0-300V Output with switch led tv backlight tester for TV backlight

The features are as follows:

1. Use high-speed single-chip microcomputer to do voltage sampling test, and drive LED light to display voltage (not the other products on the market use the purchased voltage meter head, separate installation) to achieve board integration, reduce the defect rate (because the current is constant, only the voltage Display function.)

2, 0-300V adaptive voltage, suitable for most series and parallel lamp bead test. During the test, the progressive start mode is adopted, the voltage automatically adapts to the current gradually increase, and the lamp bead is never burned. After three to five seconds, the normal brightness can be achieved. The light bar, the lamp bead and the negative pole are reversed, and the light bar is not burned. And lamp beads.

3. The digital display shows the real-time voltage output with adjustable voltage inside, and the voltage value can be corrected by itself. The digital meter uses a green light-emitting tube. The display shows that 00 indicates a short circuit, and the display 300V is an open circuit. Each group of LED strips on the same LCD TV should display the same voltage.

4, cold and hot isolation, never electric shock. The power cord and the case are designed in one piece, which is easy to carry out.

5, you can turn off the LCD TV screen without disassembling the screen. (The screen with the bad lamp bead is lit up. The LCD TV is generally divided into several groups in parallel. It can be seen by the voltage which group of voltages is different, so as to determine which group of LED lamp beads are damaged)

6. When testing, do not look directly at the lamp bead due to the highlighted version. So as not to hurt your eyes.