FAQ

How to analyze and repair LCD screen failure?

Source: KONWHAI TOUCHAuthor: nick Date: 2019-01-09 Click:

  •      With the rapid development of the digital signage industry. The status of digital advertising has become increasingly prominent, especially as the online media LCD advertising machine of the new media, which has become a beautiful landscape for advertising and promotion with its rapid growth. The application industry of advertising machines is extremely wide.
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  •      Since it is inevitable that electronic devices will fail during use, it is justifiable that the screens used by the advertisers who use the most advertising methods are in use.
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  •      So, how should the LCD advertising machine screen be analyzed and repaired? Next, KONWHAI technicians will explain the screen failure analysis and maintenance methods of the advertising machine.
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  • How to analyze and repair LCD screen failure?
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  •   LCD screen error analysis and maintenance methods: 
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  •      1. First check the cable used, such as common VGA, HDMI, etc., check whether the wire of the advertising machine is tightly inserted, check whether there is a broken needle on both sides of the connector of the advertising machine, and use a hard tool for the curved needle. , nail clippers, etc.) Squeeze gently, do not oversize; break the needle and need to replace a new data line.
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  •      2. VGA, HDMI and other advertising machine internal screen control panel screen line (also known as cable) is faulty, this need to contact the corresponding manufacturers to change the cable.
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  •      3. Faults caused by motherboard problems. Reason: Since some manufacturers' advertising machine boards have not undergone strict stress testing, such phenomena often occur. Can the motherboard of the motherboard be overheated? Is the fan working properly? Is the blade damaged? Too much dust and clean up, the capacitors have burned marks and so on.
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  •      4. If the advertising machine suddenly appears black screen, please turn off the power in time to avoid the short circuit problem, whether to smell the burnt after opening the back cover of the advertising machine, and let the professional check the circuit to view the whole motherboard, display card, power supply. Is the board faulty?
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  •      5. for some windows platform users, if the advertising machine has a splash screen, you can check the way according to the regular computer, whether the graphics card is tight, try to adjust the screen refresh rate to upgrade the graphics card driver.
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  •      The above is about the LCD screen failure analysis and maintenance methods, the white screen, flower screen, black screen and other issues of the screen of the advertising machine, mainly depends on whether the advertising machine provider has strict production process, production testing technology, timely problem solving. R & D strength, etc., do not panic when encountering problems, timely investigation, do not affect the consumer's buying sentiment.
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