Power burnout on HP laptop, help identify components!

[kimkim]

Problem is, this laptop went smoking after the user connected it with wrong polarity psu,and also with 20V instead 19V
So, does it make sense to try to repair it, since it was connected with wrong polarity?
Actually, if i connect psu in the good way, the blue led near the plug goes on, but no signals from laptop.
What i've found in the pcb, are this 2 components that smoked (see picture in the center), and sincerely
i am unable to understand their name and how to search for equivalent one spare... (what is JS 6?)

I can only get out the ID on the pcb (PD15,PD16) and some details from the pdf schematics i've found in
another thread of this forum, what does this PD stands for? Does exist a legend of some kind for this nomenclature?
Please help!! thank you!

[dj_ricoh]

Re: Power burnout on HP laptop, help identify components!

the problem is:
1. model of the notebook
2. number of the MOBO , model.
3.client or your project?

[kimkim]

Re: Power burnout on HP laptop, help identify components!

sorry,
1.model is HP Pavilion dv6625el
2.motherboard DA0AT3MB8F0 rev.F
3.it will be my first try to repair a pcb, a complex pcb, i have some solder experience, well not really a client, is a girfriend so in the worst scenario I'll probably sell the lcd and other parts and go buy a newone...

Thank you!

[tomodachi]

Re: Power burnout on HP laptop, help identify components!

sorry,
1.model is HP Pavilion dv6625el
2.motherboard DA0AT3MB8F0 rev.F
3.it will be my first try to repair a pcb, a complex pcb, i have some solder experience, well not really a client, is a girfriend so in the worst scenario I'll probably sell the lcd and other parts and go buy a newone...

Thank you!

Hi, exactly same happened to me before and same components were broken.
I remember it like yesterday, burnt part is just a protection diode and it visual code is "LG"
if u have any scrap HP motherboard you can easily find and replace it. Just go for the diodes typing "LG" on it.
Good luck.

[kimkim]

Re: Power burnout on HP laptop, help identify components!

Is otherwise possible to find such diode on place like ebay?
no hp mobo here but i can search on shops... thank you!

[tomodachi]

Re: Power burnout on HP laptop, help identify components!

Is otherwise possible to find such diode on place like ebay?
no hp mobo here but i can search on shops... thank you!

Not only HP, almost every laptop has this diodes. All you need is check the DC in circuits at scrap motherboards.