Specification:
Uses: to solve the 9-28-inch LCD monitor power supply maintenance problems
1. foot yellow line: DRAIN, power control side, then the original high-power MOS power supply D-pole. Generally the middle of the power switch tube feet.
2. feet black line or powder line: GND, module ground 300v, then the negative capacitor, the same line can be. Directly connected to a large filter capacitor negative.
3. feet red line: VCC, the module power supply side, then the feedback winding terminal rectifier capacitor after the positive, continuous power supply, the voltage between 12-18V.
4. feet white line: FB, voltage feedback, then optocoupler 4 feet, please check the optocoupler 3 feet heat, not heat,then put the optocoupler short to the hot ground, while the 4-pin peripheral circuit disconnected.
5. feet green line: start start pin, then +300 v capacitor positive Customers must be optimistic about the specific connection method after modification, do not blindly random access.
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