Dell XPS 13 9360 No charge

[Andreasbest]

Hello.
I have a XPS 13 on the bench that doesn't charge.
The jack seems fine as i put a needle on center pin and it doesn shortcircuit with the pin 3 that is PSID.

Now, not sure if this is a real problem but i looked on PL102 and nearby is a tiny black SMD that looks bent and/or cold soldered (perhaps a diode?)
I marked it with a red rectangular in one of the photos, unfortunately it's impossible to take a more clear picture as it's extremely tiny.
What do you suggest?

Schematics attached.
Thank you in advance!!

[khaahk]

Re: Dell XPS 13 9360 No charge

It turns on but does not charge the battery? Then look towards charger circuit (PU300).

[Andreasbest]

Re: Dell XPS 13 9360 No charge

Yes turn on but doesn't recognize the adapter's wattage and therefore doesn't charge.
Seems like the PSID is broken somewhere.
What should i look at PU300?

[mcplslg123]

Re: Dell XPS 13 9360 No charge

pr103 Checked??

[Andreasbest]

Re: Dell XPS 13 9360 No charge

pr103 Checked??

Goodmorning!
Where is it? Can't find it.

[khaahk]

Re: Dell XPS 13 9360 No charge

If charger is not recognized then its not about PU300.
PR103 is most likely near the PQ100.

[Andreasbest]

Re: Dell XPS 13 9360 No charge

Near PQ100 i see one black resistor that has continuity in both pin.
Right above the PQ100 though is the black SMD i mention in first post that looks weird, is not straight and on bottom pin i see the PSID but not on the top.
Check the picture, is very close

[SMDFlea]

Re: Dell XPS 13 9360 No charge

The black SMD part is PD102

[Andreasbest]

Re: Dell XPS 13 9360 No charge

The black SMD part is PD102

A diode? So it's regular to see PSID on one pin but not on the other, correct?

[SMDFlea]

Re: Dell XPS 13 9360 No charge

A diode? So it's regular to see PSID on one pin but not on the other, correct?

PD102 is a TVS diode .

[Andreasbest]

Re: Dell XPS 13 9360 No charge

Sorry for my ignorance but that means it's behaviour is ok or should i do something?

[SMDFlea]

Re: Dell XPS 13 9360 No charge

Its ok ,probably been replaced before. PR103 is connected to PQ100 pin 3 according to the schematic. It should measure 33 Ohms. Test the voltage as well .

https://cdn.badcaps-static.com/pdfs/...6c55fee955.pdf

[Andreasbest]

Re: Dell XPS 13 9360 No charge

I think is this (red rectangle), no sign of PSID in either pins, haven't check voltages yet.
Is this the PR103 though?

[Andreasbest]

Re: Dell XPS 13 9360 No charge

I checked voltages on PQ100 too
I only see 5V on gate pin and 0 at drain.
I check only the motherboard, without battery connected by the way.

[SMDFlea]

Re: Dell XPS 13 9360 No charge

I checked voltages on PQ100 too
I only see 5V on gate pin and 0 at drain.
I check only the motherboard, without battery connected by the way.

Remove PD102 and see if the voltage comes up .Test resistance to ground as well, before and after removing PD102. Try another DC-IN jack .

[Andreasbest]

Re: Dell XPS 13 9360 No charge

Remove PD102 and see if the voltage comes up .Test resistance to ground as well, before and after removing PD102. Try another DC-IN jack .

Top pin of PD102 is shorted to ground with and without the diode on it.
Without PD102 i got 3.3v at drain and source too!

[SMDFlea]

Re: Dell XPS 13 9360 No charge

The board will run without PD102 but its better to get a replacement as its there for protection.It most likely shorted because a non genuine poor quality charger was used.
Have you done the other check on PR103 as suggested by other members.Also check the voltage on both pins.

.

[Andreasbest]

Re: Dell XPS 13 9360 No charge

If PR103 is the one directly connected to source of PD102 it has 3.3v on both pins

[SMDFlea]

Re: Dell XPS 13 9360 No charge

Check if the battery charges now .

[Andreasbest]

Re: Dell XPS 13 9360 No charge

Yes it charges all good.
Problem is that i can't find AZ5125-01H anywhere in EU and my donor pcbs don't have any on them.
Does anyone have one? I'll pay the shipping cost!