LED Display System Failure

  The first step: Check that the graphics card settings are set up properly. The second step: Check the basic connection of the system, such as DVI line, correct network line socket, connection between main control card and PC PCI cable, serial line connection, etc.

  Q&A June 03, 2019
• LED Display Electrostatic Protection Principle And Protective Measures

  The main component of the LED display is the LED semiconductor product, and its rated maximum voltage value between the pins, once exceeded, the LED display will be malfunctioning or even damaged. Static electricity is often the main reason, so protecting static electricity is critical to LED displays.

  Q&A May 20, 2019
• LED Display Safe Power Distribution

  After the LED display is installed, it needs to be tested. Power distribution is one of the most important tasks. The safe power distribution operation can not only extend the life of the LED display, but also avoid unnecessary losses and dangers.

  Q&A April 15, 2019
• Explanation of Nouns for LED Display

  1. Data signal: Provide data needed for displaying images. The data must be coordinated with the clock signal in order to be transmitted to any display point. Generally, the red, green and blue data signals are separated in the display screen. If a data signal is short-circuited to the positive or negative poles, the corresponding color will appear bright or not. When the data signal is suspended, the corresponding color display situation is uncertain.

  Q&A March 08, 2019
• 2019 Chinese New Year Vacation Arrangement

  Hangel Technology will be on Chinese New Year vacation from Jan. 28 to Feb. 10. And we will come back to office on Feb. 11.

  Company News January 25, 2019
• National Day Vacation Arrangement

  National Day is coming. And in 2017, The National Day and the Mid-Autumn Festival are at near days. To make sure clients and producing department arrange orders and prouding well, here we public the vacation arrange in advance as following, Sep. 30th, Saturday, keep working as usual; Oct. 1st to 8th

  Company News September 25, 2017
• Chinese New Year Vacation

  Chinese New Year will be on Jan. 28, 2017. As the most important festival inChina, Chinese New Year brings us the longest vacation days, besides the greatest enjoy, family reunion in a whole year. Here our vacation arrangement is as following, Vacation days: from Jan. 21 to Feb. 05; Back to offic

  Company News January 16, 2017
• General Instruction on LED Message Sign Controlling Method

  About LED scrolling message sign, we will think of the various controlling methods, kinds of data transmitting port, etc. Generally, for the data transmitting, there are so many different ways available for the LED message center, such as the “USB port for flash drive, RS232, RS485, LAN port, RF, Infrared, WIFI, GPRS, GSM, 3G, 4G, etc.” Let’s discuss them one by one here.

  Solutions September 10, 2016
• Taxi Roof Top LED Moving Message Display Sign Light

  LED Taxi Roof Top Moving Message Light Display Sign can easily broadcast much more advertising information. With the GPRS internet connection, the advertisement administrating & broadcasting becomes easy and high-effective. It takes taxi companies large revenue, but less cost increasing. Or rather, we can say, this kind of LED Taxi Roof Top Light Display Sign opens a 2nd income channel for taxi company. It will increase taxi companies income largely.

  Solutions November 26, 2016