Help identifying part from damaged drive

[kehan]

Hello all,
I am new here and trying to help my father. He recently drove over his external hard drive and a component got broken off of the PCB. The drive still spins up fine and the lights come on and it isn't making any suspicious noises so I get the feeling that it might still work.

I have tried my google fu on the part numbers and I can't find anything that may help. My father suspects that the missing part is something called a 'low pass filter'. I would appreciate it if you could help me try to identify this component so that we can try to get a replacement for it. The component is labeled 'L2' on the PCB.

Anyway the drive has the following numbers:
MK2552GSX
HDD2H02
C WL01 S

PCB with the missing part highlighted:

PCB with missing component highlighted.

Top of disk showing labels:

Top of the disk

Looking forward to any help that anybody can give.

Cheers,
K

[montarbo]

L2 is just like L1. Mean a filter coil or ferrite SMD. Bypassing is no problem at all.

As you can see L1 is a ferrite SMD but from the looking of solder plate of L2 I think its a coil filter. Solder two wires between the plates and see.

Attachments

[pcimage]

It looks to me that it's only the USB adaptor board (that the standard Toshiba SATA HDD is screwed onto) that's possibly damaged, so try removing the Toshiba HDD from the case and connecting it up to a PC SATA port, or through a USB caddy.

[fzabkar]

L2 is just like L1. Mean a filter coil or ferrite SMD. Bypassing is no problem at all.

As you can see L1 is a ferrite SMD but from the looking of solder plate of L2 I think its a coil filter. Solder two wires between the plates and see.

+1, although two blobs of solder should do it.

[kehan]

Wow so many answers - it looks like my dad has soldered over the components and I'm waiting for him to let me know whether it works. You've certainly saved a lot of heartache. Makes sense that it's the USB controller now that you mention it.

[kehan]

here's a picture of the soldered L2

Attachments

[hhddrec]

+ pcimage


I will detach toshiba drive from USB controler, and try to read it with other USB controler or directly to SATA controler.

good look!

[fzabkar]

here's a picture of the soldered L2

You might like to detach the USB-SATA bridge PCB from the HDD and power it up on its own. If it shows up in Device Manager (or under USBDeview) as a USB mass storage device, then that should give you some confidence in it.