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icer13
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Joined: 22 Aug 2010
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fzabkar
Deadharddrive regular +3
Joined: 02 Apr 2010
Posts: 210
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 Posted: Thu Sep 09, 2010 12:59 am Post subject: Re: Wanted: PCB Hitachi HDT721010SLA360 |
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If you can describe the failure symptom, one of us may be able to help you repair your board. Many times the problem is only a shorted diode, in which case it can simply be removed.
In your case I would test the diodes near the SATA power connector. If you need more help, feel free to ask.
Good luck. |
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icer13
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| Posted: Thu Sep 09, 2010 9:30 am Post subject: Re: Wanted: PCB Hitachi HDT721010SLA360 |
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| fzabkar wrote: | If you can describe the failure symptom, one of us may be able to help you repair your board. Many times the problem is only a shorted diode, in which case it can simply be removed.
In your case I would test the diodes near the SATA power connector. If you need more help, feel free to ask.
Good luck. |
Thanks for your reply.
This drive was spoiled by external power supply for SATA adaptor to USB. (here the pic: http://www.compusb.com/lib/compusb/power-supply-for-sata-adapter-to-usb.jpg)
No matter how I try with several PSU, the drive still doesn't be energized and work.
And I don't familiar with repairing a PCB, could someone give me some guides please?
Any help would be appreciated. |
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fzabkar
Deadharddrive regular +3
Joined: 02 Apr 2010
Posts: 210
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| Posted: Thu Sep 09, 2010 2:35 pm Post subject: Re: Wanted: PCB Hitachi HDT721010SLA360 |
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Use a multimeter on the 200 ohms range to test the components in the photo clip:
http://www.users.on.net/~fzabkar/HDD/HDT721010SLA360_TVS.jpg
If you don't have a multimeter, a digital one should only cost you US$10.
I suspect that your 5V TVS diode is shorted.
Once you have found the faulty diode, you can snip it out with flush cutters. If there is no other damage, the drive will work without it, but it will no longer have overvoltage protection on the affected supply rail, so be absolutely sure your power supply is OK. |
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Eric Lee
Deadharddrive regular +4
Joined: 26 Apr 2009
Posts: 308
Location: China
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| Posted: Fri Sep 10, 2010 2:01 pm Post subject: |
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Hi, I have this kinds of working PCB, pls contact me after you confirm that it is a PCB problem. Thanks.
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HK MingDi electronics Co., Ltd. http://www.hkmingdi.com/enindex.asp
MSN/E-mail：eric_lee8341@hotmail.com
Specialize in HDD PCB!!! Real in stock!!
Skype：eric.lee1984 |
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dadafu
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Joined: 18 Oct 2010
Posts: 7
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| Posted: Tue Oct 19, 2010 12:10 pm Post subject: |
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Hello,
I have the same HDD hdt721010sla360 but MLC is : ba3013
The HDD is not detected in Bios and on others PC, do you know if i can repair the PCB ? Or do you have the same PCB for me ?
Thank's |
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sunnydreamspace
Deadharddrive regular +5
Joined: 04 Jan 2009
Posts: 540
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| Posted: Tue Oct 19, 2010 9:40 pm Post subject: |
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hi,
i have this kind of PCB in stock. does your PCB same as above image? does your drive spin up? any strange noise when power up?
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provide Hard drive PCB,entire drive/ Data Recovery service.... big HDD resource. talk to me immediately! sunnydreamspace@hotmail.com
skype: sunnydreamspace |
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dadafu
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Joined: 18 Oct 2010
Posts: 7
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| Posted: Tue Oct 19, 2010 10:44 pm Post subject: |
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hi,
The drive spin up correctly, no strange noise.
The PCB is not exactly the same (a little smaller at the bottom)
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sunnydreamspace
Deadharddrive regular +5
Joined: 04 Jan 2009
Posts: 540
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| Posted: Thu Oct 21, 2010 11:17 pm Post subject: |
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hi,
i have it in stock. but i have a question. why you want to change PCB? did you find out some damaged part on it or something happen regard with PCB? as if i think right. i don't think it's PCB problem. may be you got FW even head problem that replace PCB may nothing help for you.
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dadafu
Active contributor
Joined: 18 Oct 2010
Posts: 7
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| Posted: Thu Oct 21, 2010 11:59 pm Post subject: |
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I see nothing damaged on PCB but my friend touch it with a finger when he unplugged it (after this, the drive was no longer detected in my pc) so i think it's a pcb problem ? or not ?
The problem appeared after unplug, that's sure
I want to recover files on it (about 900Gb)  |
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dadafu
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Joined: 18 Oct 2010
Posts: 7
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| Posted: Sun Oct 24, 2010 11:49 pm Post subject: |
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| How much is a PCB ? thank's |
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sunnydreamspace
Deadharddrive regular +5
Joined: 04 Jan 2009
Posts: 540
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| Posted: Mon Oct 25, 2010 12:35 am Post subject: |
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| dadafu wrote: | I see nothing damaged on PCB but my friend touch it with a finger when he unplugged it (after this, the drive was no longer detected in my pc) so i think it's a pcb problem ? or not ?
The problem appeared after unplug, that's sure
I want to recover files on it (about 900Gb) |
with this info i can't sure tell you it's PCB problem or no. i need diagnostic for confirm. please feel free to contact me by email or MSN for get quote. thanks.
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provide Hard drive PCB,entire drive/ Data Recovery service.... big HDD resource. talk to me immediately! sunnydreamspace@hotmail.com
skype: sunnydreamspace |
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dadafu
Active contributor
Joined: 18 Oct 2010
Posts: 7
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| Posted: Mon Oct 25, 2010 3:21 pm Post subject: |
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I have a friend who has the same drive, I'll see if it is the same PCB and i'll test it on my drive.
I'll keep you posted.
Thank's |
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sunnydreamspace
Deadharddrive regular +5
Joined: 04 Jan 2009
Posts: 540
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| Posted: Mon Oct 25, 2010 10:47 pm Post subject: |
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| dadafu wrote: | I have a friend who has the same drive, I'll see if it is the same PCB and i'll test it on my drive.
I'll keep you posted.
Thank's |
ok. and you should swap the 8 pins chip(U5) from original PCB to good PCB.
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provide Hard drive PCB,entire drive/ Data Recovery service.... big HDD resource. talk to me immediately! sunnydreamspace@hotmail.com
skype: sunnydreamspace |
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dadafu
Active contributor
Joined: 18 Oct 2010
Posts: 7
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| Posted: Thu Oct 28, 2010 9:08 pm Post subject: |
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omg really ? why ? what is in this chip?
If i buy a new one, what i need to do ?
thank's |
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