Measured everyhing,no low resistance anywhere,measured even the shunt resistors 0.1 OHM...except on the cpu there is 4 ohm on one inductor,but that voltage stays on on the phone charger...What next?Why does the board work on 900mA and 5V from a phone charger,but not on a laptop usb-c charger?
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Hi all,
I sent my ProArt Studiobook 16 OLED (H7600, 12th Gen Intel) to the local repair guys to have a very simple DC in port replaced. I sourced the part myself on accessoires-asus (french company) after struggling to find the right part in the UK. It looked completely the same to the installed part from what I can tell. Originally the only issue with the laptop was a bad / loose DC connection, and so the computer and battery acted completely normal aside from a very poor connection that would fail at certain angles. After the repair was completed I brought it home and used it for... -
Hi everyone,
I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.
⚠️ New Problem: One USB-C Port Only Works in One Orientation... -
I got this recently as-is. Gigabyte 1070 video card.
DVI port is removed. I don't know why.
A wire is soldered across two spots where it looks like the DVI port was. I don't know why.
I've read of people simply ripping out DVI ports and the rest of the cards still working fine. Never read anything about soldering a wire in there for some reason.
The card seems to work fine, except it's stuck in low clock speeds. While starting a game or benchmarking, the clocks may momentarily increase to around where they should be, then goes way back down and stays... -
I have a Dell Latitude 7410 with an Intel i7 10th Gen CPU. The USB Type-C port is not working, and since it's the only charging port on the device, I'm unable to charge the laptop.
I inspected the motherboard and found that the IC labeled TPS65988 had a short circuit. I ordered a replacement IC from Alibaba and replaced it. The short issue is now resolved, but the laptop still doesn't charge, and the Type-C port remains non-functional.
After doing some research, I found out that the TPS65988 needs to be programmed after replacement in order to function properly.
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Hi guys.
I wanted to purchase HP Elite x2 1012 G2 laptop but I saw that the charging port is type C and I remember Mr.Sorin from electronicsrepair on yt telling that the worse charging port for laptops is type C and on other channels I saw that they mostly fail especially HP Spectre X360, so I assume I should avoid laptops with type C charging port (dunno why) or it just depends on model?
He mentioned that laptop fail because of that port,and simply become dead,and most of the models fail because of that port.
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