As a high-end display product in the large-screen display market, the 55-inch LCD splicing screen is the most important way to monetize the large-screen display. As we all know, as long as the electronic equipment will definitely fail, today I will talk to you about the two common faults and processing methods of the 55-inch LCD splicing screen.
1, 55 inch LCD splicing screen black screen reasons
In general, the reason for the black screen of the 55-inch LCD splicing screen is basically: there is a problem with the power supply, a problem with the adapter, a failure of the board, and the worst is that the screen is broken. The first thing that occurs in this kind of problem is to check the power supply: the performance of the power supply is that there is no response to pressing the panel button, the indicator light is not lit, and the voltage is measured with the multimeter multimeter first, if there is no voltage or the voltage becomes very low, then one possibility is that the input stage of the power supply circuit presents a problem, that is to say, there is a problem with the point source. This kind of problem is very common, ordinary is to burn the insurance or the voltage regulator chip presents a problem, some of the machine is the switching power supply built-in, so we stop the 55-inch LCD splicing screen playback, to ensure that the voltage is stable! Another situation is that the program is flushed out and may cause the computer to not be turned on, just like our computer cannot be turned on, sometimes because of the software, which requires us to purchase software.
2. The 55-inch LCD splicing screen appears to be screen flashing
The 55-inch LCD splicing screen is generally due to damage to the power adapter, unstable power plug, unstable voltage, unstable VGA cable interface, or the reason why the line is damaged. Therefore, we can solve the causes of these splash screens step by step:
1), the power adapter is damaged, the power plug is unstable, the voltage is unstable, the VGA cable interface is not firm, or the line is damaged.
2), the solution: reconnect the VGA line, carefully refer to the product wiring manual, according to the above instructions to seriously connect, the interface should be plugged tightly to avoid short circuit or poor contact and other phenomena.
3), the use of multimeter to detect the internal connection line of the 55-inch LCD splicing screen, find out the line with poor contact or short circuit, and replace the high-quality circuit connection line. Use a multimeter to detect whether the power supply of the 55-inch LCD splicing screen is grounded, the screen flicker may be caused by this reason, if there is a problem, the power supply can be grounded.
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