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

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Switch to mobile style


Post new topic Reply to topic  Page 1 of 1
  [ 13 posts ] 
  Previous topic | Next topic 
Author Message
Russwinters
 Post subject: Seagate CF drives
PostPosted: October 10th, 2008, 13:32 
Offline
User avatar

Joined: July 16th, 2008, 17:52
Posts: 489
Location: Long Beach, California
Anyone have any experience with these? Common problems, success rate, etc. I just received one, and it doesn't seem to be drawing any power on my oscilloscope, (~3-4ma on the 5v). I can't detect and noise or vibrations coming from the drive; and obviously it does not identify, or initialize. It looks like it may be PCB.


Model: ST650211CF
P/N: 9AF212-235
FW: 3.04
Date: 05341
Top
 Profile  
 
mediaman
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 13:48 
Offline

Joined: September 11th, 2007, 13:35
Posts: 249
no noise at all? first check the power input circuits and protections
Top
 Profile  
 
N.C.
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 14:20 
Offline
User avatar

Joined: March 28th, 2008, 7:52
Posts: 1466
Location: Europe, Hungary
Usually, the protection is before anything.

If fuse is blown, the unit can't get 3-4 mA.

This is only opinion. :)

Regards,
Janos
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 15:14 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
Russwinters wrote:
Anyone have any experience with these? Common problems, success rate, etc. I just received one, and it doesn't seem to be drawing any power on my oscilloscope, (~3-4ma on the 5v). I can't detect and noise or vibrations coming from the drive; and obviously it does not identify, or initialize. It looks like it may be PCB.


Model: ST650211CF
P/N: 9AF212-235
FW: 3.04
Date: 05341


Pardon Me ,
How Are You Passing current Via a Scope ?

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
Russwinters
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 15:49 
Offline
User avatar

Joined: July 16th, 2008, 17:52
Posts: 489
Location: Long Beach, California
I have a beta unit of Atola insight; which has a built in oscilloscope
Top
 Profile  
 
N.C.
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 15:51 
Offline
User avatar

Joined: March 28th, 2008, 7:52
Posts: 1466
Location: Europe, Hungary
Anyway, it is done with measuring only one good value resistor, connected serially with the unit. ;)

Janos
Top
 Profile  
 
BlackST
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 16:00 
Offline

Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY
Atola's "oscilloscope" is not an oscilloscope, is a graph of a current monitor readout. For oscilloscope I mean , just to say, a Philips PM3217 or a Tektronix or HP...
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 16:20 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
N.C. wrote:
Anyway, it is done with measuring only one good value resistor, connected serially with the unit. ;)

Janos


Pardon Me ,
I Ask the Same question again How ?

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
BlackST
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 16:24 
Offline

Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY
Let the current flow through a fixed value resistor and then measure the voltage (Ohm's law)
Top
 Profile  
 
mediaman
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 16:35 
Offline

Joined: September 11th, 2007, 13:35
Posts: 249
i think the 3 to 4 mA on the atola is parasitic noise. check the circuit protections (diodes, ferrites, TVS) just to be sure
Top
 Profile  
 
N.C.
 Post subject: Re: Seagate CF drives
PostPosted: October 10th, 2008, 17:16 
Offline
User avatar

Joined: March 28th, 2008, 7:52
Posts: 1466
Location: Europe, Hungary
BlackST wrote:
Let the current flow through a fixed value resistor and then measure the voltage (Ohm's law)



Amarbir, this is the correct answer. :)

Good scope can measure from some mV lost in the resistor, so you can use a very little value, or a simple long wire, as Dmitry sad. :)

Janos
Top
 Profile  
 
Amarbir[CDR-Labs]
 Post subject: Re: Seagate CF drives
PostPosted: October 11th, 2008, 14:49 
Offline
User avatar

Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
N.C. wrote:
BlackST wrote:
Let the current flow through a fixed value resistor and then measure the voltage (Ohm's law)



Amarbir, this is the correct answer. :)

Good scope can measure from some mV lost in the resistor, so you can use a very little value, or a simple long wire, as Dmitry sad. :)

Janos


Janos ,
Measure Milli volts But Current ?

_________________
Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com
Top
 Profile  
 
N.C.
 Post subject: Re: Seagate CF drives
PostPosted: October 11th, 2008, 15:35 
Offline
User avatar

Joined: March 28th, 2008, 7:52
Posts: 1466
Location: Europe, Hungary
Amarbir wrote:
N.C. wrote:
BlackST wrote:
Let the current flow through a fixed value resistor and then measure the voltage (Ohm's law)



Amarbir, this is the correct answer. :)

Good scope can measure from some mV lost in the resistor, so you can use a very little value, or a simple long wire, as Dmitry sad. :)

Janos


Janos ,
Measure Milli volts But Current ?


The scope can measure mV, of course.
But you can measure Current with it, if u use one resistor as well. R = U/I ( if i remember right. :lol: )

Janos
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 13 posts ] 

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 44 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