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PCB rom toshiba hard drive

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DRforensic

Post subject: PCB rom toshiba hard drive

Posted: September 11th, 2014, 17:23

Joined: September 4th, 2012, 8:19
Posts: 76
Location: Dominican Republic

Hi All, anybody know which one is the actual rom chip on the pcb I`m uploading?
it is running 1,5 Tb drive MQ01ubb150

Attachments:

File comment: usb 3

DSCN1734.JPG [ 260.5 KiB | Viewed 6899 times ]

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fzabkar

Post subject: Re: PCB rom toshiba hard drive

Posted: September 11th, 2014, 18:00

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

IC602 is the usual circuit reference for the "ROM".

The way to distinguish between IC602 and IC606 it follow their pins back to their respective controllers. IC602's signal pins trace back to the Marvell MCU, whereas IC606's pins go to the bridge IC. This means that IC602 contains HDD firmware while IC606 contains bridge firmware.

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pcimage

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 2:12

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

It is IC602 as fzabkar says.

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northwind

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 3:41

Joined: January 28th, 2009, 10:54
Posts: 3547
Location: Greece

Be careful with IC602, they are heat sensitive.

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hhddrec

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 3:42

Joined: August 13th, 2008, 13:10
Posts: 811
Location: World

As northwind said, head sensitive, and hard to exchange.

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michael chiklis

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 4:52

Joined: December 5th, 2011, 5:38
Posts: 1740
Location: Verona, Italy

I think is very easy to unsolder it, expecially if you use gel flux.
If you use gel flux you can unsolder chips with lower heat (and have better result)

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DRforensic

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 6:51

Joined: September 4th, 2012, 8:19
Posts: 76
Location: Dominican Republic

do you have the name or producer for gel flux? I can only find in liquid. thanks

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michael chiklis

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 6:56

Joined: December 5th, 2011, 5:38
Posts: 1740
Location: Verona, Italy

I use Amtech RMA-223-UV Flux Paste 10cc:
http://www.drivestar.biz/amtech-rma223u ... fi5hon4r87

You can find it also on Aliexpress:
http://www.aliexpress.com/store/product ... 70617.html

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AesEbu

Post subject: Re: PCB rom toshiba hard drive

Posted: September 12th, 2014, 7:43

Joined: August 13th, 2014, 18:59
Posts: 27
Location: France

More expensive, you have ChipQuik, incredible with nand chip. :shock:

http://fr.farnell.com/chip-quik/smd1/ki ... dp/1850214

You also can use heat-resistant scotch tape, to avoid 1mm resistors or condensators fly away with hot air.

http://www.drivestar.biz/bga-kapton-tap ... p-411.html

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