All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 32 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 16:13 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
I tested with a heat gun that was a little bigger, around 2.5cm in circumference. Got both U12 off smoothly. But the card now does not seem to start or give any start to the disk. They look completely except slightly burnt on contact plastic. Guess you should have a smaller one as indeed surrounding components are sensitive to heat? Tested another card and they became the same. But without anything burned.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 19:05 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
I tried the card without the pcb connected and it didn't start. Do i need it just for the disk to start? Have i burnt the 2 cards for using a to big heat gun? I only had it for max 6 to 10 seconds.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 20:19 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Is this a data recovery task, or are you just practising? Do you have an SPI flash reader?

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 20:36 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Yes from a drive with a broken power card. I had 1 broken drive that worked when i switched the card from one of the working. The only thing was i forgot to switch the pcb from the working. When i had done it the drive won't even start. Can i have burned something? It was my first time.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 21:09 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
No flash reader unfortunately


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 21:30 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Is it possible that the original fault on the original PCB damaged U12? Is the SMOOTH chip burnt?

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 21:44 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Smooth chip? I am a beginner. The original pcb didn't even gave any power to the drive. I tried with my other working card and then it worked. But i forgot to change the U12. When i had changed U12 the card didn't gave any power to the disk. Have i burned any sensitive parts? Should the pcb start the disk without U12? I tried but no power.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 21:50 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Oldschool297 wrote:
Smooth chip?

Sorry, it appears you may have an older PCB. I was asking whether the motor controller chip (SMOOTH) was burnt, but this may not be relevant in your case.

Are either of these boards yours?

https://sep.yimg.com/ay/yhst-14437584971410/wd-2060-001265-001266-701265-701266-hard-drive-controller-card-pcb-circuit-board-firmware-transfer-3.gif

https://sep.yimg.com/ay/yhst-14437584971410/wd-caviar-wd1600bb-00fta0-wd1600bb-00ftao-160gb-ide-pcb-circuit-board-3.gif

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 22:00 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Sorry i should have posted. I tried with the second card and right U12 but it don't even start the disk. Shouldn't the disk start without U12? https%3A%2F%2Fwww.imagebam.com%2Fview%2FMEAKAKB


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 22:01 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
https://www.imagebam.com/view/MEAKAKB


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 22:08 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Nothing will happen if U12 is not present.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 22:18 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Thank you. I suspected that. And the disk cannot even spinup without it? Can i use some glue to the U12 to get it in right place? It looks to be a little misplaced.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 23:02 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
U12 contains the boot firmware. It's like a BIOS. The motor won't do anything if U12 is not present.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 23:07 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
I will try to get another try with the heat gun. I will post a detailed photo after.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 18th, 2022, 23:28 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Maybe you should invest in a proper hot air station. Heat guns are more appropriate for stripping paint.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 19th, 2022, 0:49 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
The best photos i could get. No motor response. https://www.imagebam.com/view/MEAMTWC


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 19th, 2022, 2:25 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
I guess it is important that the U12 is exactly on the right place? I have tried 3 different. Still the same. No hard drive motor response. It don't even start.


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 19th, 2022, 4:15 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Does the U12 need to be attached in a certain way. With the text in front or backwards?


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 19th, 2022, 4:37 
Offline

Joined: November 7th, 2020, 5:31
Posts: 1084
Location: The_UK
There's an indent on the chip this is pin 1. It goes to pin 1 on the pcb, your pictures are not clear enough to see if there are any marking (a dot, triangle etc) or a pin number. Looking at the last picture you took Id say it was bottom left.

_________________
Data Recovery Services in the UK.
https://www.usbrecovery.co.uk/


Top
 Profile  
 
 Post subject: Re: WD2500JB change PCB U12.
PostPosted: May 19th, 2022, 6:20 
Offline

Joined: May 18th, 2022, 6:25
Posts: 26
Location: Sverige
Thank you. So there are a No 1 pin on the U12 that should be on no 1 on the pcb?


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 32 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 49 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:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group