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Alan · Active contributor Joined: 21 May 2009 Posts: 7

Wanted, "DOA", working pcb for:

Name: Seagate Barracuda 160GB ATA
Model: ST3160023A
F/W: 8.01
Config: CXT-01
Date code: 06213
Site code: WU

Anyone know what specs need to correspond? Only firmware version, or all of the above?

Thanks.

edit:
date code doesn't seem important, but could say something of the revision:

Date Code Shape: YYWD or YYWWD
YY: fiscal year, beginning on the 1st Saturday of July YY-1
W[1-9] or WW[10-52]: fiscal weeks from 1st Saturday of July YY-1
D: days from the beginning of week WW (weeks run from Saturday to Friday)

Eric Lee · Posted: Fri May 22, 2009 12:21 pm Post subject:

Hi,

Would you like to send me the high quality picture of both side of your PCB so that we could match what you need. My email: eric_lee8341@hotmail.com

Thanks
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Alan · Active contributor Joined: 21 May 2009 Posts: 7

Will do.
I just removed the pcb, and some of the connector traces on the other side look discolored - does this indicate that the inside of the drive itself is damaged?

sunnydreamspace · Deadharddrive regular +5 Joined: 04 Jan 2009 Posts: 540

hi,
take some pics and send them to my email. i can help. thanks.
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skype: sunnydreamspace

Alan · Active contributor Joined: 21 May 2009 Posts: 7

Does anyone know if the discolored connectors tell if the internals of the HD is damaged?

or if nothing is shown:
http://img132.imageshack.us/img132/962/dsc0125a.jpg

thanks[/img]

harddrivespecialist · Posted: Thu May 28, 2009 6:52 pm Post subject:

This is oxidation. You can remove it with any eraser.

Post more details on behaivour of your drive.
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Alan · Active contributor Joined: 21 May 2009 Posts: 7

[img]http://img194.imageshack.us/my.php?image=pcb1.jpg[/img]

I knew the drive didnt work anymore, because of a short circuit somewhere caused by a surge, but I tried it anyway by connecting it on an ide2usb converter, and it smoked and shot loose at the rectangle. dont know where the defect was in the first place.
any idea what this component is?

harddrivespecialist · Posted: Mon Jun 01, 2009 5:32 pm Post subject:

You might have more problems now.
I would recommend to get accurate diagnostics and proceed with problem resolution.
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Alan · Active contributor Joined: 21 May 2009 Posts: 7

I am still looking for this HDD or PCB. Cool

sunnydreamspace · Deadharddrive regular +5 Joined: 04 Jan 2009 Posts: 540

hi,
i have it in stock. and have your check diode on your PCB? it may got fails. some time you just remove it be fine. please feel free to contact me by email or MSN if need any help. thanks.
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provide Hard drive PCB,entire drive/ Data Recovery service.... big HDD resource. talk to me immediately! sunnydreamspace@hotmail.com
skype: sunnydreamspace

fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

That component is the 12V TVS diode. It is intended to protect the drive from short duration spikes on the +12V supply. It usually goes short circuit in the presence of a sustained overvoltage, thereby shutting down the external supply. However, in your case, the surge was so massive that it desoldered the diode, thereby removing the protection. The usual result is a damaged SMOOTH chip (the motor controller), and possibly damage to the onboard DC-DC converters.

Alan · Active contributor Joined: 21 May 2009 Posts: 7

This is exactly what happened.
The SMOOTH chip and the DC-DC convertor, are these inside the HDD or onboard the PCB?
Nothing happens when I power the pcb while not being on the hdd, when it is, it shorts.

fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

Sorry, I goofed.

By "SMOOTH", I meant a motor controller IC made by ST Microelectronics. Your motor controller is an SH6958 by Texas Instruments. However, the principle is the same.

I can make out at least one DC-DC converter, and possibly a linear regulator.

In any case, all the abovementioned components are on the PCB, not inside the HDA.

I could be wrong, but there is an unpopulated 8-pin location at the bottom left corner of the MCU (the largest chip). It appears to be reserved for a serial flash memory. This would suggest that the MCU may contain unique data that needs to be transferred to the donor PCB. If this is the case, then your supplier should offer to do this for you. A typical cost for such a service is US$10 to $20.