MultiDrive – free backup, clone & wipe disk utility from Atola Technology

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 
  Previous topic | Next topic 
Author Message
Miss Di
 Post subject: ROM Chip
PostPosted: July 22nd, 2015, 7:57 
Offline

Joined: September 5th, 2014, 9:14
Posts: 72
Location: France
Attachment:
20150722_120214.jpg
20150722_120214.jpg [ 1.92 MiB | Viewed 5703 times ]
Hello,

I have a ST3320820A with PCB burnt. On the PCB there are 3 8-legged chips but just one of them start with 25xxxxx. I replaced this one but the disk still not working.

Does anyone know if one of the other 2 chips belongs to the ROM as well.

Picture of PCB below:


Thanks.
Top
 Profile  
 
pcimage
 Post subject: Re: ROM Chip
PostPosted: July 22nd, 2015, 9:47 
Offline

Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK
"ROM" chip is the top one.

How do you mean "still not working" ?

Still dead?

_________________
PC Image Data Recovery
http://www.pcimage.co.uk

New!! HDD-PCB.COM for all your PCB and donor HDD requirements!
Top
 Profile  
 
Miss Di
 Post subject: Re: ROM Chip
PostPosted: July 22nd, 2015, 9:52 
Offline

Joined: September 5th, 2014, 9:14
Posts: 72
Location: France
Hello,

Still not working means strange clicking noises. Heads are OK.
Top
 Profile  
 
pcimage
 Post subject: Re: ROM Chip
PostPosted: July 22nd, 2015, 12:21 
Offline

Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK
Miss Di wrote:
Hello,

Still not working means strange clicking noises. Heads are OK.


How do you know heads are OK?

You've changed the heads assembly, which includes preamp?

_________________
PC Image Data Recovery
http://www.pcimage.co.uk

New!! HDD-PCB.COM for all your PCB and donor HDD requirements!
Top
 Profile  
 
data-medics
 Post subject: Re: ROM Chip
PostPosted: July 22nd, 2015, 15:04 
Offline
User avatar

Joined: April 3rd, 2011, 0:19
Posts: 2003
Location: Providence, RI
Miss Di wrote:
Hello,

Still not working means strange clicking noises. Heads are OK.


I just love posts like this. :lol:

It's like saying: "My hard drive is not working, but there's nothing wrong with it"

_________________
Data Medics - Hard Drive, SSD, and RAID Data Recovery Service Company
Top
 Profile  
 
Miss Di
 Post subject: Re: ROM Chip
PostPosted: July 28th, 2015, 9:05 
Offline

Joined: September 5th, 2014, 9:14
Posts: 72
Location: France
Thanks for all your suggestions.

Does anyone have a general guide to check PCB's? Like which components should be check and what expect from each one?

Thanks,
Top
 Profile  
 
fzabkar
 Post subject: Re: ROM Chip
PostPosted: July 28th, 2015, 16:10 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
What was burnt on the original PCB?

_________________
A backup a day keeps DR away.
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: Google [Bot] and 29 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Switch to mobile style
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group