Have you ever encountered such an embarrassing situation? More than a dozen people in the conference room were waiting for the meeting. The big screen was still on, and a group of people surrounded the console and looked for the switches as if they were playing escape room. Don’t panic! Today we will break it apart and talk about where this big guy's life gate is hidden.

1. Three major hiding places for physical switches

You may not believe it if you say it. Last year, a company spent 2 million to install a 4K splicing screen, and the technician searched for half an hour for the switch - it turned out that the manufacturer hid the main control switch in the aluminum frame decorative strip! ​ ​The position design of the physical switch directly determines the convenience of operation​​There is a lot of knowledge here.

​​Common locations you need to remember:​​

1. ​​Console dark grid​​: Some high-end models will design hidden buttons, just like the engine switches under the steering wheel of the car, usually with a red power sign
2. ​​Power distribution box​​: Where the "heart" of the large splicing screen is located, you can find the main gate switch (usually with a black knob or a ship-type switch)
3. ​​Module side​​: Each display unit may have independent switches on the side, especially this design is commonly used for rental screens.

The fenced screen installed for a gymnasium in Tokyo last year was very interesting, with magnetic switches on the sides of each box. Guess what? When maintaining, you can directly disassemble the single screen without having to power off. This design is really amazing!

2. Three ways to open software control

LED screens today are no longer as simple as physical switches. Last month, I encountered a case: a customer accidentally deleted the control software, and the equipment worth millions became a decoration. so​ ​Software operation must be passed​​！

​​Mainstream control mode inventory:​​

• ​​Manual screen opening​​: Right-click the power plan on the control computer, select "Send command" to wake up (the same principle as the phone is to turn on the screen)
• ​​Automatic screen opening​​: Set up timed tasks, such as automatically starting at 8 o'clock every day, suitable for shopping mall advertising screens
• ​​Remote control​​: Through mobile APP or web page operation, the curved advertising screen made for Singapore last year supports remote control of 5 kilometers away

A key detail reminder: Be sure to check the signal cable connection before opening the software screen. The most outrageous situation I have ever seen - a customer plugged the HDMI cable into an unpowered dock and tried for three days to find out the problem.

3. Special operations in emergency situations

Last year, a customer's exhibition hall caused a short circuit in the console and was so anxious that he jumped straight. Actually, at this time​ ​Master emergency start-up skills​​It can save lives:

​​Guidelines for emergency response:​​

1. ​​Power-off restart method​​: Turn off the air switch of the distribution box directly, wait for power to be turned on for 30 seconds, and most system failures can be solved
2. ​​Single module startup​​: Find the emergency button behind any display unit (usually with lightning sign), press it for 5 seconds to start it separately
3. ​​Backup power supply start​​: High-end models are equipped with UPS interface, and can temporarily supply power when connected to the power bank.

Here is a cold knowledge: boxes with IP65 protection (such as our stadium fence screen) can work normally in heavy rain, but the console is not waterproof, so be sure of this!

4. Five key actions for daily maintenance

Don’t think that everything will be fine if you find the switch. You have seen too many customers suffer from maintenance. Last month, I just helped the customer to rescue the block splicing screen - because the dust was not cleaned, the heat dissipation holes were blocked.

​​Golden Rules for Maintenance:​​

• ​​Must do every week​​: Use a soft brush to clean the heat dissipation grille (remember to power off operation! )
• ​​Monthly check​​: Test the sensitivity of all physical switches to prevent contact oxidation
• ​​Quarterly calibration​​: Finding a professional team to do color consistency debugging is as important as doing four-wheel positioning in the car
• ​​Annual inspection​​: Replace the aging power module, this money will never be saved
• ​​Extreme weather​​: Unplug the signal cable before thunderstorm, and only the power supply is grounded

Let me tell you about the inside story of the industry: the splicing screens regularly maintained can be extended for 3-5 years, and the maintenance cost is less than one-tenth of the replacement cost. This is the same as health preservation. Pay attention to it, and the machine will live for a long time.

5. Understand future trends early

Recently, a new trend has been discovered: smart switches with biometrics have become popular. For example, you can wake up the screen by waving your hand, or you can automatically turn on your face recognition. The third-generation control system that our laboratory is testing can also activate different display modes through voiceprint recognition.

But after all, no matter how advanced the technology is, it must return to its essence. Just as the master often said: "No matter how hidden the switch design is, it is better to standardize the operation process. ； No matter how cool the function is, it is better to be normalized for maintenance." Do you think this is the reason?

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