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buster80
 Post subject: Dead Samsung HD400LD no power
PostPosted: March 25th, 2010, 15:42 
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Joined: January 23rd, 2010, 16:20
Posts: 248
Location: Data Recovery in Glasgow, Scotland
Any ideas, any chance this is TVS? or something more sinister

just died apparently

thanks

andy


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buster80
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 25th, 2010, 15:42 
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Joined: January 23rd, 2010, 16:20
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Location: Data Recovery in Glasgow, Scotland
no visible damage

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HDD Spaz
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 25th, 2010, 15:53 
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Joined: October 13th, 2008, 7:29
Posts: 1493
got a multimeter?
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pcimage
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 25th, 2010, 16:48 
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Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK
If you have, then check the two large-ish black rectangular components top right.

They should NOT be short (simplest method use the continuity meter mode on the MM).

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networkpc3000
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 25th, 2010, 21:11 
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Joined: December 16th, 2007, 10:26
Posts: 1151
may be no the TVS problem. 8)

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buster80
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 26th, 2010, 11:38 
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Joined: January 23rd, 2010, 16:20
Posts: 248
Location: Data Recovery in Glasgow, Scotland
Not got a multimeter guys, gonna get one and try it.
thanks v much

andy

networkpc3000, i got your pm, pm'd ya back :)

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buster80
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 26th, 2010, 11:45 
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Joined: January 23rd, 2010, 16:20
Posts: 248
Location: Data Recovery in Glasgow, Scotland
going to get one over the weekend, what am i looking for again pc image ?

infact whats your real name, forum talk can be so silly when you call people their forum name :D

thanks

andy

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fzabkar
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 26th, 2010, 16:24 
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Joined: September 8th, 2009, 18:21
Posts: 16956
Location: Australia
This thread may help:
http://www.mikrocontroller.net/topic/58330

One of the two TVS diodes is circled here:
http://www.mikrocontroller.net/attachme ... 400LD_.jpg

There appear to be fuses in series with each diode. If a diode is shorted, then remove it. If a fuse is open, then replace with a 2A picofuse, or bridge it with a wire.

Be sure that your PSU is OK, as you will no longer have any protection after doing the above.
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buster80
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 26th, 2010, 16:31 
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Joined: January 23rd, 2010, 16:20
Posts: 248
Location: Data Recovery in Glasgow, Scotland
That's really helpfull. Thanks :)

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poehere
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 26th, 2010, 21:18 
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Joined: February 27th, 2009, 3:26
Posts: 1721
Location: French Polynesia Tahiti
buster80 wrote:
going to get one over the weekend, what am i looking for again pc image ?

infact whats your real name, forum talk can be so silly when you call people their forum name :D

thanks

andy


His name is Sean and he is from PC Image

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Alexii
 Post subject: Re: Dead Samsung HD400LD no power
PostPosted: March 29th, 2010, 9:56 
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Joined: October 28th, 2009, 14:35
Posts: 775
Location: Toronto
poehere wrote:
buster80 wrote:
going to get one over the weekend, what am i looking for again pc image ?

infact whats your real name, forum talk can be so silly when you call people their forum name :D

thanks

andy


His name is Sean and he is from PC Image


Indeed it is =))) Ty Poehere.
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