Recent content by milanov007

  1. M

    Is it only the U12 chip that I need to transfer?

    so I took it to a data recovery company. they made it spin and recovered most of the data. $800 later :| oh well... next time I need to be careful how I connect things!
  2. M

    Is it only the U12 chip that I need to transfer?

    what happens if the U12 is dammaged?
  3. M

    Is it only the U12 chip that I need to transfer?

    if the hard drive has a single platter, as it does in my case, how easy will it be to get the data out? what donor drive should I use to switch the platter with? even if I find a donor drive to switch the platter with do I still need to implant the U12 bios chip?
  4. M

    Is it only the U12 chip that I need to transfer?

    just an update on the resistance test... I redid the resistance test from the power connector the the 18 connectors at the HSA on the board with a digital multimeter this time, I found out: with the original PCB the resistance goes to 0 ohms at connector 8 ONLY, but with power supply ON the...
  5. M

    Is it only the U12 chip that I need to transfer?

    i just want to say thank you ...you helped me with lots of info! I see that it is a very complicated and fragile job from here, that is if I will have to exchange the preamp... this is best to leave to professionals. Without the correct conditions and tools, I could mess things up permanently...
  6. M

    Is it only the U12 chip that I need to transfer?

    So how do I go about chooseing a donor drive to extract the preamp (heads) ? What do I need to look for in a donor drive so that the heads and the preamp match?? is there a tool I can purchase to do the job? or is there a more accurate measurement I can on the preamp? Perhaps directly on the...
  7. M

    Is it only the U12 chip that I need to transfer?

    So here are some details: my original PCB board has 3 large chips, i will call them U1, U2 and U5: U1 reads: SH6601AF 16A638W CJCMWSFP G4 U2 reads: SAMSUNG 122 K4H2816380-LCCC H2816 YEE019GNC U5 reads: M 88i9045-TFJ2 PAN9320.3 117 BOY NC Now for the replacement PCB board again U1, U2, U5...
  8. M

    Is it only the U12 chip that I need to transfer?

    before I do the testing... should I have the PCB screwed on the hard drive while I test the resistance or not? Should I do the resistance test with both PCBs?
  9. M

    Is it only the U12 chip that I need to transfer?

    i see... thank you for clarifying... I will do that when I get home. I will measure the resistance as you said and I will post the part number comparison of the boards thank you
  10. M

    Is it only the U12 chip that I need to transfer?

    i really don't know exactly how to test the preamp... are there any photos or video or something I can follow??? I want to determine if it is the preamp. I will post tonight the part numbers on both boards... I still keep thinking it maybe the board diffrence, I don't know. Do you think that...
  11. M

    Is it only the U12 chip that I need to transfer?

    maybe this will explain http://www.flickr.com/photos/29455880@N07/8452165324/ so in other words the 12 volts went where the orange section is supposed to go in the link you sent me.
  12. M

    Is it only the U12 chip that I need to transfer?

    What happened is the following stupidity: I connected a 12V power supply to my 2.5" hard drive by mistake for about 1 minute, then when the drive heated up a bit I realized what I have done. Next I connected it correctly and the hard drive did not spin or get recognized by my computer anymore...
  13. M

    Is it only the U12 chip that I need to transfer?

    Hello, hard drive model is WD3200BPVT-24ZEST0 with a back sticker 2061-771672-R04 04RD7 on the PCB board. When swapping PCB boards, is it only the U12 chip that needs transferring or the Marvell MCU also?