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The LED screen shows the importance of the control card!
by：Demo
2021-07-07
The control card is the core component of the LED display. It is mainly responsible for receiving the picture display information from the computer serial port, putting it into the frame memory, and generating the serial display data and scanning control timing required by the LED display according to the partition drive mode. We can see the importance of the LED display control card from the word 'core component'.
The common problems in the use of the LED display control card are generally divided into: display problems, communication problems, functional requirements problems, and a trilogy of solutions: press the test button (test the connection of the power supply and the cable), and the serial communication software Switch the machine (test port and communication line) inside, disconnect the power supply and wait for all the lamp beads to go out before powering on (initialization).
Show solution to problem
1. When the control card is normal, why does the display have no display or the brightness is abnormal?
Answer: After the control card is connected to the display driver, the default is 16 scans. If there is no display, please check whether the data polarity and OE polarity settings in the control software are correct; if the brightness is abnormal, one line is particularly bright, indicating OE The setting is reversed, please set OE correctly.
2. Why can't the display screen display normally after the information is loaded?
Answer: Check whether the scan output selection in 'LED display control card settings' is correct.
3. After the sending is successful, the display screen shows garbled, garbled characters, and moves regularly (with no words visible)?
Answer: The typical scanning method is wrong. For semi-outdoor and outdoor 4 scans, indoor 16 scans, car screen 8 scans, the setting screen parameters are changed and saved and sent successfully.
4. After the sending is successful, a horizontal bright line will appear on the display screen, the one that lights up one line every few lines?
Answer: The direction of the cable is reversed. Press the test button (built in the control card). In this case, the switch is generally immobile. Just connect the end connected to the led display and the control card in reverse. .
The use and installation of About Us is compared with most other systems for managing the led light engine module effectively and no doubt About Us have won the race so many times.
Demo Photoelectric Technology (Wuxi) Co., Ltd. aligns itself with customers as partners to assist them in achieving their goals and objectives.
The only cardinal rule with adding animation is to keep high-quality on About Us.
Producing with varied technical skills, About Us can be used in a wide range of applications as led pcb board.
Demo Photoelectric Technology (Wuxi) Co., Ltd. integrates research streams on team diversity and knowledge boundaries, and present a framework that considers the kinds of specific knowledge boundaries that must be spanned to achieve high-level, cross-boundary teaming.
The common problems in the use of the LED display control card are generally divided into: display problems, communication problems, functional requirements problems, and a trilogy of solutions: press the test button (test the connection of the power supply and the cable), and the serial communication software Switch the machine (test port and communication line) inside, disconnect the power supply and wait for all the lamp beads to go out before powering on (initialization).
Show solution to problem
1. When the control card is normal, why does the display have no display or the brightness is abnormal?
Answer: After the control card is connected to the display driver, the default is 16 scans. If there is no display, please check whether the data polarity and OE polarity settings in the control software are correct; if the brightness is abnormal, one line is particularly bright, indicating OE The setting is reversed, please set OE correctly.
2. Why can't the display screen display normally after the information is loaded?
Answer: Check whether the scan output selection in 'LED display control card settings' is correct.
3. After the sending is successful, the display screen shows garbled, garbled characters, and moves regularly (with no words visible)?
Answer: The typical scanning method is wrong. For semi-outdoor and outdoor 4 scans, indoor 16 scans, car screen 8 scans, the setting screen parameters are changed and saved and sent successfully.
4. After the sending is successful, a horizontal bright line will appear on the display screen, the one that lights up one line every few lines?
Answer: The direction of the cable is reversed. Press the test button (built in the control card). In this case, the switch is generally immobile. Just connect the end connected to the led display and the control card in reverse. .
The use and installation of About Us is compared with most other systems for managing the led light engine module effectively and no doubt About Us have won the race so many times.
Demo Photoelectric Technology (Wuxi) Co., Ltd. aligns itself with customers as partners to assist them in achieving their goals and objectives.
The only cardinal rule with adding animation is to keep high-quality on About Us.
Producing with varied technical skills, About Us can be used in a wide range of applications as led pcb board.
Demo Photoelectric Technology (Wuxi) Co., Ltd. integrates research streams on team diversity and knowledge boundaries, and present a framework that considers the kinds of specific knowledge boundaries that must be spanned to achieve high-level, cross-boundary teaming.
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