オリジナル投稿者： Grigore Ciobanu

テキスト:

Just saw a video of Rossmann. Look for shorts. It is luckily a capacitor that shorts the U7501. These oscilations of 5 v indicate to a short of one of capacitors around this chip. If the chip is dead, you do not get this so called power loop. Hope this will help. I do not know what is the problem exactly but it is 100% related to U7501 that creates these 5V. I am still looking for the solution ;)

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