1. The son of a friend put 19V on a WD20EARS. It doesn’t spin…
I thought it was the TVS diode that burned. I removed a diode “D4” which was shorted (I mean let pass in both ways, sorry for my bad english).
The PCB P/N is 2060-771642-001 REV P1.
I can’t see other component burned, but unfortunately it was not enough to repair. Does someone now if I have to replace this TVD Diode on this particular model ? What other component may I test ?
By the way, the other diode “D3”, on the right corner, seems good but I’m not sure what should be the values.
2. I need a replacement PCB for a Western Digital Caviar Green 1.5TB SATA drive. I accidentally applied power with reverse polarity and melted at least one chip on the PCB.
Here’s the info from the drive label:
Here’s the PCB version:
2060-771642-001 REV P1
I see three major parts on the underside of the PCB – a Marvell SOC (main processor), a SMOOTH chip (motor controller), and a Samsung memory module.
Here’s the info for the Marvell chip:
Here’s the info for the SMOOTH chip:
The SMOOTH chip is the only one that’s visibly damaged. I’m hoping that any custom parameters for the drive are stored on the Marvell chip.
So.. does anyone have a replacement PCB? If so, which chip(s) do I need to move over from my broken PCB?
If I can’t find a PCB that matches, can I get away with just replacing the SMOOTH chip?
Order this pcb online: Western Digital PCB 2060-771642-001