ouch hey! the led screen that had just been installed suddenly turned black, and i was so anxious that i was sweating all over to look for the switch, right? last week, a guy who opened a convenience store told me that he touched the back cover of the display for half an hour but didn't look for the switch. finally, he found that the power supply was not plugged in at all... this matter is not new! let's talk about this crazy question today -where is the switch for the led display?​？

three common hiding places for switch positions

you may not believe it,90% of newbies will find the wrong place​. don't rush to disassemble the equipment first, and touch them one by one according to the locations i mentioned:

1. ​​the inner side of the metal border in the lower right corner​​: reach out to touch the raised area of the border, with grooved buttons with anti-accident touch design
2. ​​the power adapter comes with switch​: pay attention to the black box, there is a small pick with indicator light
3. ​​exclusive buttons for remote control​: identify the symbol with the moon, press it for 3 seconds to turn off the phone

i encountered this when i was helping the restaurant owner to inspect the restaurant last month. he insisted that the display screen had no switch, but he found the instruction manual in the remote control mezzanine... this matter is done!

why do designers hide the switch?

there are tricks here! tell you an insider of the industry——​hidden switches can reduce the risk of false touch by 30%​. especially for outdoor advertising screens, if anyone can touch the switch, then they will be mischievous every day?

a case i have handled is particularly funny: the interactive floor tiles screen in the mall is always turned off by itself. later, i adjusted the surveillance and found out that the cleaning lady always clamped the switch as a bracket when mopping the floor. now all new devices are changed todual confirmation switch​, you have to press the unlock key first and then press the power supply for a long time.

special situation handling manual

what if you can't find it according to the regular position? don’t panic! remember these three emergency plans:

• ​​view the power indicator status​: the red light is always on = standby, the green light is flashing = signal problem
• ​​disable power and restart method​: directly unplug the power supply for 30 seconds, which is more effective than finding the switch.
• ​​mobile camera detection method​: use your phone to take a picture of the screen. if there is any fine flash, it means that the power is not cut off.

there is a customer who is even more amazing. his display switch is actually hidden in the box clamp! later i found out that it was the installation master who tried to save trouble and changed the switch to the splicing place. so,​customized installation really requires attention​​。

the technical mystery behind the switch

now all high-end led screens are used to play intelligent control. like what we did for chain pharmacies​voice wake-up switch​, you can turn off the lights by shouting "off the screen". there are more advanced ones:

• ​​light-sensitive automatic switch​: it starts automatically during dark, saving power and worry-free
• ​movement detection switch​: people walk automatically sleep, suitable for exhibition hall scenes
• ​​remote app control​: the boss can turn off the screen in the store when he is on vacation in hainan

but these new technologies also have pitfalls! a failure was just handled last week. the automatic switching program set by the customer conflicted with the building lighting system, causing the screen to blacken on time every day during peak passenger flow...

tips for maintaining switches

discovered?​80% of switch failures are caused by man​! remembering these three points can save a lot of maintenance costs:

1. use cotton swabs to clean the gaps in the switch every month to prevent dust from getting stuck
2. don't wait until the battery of the remote control is completely out of power before replacing it
3. apply waterproof coating to outdoor switches before the rainy season

there is a lesson that must be said: the logistics company’s brother used the wd-40 spray switch to remove rust, and the liquid penetrated into the circuit board and caused a short circuit.​​price tools must be used for cleaning precision equipment​​！

editor's point of view: if you can't find the switch, you don't have to rush to get angry. first, follow the rules i mentioned to eliminate. nowadays, many new equipment are in use​insensorless switch designit doesn't require manual operation at all. i want me to say, focus on the equipment when choosing​the degree of humanization of the control system​​, after all, no one wants to play "treasure hunting games" every day, right? by the way, if you encounter a situation that cannot be solved, it is most reliable to contact the manufacturer directly for 24 hours of technical support, so don’t mess around with it yourself!

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