Hello, I have two identical circuits and one has a component with a hole in it, it is some sort of MOSFET driver, as two gates of large MOSFETs are connected to the lower right pin of it, I'd rather avoid guesswork if positive identification is possible.
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I listen carefully to the opinions of experts. It seems to be the ldo of the 1.8 volt rail, but it is difficult to accurately check it with the upper marking, so the help of experts is needed! The upper marking is L1CA. Thank you very much for your comments. thank you... -
Hi All,
I'm trying to repair a PCB that has some surface mount SOT23 devices that apear to be transistors but testing them on the board are giving confusing results.
Its named FS45 but I can't find a datasheet that seems correct.
The device is used in 10 places on the PCB. In 4 cases they appear to be controling triacs and the attached picture it shows it connected to a BT136 triac with the FS45 connected to the gate leg of the BT136.
Can anyone identify the device and suggest an alternative?
Many thanks.
PS: I have... -
Hello everyone,
I have a problem with my Acer predator XB241YU screen. When I plug it in, the startup LED turns on instantly, and I can't turn off the screen without unplugging it.
After disassembly and inspection of the electronic cards I found what looks like a broken inductor, it is marked with the letter A and is at location L58.
In the first photo you can see the broken component, in the second photo you can see where it is on the board, in the third photo you can see the silkscreen and in the fourth photo you can see the identification sticker of the main board
I... -
Hey guys! my name is kyle, new to motherboard troubleshooting and a little confused still on chip identification if yall could help identify this chip..
also if you could teach me how to fish on this particular topic... i did read through the ic identification sticky, and couldnt identify this with that info... thanks!
EDIT, just realized thats a 5 and not an S in the first line... finding results for it now. cant figure out how to take down thread so im not embarrassed... -
Hello everythone
i have on the bank hp elitebook 840 G4 6050a2854301 mb a01 missing 5V cause IC is damage on this board 5V and 3V IC is separatly
i have 3V but no 5V i found 5V IC damage . i need our help to find IC identification, the 3v ic has mentionned ALVH 572 i found reference but no see something like IC . I poste the 3V here if someone have is reference. i don't found motherboard schematique or boardview...
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