Instant messaging service
Provide remote technical guidance through telephone, WhatsApp, E-mail and other instant messaging tools to help solve abnormal situations during the use of the display.
Parts return to factory for repair
☆ Definition: Faulty parts are mailed to Highmight for repair service.
☆ Operation:
Feedback material problems through Highmight official website or after-sales service contact number (if Highmight determines that the product has a possible fault, it will provide project number and address information for repair).
Write the project number on the surface of the packaging box and the express delivery slip, mark it as required and send it to the address provided by Highmight. Please use the original packaging box for packaging to prevent transportation damage Returned products should be packaged and transported in an appropriate manner and insured in the name of the customer company.
Highmight is not responsible for any damage caused by improper packaging, improper transportation or other factors during transportation.
☆ Return time limit (calculated from the date of receipt of the parts):
|
Parts Name |
Service response time |
|
Sending card/receiving card/function card |
Issued within 15 working days |
|
Switching Power Supply |
Issued within 15 working days |
|
Modules |
Issued within 15 working days |
|
Other accessories or equipment |
Issued according to specific circumstances |
After-sales service regulations
Warranty period
The warranty period starts from the date of acceptance and is one year. If the contract stipulates the warranty period, it shall be implemented in accordance with the contract.
After-sales service scope
Failure of hardware and connectors in the display screen, failure of the display screen control system, and spare parts and equipment stipulated in the contract
Failure.
Paid and unpaid services
|
During the warranty period |
|
|
1. Instant messaging service 2. Factory repair service for functional faulty parts |
Free service during the warranty period |
|
1. Display screen failure caused by non-Highmight installation and construction 2. Display screen failure caused by improper human operation 3. Display screen failure caused by natural disasters 4. Technical support services for major events 5. Other services outside the contract negotiated by both parties |
|
|
Out of warranty period |
|
|
1. Instant messaging service |
Free services |
|
2. Other after-sales services besides instant messaging services |
Paid Services |
Pixel loss rate
|
Pixel pitch P |
Full screen pixel out-of-control rate (Pz) |
|
P≤2mm |
Pz≥10 PPM |
|
2mm＜P≤4mm |
Pz≥20 PPM |
|
4mm＜P≤8mm |
Pz≥50 PP |
|
8mm＜P＜20mm |
Pz≥80 PPM |
|
P≥20mm |
Pz≥100 PPM |
Precautions for display screen operation
1.Turn on the screen: first turn on the control computer so that it can run normally, then turn on the LED display screen.
2.Turn off the screen: first turn off the power of the LED screen, turn off the control software, and then shut down the computer correctly; (turning off the computer first without turning off the display screen will cause bright spots on the screen, burn the lamp, and have serious consequences).
3.When turning on and off the LED display screen, the interval time must be greater than 5 minutes.
4.The screen can be turned on and powered on only after the computer enters the engineering control software.
5.Avoid turning on the screen in a full white screen state, because the system's impact current is the largest at this time.
6.Avoid turning on the screen in an out-of-control state, because the system's impact current is the largest at this time: A The computer has not entered the control software and other programs; B The computer is not powered on; C The control part power is not turned on.
7.When the ambient temperature is too high or the heat dissipation conditions are not good, be careful not to turn on the screen for a long time.
8.When a line appears very bright on a part of the LED display, you should pay attention to turn off the screen in time. It is not advisable to open the screen for a long time in this state.
9.If the power switch of the display screen often trips, you should check the screen or replace the power switch in time.
10.Regularly check the firmness of the hanging part. If there is looseness, pay attention to timely adjustment, re-reinforcement or update the hanging parts.
11.According to the environment of the display screen and the control part, avoid insect bites, and place rat repellent if necessary.
12.Do not place green plants in front of the installed display screen.
13.Do not place air conditioning outlets in front of or above the screen, and the temperature difference between the back and front of the screen should not be too large (to avoid condensation).
Power supply precautions
1.The LED module is powered by DC +5V (working voltage: 4.2~5.2V), and AC power supply is prohibited; The positive and negative poles of the power supply terminals are strictly prohibited to be connected in reverse (Note: Once connected in reverse, the product will be burned or even cause a serious fire).
2.The power supply voltage of the LED display screen: 100-240V Frequency: 50HZ±5%.
3.The safe earth contact is reliable, the ground wire and the neutral wire are reliably isolated, and the power supply is connected away from high-power equipment.
4.If short circuit, tripping, burning wire, smoking and other abnormalities are found, the power supply should not be repeatedly tested, and the problem should be found in time.
5.Keep the power supply stable and do a good job of grounding to avoid lightning strikes. Do not use it in harsh natural conditions, especially in strong thunderstorms.
6.The large screen must be powered in steps, because the maximum power state of the entire screen will have an impact on the entire power distribution system.
7.The LED display screen is not allowed to play the full white screen with the highest brightness for more than half an hour, so as not to cause excessive current, power cord heating, LED lamp damage, and affect the service life of the display screen. It is recommended to play dynamic videos;During the use of LED display products, the power supply cannot be turned on and off continuously. The two operations should be separated by at least 1 minute.
8.Non-professionals are prohibited from touching the internal circuits of the large LED display screen to avoid electric shock or circuit damage.
Cleaning precautions
1.Regular cleaning and maintenance: After the LED display screen has been used for a long time, more dust and traces of rain will accumulate on the screen, which requires regular and timely cleaning to prevent affecting the viewing effect.
2.If you want to clean the surface of the module, please use a soft brush and brush it gently. Do not use any liquid substances to clean the surface of the LED module, otherwise the LED lamp beads may be damaged.
3.Correct wiping: The surface of the large screen of the LED display screen can be wiped with alcohol, or a brush or vacuum cleaner can be used for dust removal. Do not wipe it directly with a wet cloth.
Moisture-proof and storage requirements
1.Storage temperature requirements: Ambient temperature -40℃≤t≤60℃, after the vacuum packaging is opened, the LED product must be stored in an environment with a temperature <30℃ and a humidity <60%.
2.According to the environment of the display screen and the control part, avoid insect bites, and place rat repellent if necessary.