Description
Specification
LCD power universal window control module super display LED LCD TV power supply module board
size : 19.5*13.5mm
Uses: to solve the 15-21-inch LCD monitor power supply maintenance problems LCD power board damage a large proportion. One of the power to drive the chip, high-power power switch,sampling resistor damage is the most common, because of these component models,variety,often because there is no same spare parts, and can not be repaired.Should be the majority of customer needs to develop a friend of the general-purpose LCD power supply module.
The module has: wiring is simple, easy to install, save time, improve the success rate of maintenance and so on.Encountered themaintenance problems of friends may wish to consider the development of this under a universal power supply module.
Uses: to solve the 15-21-inch LCD monitor power supply maintenance problems LCD power board damage a large proportion. One of the power to drive the chip, high-power power switch,sampling resistor damage is the most common, because of these component models,variety,often because there is no same spare parts, and can not be repaired.Should be the majority of customer needs to develop a friend of the general-purpose LCD power supply module.
The module has: wiring is simple, easy to install, save time, improve the success rate of maintenance and so on.Encountered themaintenance problems of friends may wish to consider the development of this under a universal power supply module.
Second, the pin definition
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.Can not read more than the following comparison to see a few times it!
Third: Use
1. Remove the original power supply chip on the board (usually 8 feet), and the switch (mos tube)
2. Check the 300v capacitor, as well as the capacitance of the load side of the package there is no drum, a problem on the first
replacement
3. Check the load side there is no short circuit, ad board, high voltage board
3. Check the load side there is no short circuit, ad board, high voltage board
4. Connect the module to the corresponding line, and carefully check that there is no wrong, if wrong can cause the module burst
5. Installed in the original location of the radiator, pay attention to insulation, not short-circuit
6. Power, measuring voltage is not the output, there is no output, then check the cause
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Yellow lead
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DRAIN. Power control terminal,connected to the original high power MOS.power supply tube Dpole Generally the middle leg of the power switch tub
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Black lead
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GND. module ground wire 300V . the negative pole of the capacitor. can be on the same line. Directly connected to the negative pole of the large filter capacitor
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Red lead
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VCC,the power supply end of the module, connected to the positive pole of the rectifried capacitor after the feedback winding end.continuo usly suppliee power, and the voltage is between 12-18V.
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White lead
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FB, voltage feedback, connect the optocoupler 4pin,please confirm that the optocoupler 3 pin is connected to the hot ground.If itis not hot. short the optocoupler to the hot ground and disconnect the 4-pin peripheral circuit.
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Green lead
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Start start pin. connect the positive pole or +300V capacitor
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Product Description
Certificates & Production Processes
Packing & Delivery
1. Normal packaging.
2. Export carton.
3. Custom packing.
4. All orders are will be shipped within 3-25 days after customers confirmed payment.
Payment&Shipping
PAYMENT Standard payment terms: pay 30% deposit in advance, 70% balance before shipment. Online trade assurance order, all is up to you. More payment terms could be provided! (T/T,PAYPAL WESTERN UNION) SHIPPING After-sales Service: 100% strict inspection and test before shipment. Replace in one weekonce original defective goods found on arrival. Enjoy one year warranty.
FAQ
Q: What is the minimum order quantity for your products? A: If you need a small order, please contact us Q: How long is your delivery time? A: The product will be sent within 3 days after payment is confirmed, and the delivery time is 3 to 6 days Q: Do you test or inspect all items before delivery? A: Yes, we tested and checked all items before shipment. Q. What is your warranty? A: 60 days after receiving the goods. Our products are 100% tested before being shipped. If the goods are defective, please notify us within 3 days after delivery. Any item must be returned as is to be eligible for a refund or payment. The buyer is responsible for all freight incurred. Q: How do I pay for the order? A: We accept wire transfer, Western Union, Pay Pal, moneygram, escrow (if you prefer other methods, please contact us)