March 10th, 2011, 5:08
March 10th, 2011, 8:18
March 12th, 2011, 1:02
March 12th, 2011, 7:52
fzabkar wrote:I'm not a DR guy, but if the drive spins up, then it doesn't sound like a PCB problem to me.
If you wish to replace the PCB, then you will need to transfer the 8-pin NVRAM chip, or its contents, from patient to donor. I can't see their markings, but U3 and U6 are the most likely suspects. Can you identify the part markings?
BTW, there appear to be 3 fuses on the PCB -- F1 (2A), F2, and F3.
March 13th, 2011, 3:22
March 13th, 2011, 22:01
fzabkar wrote:My understanding is that U6 is the NVRAM that needs to be transferred to your donor. Your supplier should be able to confirm this.
BR93L66RF-WE2, Rohm, Microwire BUS Serial EEPROM, 256×16bits, marking RL66, SOP8:
http://www.rohm.com/products/databook/g ... 76-w-e.pdf
http://www.rohm.com/products/databook/e ... r93l-e.pdf
U3 is a serial flash memory.
LE25FV055T, 512Kbit, 64Kx8, Sanyo, Serial flash memory, 8-pin:
http://www.semiconductor-sanyo.jp/ds_j/NA0447.pdf
March 14th, 2011, 19:30
March 15th, 2011, 1:58
fzabkar wrote:I'm not in the data recovery profession, so I can't offer accurate PCB matching advice. However, I would match as much as possible and then transfer U6. Your PCB supplier should be able to confirm whether a particular board is compatible.
March 16th, 2011, 1:23
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