LED Display Screen Repair Method Common Fault Handling

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Release time :2023-04-27

Estimated reading time: 1 minute

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Introduction

LED display failure and cause analysis

LED display failure and cause analysis

Symptom 1: One unit board does not light up

LED display failure and cause analysis

Causes of failure:

1. There is no +5v;

2. The data line is broken.

Fault analysis and treatment:

1. The power supply is broken, replace the power supply; 

2. Replace the data cable.

Symptom 2: Full screen is not bright

LED display failure and cause analysis

 

Causes of failure:

1. The main controller does not have +5v;

2. The whole screen does not have AC power;

 3. The computer settings are incorrect.

Fault analysis and treatment:

1. The power supply is broken, replace the power supply;

2. Check the power supply circuit;

3.  Reset the computer

Symptom 3: A certain unit is always on red (or green)

LED display failure and cause analysis

 

Causes of failure:

1. There is a problem with the data cable connecting this unit;

2 There is a problem with the corresponding distribution board;

3. A certain unit board is faulty.

Fault analysis and treatment:

1. Reinsert the data cable and pay attention to the direction;

2. Replace a data cable;

3. Replace the distribution board;

4. Replace the unit board.

Symptom 4: Abnormal communication

LED display failure and cause analysis

 

Cause of failure:

1. Whether the software setting is correct;

2. Whether the communication line is connected;

3. There is a problem with MAX323

Fault analysis and treatment:

1. Restart the computer and turn on the monitor again;

2. Re-set;

3. Measure with a digital meter;

 4. Replace the MAX23 chip

Symptom 5: The entire screen is lit every few lines horizontally, and is not lit every few lines

Cause of failure: The network is not plugged in properly.

Fault Analysis and Handling: Plug in the Network

Accessory location

1. DC 5V line

LED display failure and cause analysis

2.Data cable

LED display failure and cause analysis

3. Network interface

LED display failure and cause analysis

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Table of contents

The Uses of Led Screens for Events and Businesses
For engagement
To display information
Visibility
Illumination
Factors events and businesses need to consider before renting LEDs?
Budget:
Aspect ratio
Here are the common aspect ratios:
Pixel pitch
Purpose
Where is the Venue?
The advantages of our rental LED screen
Conclusion
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