Samsung HD753LJ Repair Possible?
May 2nd, 2010, 21:46
Hey, I was pointed here by someone who said that you guys were knowledgable about hard drives and were able to help him with a similiar problem.
the stats:
P/N: 461711FPA03058 F1^3D
Model: HD753LJ (750GB/7200rpm/32M)
HDD P/N: HD753LJ
LBA 1,465,149,168 750.00GB F1_3D
(Korean Letters) SEC-HD753LJ(B)
(More Korean Letters) 2007.10
the story:
I had this drive hooked up to my computer, and a power surge or power spike hit my computer. It fried my power strip, power supply, and it fried this drive. Now if this drive is hooked to even a good power supply, the computer won't power on (indicating some sort of shorting is going on). I examined the PCB board and noticed that this one black thing was damaged. In the included picture, it is the topmost chip thing. Sorry for the bad quality my camera doesn't do closeups very well. As that is the only damage I see, would I be able to replace that? I can solder decently well, and I know someone who can solder very well if it requires a high level of skill. Or would i be able to replace the whole PCB? I have heard that this is not as easy to do anymore since they update the pcb and drives. I would only do this to get the data off the drive so the solution does not have to be permanent.
the picture: (linked for hugeness)
http://img98.imageshack.us/img98/9879/p5020123.jpg
the stats:
P/N: 461711FPA03058 F1^3D
Model: HD753LJ (750GB/7200rpm/32M)
HDD P/N: HD753LJ
LBA 1,465,149,168 750.00GB F1_3D
(Korean Letters) SEC-HD753LJ(B)
(More Korean Letters) 2007.10
the story:
I had this drive hooked up to my computer, and a power surge or power spike hit my computer. It fried my power strip, power supply, and it fried this drive. Now if this drive is hooked to even a good power supply, the computer won't power on (indicating some sort of shorting is going on). I examined the PCB board and noticed that this one black thing was damaged. In the included picture, it is the topmost chip thing. Sorry for the bad quality my camera doesn't do closeups very well. As that is the only damage I see, would I be able to replace that? I can solder decently well, and I know someone who can solder very well if it requires a high level of skill. Or would i be able to replace the whole PCB? I have heard that this is not as easy to do anymore since they update the pcb and drives. I would only do this to get the data off the drive so the solution does not have to be permanent.
the picture: (linked for hugeness)
http://img98.imageshack.us/img98/9879/p5020123.jpg
Re: Samsung HD753LJ Repair Possible?
May 2nd, 2010, 23:13
Search for TVS on this forum.
Re: Samsung HD753LJ Repair Possible?
May 2nd, 2010, 23:44
searching nets me, so unless i totally fail at searching ill do
all this stuff seems doable, especially since i have a friend who knows this kind of stuff. A sincere thank you, you have been very helpful!
fzabkar wrote:Rather than replace the board, locate the 12V TVS diode on the original board. It will most likely be shorted.
Does your board look like this one?
http://img220.imageshack.us/img220/5310/dsc2495yt8.jpg
The photo shows a burnt 5V TVS diode near the SATA power connector. Your PCB will have a shorted diode to the right of it, near the edge of the board.
If you can trust your PSU, then remove the 12V diode with flush cutters. Your drive will work OK without it, but it will no longer have overvoltage protection on the +12V supply.
For continued protection, you can replace the diode with an SMBJ12A from Farnell, Mouser, Digikey.
fzabkar wrote:Check the two TVS diodes near the power connector for short circuits. Use a multimeter on the 200 ohms range. Also check the zero ohm resistor. It may have fused open.
The faulty diode can be removed, and the resistor can be replaced by a short length of wire, or a 2A picofuse. Just be sure that your PSU is OK, as you will no longer have any protection on the affected supply rail.
For continued protection, you can replace the 12V and 5V TVS diodes with an SMBJ12A and SMAJ5.0A, respectively, from Farnell, Mouser, Digikey.
Good luck.
all this stuff seems doable, especially since i have a friend who knows this kind of stuff. A sincere thank you, you have been very helpful!
Re: Samsung HD753LJ Repair Possible?
May 3rd, 2010, 9:34
It's not guaranteed that it will be the only failure. If so, DIY is over.
Re: Samsung HD753LJ Repair Possible?
May 3rd, 2010, 13:21
BlackST wrote:It's not guaranteed that it will be the only failure. If so, DIY is over.
well, I guess I better hope for the best, but I might as well try
Thanks Again,
UltiamteDogg
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