Burnt Chip on WD PCB

[pmd5700]

I have a WD800JB-00JJA0. I hooked it up to a faulty external drive enclosure and burnt up something on the PCB. It looks like it’s “L4”. It looks melted. Possibly C62, too. Any idea how I could fix this? Or at least temporarily use it to get the data off?

[pmd5700]

Sorry, I made the post then kept getting an SQL Error when trying to upload a picture. Here is a picture.

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[fzabkar]

It appears that the failed inductor (L4) is in series with the +5V supply. Therefore I expect there is further damage, possibly to the preamp. :-(

[pmd5700]

It appears that the failed inductor (L4) is in series with the +5V supply. Therefore I expect there is further damage, possibly to the preamp.

Would this mean I would need to replace the board? Or is the entire drive likely dead?

[datahaze]

It appears that the failed inductor (L4) is in series with the +5V supply. Therefore I expect there is further damage, possibly to the preamp.

Would this mean I would need to replace the board? Or is the entire drive likely dead?

If the preamp is damaged, you will need to replace the head stack assembly. If it's just the PCB, a PCB swap (and ROM swap) will do the trick.

[pmd5700]

I wiuld replace the PCB + ROM chip (or ROM CODE).

If the drive just clicks the pre-amp (inside the drive) is gone and if you do need to recover the data out of the drive you will need to send it to a professional data recovery firm.

DO NOT OPEN THE DRIVE YOURSELF outside a HEPA 100 aseptic room ...

Thank you. I will try a new PCB with a transferred ROM chip. Do you think it's safe to plug my device in now to a proper connection and see if it spins up or does anything?

[pmd5700]

I wiuld replace the PCB + ROM chip (or ROM CODE).

If the drive just clicks the pre-amp (inside the drive) is gone and if you do need to recover the data out of the drive you will need to send it to a professional data recovery firm.

DO NOT OPEN THE DRIVE YOURSELF outside a HEPA 100 aseptic room ...

Do you think it would be safe to power up the drive again with a proper connection to see if it spins?

[jono-ats]

Yes. No if there is a head crash.

[pmd5700]

Yes. No if there is a head crash.

I ended up trying to plug it in again. Nothing happened at all. No noise or anything. I'm going to get a replacement board to see if that fixes it.