820-3332 not turning on, dead short on PP3V3_S5

[djdblaster]

Board is clean, PPBUS_G3H and PP3V42 present.
Took a visual on the board and it looks pristine, except that I've found discolored Q3880 and C3895 had solder balls around.
Then started going through power rails to see what is present and found that PP3V3_S5 gives 0V or is dead shorted 0 Ohms.

Q7260 pins 1, 2 and 6 are good. Others are shorted. So that leaves small chance that it's shorted from L7260 pins 2 backward. I can remove L7260 to test the theory, but I don't think so since PP3V3_S5 goes everywhere.

I've injected 1V into the rail, but nothing pops out on thermal.

 

[2informaticos]

Removing L7260 will discard Q7260, but U7201 continues connected on pin 1 of L7260.
So correct way will be lift one pad of L7260 and U7201.
Be aware, do NOT power up the board if you remove U7201!!!

If you have a pure short, less than 1 ohm, injecting voltage should heat something.
Remove the heatsink, will be more easy to detect the heat on the board...

 

[djdblaster]

Fired up thermal again and took another look. Oddly enough, C9680 (PP3V3_S5) was shorted. Replaced it, laptop works good.

Thanks. Mark as solved please.