Do the operation guys who have just entered the industry often go crazy? They obviously want to turn off the LED subtitle screen, but they have blacked the entire screen? Don’t worry, today we will break it and talk about where the switch of this subtitle screen is hidden!

1. Hidden mystery of physical switches

​​1. Secret button on the side of the box​
The large outdoor screen often uses a toggle switch with a protective cover, which is hidden in the groove on the right side of the aluminum magnesium zinc box. Key reminder: The switches of the waterproof model will have an extra layer of silicone protective cover, so don’t break them hard! Use your nails to pry them along the edges to operate.

​2. Double safety of power sequencer​
The black iron box (usually installed against the wall) is standard for professional engineering screens. Find the red knob marked "MAIN POWER". Turn clockwise to the bottom and hear the "click" sound, which is really shut down. Don't just unplug the plug - it will burn the driver board!

​3. The golden triangle of emergency power outage​
If you encounter any sudden situations such as smoking on the screen, operate in this order:
① Take a picture of the air switch in the distribution box
② Unplug the white signal cable on the control card
③ Press and hold the red emergency stop button on the side of the box for 5 seconds

2. Three major channels for software control

​Channel 1: Supporting control software​
Open the NS-Control software on your computer (the icon is a blue wavy line) and find the "Power Management" option in the menu bar in the upper left corner. There are three modes hidden here:

• ​​Sleep mode​: Keep the signal received but turn off the lamp beads, suitable for lunch break
• ​Timer switch​: Set the screen to automatically turn on at 8:00 every day and turn off at 22:30
• ​Remote restart​: Click "Reset All" to restart the 32-piece splicing screen at the same time

​Channel 2: Hidden function of mobile APP​​
Scan the QR code on the screen to download the official APP, and pay attention to these two entrances after binding the device:

• Home page slides to the third page "Energy Saving Settings"
• Press and hold the screen to preview the image for 3 seconds
  Tested data: Using APP to shut down the power savings 17% more than physical switches

​Channel 3: Protocol docking of central control system​
Through the HDMI-CEC function, the conference room tablet can be controlled in a linked manner. Operation path:
Device Management → Display Device → Power Protocol → Select "NewScreen_PWS"
This protocol supports 200-piece splicing screen for synchronous switches within 0.5 seconds, suitable for large-scale event sites

3. Switching secrets for special scenarios

​Scene 1: Outdoor screen maintenance on rainy days​
Don't turn off the phone directly! The correct process is:

1. Switch to "Rainy Mode" on the software side (brightness dropped to 1500cd/m²)
2. Open the drain valve on the back of the box
3. After turning off the main power, wait for 10 minutes before placing a rainproof cloth

​Scene 2: Stage floor tiles screen performance​
Do you want to keep the background animation when you turn off subtitles during the performance? Press and hold the "FN+↑↑↓↓" of the console to call up the project menu, select "Partial Power Off" and select the subtitle area.

​Scenario 3: Temporary power outage in transportation​
Be sure to complete before unplugging:
① Turn off all signal source devices
② Execute the "safe shutdown" command in the software
③ Press and hold the power button until the breathing light turns yellow
Otherwise, the correction parameters may be lost, resulting in color distortion after restart

4. Power saving skills that 90% of people don’t know

1. ​​Peak and Valley Electricity Price Artifact​
   Set "Smart Electricity Price Response" in the software, and the screen will automatically increase the brightness by 15% during the electricity bill trough period (22:00-8:00) and reduce it to standard brightness during peak periods

2. ​​Mobile detection black technology​
   After turning on the "AI sensing" function, the subtitle brightness will automatically drop to 30% when no one passes, and the flow of people will be restored immediately when it is detected - the actual store test saves 23% of power

3. ​​Yuehui Utilization Mode​
   After shutting down, use the residual capacitor to maintain the clock module operation, and speed up to 3 seconds after the next startup. Setting path: System Settings → Advanced Options → Check "Afterglow Support"

Editor's opinion

I used the LED screen for five years before I realized that this switch design is really not a matter of installing a button casually. Especially those models with intelligent brightness adjustment, direct power outage will damage the photosensitive module! It is recommended that novices develop the three-step habit of "software shutdown → wait for the breathing light to go out → turn off the physical switch". Data shows that standardized operation can extend the screen life by 2.3 years, which is much more cost-effective than replacing a new screen!

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