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networkpc3000
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: March 28th, 2010, 18:47 
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Joined: December 16th, 2007, 10:26
Posts: 1151
yeah. you can. as well is replace it.

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data recovery service[/b]
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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: March 30th, 2010, 9:39 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
I tried to power it on with the TVS removed and it didnt power up at all :(

TBH expected this, surely it needs to be bridged otherwise no power will get to the PCB at all?
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harddrivespecialist
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: March 30th, 2010, 10:27 
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Joined: January 15th, 2008, 11:06
Posts: 1419
Location: Providence, RI. Boston, MA USA
grimsheeper wrote:
surely it needs to be bridged otherwise no power will get to the PCB at all?

No, its not. You other parts on the board that failed.
:(
Seek for a professional help.

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fzabkar
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: March 31st, 2010, 5:35 
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Joined: September 8th, 2009, 18:21
Posts: 17096
Location: Australia
grimsheeper wrote:
I tried to power it on with the TVS removed and it didnt power up at all :(

TBH expected this, surely it needs to be bridged otherwise no power will get to the PCB at all?

That looks like the 5V TVS diode. Your next DIY option is to replace the board and transplant the EEPROM chip, assuming it survived. The EEPROM is powered from an onboard switchmode regulator, so it's probably OK.
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Eric Lee
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 3rd, 2010, 8:21 
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Joined: April 25th, 2009, 11:42
Posts: 383
Location: China
Hi,

We have this working PCB in stock too, pls contact my hotmail.

Thanks
Eric

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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 7th, 2010, 16:02 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
You got mail!
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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 14th, 2010, 17:51 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
Guys!
Help!

I managed to source a new PCB, but now the drive simply clicks.... and then powers down (it seems to stop spinning)

Windows managed to find it as a 4GB drive, but would not initialise it, and it isnt detected properly in BIOS - though it can see something...

Whats the matter with it now?!
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fzabkar
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 14th, 2010, 18:04 
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Joined: September 8th, 2009, 18:21
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Location: Australia
grimsheeper wrote:
I managed to source a new PCB, but now the drive simply clicks....

Did you transfer the EEPROM?
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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 14th, 2010, 18:56 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
transfer it from what? i havent got one...
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fzabkar
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 14th, 2010, 19:30 
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Joined: September 8th, 2009, 18:21
Posts: 17096
Location: Australia
grimsheeper wrote:
transfer it from what? i havent got one...

It's the item identified as "flash":
http://en.rlab.ru/doc/images/hdd_main_parts/PCB1.jpg
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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 14th, 2010, 20:15 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
ahh that.

I havent no.

I do have the old PCB with that on...

I take it it needs de-soldering and transferring?
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fzabkar
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 15th, 2010, 4:33 
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Joined: September 8th, 2009, 18:21
Posts: 17096
Location: Australia
grimsheeper wrote:
ahh that.

I havent no.

I do have the old PCB with that on...

I take it it needs de-soldering and transferring?

Yes.

BTW, the failure and success story in this thread may be instructive:
viewtopic.php?f=1&t=15335
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grimsheeper
 Post subject: Re: New member : Help needed - PCB for Seagate 1TB
PostPosted: April 15th, 2010, 18:08 
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Joined: March 25th, 2010, 20:30
Posts: 16
Location: UK - Wales
grrrrrrrrrrrrrr looks damn fiddly!

I have a colleague who solders very well, if this is the answer then its what we will have to do...
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