Momentus Thin ST500LT012

Hi

I have this drive which had heads stuck on platters and got destroyed.
I order a donor and swapped heads. All went smooth.
Plug it to UDMA and got this terminal:
Rst 0x10M
SPINUP FAILED
ExecuteSpinRequest
op=0100 resp=0007
op=0100 resp=0007
LED:000000BC FAddr:00007A43
LED:000000BC FAddr:00007A43
CfwDiscCode Not Loaded: 0002B4E0
LED:000000BC FAddr:00007A43
Rst 0x10M
SPINUP FAILED
ExecuteSpinRequest
op=0100 resp=0007
op=0100 resp=0007
LED:000000BC FAddr:00007A43
LED:000000BC FAddr:00007A43
CfwDiscCode Not Loaded: 0002B4E0
LED:000000BC FAddr:00007A43

I tought that PCB could be bad, so I plugged in the donor HDD PCB to see if it spins. Same thing.
Swapped heads back to donor and got the same log...
Could the PCB had killed the donor HSA???
I believe everything is OK.....
Thanks

I suppose it's possible that it killed them. Though I'd think its more likely that a bad motor killed both PCBs. On your donor, will it spin up if you isolate the head contacts?

I have to check. Only monday now. eheheh

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Nuno, how did you make out with this drive? I have an identical one with identical symptoms. Swapped heads and no joy. I suspect bad media but I'm curious why the "SPINUP FAILED" message. The drive spins up fine with HDA isolated, so it's not seized spindle. At $175-$200 per donor, I'm not keen to proceed without better odds of success.

Hey Larry

Sorry for the late reply...
I remember this case: I tried to do head swap, but no go. Heads were killed. Case closed, because the client didn't want to spend more $$

Thanks, Nuno. Judging from the condition of H0, it's platter contamination in my case, which the customer said to abandon. I'm beginning the work at learning how to decontaminate heads/platters, and was doing fine with this case...until I damaged the lower head mount. I've found that Acetone and a cleanroom wipe do wonders at cleaning platters and just need to get some decent knitted polyethylene swabs to improve my head cleaning technique. Chinese foam-tipped wipes dump lots of crap onto platters!

Here are a few pictures to illustrate:

1. H0 before cleaning: http://prntscr.com/97mtfb
2. H0 after cleaning : http://prntscr.com/97mtnb
3. H1 as received : http://prntscr.com/97mu0i
4. Damaged H0 mount (arghhh): http://prntscr.com/97much

Edit: I've since learned that the Acetone itself seems to be responsible for the deformation of the slider carrier, causing the slider to curl upward: http://prntscr.com/985rle

What kind of digital microscope are you using? The resolution and contrast are great.

it's this one, by Andonstar. That stand is great! Clamping the HSA in a "third hand" and rotating it so the light reflects off the slider surface allows you to zoom right in almost perpendicular to the slider, which is good because depth of focus is minimal at that magnification. These shots were cropped from the full image.

I was asked where the contamination on H0 came from. Here's the answer:
H0 platter surface damage #1: http://prntscr.com/9830i7
H0 platter surface damage #2: http://prntscr.com/9830cm
H0 platter surface damage #3: http://prntscr.com/9830ni

The real question is, who/what caused this damage? The above images appear at different locations around the perimeter of the bottom surface. It wasn't caused by the head damage I caused when I cleaned H0 because I never turned it on after the cleaning--plus, I just discovered that it is H1's mount that is damaged, not H0's mount. (Picture 4 is inverted.) The platter surface of H1 looks fine. At this point, I have no idea what caused the damage but it's quite dramatic!