Views: 0 Author: Site Editor Publish Time: 2022-03-24 Origin: Site
LED TV Panel uses the visual inertia of the human eye to achieve a gradual effect. One lamp tube can change into seven different colors in stages through the internal control chip, and produce various effects such as gradation, flickering, scanning, chasing, and running water. It has been widely used in many publicity activities.
What is the first step of failure analysis process of LED TV Panel?
What is the second step of failure analysis process of LED TV Panel?
What is the final step of failure analysis process of LED TV Panel?
First of all: We judge whether the control card of the LED TV Panel is good. You first turn on the power and whether the control card indicator light is on. If it is not, check whether there is 5V power supply and whether the LED TV Panel can display the content. , As long as the content can be displayed, the display content function of the control card is good; then you use the control card software to find the control card. If you can find it, it means the function of the control card’s sending content is good. If you can't find it, you can see Is the communication line connected? If it is connected, there may be a problem with the card. As long as these two functions are good, the control card is good, otherwise the control card must be replaced.
Secondly, we have to judge whether the power supply of the LED TV Panel is good. If the power supply is broken, it will directly cause several boards to be off or abnormal at the same time, because one power supply controls several boards at the same time, that is, you If the LED TV Panel in the same small area does not display or display abnormally, you should consider whether the power supply is broken. The most direct detection method is to use the multimeter to measure the output voltage at 4.9~ Between 5.5V. If so, replace the power supply.
Finally: we have to judge whether the unit board of the LED TV Panel is good. The LED TV Panel is the input signal transmitted from the output pin of one unit board to another board, so a problem with one board will cause the whole row behind it. It is not bright or abnormal, so when there is a problem with a row of the display, we should replace the abnormal board in this row, or use a long cable to jump over this board, and then see if the back panel displays normal.
The LED TV Panel has achieved an irreplaceable position in stage design. PROWALLS is committed to providing various LED TV Panels of high quality for all customers from all over the world.