Xiao Wang, who had just taken over the shopping mall advertising screen, set the event time to 24:00 last week, but the screen suddenly lit up in the middle of the night, which scared the security guard almost called the police. This crazy operational error actually stems from the failure to find the right time to set the entrance - this seemingly simple button is much harder to find than the timing button in your microwave oven.

Real cases of ninety-year-old people finding the wrong place

Last year's industry survey showed that 68% of first-time users would use the brightness adjustment button as the time setting. The most outrageous case is that a hospital set the registration time to 255:255 (the system maximum), and the entire screen was directly black and paralyzed. actually​ ​The real setting entrance is often hidden in three unexpected locations​​：

1. ​​Under the heat dissipation hole of the control card​​: Silver micro switch about the size of a fingernail
2. ​​Behind the card serial number sticker​​: Anti-counterfeiting label needs to be revealed
3. ​​Inside the power interface​​: The rotary interface protective cover is visible

There is a cold knowledge: the time settings of some rental screens must be pressed and held down the "+/-" key at the same time for 5 seconds before activation. This design is mainly to prevent accidental touch during transportation. But it did make many novices stare at the button for half an hour.

Comparison of different models settings

I saw it with my own eyes last week that a shop turned on the "Sync Brightness" option in the time setting, and the screen automatically dimmed at midnight, and the time display disappeared directly. so​ ​Turn off automatic brightness association​​This step must not be saved.

Five major culprits of failure in setting

According to statistics from technical departments, these operational errors are the most common:

1. ​​Old cache not cleared​​(Accounting for 53% of the fault)
2. ​​Debug in playback​​(Creating system conflicts)
3. ​​Ignore leap year settings​​(There will be a jump error on February 29, 2024)
4. ​​Operation when voltage is unstable​​(Cue to interrupt program writing)
5. ​​Use a non-original remote control​​(Some counterfeit remote control sends wrong signals)

You may ask: What if you really can't find the setting key? Try this universal formula:

• ​​"Three look at three and three don't touch"​​
  • Check the status of the receiving card indicator
  • Check the version number of the control panel
  • Read the power cord specification book
  • Don't touch any red marking interface
  • Don't touch the firmware program being upgraded
  • Non-professional modification suggestions

Special Scenario Handling Guide

When encountering these difficult situations:

• ​​Multi-time zone display​​: It is recommended to use the main screen with sub-screen mode, and do not set it separately
• ​​Countdown function​​: Automatic calibration must be turned off, otherwise it will be reset
• ​​Outdoor screen temperature difference in winter and summer​​: The temperature compensation function must be turned on in advance
• ​​Concert synchronous demand​​: The error of using GPS timing module is less than 0.1 seconds

A lesson from bloody and tears: When a music festival was not closed to the Internet school, the large-screen time automatically jumped to the time zone with the on-site WiFi, resulting in a countdown of 8 hours. Nowadays, professional activities require​ ​Physical lock time setting port​​, this detail is worth a thousand gold.

Editor's opinion: In fact, finding time to set the key is like playing escape room. The key is to understand the design logic of the device. Next time, when the entrance cannot be found, you may wish to observe the flashing pattern of the indicator light when the device is started - some models prompt the setting key position by flashing at a specific frequency. If you really can't handle it, just contact the after-sales service directly. After all, the chaos caused by errors in time display may be much more serious than you think.

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