No power

[Firdous]

Hi

WD40NDZW-11MR8S1 drive USB not powering UP , Convert to sata not use because encryption is new. I have attached not powering board, can someone help me to find out the damage components on the attached board ?

[Data Recovery Guru]

Those are cheap. Similar model is available at the store.

Can buy and compare new vs old PCB component test.

On Sun, Jan 3, 2021, 4:10 AM Firdous <firdo...@gmail.com> wrote:

Hi

WD40NDZW-11MR8S1 drive USB not powering UP , Convert to sata not use because encryption is new. I have attached not powering board, can someone help me to find out the damage components on the attached board ?

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[Desert Data Recovery]

I have had a few of these drives where the USB connector has come loose. Plug in just the PCB and wiggle the connector and see if the light comes on. At least you will know if it's the connector or not. I have done one CPU swap with a totally failed board. But not recommended unless it's the last option. 

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[Chris Berge]

Tim, What chips did you have to swap on this model to make that work?

Chris Berge - Owner

Neuralearth Technology Services

503-683-3801

7240 NE Sandy Blvd

Portland, OR 97213

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[Desert Data Recovery]

CPU/MCU. People refer to it differently. The one protected by the red pad. 

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[pbzcbf...@gmail.com]

If it is a power problem, I would check the TVS diode and "000" resistor.

If they are OK, then I would measure the voltages at the various test points.

If it is a USB connector problem, try USB 2.0. That uses different signal pins than 3.0.

http://www.users.on.net/~fzabkar/HDD/WD40NDZW_TVS_diode_fuse.jpg

http://www.users.on.net/~fzabkar/HDD/WD40NDZW_bridge_Vcore.jpg

http://www.users.on.net/~fzabkar/HDD/WD40NDZW_regs.jpg

[Mohamed Firdous]

Which one is tvs diods ? Sometimes the light was trying to blink, but i check usb connector seems ok. I have many usb board similar but encryption chip numbers are different. I'm little new to electronic fault finding so please mark which component need to test.

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[pbzcbf...@gmail.com]

Please look again.

[Mohamed Firdous]

Ok, Thank you, I didn't notice.

On Mon, Jan 4, 2021 at 7:31 AM pbzcbf...@gmail.com <pbzcbf...@gmail.com> wrote:

Please look again.

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[t...@desertdatarecovery.com]

Chris

 

Now I am back in the office, here are some pics of the MCU transfer.

But like I say, only to be used as last resort.

 

Tim

 

Tim Homer - Lead Engineer

Desert Data Recovery

t...@desertdatarecovery.com

www.desertdatarecovery.com

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[Mohamed Firdous]

Hi

Thanks to all your valuable info , the zero ohm resistor was partially removed so I soldered back and the drive detected all data recovered. special thanks for @pbzcbf...

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[VietGamer]

Hi, can you send me back these pictures??? Many thanks

[pbzcbf...@gmail.com]

https://web.archive.org/web/20210614193827/http://www.users.on.net/~fzabkar/HDD/WD40NDZW_TVS_diode_fuse.jpg

https://web.archive.org/web/20230730202427/http://www.users.on.net/~fzabkar/HDD/WD40NDZW_bridge_Vcore.jpg

https://web.archive.org/web/20220113231223/http://www.users.on.net/~fzabkar/HDD/WD40NDZW_regs.jpg

[VietGamer]

Thank you so much

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