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lasek
 Post subject: Samsung HD103SI restarting computer
PostPosted: November 6th, 2016, 11:18 
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Joined: February 26th, 2016, 5:02
Posts: 81
Location: Poland
Hi,

This time I have disk Samsung HD103SI. After connecting power from computer power supplier to disk computer is restaring. Also connecting only PCB still computer restaring.
At the begging I check diodes, so I replace one of them. But after that still is the same problem.
Could you help me with diagnose this PCB? I attached photo my PCB.

Marcin


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fzabkar
 Post subject: Re: Samsung HD103SI restarting computer
PostPosted: November 6th, 2016, 17:09 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
@lasek, "restarting" suggests that the computer is in some kind of boot loop. A shorted TVS diode would cause the PSU to shut down. Could you clarify what you mean?

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lasek
 Post subject: Re: Samsung HD103SI restarting computer
PostPosted: November 7th, 2016, 8:45 
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Joined: February 26th, 2016, 5:02
Posts: 81
Location: Poland
OK. I have working computer with windows. So after when I connecting power to disk from power supplier this computer then computer shut down in the moment. This problem only with this one disk.
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fzabkar
 Post subject: Re: Samsung HD103SI restarting computer
PostPosted: November 7th, 2016, 16:05 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
lasek wrote:
So after when I connecting power to disk from power supplier this computer then computer shut down in the moment.

Then you need to follow Spildit's advice.

http://www.users.on.net/~fzabkar/HDD/HD103SJ_TVS_2.jpg

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lasek
 Post subject: Re: Samsung HD103SI restarting computer
PostPosted: November 8th, 2016, 16:42 
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Joined: February 26th, 2016, 5:02
Posts: 81
Location: Poland
Once again thank you for your help. I replaced both diodes and now pcb and disk works.

Marcin
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