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 Post subject: HITACHI HDS725050 KLA 360
PostPosted: October 16th, 2009, 13:00 
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Hi to all,

I Have a case that i have 2 disks that have burned the PCB because of the water.

I Have donor PCB, but the motor "stick" it have been degraded by the water.

Attachment:
MOTOR-01.jpg
MOTOR-01.jpg [ 48.71 KiB | Viewed 6552 times ]


What can i do here in this connectors, if someone happen this before can share with me please.

I think this model for platter swap they are not so good.


Thanks
ZeBong

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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 16th, 2009, 17:11 
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Joined: March 28th, 2008, 7:52
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You can solder 4 wire to the spindle's solder points and to the pcb directly.
This will work, it that is all the problem.

Janos


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 17th, 2009, 7:20 
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are u sure the drive internals are free from the water?

pepe

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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 17th, 2009, 7:39 
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I can not guaranty 100% that the water enter the drive, the one place that i see is the filter place.

When the water had contact with the PCB it should have a SC and the PCB have burned in some chips.

Is possible that when the PCB get burned or SC the pre-amp get damaged or the motor get damaged also ?

When i open one disk and i see 10 HEADS 5 plattes ....... wow ..... anyone haved change heads or plattes in this model with sucess ?

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" что случилось в России - останется в России "
" Россия еще раз"


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 17th, 2009, 14:22 
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1, check the water entered or not!
It is important, before start.

2, preamp is more than safe than not safe fortunately.

3, heads changing, it is not a problem.
But platters.... uhm... :D

Janos


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 19th, 2009, 8:09 
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Hi Janos,

I check the drive and the only way to enter some water it was by the filter in the cover.

But inside the disk and the filter is clean so i think the water as not there.

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" Россия еще раз"


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 19th, 2009, 13:08 
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Yes, i think too.
Now you can replace the pcb and move the NVRAM, solder the spindle, and get the data. ;)

Janos


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 19th, 2009, 13:18 
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Janos check PM

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" Россия еще раз"


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 19th, 2009, 13:23 
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done, now you check. :D


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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 24th, 2009, 7:54 
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Thanks Janos,


Open the disk and notice this plastic thing :


Attachment:
KLA.jpg
KLA.jpg [ 34.65 KiB | Viewed 6369 times ]


Attachment:
HITACHI-KLA-350.jpg
HITACHI-KLA-350.jpg [ 190.15 KiB | Viewed 6369 times ]



Is this really necessary for this disks working ? :x :x :x

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" что случилось в России - останется в России "
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 Post subject: Re: HITACHI HDS725050 KLA 360
PostPosted: October 24th, 2009, 8:12 
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did you broke it? :)
This is a limiter and protector as well if i am right.
You have more disks, so i think the best if you replace it before start...

Janos


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