XPS 13 9343 Identify burn motherboard component

[warguello]

Hi, please I need your help with a serius problem, months ago my Dell XPS stopped charging, I tried all the recommended methods (try original charger, power connector cable, drain battery) but nothing worked. finaly I disassembled the motherboard and discovered that near the "PQ101" there is a burned component, but I cannot identify it to replace it. I leave a couple of photos, maybe you can help me. thaks a lot.
I am not an expert in electronics, and less in integrated circuits. When I tried to clean the surface of the component, it disintegrated a bit.

[warguello]

Re: XPS 13 9343 Identify burn motherboard component

In another thread mcplslg123 said that could be "PD102" but doesn't looks like...!!

[raajkumar]

Re: XPS 13 9343 Identify burn motherboard component

It is a diode.

[tomodachi]

Re: XPS 13 9343 Identify burn motherboard component

it is a diode on charger ID rail. Blown due to a short circuit or non-geniune charger.
you can replace that with AZ5725 diode.
Once I had the same issue and replaced it with AZC199-02S, reserved pin 3 and 1, removed pin 2 of AZC199-02S and properly soldered it to PD102s place. Worked without any problem.

[warguello]

Re: XPS 13 9343 Identify burn motherboard component

Thanks for the answers. I have a couple of questions:
1- can I replace this diode with a "PESD5V0U2BT,215" ESD Suppressor Diode TVS Bi-Dir 5V Automotive 3-Pin SOT-23 T/R (I have some of this one available at the moment), I leave you the datasheet:

https://www.datasheets.com/en/part-d...peria-81821049

2- This diode has a ground and the line to protect, in the image that I originally posted, which is the ground and which is the line? As I said, I don't have much knowledge about it!

[mon2]

Re: XPS 13 9343 Identify burn motherboard component

Yes.



To locate the ground -> meter in lowest resistance mode. One meter probe to shield / metal ground; other meter probe to the ESD pad. One pad should be ~0 ohms, the signal side will not with this low resistance.

[SMDFlea]

Re: XPS 13 9343 Identify burn motherboard component

Cross reference https://www.badcaps.net/forum/showpo...5&postcount=28

[JaroTech]

Re: XPS 13 9343 Identify burn motherboard component

The side of the diode near PQ101 is ground.

[warguello]

Re: XPS 13 9343 Identify burn motherboard component

Hello everyone. I happily inform that I actually replaced the burnt diode, and everything works correctly, it already detects the battery, the charger, it no longer gives error messages in BIOS and the laptop works correctly. Thanks to everyone who helped me solve this problem.

[tomodachi]

Re: XPS 13 9343 Identify burn motherboard component

Perfect !