Re: laptop hp dv6-3132 dead, no lights at all
First you will have to remove them one at a time to see which one is shorted.
I can't find anything with those markings so they might be actually different.
The schematics list some Renesas parts (RJK03B9DPA and RJK03D3DPA) so you could replace all the MOSFETs onboard with the Renesas parts. It is recommended to replace all of them and not just 1 in order to keep the phases balanced. Also it is recommended to replace the controller (PU1) too in case it may have died.
Also if one of the high-side MOSFET is dead, the CPU might be dead too. Btw that's why you have to disconnect everything from the board when injecting voltage: if a high-side MOSFET is dead, the voltage you're injecting on the +VIN line goes directly to the CPU.
First you will have to remove them one at a time to see which one is shorted.
I can't find anything with those markings so they might be actually different.
The schematics list some Renesas parts (RJK03B9DPA and RJK03D3DPA) so you could replace all the MOSFETs onboard with the Renesas parts. It is recommended to replace all of them and not just 1 in order to keep the phases balanced. Also it is recommended to replace the controller (PU1) too in case it may have died.
Also if one of the high-side MOSFET is dead, the CPU might be dead too. Btw that's why you have to disconnect everything from the board when injecting voltage: if a high-side MOSFET is dead, the voltage you're injecting on the +VIN line goes directly to the CPU.
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