Seagate HDD PCB 100535704 ,,,,near 15 pin socket burnt ...what is the name of this component. | Tech Support Forum
![ST31000524NS 9JW154-036 KA05 9459 D 100579470 REV C 3.5'' SATA 1TB Seagate Constellation ES circuit board +FW Seagate repair fix swap PCB circuit board parts donor board replacement burnt controller board green ST31000524NS 9JW154-036 KA05 9459 D 100579470 REV C 3.5'' SATA 1TB Seagate Constellation ES circuit board +FW Seagate repair fix swap PCB circuit board parts donor board replacement burnt controller board green](https://s.turbifycdn.com/aah/yhst-14437584971410/918062928-13.gif)
ST31000524NS 9JW154-036 KA05 9459 D 100579470 REV C 3.5'' SATA 1TB Seagate Constellation ES circuit board +FW Seagate repair fix swap PCB circuit board parts donor board replacement burnt controller board green
![Please explain me parts A and B in this image and give me advice, how I could measure their function. This is Seagate 100687658 REV C HDD logic board. HDD does not Please explain me parts A and B in this image and give me advice, how I could measure their function. This is Seagate 100687658 REV C HDD logic board. HDD does not](https://i.redd.it/7dafskyn16ha1.jpg)