Search for HP probook 470 G4 motherboard image

[insomniux]

I have laptop which recently started giving problems. It could not be powered on battery anymore (although I think the battery is not completely discharged) and also powering with the charging device (gives 19.5v) does not work. After a while some smelly smoke came out of the board. I've openend the laptop and it appeared that especially one component had stains of overheating. As it is impossible to read the text on the component (I guess it's a mosfet) I'd like to know if there is someone who has a detailed image of this board or could advise which component it is and has the specs of the component. I may also decide to replace the inductor which is just besides the melted part as it has also some overheating stains. I do have some experience with hot-air soldering so I'm not afraid to replace one or more of the damaged parts.

The specs are:
HP ProBook 470 G4
Board model DA0X83B6HM0

The images of the burnt components (indicated with red):



It's would also be nice if someone knows what this voltage circuit is used for so I could find out if the damage to these components is secondary to other problems.
Thanks in advance
Insomniux

[mcplslg123]

Take note of the two mosfets near coil marked R47 below cpu. Check which one is high side(the one which receives 19V) and which one is low side fet. proceed to replace the damaged inductor/mosfets along with IC connected to this coil.

Its important to replace all the components at one go,else the same mosfet may blow up again.

Do check resistance to GND on both pads of damaged inductor after de soldering the IC/mosfets/inductor before proceeding.

[insomniux]

Thanks for your reply and warning @mcpisig123, my plan was to replace both the mosfets and inductor around the melted parts. What makes you point me to the circuit around the R47 inductor? On the block diagram it suggests it is aimed at powering the power regulator NCP81298 which is located near to the battery connector (other side of PCB). Do you advise to also replace the mosfets around the R47 coil? When I'm right the melted part is a mosfet MDV1595SURH (the high side), the other, at the low side is a EMB20N03V. The same mosfets are also connected to the R47. Do you also suggest to also replace the RT6575AGQW, which is between the melted 3R3 and 2R2 left of it (on the second image)?