Amazed by the grat forum you guys created and keep expanding. It's like a never ending well of knowledge.
I'm just now approaching to the world of pcb repairs and I'm amazed by how experienced many of the users are.
I hope my username brings someone a little laugh whenever I'll introduce myself
im_trying
New Member
Last Activity: Today, 11:15 AM
Joined: Yesterday
Location: Turin
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I checked the the LDO I found in the schematics, which there are two. A 1.8v near the PD controller, and a 1.2v on the other side of the board. The 1.8v is present, the 1.2v is not. I guess we're making progress but I don't really know how to procede. Is it a bad EC chip? A bad BIOS for the EC chip?Leave a comment:
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I don't know how to do that exactly... Still a newbie, but [I]im trying[/I]. Should I check for any pin in particular on the chip? Like LDO?I don't know how to do that exactly... Still a newbie, but [I]im trying[/I]. Should I check for any pin in particular on the chip? Like LDO?I don't know how to do that exactly... Still a newbie, but [I]im trying[/I]. Should I check for any pin in particular on the chip? Like LDO?Leave a comment:
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Have you tried searching the schematics by the laptop name? On this forum there are a lot of emLeave a comment:
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It is getting through both mosfets of dc-in, it measures 20v when the usb-c sends 20v. And 5v when it sends 5v.
The 3.3v coil and the 5v coil are both present.
All measurements are taken with the motherbard out and nothing attached.
I just noted that with the battery attached, sometimes the white led on the power button doesn't turn on, even though all the coils have the same voltages.Leave a comment:
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Dell Latitude 5310 2 in 1 Laptop does not power on, shorted capacitor replaced but not solved
Laptop does not power on but has a fix white light on power button, when connected to power.
I found, while trying to diagnose, a hot spot in the motherboard and found it to be a shorted capacitor (see photo below) on the 2.5v (2D5V_S3 on schematics). After replacing it with one from a donor board, still, the board does not turn on...
The usb-c meter reads upon connection 20.1v and 0.00a, with some occasional flashes to 0.03amps. After 10/15 seconds circa, it goes to 5.2v and draws an almost constant 0.07amps. (same behaviour as before)
To my fingers, nothing seems...
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