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Do mean the 1.8v voltage become 0V when the 0 ohm resistance of L33 is welded?
The 2.7V in the figure below should be 1.8V, right?
Remove L33, C214, C216, C213, and test whether there is short circuite on the two pads of C213.
If all the above are satisfied, it can be determined that had1511 is faulty.
If you can't find it, you can contact your seller to get the chip or get it from us, but you need to pay the freight from China to you.
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