Ca-888 12-18V Lcd Universal Power Supply Board Module Switch Tube 300V For Lcd Display Tv Maintenance

Pin 1: DRAIN, power control terminal, connected to the D terminal of the original high-power MOS power transistor. Usually the middle pin of the power switch tube Pin 2: GND, module ground wire 300V, connected to the negative terminal of the capacitor, can be on the same circuit. Directly connect the negative terminal of the large filtering capacitor Pin 3: VCC, module power supply terminal, connected to the positive terminal of the rectified capacitor of the feedback winding terminal, continuously powered, with a voltage between 12-18V. Pin 4: FB, voltage stabilization feedback, connected to pin 4 of the optocoupler. Please confirm that pin 3 of the optocoupler is connected to the hot ground. If not, short-circuit the optocoupler to the hot ground and disconnect the peripheral circuit of pin 4. 5pins: Start pin, connected to the positive terminal of a+300V capacitor Package includes: 1 piece The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.