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thatdellguy
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:39 
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Location: In your hard drive.
Open the drive in a clean room and make sure the platters and filter are free from defects before you spend any money. Why do you suspect a faulty pcb?

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:45 
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I did check the platters after seeing it had been opened. They are clean and in good shape.

I suspect the pcb mainly because the heads move back and forth across the platter, but the drive is not recognized by bios. Drive spins up fine.

I was hoping to pick up a whole disk if I could get enough info, that way if it is the head, I would have a set of those as well as a matching pcb.

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:47 
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Also, forgot to mention the drive stopped working after power spike & blackout. That mainly led me to suspect electronics (PCB)

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thatdellguy
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:47 
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Location: In your hard drive.
post44366.html?hilit=dcm%20top%20bottom#p44366

DCM 101

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:49 
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Also useful, but again how do I find out MY dcm?

I don't mean to frustrate you, I appreciate your expertise and your time. This is all good info. But if I can't properly identify my drive, I can't get good working parts for it.

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thatdellguy
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 19:56 
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Location: In your hard drive.
http://harddrive-repair.com/hard-drive-parts.html

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 20th, 2008, 20:09 
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that's exactly what i needed......thanks thatdellguy

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pepe
 Post subject: Re: How to identify a Disk
PostPosted: May 21st, 2008, 16:45 
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Location: Hungary
Hi,

Preamp is damaged IMHO after the power surge.

pepe

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 21st, 2008, 17:25 
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If that's the case, how do i determine replacement heads/preamp with having the DCM of the disk?

Any ideas?

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thatdellguy
 Post subject: Re: How to identify a Disk
PostPosted: May 21st, 2008, 20:07 
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Location: In your hard drive.
I agree with pepe, but you really need special tools to verify the preamp circuit or your going to make it worse. :shock:

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vrocco
 Post subject: Re: How to identify a Disk
PostPosted: May 21st, 2008, 20:36 
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OK but in the absence of special tools......replacing the pcb and the preamp/head should work no?

Overkill, maybe, but if it fixes the drive, the client is willing to pay for it.

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