Disassembling WD20EZRX (Western Digital Green Desktop Hard Drive 2.0TB SATA) PCB

Written By: Andrew Sullivan
  • Comments: 0
Disassembling WD20EZRX (Western Digital Green Desktop Hard Drive 2.0TB SATA) PCB

Difficulty

Very easy

Steps

11

Time Required

25 minutes

Introduction

My 2012' WD20EZRX (SATA WD Green HDD 2TB) stopped working: no noises, no signs of life, not working with any of my SATA-USB adapters.

I want to open the PCB and check (remove and/or replace) the TVS diodes, maybe it will help.

  1. k6s2pmUbvLjKlKXu

    • View from the top

  2. KORFHKLA4vETZkJT

    • View from the bottom. These TVS diodes should be on the back side of the PCB.

  3. FDglxVXPYfxTi1iF

    • I need a custom screwdriver.

  4. QLJyomGNkmd1HbWf

    • Unscrewing all 4 screws.

  5. 6TuXpOaGxlKHjoFw

    • Done.

  6. JRcKWday5u6PZFHg
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    • The Drive without the PCB. And the back side of the PCB.

  7. qMicxXOSbU12MkEw

    • I see that TVS diodes D3 D4 are on the bottom left part of the PCB.

    • A TVS (Transient Voltage Suppression) diode works by clamping voltage spikes.

    • If diode(s) are shortened, they can be replaced.

  8. CjAnbKgNQTPUnYHA

    • I am using a cheap digital multimeter in diode mode to check both of them in 2 directions

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    • First 3 measurements are ok (each diode shows shortcut in 1 direction and non shortcut in another)

  10. NVofS1BlbVuJEKUf

    • Last measurement is also ok

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    • Connection pads are green and dirty, I'm going to clean them with a pen eraser (rubber). You see the result on the 2nd photo.

    • Unfortunately, it didn't helped, and the drive is still not working and not making any noises.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

Andrew Sullivan

Member since: 30/05/20

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