PCB failures (Such as Hitachi PCB 0A71428<\/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 Hitachi PCB 0A71428 failures are listed below, along with tips for replacing & repairing.<\/p>\n
Q: Hitachi TravelStar 7K500-250 HTS725025A9A361 NVRAM<\/b><\/p>\n
have a Hitachi Travelstar 25″ drive, [url] ldf4n6serveftpnet\/images\/IMG_1487JPG [\/url] Model HTS725025A9A361 Made In Thialand P\/N 0A73352 MLC DA3247 The top 2 lines of the PCB are ldf4n6serveftpnet\/images\/IMG_1488JPG 0A71428 DA3005A I ran diagnostics on the drive using an Atola I need a donar PCB and maybe a head stack replacement as well After some research it appears that many of the new Hitachi drives store adaptives and other information in the NVRAM stored <\/p>\n
Q: Drive Needed – Hitachi TravelStar 7K500-250 HTS725025A9A361<\/b><\/p>\n
Model: HTS725025A9A361 Made In: Thailand Date: Mar-2010 P\/N: 0A73352 MLC: DA3247The top 2 lines of the PCB are: 0A71428 DA3005AI’m looking to purchase a donar drive.<\/p>\n
Q: Firmware Required – HTS725050A9A364 DA3688<\/b><\/p>\n
Dear Fellow Guru’s, Requesting firmware for: HTS725050A9A364 – 500GBPN: 0A78275MLC: DA3688PCB: 0A71428 DA3005CRegards.<\/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 Hitachi PCB 0A71428) 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