Do you think that a novice friend who has just taken over the LED large screen always feels that you can just press the boot button?​​You may not have expected that a small boot position selection can shorten the screen life by half!​Recently, I encountered a customer who installed a display screen worth hundreds of thousands of yuan under the air conditioner outlet, and color blocks appeared in half a year - this is not an exaggeration. Today, let’s talk about this fatal problem in plain language.

1. The boot position is wrong, and millions of equipment will be turned into scrap iron

Last week I encountered a real case: a shopping mall installed a P2.5 full-color screen next to the elevator shaft. The electromagnetic interference generated by each elevator operation made the screen flash wildly. When the maintenance master took it apart, he saw that the motherboard capacitors were bulging. What does this mean?​​The power-on position is not as simple as pressing the power button​​, it is related to the service life of the entire equipment.

Three common fatal mistakes include:

• ​Heat source trap​: Installed near the radiator or large equipment heat sink, the main board components are like working in a sauna
• ​​Shock Killer​: The position close to heavy machinery or passages is shaken thousands of times a day, and the solder joints will fall off sooner or later
• ​​Moisture Grave​: Installation near the basement or bathroom, the circuit board will grow moldy spots in minutes

There is data showing,42% of LED screen failures come from improper installation locations​, especially components aging caused by improper temperature and humidity control. This is like letting a sports car race in the desert, even the best engine can't withstand it.

2. Secrets for selecting gold booths

​​Remember this mantra: three look, three touch, three measurements​. When we installed fence screens for a gymnasium in Tokyo last year, our team switched the venue for three days before we decided on the final spot:

1. ​​View the direction of the airflow​
   Take a tissue and shake it in the alternative position. If the tissue is floating around, it means that there is strong convection. Installing a screen in this position is like letting people stand at the tide of a typhoon to eat - the internal cooling air duct of the screen will be disrupted. The best choice is the wall where air flows naturally, which is the safest 1.5-2 meters above the ground.

2. ​Touch the wall temperature​
   At 2 pm, you can use the back of your hand to stick to the wall. If you feel hot (more than 35℃), this kind of direct sunshine wall cannot be installed at all. There is a trick: use a thermometer to measure six points, and if the temperature difference exceeds 5℃, you must give up.

3. ​Test electromagnetic interference​
   When the phone is turned on, move in an alternate position. If the signal grid fluctuates violently, it means that there is a strong electromagnetic source nearby. At this time, either change the position or add a shielding layer - spending these 20,000 yuan more is much more cost-effective than replacing the entire screen.

Here is a story about the industry:​A truly professional installation team will provide spectrum instrument on-site inspection​​, scan the 500MHz-3GHz frequency band. Of course, if we do it ourselves, we can do it by downloading an EMF detection app on our mobile phone.

3. Start the operation of life and death line

After confirming the location,​Make the turn-on and shutdown order wrong and burn the screen in minutes​. Last year, a live broadcast base on Double Eleven last year was directly scrapped due to this mistake. Remember this set of life-saving operations:

When you suddenly see the entire line of highlighting suddenly, don't hesitate -​Disable power immediately! Power off immediately! Power off immediately!​​ Say important things three times. Last year, the screen of a theater in Shenzhen was smoking, but the staff on duty hesitated for 3 minutes before turning off the power, but the repair fee was more than 80,000 yuan.

4. Soul interrogation session

​​Q: I installed the LED screen behind the glass curtain wall. Is it a good location?​​
A: This is the option of death! Glass will produce specular reflections that disrupt the heat dissipation airflow. In summer, the internal temperature can be 20℃ higher than the environment. If you have to install this way, remember to install a centrifugal fan on the back of the screen, and leave a 15cm ventilation duct at a distance.

​​Q: What happens if the screen is completely white when it is turned on?​​
A: It’s like starting a cold car and then rushing to 5,000 rpm. The current impact of the full white picture is 3 times that of the normal state. After the lamp beads are used twice, the color will start to deviate. The correct way is to display a dark gray background first, wait 10 seconds before switching content.

​​Q: Why do technicians always emphasize grounding?​​
A: Say something scary:​60% of screens are caused by static electricity​. Last year, the curved screen installed in a shopping mall in Seoul was broken by three receiving cards because it did not use equipotential grounding. Remember to use a multimeter to measure the ground resistance, ≤4Ω is considered qualified.

​Editor's opinion​
Building a large LED screen is like raising precious orchids. If you choose a good location, you will bloom every day, but if you don’t choose it well, you will wilt the next day. Next time I see the installation master holding the level and making a difference everywhere - they are buying insurance for your equipment! If you can't get where to install your own screen after reading it, remember this phone number: 400-820-9320. The professional team brings testing equipment to the door, which is much more reliable than you do.

for more product information and pricing, please contact us .