PCB failures (Such as Seagate PCB 100475720<\/b>) affect thousands of hard drives every year and often result in permanent data loss. A hard drive may suddenly fail to power on, and a computer may not detect that it is plugged in. Some failed hard drives will also show up in computer BIOS with incorrect brand\/model information. PCB failures can also cause physical issues such as read\/write head failures, and many PCB failure symptoms overlap with the symptoms of other physical hard drive issues.<\/p>\n
Some emails from customers of Seagate PCB 100475720 failures are listed below, along with tips for replacing & repairing.<\/p>\n
Q: Seagate ST3500320NS terminal<\/b><\/p>\n
Hi, . Have ST3500320NS with firmware SN06, PCB: ZKAJ-7 ?100475720 ?Rev A, from terminal no response, like terminal turned off. Same PCB with firmware SN04 work with terminal. . PCB REV C with firmware SN06, terminal work ok too.. What shamanic techniques need to unlock terminal ? Unscrew pcb from motor, or chanell shortcut dont help . thx<\/p>\n
Q: DiamondMax22 fw MX1A strange PCB – terminal log TetonST Boot<\/b><\/p>\n
Hello, i’ve this DiamondMax22 STM3500320AS which has an inusual PCB 100475720, usually this kind of hdd have pcb 100466725 o Terminal log Rst 0x20M F3 T>\/2 F3 2>Z LED000000CE FAddr00259C49 Rst 0x20M F3 T>\/1 F3 1>N1 LED000000CE FAddr00289139 I swapped the pcb with 100466725 and did ROM transfer, log is the same But if i insulate both HDA and motor contacts, this is the log Bogus ISR Bogus ISR Bogus <\/p>\n
Q: Where’s the fuse on this PCB?<\/b><\/p>\n
HiI have a Seagate drive wich wont power up. The PCB is a 100475720.I don’t have any compatible PCB to test for now.I have checked TVS and they are OK. My doubt is: is there any fuse? Where is it?? ??… 125810.jpg … 125802.jpgThanks<\/p>\n
Q: ES2 Seagate drives terminal lock<\/b><\/p>\n
I have got 2 ES2 Seagate drives with model no. ST3250310NS and PCB 100475720 REV A. Out of which 1 is OK and 2 are bad. In case when I connect OK drive I get terminal command by clt Z, but when I connect bad drives I could not excess terminal command and it gives error LED0000…. PCB`s is ok. When I connect only pcb , status becomes ready otherwise the drive show busy only.I have tried to short the pins also but no success.Please help me what to do?<\/p>\n
To repair a failure board, the simple way is swapping the failure board with a replacement board. Donor boards on HardDriveParts.com are listed below:<\/p>\n
PCB failures (Such as Seagate PCB 100475720) affect thousands of hard drives every year and often result in permanent data loss. A hard drive may suddenly fail to power on, and a computer may not detect that it is plugged in. Some failed hard drives will also show up in computer BIOS with incorrect brand\/model information. PCB failures can also cause physical issues such as read\/write head failures, and many PCB failure symptoms overlap with the symptoms of other physical…<\/p>\n