The maintenance cycle for LED rental screens needs to be adjusted according to the usage scenario and environmental conditions. It is generally recommended to turn on the screen at least once a month for more than 2 hours, and follow the maintenance guidelines below:
I. Daily Maintenance Recommendations
(1) Power System Inspection
Before each use of the LED rental screen, ensure the power connection is secure. Use a multimeter to check the input voltage stability (fluctuation range ≤ ±5%) to avoid damage to the driver IC or LED beads due to voltage instability. When restarting after long-term inactivity, it is recommended to increase the voltage in stages (e.g., increase brightness by 20% every 5 minutes) to reduce current surges.
(2) Display Content Management
The LED rental screen should avoid continuously displaying static high-brightness images (e.g., full white or full red for more than 4 hours). Extend the life of the LED beads by rotating dynamic images or reducing brightness (≤ 80% of rated value). Use professional color calibration software to regularly check color uniformity; if the deviation is >15%, recalibration is required. (3) Enhanced Environmental Protection
The waterproof gaskets of the LED rental screen should be inspected every six months for aging (visual inspection for cracks or deformation). The enclosure's sealing performance should be tested with a pressure tester (no leakage for 30 minutes under IP65 standard). Indoor screens should be kept away from air conditioning vents to prevent condensation from causing short circuits.
2. Regular Maintenance Plan
(1) Cleaning Maintenance:
It is recommended to clean the LED rental screen every 1-3 months, focusing on removing dust and dirt.
(2) Module Inspection:
The LED beads of the LED rental screen should be checked at least once a year, and damaged beads should be replaced promptly.
(3) Professional Repair:
It is recommended to perform a systematic maintenance on the LED rental screen annually, including in-depth inspections of heat dissipation and circuit testing. 3. Special Scenario Maintenance
(1) Humid Environment (Plum Rain Season/Coastal Areas)
The LED rental screen should be powered on for at least 4 hours per week to dissipate moisture using component heat. During storage, place a desiccant inside the box (relative humidity must be controlled at <60%), and check the desiccant for discoloration every 2 weeks.
(2) Extreme Temperature (Low Temperature in Winter/High Temperature in Summer)
In low-temperature environments (<-10℃), the screen must be preheated to above 0℃ before transportation to prevent LED beads from cracking. In high-temperature environments (>40℃), an external cooling fan must be added to ensure air convection efficiency is increased by more than 30%.
(3) High-Frequency Rental Scenarios
For screens used more than 10 times per month, 20% of the LED modules should be replaced every 3 months (prioritizing replacement of vulnerable edge areas) to reduce the risk of sudden failures. Establish an LED rental screen maintenance file, recording the location of each failure and the replaced parts, providing data support for subsequent design optimization.
