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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 3rd, 2018, 11:08 
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Joined: March 30th, 2016, 12:29
Posts: 106
Location: Germany
Can you please show me a picture of the hdd label?


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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 6th, 2018, 20:53 
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Joined: March 26th, 2018, 16:12
Posts: 15
Location: moab, utah
Updating this thread on the latest.

I ordered the same model My Book Duo, and finally got it (took awhile).

I reconfigured it for Mirror and put in the drives, and I'm able to see the files/folders.

It seems since there was no password set, this controller decrypts the contents from default settings.

Whew!


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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 7th, 2018, 8:59 
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Joined: March 26th, 2018, 16:12
Posts: 15
Location: moab, utah
would like to thank @fzabkar for your help. much appreciated.

I probably will never know what failed on the original PCB, but I'd sure like to.

WD may get a warranty replacement for this, but I have to send back the bad one.


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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 7th, 2018, 15:46 
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Joined: September 8th, 2009, 18:21
Posts: 10355
Location: Australia
@metafizx, does your working My Book Duo spin up its HDDs if its USB cable is not connected, or will it only do so when it detects a USB host?

If you connect only the working PCB to the USB port, how does the OS see it?

You could use UVCView or USBDeview:

http://www.nirsoft.net/utils/usb_devices_view.html
http://download.microsoft.com/download/e/b/a/eba1050f-a31d-436b-9281-92cdfeae4b45/UVCView.x64.exe
http://www.users.on.net/~fzabkar/USB_IDs/UVCView.x86.exe

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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 9th, 2018, 11:15 
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Joined: March 26th, 2018, 16:12
Posts: 15
Location: moab, utah
yes that is correct. The unit only powers on when the USB is connected.

I'll try it with just the PCB


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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 9th, 2018, 11:34 
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Joined: March 26th, 2018, 16:12
Posts: 15
Location: moab, utah
working PCB with no drives is shown connected in Windows.


Attachments:
usbdevice.jpg
usbdevice.jpg [ 84.31 KiB | Viewed 742 times ]
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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 9th, 2018, 15:19 
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Joined: September 8th, 2009, 18:21
Posts: 10355
Location: Australia
Your results would suggest that the fault is with the JMicron or Asmedia chips, or the USB3 connection. Can you communicate with the PCB via a USB 2.0 cable or USB 2.0 port? USB 2.0 uses different signal wires.

Your next test would involve shorting the HOLD pin to ground (on the bad PCB), as explained previously.

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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 9th, 2018, 23:08 
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Joined: March 26th, 2018, 16:12
Posts: 15
Location: moab, utah
fyi...for that last test, it was plugged into a USB 2.0 port.


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 Post subject: Re: WD My Book Duo controller failure
PostPosted: April 11th, 2018, 17:07 
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Joined: September 8th, 2009, 18:21
Posts: 10355
Location: Australia
To eliminate the USB hub as a potential culprit, one could possibly remove the choke at L16 and then connect a USB 2.0 cable to the bridge-side pins of L16. I believe this would enable direct access to the bridge via a USB 2.0 port.


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USB_20_direct_connect.jpg
USB_20_direct_connect.jpg [ 119.08 KiB | Viewed 630 times ]

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