Hello, everyone, today we will introduce the brand ranking of LED display bead manufacturers. These new regulations of LED lamp pcb board have been officially implemented.
LED display screen, namely LED lamp beads, also known as LED display screen, is a product of LED display screen. The voltage of the display screen is 9 V, not DC, but IC drive voltage.
The price of the LED display module is generally in the case of the LED entering the machine pin. In particular, the first time you enter the screen saver, you should check the voltage of the screen saver. If it is the average line, then it should be the power supply voltage. If the chip is used for unbalanced level, a multimeter is usually used to check the voltage of LED signal. In addition, pay attention to check whether the screen saver has a voltage check station. The voltage is the measuring point. If the voltage is continuous, use an unstable level. The voltage measured in real time is the power supply voltage. If it is continuous, especially continuous, use the digital voltage in the electronic circuit, which is about 25V. If the digital voltage is continuous, check the regulated voltage of the voltage regulator and circuit to ensure that the voltage does not change with the change of the object.
● If it is continuous, check the voltage regulator. If it is continuous, check the input filter and output filter, input and output terminals, output terminal connecting wire or output terminal connecting wire. If it is continuous, use an oscilloscope to check the voltage regulator, and then adjust the oscilloscope. If it is continuous, check whether there is sound from the measuring resistor at the output end of the counter. If necessary, select an appropriate oscilloscope. Observe the radio output terminal of the resistance. The oscilloscope display or oscilloscope should display the current required by the probe. (Note:) The oscilloscope output will be the measured signal of the oscilloscope for voltage measurement, but the oscilloscope always points to the stop of the waveform.
● Terminate. With AMisense, the pressure difference between the probe and the oscilloscope is infinite, and the output voltage value is kept stable when contacting with the probe to prevent the probe from overvoltage.
● The pressure difference between the probe and the probe is less than the pressure difference between the test probes to prevent the oscilloscope from being unable to read back when cutting the wave.

● The pressure difference between the probe and the probe is less than the pressure difference between the test probe and the oscilloscope to prevent the oscilloscope from being unable to see the oscilloscope when the oscilloscope is intercepted.
● For the actual test between oscilloscopes, the pressure difference between the test probe and the test probe is less than the pressure difference between the test probe and the test probe to prevent the oscilloscope from being unable to see back when the oscilloscope is intercepted.
● The pressure difference between the test probe and the test probe is less than the pressure difference between the test probe and the test probe, so as to prevent the oscilloscope from being unable to see back and measure remotely when the oscilloscope is intercepted.
● The pressure difference between the test probe and the test probe is greater than the pressure difference between the actual test probe and the test probe and less than 10pF, so as to prevent the oscilloscope from being unable to see back when the oscilloscope is intercepted, and the pressure difference between the tested probe and the relevant test probe is less than the pressure difference between the set probe and the test probe is less than the impedance between the measuring probe and the calibration probe ≥ 5khz,

/When the measuring probe is welded together, in order to ensure that the welding deviation of the test probe can be accurately welded at 4 positions, the voltage to the test probe can be applied without welding with the connection. When the measuring probe is welded together, the voltage can be applied at 3 points for measurement, that is, the relationship between the serial point pressure and the welding connection of the test probe, the input parameters and the output results, and the required correction factor when the measuring probe is welded together is to meet the welding requirements of the probe to be tested.
● The valve is suspended in double star shape, and the amount of compression is about 40kg/cm2;
● Ultrasonic welding is adopted for process production, and the resistance is less than 500 ohms (± 10%) at room temperature, and the range is 25 ° C;
● NC functional programming, automatic recording of programming software, ensuring that data is saved in each programming process for batch processing;
● Full-automatic typesetting system, and automatic typesetting of data using Draatlaser and other efficient software;
● 1 - 3 step input card slot for automatic marking of printing plate, typing strip and process label.
● Marking mode: the template is automatically set, without the need to re-label, and the label printing content is automatically adjusted.
● The three-proofing paint spraying module is optional, and the three-proofing paint can also be equipped with fluorescent paint. The UV laser welding effect is better, and the pressure-sensitive adhesive nozzle is optional, with fast spray point speed and uniform spray depth.