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 Post subject: Need Troubleshoot Help WD30EFRX HDD (TVS Diodes, 0Ω R, etc)
PostPosted: April 17th, 2018, 20:49 
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Joined: April 17th, 2018, 19:45
Posts: 1
Location: Canada
Hello fellow data geeks,

I'm new here and would like some insights on my WD30EFRX 3 TB Red HDD that got internally shorted by a faulty PSU/MB.

My board is the 2060-771945-002 REV A (Reference picture, not mine) :

Image

Here's my actual SATA power section that I tried to test out the TVS diodes on as well as some resistors :

Image

So I've run continuity test on the following components with an analog multimeter (All I have) so here's the results so far :

D1 = 0 Ω (Open Circuit?)
D2 = 20k Ω
D3 = 0 Ω (Open Circuit?)
D4 = 20k Ω

R43 =1.8k Ω
R60 = 0 Ω (Open Circuit?)
R83 = Nothing changes on MM
R92 = 0 Ω (Open Circuit?)
R93 = 0 Ω (Open Circuit?)

I'd like to know where are the zero-ohm link resistor(s) on this board as well & which ones are the 5-12V TVS diodes which D1-3 looks shorted.

I should obviously invest in a cheap digital multimeter for further more precise testing of this board.

Any input is appreciated on how to DIY fix this board for a spin-up transfer on a USB-SATA Controller.

Best regards,

-Julien


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 Post subject: Re: Need Troubleshoot Help WD30EFRX HDD (TVS Diodes, 0Ω R, e
PostPosted: April 18th, 2018, 4:21 
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Joined: September 8th, 2009, 18:21
Posts: 12419
Location: Australia
Remove D3 and flow a blob of solder over R43. Test the board off the drive to ensure there are no fireworks. However, before connecting the PCB, check that the PSU output voltages are correct at the SATA power connector, especially if you have swapped cables between modular PSUs.

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