"The LED large screen I bought for 30,000 yuan will not light up if it is plugged in if it is powered on! "Last month, Lao Wang from Hangzhou Digital City was so anxious that he stomped his feet, and finally found that he could not find the hidden switch. This is not an isolated case. Industry data shows that 41% of first-time users have encountered similar embarrassment in 2023. Don’t panic, let’s understand the mystery of this switch today.

► Three hiding places for physical switches

Let me tell you something unusual——​ ​Now 30% of LED screens do not have physical switches at all​ ​! But there are only a few common locations for traditional models:
• ​​Border side wings​ ​: Most commonly seen in rental screens. If you touch your fingers along the right side of the screen, there is a sunken button groove.
• ​​Control box back​ ​: Like a router, the switch with an independent control box is on the back of the box
• ​​Splicing gap​ ​: Modularly designed model, the switch is hidden in the snap buckle at the connection of the two boxes

Last week I saw a strange case - the switch of a certain exhibition hall was actually behind the LOGO logo and had to be opened with my nails. So,​ ​Don't be anxious if you can't find it. It's better to flip through the instructions than to touch them blindly.​​。

► Virtual switch operation secrets

Now all high-end screens are playing "keyless startup". I'm confused when I hear advanced use, right? Remember these three steps:

1. ​​Remote Control Wake Up​ ​: Press and hold the "Power" key for 5 seconds, and wait until the indicator light turns from red to blue
2. ​​Mobile APP control​ ​: Scan the screen QR code to download the control software, and be careful to be combined with a WiFi
3. ​​Intelligent sensing startup​ ​: Models with human body sensing can be turned on twice and clapped three times (this operation depends on the specific model)

The key point is here! ​ ​If all the methods have been tried, it will not be bright​ ​, 80% of them are cheating people in standby mode. Hurry up and hold the "Menu" + "Confirm" key at the same time for 10 seconds, which is equivalent to a forced restart.

► Ranking of common deadly operations

I have sorted out the repair records of the technical guy, and don’t step on these pitfalls:

1. ​​Turn on the computer with a USB cable plugged in​ ​——The probability of burning the motherboard increases by 60%
2. ​​Press the metal switch with wet hands​ ​——Easy to trigger short circuit protection
3. ​​Frequently switch on and off the machine​ ​——The lifespan of the lamp bead is cut in half
4. ​​Power off constantly​ ​——Not only does it consume 38 kWh of electricity per month, it is also easy to cause lightning strikes

There is a trick:​ ​Observe the heat dissipation port after turning on​ ​. There is a slight hot air during normal operation. If it is chilly, check if the power cord is connected in the wrong way.

► Survival Guide for Special Scenes

What should I do when I encounter these situations? Teach you how to deal with it:
• ​​Outdoor screen can't be turned on on rainy days​ ​: It’s not that the switch is broken! IP65 protection models will automatically lock the machine when they are raining. Wait for 20 minutes after the rain stops before trying.
• ​​The splicing screen part is not illuminated​ ​: Turn off the power supply in the problem area first and wait for 5 minutes to restart. If it is not bright, it is probably the signal line will be loose.
• ​​Snowflakes on the computer​ ​: Don’t rush to report the repair! Try lowering the refresh rate to 1440Hz, not all computers can carry 1920Hz

Last month, an embarrassing incident occurred at the Shanghai exhibition - a brand was complained 17 times because it did not explain these to customers. So,​ ​Knowing how to use switches is the real thing​​。

► Ask questions and answer questions

Q: What should I do if the switch is found and cannot be pressed?
A: There are two situations: If it is a physical button, it may be locked when it is accidentally touched, and use a paper clip to poke the reset hole. ； If you use the touch button and wipe it with an alcohol cotton pad, it will affect the sensitivity if your hands sweat too much.

Q: Why does my screen still have a glimmer of light after it is turned off?
A: Normal phenomenon! This is called the release of the free power, just like the indicator light on after charging the phone. If it is still on for more than half an hour, you have to check the power module.

​​The editor says something real​​
I have seen too many people use LED screens as TVs, and switch them on and off as they please. Actually, this thing is pretty delicate.​ ​Don't switch more than 3 times a day​ ​, Don’t turn off the power when not in use - keeping it standby is better for the circuit board. Next time you can't find the switch, don't swing the hammer, touch the border first and then check the line, so as to save hundreds of yuan in maintenance costs.

for more product information and pricing, please contact us .