Oh, the LED screen at the entrance of the mall is making a joke again! Last week, I passed by the commercial street and saw a brand promotion advertisement that marked the "50% off the entire venue" into "50% off" and the onlookers below laughed. This low-level error is mostly because of not understanding the subtitle settings. Today we will talk about this crazy setting problem, so you can be half a technician after reading it.

Where is the hardware switch hidden

The most common mistake for beginners - they think that subtitles are all based on software. Actually, you have to find these three hardware mechanisms first:

1. ​​The physical knob on the side of the control box​​: Silver turntable with dustproof cover, twisting two grids clockwise can enhance the sharpness of the text
2. ​​DIP switch on the back of the module​: Turn the number 1 position to force the horizontal and vertical screen display. Last year, the subtitles of the subway station were inverted, but this was not dialed.
3. ​​Reset key next to the power supply interface​: Press and hold for 5 seconds to reset all parameters, but be careful to clear the brightness configuration.

There is a real case: a friend adjusts the lyrics and subtitles in a bar, but he can't draw the vertical effect when he is alive. Finally, he found that the DIP switch is blocked from the melon seed shell. So,​Hardware cleaning is more important than anything else​​。

Software setting four-fold door

Don’t panic when opening the control software, focus on these four places:

1. ​​Resolution matching​​: Actual tests have been found,Set the screen to be 90% clearest with the actual resolution​, for example, fill in 1728x972 on the P4 screen
2. ​​Font Rendering Engine​​: Choose "anti-aliasing enhancement" mode, so that small font strokes will not be blurred into mosaics
3. ​​Rolling speed calibration​: The formula is very simple - screen width (meter) x 0.8 = the best number of scroll seconds, 3 meters wide screen takes 2.4 seconds/circle
4. ​Multilingual switching​: When doing foreign trade display, remember to check "Two-way text support" to avoid reverse Arabic subtitles

Last week, I helped the wedding company to adjust my blessings, and the word "Xin" in the groom's name always appears in garbled code. Later, I cut the GB18030 encoding in the font library before I could finish it, which almost delayed the auspicious time.

Common fault first aid kit

Don't rush to report to repair if you encounter these tricks:

• ​​The text lacks strokes​: 80% of the cable contact is poor, just use an eraser to wipe the gold fingers
• ​​The color is purple​: Adjust the red drive voltage to the range of 3.2-3.4V and immediately return to normal
• ​​Flashing non-stop​: Turn off the "energy-saving mode" and increase the refresh rate to above 1920Hz

Remember this universal formula:​"One erase, two pressures and three restarts"​——Wrink the interface, press the wiring, and restart the control system. Last year, the large screen of the exhibition showed snowflakes. This trick was used to solve the problem in five minutes to avoid being deducted by Party A of 100,000 yuan.

Parameter settings red and black list

You can write these values ​​in a small notebook:

Focus on grayscale: when making gradient subtitles,​Change the Gamma value to 2.4 most enjoyable​. There is a gym with subtitles beating like an electrocardiogram, which is caused by Gamma setting to 1.8.

Special effects secrets

Want to show off your subtitles? Try these hidden features:

1. ​Particle dissipation effect​: Enter "matrix_2023" in Advanced Settings to activate Easter Egg Mode
2. ​​Voice synchronous scrolling​: Connect a USB microphone to voice-control subtitles
3. ​Multi-screen relay display​: Press and hold Ctrl to drag the text box to achieve cross-screen text linkage

However, I would like to remind novices that the special effects should be used too vigorously. The most outrageous case I have ever seen - the opening ceremony subtitles were added with flame effects, and the audience stared at it for ten minutes and shouted dizzy.

The editor thinks that the subtitle setting is just the same as cooking - the heat and seasoning are just right. Next time you see the subtitles shaking, don’t scold the equipment for being bad, check whether the grounding wire is firm. I heard that the new smart screen can modify typos with voice. If this function is popularized, it will probably save many disabled people. By the way, after debugging, remember to export the configuration file and save it to the network disk. Maybe one day you will be able to rescue the emergency!

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