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Identifing ROM on Toshiba MK4026GAX

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DanR

Post subject: Identifing ROM on Toshiba MK4026GAX

Posted: February 10th, 2012, 7:29

Joined: November 21st, 2011, 10:05
Posts: 57
Location: England

Hi guys,

Had a drive which didn't spin. Swapped the PCB with an idenical donor. Drive now spins but clicks.

Is there adaptive ROM on these hard drives? (IC12?)

Toshiba
MK4026GAX

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hddguy

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 10th, 2012, 7:33

Joined: November 9th, 2006, 15:15
Posts: 2984

DanR wrote:

IC12

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DanR

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 10th, 2012, 7:40

Joined: November 21st, 2011, 10:05
Posts: 57
Location: England

hddguy wrote:

DanR wrote:

IC12

Thanks for confirming.

Better be safe than sorry!

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fzabkar

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 10th, 2012, 17:15

Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia

FYI, there is a fuse (F1) near the end of the IDE connector. D1 appears to be a TVS diode.

_________________
A backup a day keeps DR away.

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pcimage

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 10th, 2012, 17:28

Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK

F1 is very common to blow

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http://www.pcimage.co.uk

New!! HDD-PCB.COM for all your PCB and donor HDD requirements!

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DanR

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 13th, 2012, 7:44

Joined: November 21st, 2011, 10:05
Posts: 57
Location: England

Thanks guys, Did the ROM transfer and the drive is now imaging.

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Amarbir[CDR-Labs]

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: February 13th, 2012, 12:04

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]

DanR wrote:

Thanks guys, Did the ROM transfer and the drive is now imaging.

Well,
Great Job

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

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helpless

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: May 18th, 2013, 6:11

Joined: February 26th, 2013, 6:58
Posts: 211
Location: Hungary

fzabkar wrote:

FYI, there is a fuse (F1) near the end of the IDE connector. D1 appears to be a TVS diode.

I have a similar board, can you tell me what fuse and tvs you recommend as a substitute? Or is it easier to go for a board? Thanks.

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fzabkar

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: May 18th, 2013, 16:13

Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia

If there is no other damage, then you can remove the diode and bridge the fuse with a blob of solder.

Otherwise ...

Littelfuse Surface Mount Fuses, N = 2A, S = 4A:
http://www.farnell.com/datasheets/48294.pdf

SD05-7, Diodes Inc, marking ZA, 5V, 350W, UNI-DIRECTIONAL SURFACE MOUNT TVS:
http://www.diodes.com/datasheets/ds31594.pdf

_________________
A backup a day keeps DR away.

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helpless

Post subject: Re: Identifing ROM on Toshiba MK4026GAX

Posted: May 22nd, 2013, 4:50

Joined: February 26th, 2013, 6:58
Posts: 211
Location: Hungary

Thank you for your help.

_________________
Those who know don’t talk. Those who talk don’t know.

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