Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
November 21st, 2008, 9:35
Hello people!
Sorry but my cam and english is so bad.. =)
I'm from Brazil.
This HD have a bad component:

1R2
I'm traying to found this component but i dont know his name.
Please somebody can help me?
November 21st, 2008, 10:04
Inductor
November 21st, 2008, 10:13
Thanx Guy!!!
for now, where in brazil i find this... =(
November 21st, 2008, 10:43
Are you sure it's bad? If a small piece is just broken off, it's usually still fine. Shorted inductors are difficult to diagnose. Unless if it's open?
What does it measure on a multimeter?
November 21st, 2008, 11:25
he was acting normal, a little slow, until he's stopped again.
and the only component that I thought was abnormal is that.
I have a multimeter but I dont know how to use in this case, can you help me?
I tried to put him on a computer but before entering in the windows he makes some noises and self shutting down.
it seems that happens in time that he will do some reading, because when i turn on the computer it is recognized and does not make any noise.
lol google tradutor is fine =)
November 21st, 2008, 11:48
that gone with a bang
November 21st, 2008, 16:53
You can measure the coil by using the Ohms setting on the meter (The symbol looks like an upside down U). It should read close to .000, maybe as high as .10 If it reads 10 or more, it's almost certainly bad. If it gets hot while the drive is on, it may be shorted, or there may be other bad components nearby. Otherwise, it's likely good, despite looking bad. The coil has a brittle ferrite casing, and it breaks easily. This is usually damaged by improper handling or installation. 99% of the time, it still works fine.
Honestly, if there is any bad component on the PCB, you will be better off replacing the entire PCB. Troubleshooting a PCB is usually difficult, and can't be done by eye (Unless if the damage is obvious). Replacing the PCB isn't easy, as you have to switch the ROM, but it will be much easier than someone who doesn't know Electronics to troubleshoot a board.
If there is actually any important data on this drive, you should seriously send it to a professional.
November 21st, 2008, 16:56
rchadwick wrote:You can measure the coil by using the Ohms setting on the meter (The symbol looks like an upside down U). It should read close to .000, maybe as high as .10 If it reads 10 or more, it's almost certainly bad. If it gets hot while the drive is on, it may be shorted, or there may be other bad components nearby. Otherwise, it's likely good, despite looking bad. The coil has a brittle ferrite casing, and it breaks easily. This is usually damaged by improper handling or installation. 99% of the time, it still works fine.
Honestly, if there is any bad component on the PCB, you will be better off replacing the entire PCB. Troubleshooting a PCB is usually difficult, and can't be done by eye (Unless if the damage is obvious). Replacing the PCB isn't easy, as you have to switch the ROM, but it will be much easier than someone who doesn't know Electronics to troubleshoot a board.
If there is actually any important data on this drive, you should seriously send it to a professional.
hummmm, ok's, i'll make tests and reply after..
Thanx a lot for the explanation.
November 21st, 2008, 17:07
Also, measure WITHOUT power connected to the drive. Measure with no power. Measure without power. I say this multiple times to make sure Google Translator isn't clear.
November 22nd, 2008, 5:04
The drive has OTHER damage beyond the inductor .
November 22nd, 2008, 5:17
Most definitely, but he won't believe it until he finds out for himself
November 22nd, 2008, 16:27
rchadwick wrote:Also, measure WITHOUT power connected to the drive. Measure with no power. Measure without power. I say this multiple times to make sure Google Translator isn't clear.
hahaha, ok. I understand by myself.. but at the time of writing I cant do very well..
Last edited by
GuiCPD on November 22nd, 2008, 16:31, edited 1 time in total.
November 22nd, 2008, 16:30
BlackST wrote:The drive has OTHER damage beyond the inductor .
No, he just.
November 22nd, 2008, 16:35
rchadwick wrote:Most definitely, but he won't believe it until he finds out for himself

I believe, but for now, i cant find any PCB for this seagate..
Brazil is champion in Samsungs HDDs.. =(
November 23rd, 2008, 2:50
Does anyone in Brazil do Data Recovery?
Bom Dia!
November 24th, 2008, 6:47
rchadwick wrote:Does anyone in Brazil do Data Recovery?
Bom Dia!
morning!! =)
Yes, there are some locals, especialists.
However , i have to sent because is not coming here..
November 24th, 2008, 8:43
News!!
I have meansured de "poor" Inductor and got 0,00 in reading. Other components like resistors and other inductors also gave 0,00. I used 200u scale.
November 24th, 2008, 9:27
November 24th, 2008, 14:07
Well, it's likely still good. First, the best way to test an inductor, or any part for that matter, is to test out of circuit. Second, it may only be 3uH or so. On a 200uH scale, it might be within the meter's tolerance to read 0.
If it was my drive, I'd assume the inductor is fine. They rarely go bad, and when they do, it's usually because an associated transistor shorted. If it looks burned, it likely means something else is bad. If I really thought it was bad, I'd measure the output voltage of the associated parts (The inductor is likely part of a power supply circuit). I successfully worked for years in a Lambda factory troubleshooting power supplies without ever using an inductance meter. Bad inductors are often best found by indirect symptoms, not by direct measurement.
You still haven't told us... What makes you think this part is bad? Is it burned? Physically cracked? Did you have a dream?
November 24th, 2008, 18:54
This drive has other problems... (and with this , they are 2) can't load firmware when starting then it shuts down. And the inductor is fine. The inductor had the top broken, maybe, but it works fine anyway (unless the central core is broken too).
Why not connect terminal then post log to confirm what is REALLY the problem ?
Powered by phpBB © phpBB Group.