View topic - Samsung - common PCB problem

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Samsung - common PCB problem

Page 1 of 1

[ 9 posts ]

Previous topic | Next topic

Author

Message

laptokowiec

Post subject: Samsung - common PCB problem

Posted: September 2nd, 2013, 6:47

Joined: October 24th, 2009, 8:16
Posts: 281
Location: Gdansk - Poland

I receive many Samsung drives with dead pcb.
Usually transil diodes or 0 ohm resistors are ok.
Whats their Achilles heel from your experience ?

_________________
data recovery Poland

Top

dmarques

Post subject: Re: Samsung - common PCB problem

Posted: September 2nd, 2013, 9:38

Joined: November 6th, 2006, 6:58
Posts: 1752

I would say users :mrgreen:

Top

laptokowiec

Post subject: Re: Samsung - common PCB problem

Posted: September 3rd, 2013, 5:54

Joined: October 24th, 2009, 8:16
Posts: 281
Location: Gdansk - Poland

excluding users influence ?

_________________
data recovery Poland

Top

dmarques

Post subject: Re: Samsung - common PCB problem

Posted: September 3rd, 2013, 6:03

Joined: November 6th, 2006, 6:58
Posts: 1752

I think that's very hard to say, because that might be due to problems on the electric installations of buildings, on the computers PSU's and might not be even a big issue with the drives itself.
That's why I think that's really hard to say.

Top

fzabkar

Post subject: Re: Samsung - common PCB problem

Posted: September 3rd, 2013, 7:46

Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia

A quick check of the onboard power supplies should take 2 minutes. That should tell you whether the motor controller is at least partially functional.

_________________
A backup a day keeps DR away.

Top

laptokowiec

Post subject: Re: Samsung - common PCB problem

Posted: September 5th, 2013, 4:18

Joined: October 24th, 2009, 8:16
Posts: 281
Location: Gdansk - Poland

In all cases only pcb is damaged

_________________
data recovery Poland

Top

longlife

Post subject: Re: Samsung - common PCB problem

Posted: September 19th, 2013, 23:00

Joined: December 9th, 2010, 2:59
Posts: 241
Location: kolkata

fzabkar wrote:

A quick check of the onboard power supplies should take 2 minutes. That should tell you whether the motor controller is at least partially functional.

Boss, FZABKAR

would u please please & please explain how to do it.

If you explain thousands of uses will be benefited.

advanced thanx.

Top

BlackST

Post subject: Re: Samsung - common PCB problem

Posted: September 20th, 2013, 2:21

Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY

laptokowiec wrote:

I receive many Samsung drives with dead pcb.
Usually transil diodes or 0 ohm resistors are ok.
Whats their Achilles heel from your experience ?

70% user 30% seems fatality.
P.s. In thousands seen for recovery / refurb no more than 10 had TVS problems.

Top

fzabkar

Post subject: Re: Samsung - common PCB problem

Posted: September 20th, 2013, 2:55

Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia

Tutorial - how to locate the basic test points of an unfamiliar HDD PCB:
http://www.users.on.net/~fzabkar/HDD/Tu ... 0411N.html

HDD TVS diode FAQ:
http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

Tutorial - Linear and Switchmode Regulators used in HDDs:
http://malthus.zapto.org/viewtopic.php?f=59&t=231&p=597

@longlife, if you have a specific PCB, I can show you what and where to measure.

_________________
A backup a day keeps DR away.

Top

Page 1 of 1

[ 9 posts ]

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: Google [Bot] and 54 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