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HI I have a FSP200-61GT SPI switching power supply with a burned out Mosfet on the high voltage side. There is a (I think)a .5 or 1 watt resistor on both sides of the mosfet. But they test good, my problem is the Mosfet has a resistor 0n the left leg and I think it had one on the middle leg but it is melted (that's left and middle looking at the mosfet from the front). I need to know the value of the middle resistor ? Thanks Jim

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Answers :

I think it's usually about 820 - 1K Ohms... It;s the emitter resistor.In saying that we generally don't repair these SMPSU's anymore as they are so inexpensive these days like NZ$45.00 for a 350 Watter. Also 80% of the time the repaired supplies fail again shortly after due to the stress put on the other components, by the initial problem.Good luck.
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HI I have a FSP200-61GT SPI switching power supply with a burned out Mosfet on the high voltage side. There is a (I think)a .5 or 1 watt resistor on both sides of the mosfet. But they test good, my problem is the Mosfet has a resistor 0n the left leg and I think it had one on the middle leg but it is melted (that's left and middle looking at the mosfet from the front). I need to know the value of the middle resistor ? Thanks Jim


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