On the screen:
1. Clean the LED display, remove the dust and stains on the surface of the bulb and the mask to avoid its impact on the brightness. If you need to replace the mask, please make sure that the color of the mask is the same as before, otherwise the display will be affected, especially during the day. After correction, it will not be much improved;
2. Replace the defective module: some lights are not bright, there are many dead lights, the scanning is not normal, the overall light point is too dark (the resistance may be wrong), the cable or socket problem is affected, etc... to ensure the final display , Scanned and normal images should not be too dark, always bright, even bright;
3. Receiving card upgrade: If the currently used receiving card does not support calibration or the number of loading points is insufficient, you need to upgrade. Due to the risk of dead cards in the receiving card upgrade, the customer needs to contact the control system company in advance for the upgrade and related processing;
Time and environment:
Calibration collection needs to be carried out in an environment without wind, rain and fog. Therefore, the customer needs to give a correction time according to the local weather environment, or take corresponding measures to ensure that the collection equipment collects accurate data in a non-interference environment as much as possible. The correction effect is good.
