The vertical screen of the newly unboxed LED magic treasure cannot be adjusted in the right direction? Don't panic, I've seen this problem many times. There was a shopping mall event last year, and the staff installed the vertical screen worth 200,000 yuan upside down. After half an hour of broadcasting, it was discovered that the subtitles were all upside down... Today we will talk about this troublesome setting problem, and I hope you can solve it yourself after watching it.

Hardware positioning three-part axe

Don't rush to accuse the product of having problems. Most likely, you didn't find the right place. Remember these three key parts:

1. ​​Snap groove on the side of the box​ ​: A metal groove with a spring lock, where the rotating axis is hidden. Try to use the matching hexagonal wrench to unscrew the protective cover. There is a red direction mark inside.
2. ​​DIP switch on the back of the control box​ ​: It looks like an old-fashioned radio FM button, usually marked "Rotation 0/90/180". Remember to turn off the power before operating it.
3. ​​Triangular mark of magnetic interface​ ​: Align the ▲ symbol at the bottom when splicing the modules. A deviation of 1 mm will cause the screen to shift.

A lesson learned through blood and tears: Never break the screen when the power is on! I have personally seen someone break the bearing gear and the repair cost was more than 8,000.

Four steps for software debugging

The hardware is aligned but the display is still incomplete? That depends on the parameter settings:

1. ​​Resolution matching​ ​:Select "custom resolution" in the control software,​ ​It is recommended to set the vertical screen ratio to 9:16 or 3:4​ ​, never use the default 16:9
2. ​​Refresh rate sync​ ​: Adjust to ≥1920Hz to eliminate smear. For stage use, remember to turn on the "frame-by-frame synchronization" function.
3. ​​Brightness compensation​ ​: The upper and lower parts of the vertical screen receive different light. Turn on "Brightness Gradient Adjustment" and reduce the brightness at the top by 5-10%.
4. ​​Thermal strategy​ ​: If the machine works continuously for more than 8 hours, a temperature control curve must be set. It is recommended to automatically reduce the frequency by 20% at 50°C.

Last week, I helped a friend set up a vertical screen for the dance floor in a bar, but I missed the heat dissipation settings. As a result, the screen overheated until 2 a.m. and the DJ was almost booed off the stage by the guests.

First aid kit for difficult and complicated diseases

Don’t panic if you encounter weird problems, try these wild ways:

• ​​Screen tearing​ ​: 80% of the time the transmission cable is not plugged in tightly. Remember to hold down the buckle when re-plugging it.
• ​​color break​ ​: In gamma correction, adjust the middle value to between 1.8-2.2. Don’t trust automatic correction.
• ​​Splicing misalignment​ ​: Calibration starts from the second module from bottom to top, and the error can be reduced by 70%

Here’s a secret weapon for you: carry a laser level with you. Using this trick when setting up the auto show last year, the 6-meter-high vertical screen was straightened in half an hour, which was ten times more accurate than judging by the naked eye.

Parameter setting red and black list

You should remember these numbers:

Let’s focus on voltage: don’t think that everything will be fine just by connecting a voltage regulator.​ ​The actual working voltage should be measured at the connector with a multimeter.​ ​. There was an exhibition where the power supply was unstable and the screen clearly showed 5V, but it was actually only 4.3V, causing the lower half of the screen to go completely black.

The editor feels that adjusting the vertical screen is like falling in love - you can't be anxious or annoyed. Before debugging next time, put the manual under the monitor as a talisman. I heard that the new smart vertical screen can automatically recognize the angle with an error of no more than 0.5 degrees. If this technology becomes popular, how much hair will be lost in our industry... By the way, remember to take a panoramic photo after debugging and archive it. Who knows that one day Party A will suddenly want to restore the on-site effect?

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