Common faults and solutions of LED point light sources
In recent years, domestic landscape lighting has developed rapidly, and outdoor decorative landscape lighting for the purpose of beautifying urban landscapes and commercial advertising is receiving more and more attention and applications; LED point light sources rely on their unique advantages. It can be used for embellishment and decoration, and can be combined into lines for contour lighting, and can be combined into a large pixel screen in an array to play various video animation effects synchronously online. It has become a main product in lighting projects; LED point light sources are in There will always be more or less faults in actual use.
Next, I will introduce some common fault phenomena and analysis solutions of LED point light sources in detail.
Fault 1: After the power is turned on, the fault light of the controller flashes, the point light source does not light up, and there is no animation effect output?
Answer: This situation is generally because the controller does not read the card correctly and does not output an effective control program. The reasons may be:
(1). The SD card is empty and there is no program file
(2). The file name of the program in the SD card is wrong, causing the SD card to not be recognized
(3). The SD card is not formatted as required before copying the program files
(4). The program files in the SD card do not match the lamp control IC and controller models.
(5) Test after replacing the new SD card and controller to rule out the possibility of damage to the SD card and controller
Fault 2: After the power is turned on, the indicator light of the controller is normal and there is signal output, but the point light source has no effect?
A: This is usually the case for the following reasons:
(1). Check whether the signal line of the lamp and the controller are properly connected
(2). The signal of the external control lamp has an in/out direction, check whether the control signal enters from the signal terminal of the first lamp
(3). Check the effect file in the SD card, whether the model selected by the LED is consistent with the chip used in the current lamp
(4). Check whether the lamp is powered normally
Fault 3: After the controller is connected to the lamp, the effect changes, but the lamp strobes, and the indicator light of the controller shows normal?
Answer: (1). The signal ground wire between the controller and the lamp is not connected
(2). The power supply voltage of the lamps is insufficient
(3). The effect made in the SD card is wrong, the lamp chip selected when doing the effect does not match the actual lamp chip
(4). The distance from the controller to the first light is long, and the signal transmission is unstable
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