Samsung hd103sj

[cesar509]

Hello!

My samsung 1TB hdd has stopped spinning. I think its the pcb. I dont see/smell any burnt components. I have a second HDD of the same model and firmware but bought 6 months later. I checked the pcb and there is a 1 chip diff. One pcb is by Foxconn and the other FCI.

I have look everywhere and i can't find a pcb for it. Anyone who knows a site/store that sells hdd pcbs?

 

[hddlab]

Hi...I'm having the very same issue with my Samsung drive, it's the same hard dive model and the same PCB. I as hoping someone would have some additional advice. My drive was doing the same as cesar509's, was not spinning up or anything. I followed everything listed in this forum, I removed both the TVS's by the power and removed the 0 ohm resistor and soldered the gap where the 0 ohm resistor was.

Now, the drive will start to spin up and run for about 10-15 seconds, then shuts down.

Any ideas on what I could try next? Just trying to save the data from the drive.

Thanks!
Dale

Your HDD have some error in service area and you must pay at least $5000 for proper tool. Don't try this at home. Go for DR in your local.

 

[florpanama]

Hi Cesar509,

There is something Funny.

I've the same problem as you.

I have 2 samsung F3 HD103SJ.

An old one which doesn't work anymore. In this one, I want the retrieve data

And I've another Samsung wich work fine.

I tried to exchange the pcb each other. But tis doesn't work. The two drives are not compatible.

The thing funny is that for me the pcb which does not work has this serial:

BF41-00278A 00

And the PCB which works well has this serial:

BF41-00303A 00

Are you interrested to make an exchange of pcb ?

hello i need a pcb BF41-00303A 00 can you sell it to me ?
thank's

 

[paulolesgaz]

Sorry florpanama, but since I've no solution for my HDD BF41-00278A 00, I keep my hdd BF41-00303A 00.

I've just acquire a pcb BF41-00278A 00 in second hand. But whith this new pcb, the motor of my hard drive does not start. Here is the mesure I have made:

Is there a solution to make this pcb work ?

 

[fzabkar]

@paulolesgaz, your second hand PCB appears faulty. Without a Vcore voltage the MCU will be brain dead. I would measure the resistance of the coil, and I would also measure its resistance to ground.

The absence of the -5V supply is OK. In some designs the MCU needs to enable this supply by sending an appropriate command to the motor controller, so if the MCU is down, then the -5V will be missing.

 

[paulolesgaz]

Thanks fzabkar for your help.

Sorry, I don't understand well what I would measure. I did not represente which component is the coil on the pcb.

If this pcb is really faulty, there is no way to repair it ?

 

[fzabkar]

The coil is the component marked "4R7" in the bottom right corner of the following photo:
http://i54.tinypic.com/6zy1hk.jpg

If the resistance between the Vcore test point and ground is zero ohms, then this could be because the MCU is shorted, in which case a DIY repair would be impractical.

Otherwise, if the coil is open circuit, then you might be able to replace it.

 

[astromarlar]

Hi,

I know this is an old thread, however ...

I have the same drive. It clicks around 10 times with about 2 clicks/second. Then it spins down.

I measured the voltage across the two diodes just next to the power connector. They showed +-12V and +-5V depending on the polarity.

I guess the diodes are dead then?

Can I replace them with any diode?

Thanks in advance 🙂

Martin

 

[fzabkar]

@astromarlar, there is nothing wrong with the TVS diodes. The problem sounds like an internal fault.

 

[astromarlar]

thanks, fzabkar. Do you have any advice?

I have read about the freezer trick, is this something I should consider?

Also: If I gently shake the drive while connected, I can make the clicking noise go away for some time and it takes longer before it spins down. Does that tell something?

 

[fzabkar]

The only thing I would suggest is to obtain a diagnostic report from the drive's serial terminal port.

See http://www.alexsoft.org/viewtopic.php?f=116&t=189

 

[cesar509]

Hi Paulolesgaz,

Sorry i never went back to this forum to check updates after my initial posts. I still have the HDDs that i posted but they are back in Manila. I'm now in Singapore.

were you able to fix your HDD issues?

cesar509

Hi Cesar509,

There is something Funny.

I've the same problem as you.

I have 2 samsung F3 HD103SJ.

An old one which doesn't work anymore. In this one, I want the retrieve data

And I've another Samsung wich work fine.

I tried to exchange the pcb each other. But tis doesn't work. The two drives are not compatible.

The thing funny is that for me the pcb which does not work has this serial:

BF41-00278A 00

And the PCB which works well has this serial:

BF41-00303A 00

Are you interrested to make an exchange of pcb ?

 

[dawez]

Did a PCB swap with two 2009.09 model and worked without issue [no need to replace the bios chip]. Replaced PCB disk recognized and fully usable.

I have another disk from the 2011.01 which I assume had a PCB failure as well. The disk does not power up when connected. I tried a PCB swap [with another 2001.01 model], motor spins up but did not hear head movements. Drive not recognized in bios so will try with a BIOS chip exchange.

Strangely enough the TVS diodes are OK and also the resistor. I followed also the measurements that fzabkar suggest and on one coil there is zero.

Is there a way to check the BIG chips ? maybe one of that is gone and can be replaced.

 

[hassan_05]

I have Samsung HD 252 HJ the problem is spins is fine voltage are on coils 2.5 & 1.2 respectively but there is no sign of HDD in USB mode when I connect it directly to Mother board PC the PC gives beep & don't start if any one has any suggestion plz reply

 

[hassan_05]

what are the voltage on 1R2 coil?