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Here I share with you this last experience due to overheating failure in a Real ISO source; I hope it is to your liking. Especially this type of failure that occurs in some non-real sources as well. A CLARIFICATION: The SB340 Schottky diode should always mark a low value, but in my case that value varies (150 - 180 mlv) and when I connected it to the 220VAC, it burned the 5K resistor again; it is a case that sometimes occurs when the component presents a leak; that is, it marks you in vacuum with the multimeter but with the current it alters. That is why I had to replace it with the FR302 diode. Sometimes in practice something else happens. If you liked it, I invite you to give it a LIKE and Subscribe .... And hoping to reappear soon. Greetings. Here 3 very good videos: • PC POWER SUPPLY that DOES NOT TURN ON. • POWER SUPPLY LOSING POWER. S... • PC POWER SUPPLY REPAIR LOSING POWER. S...