HP 6910p Laptop: Power System Issue, Burned Component, UMTS Card Sticker Area

Question

Hello. I have a problem with the power system in my HP. The problem is that I have burned one of my companions and I can not read what is the layout....

p1szcz3k · Answer

search on the google motherboard scheme from your laptop which is the exact company and the exact model

$Przemek$ · Answer

Take a picture and show where this layout is.

zanes · Answer

you know, I will say honestly, I look for nothing and I can not find anything

zanes · Answer

I attach a photo of this system Added after 1 [minutes]:

Anonymous · Answer

This photo is suitable for ... He even did not deign to Colleague to mark this item. The scheme is HERE , but you need to get the appropriate permissions. Alternatively, please search on Asian forums.

zanes · Answer

and as I mark, I will try to paste a better picture because you are talking about what powers you are talking about

danb · Answer

A colleague talks about the rights to the forum, where you will find a diagram. The photo that has been pasted is of poor quality. No one will guess which item you have damaged on the disc.

zanes · Answer

I've already improved

Anonymous · Answer

The second picture is not better. Please paste the normal picture with the correct focus, or give the designation of the item from the disc (eg PU29, PQ43 etc.) - otherwise I will post the thread to be removed.

zanes · Answer

I hope that this photo will be better now

Anonymous · Answer

PU25 - LM393M.

zanes · Answer

I can know what my friend wrote to me

Anonymous · Answer

With this question, the colleague shows a complete lack of knowledge in the topic of laptops. Therefore, to repair a laptop, the only solution for the Colleague is to visit the website.

zanes · Answer

I do not know what's going on with this layout, I may have misspelled the question whether I will replace the power system exactly if it will work because apparently this system is responsible for the entire power supply and how the nickel will burn in a chance to start working

Anonymous · Answer

No one will be able to guarantee this without a colleague.

lazar · Answer

Does any of you know what is the difference between LM393M and LM393 (without M at the end)?
There is still LM393N on the market, but this one is for the rebated montage.
And in this case you need an SMD element for surface montage.

boro1234567 · Answer

Both will fit. Edit. Insert the fragment of the scheme you asked for.

lazar · Answer

Zanes started the topic, which happened to me only when it came out completely in LM393M. The blame was the polarity of the power plug.
I sold a new art in its place so much that I do not have a pad under the first leg and I do not know where to solder it, maybe someone also had this problem and successfully solved it, I put a picture of my current situation.

Do I see correctly that the pad was removed and connected by a green path with solder fields not used under resistors?

Anonymous · Answer

N.1 PU25 goes to KBC1070 on n.116 I suppose that it is also for exchange.

lazar · Answer

And what kind of system is this KBC1070 because I can not see this mark on the motherboard? Is this item near BGA soldered?

slawmix1234 · Answer

Look for an SMD system with 128 legs