PCB - 2061-771640-H03
Date: 08 Sept 2010
DCM: HANNHTJAAB

Drive just up and stopped working. No sounds, anything. Absolutely no power gets to drive, thinking its gotta be the PCB. Nothing on it looks bad, scorched or broken but just one day - nothing.

Check PCB first for TVS problems. (search this forum)

Then post pic of board (component side) here

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Check PCB first for TVS problems. (search this forum)

Then post pic of board (component side) here

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Hi, we have this working PCB in stock, pls contact my hotmail to see if we can help or not.

Thanks, Eric

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I searched for TVS, Im not pulling anything up.

Once I get home I will post some detailed pictures. Im pretty handy and I can work my way around electronics. If not, I know someone who can.

Id really prefer to just replace the board.

Eric, I will email you.

You can't just replace the board, there is adaptive ROM information that needs to be transferred.

As I remember there are two versions of the 771640 PCB, one with external ROM and one with masked internal ROM. Hence the pic request.

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Hopefully its not the internal. Its manufactured from like sept 2010, so hopefully that helps.

Sorry for the double post, I dont see an edit button.

Also, I noticed this PRINTED on the board, NOT on the white label (The white label code is the one I listed above, I see this one differs)

2060-771640-003 REV P1

As pointed, this pcb contains an external rom chip which needs to be transfered to new pcb.

Be careful when doing the transfer and if you're not too skilled with soldering work, give it to someone who is (ie. a pro). If you screw things up with soldering, things can go really nasty.

Good luck.

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Yep, ROM is at U12 near the bottom of the first pic.

As northwind says, make sure whoever swaps the chip is 100% confident of their de-solder and resolder skills. Any mistake there could prove VERY costly.

You have been advised to go to a pro, so if you insist on DIY then be prepared to accept the consequences.

Good luck!

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Ok. Well, thats still going to be cheaper than sending it to a data recovery place and paying an estimated 900-1100 in recovery.

Ive almost accepted that this data is gone forever. If I get it back, freakin fantastic. But Im pretty pumped that there is actually one more solution that I can afford.

Visually, how does the rest of the board look? I was surprised not to see anything wrong. Im really hoping its nothing inside the drive. Again, if it is, so be it. Lesson learned, always run a mirrored RAID. But was wondering if anything else stuck out to you guys.

Well, if problem with pcb then the estimation of $900-1100 is completely off.
I'd advise you to have this disk diagnosed and if problem only with pcb then cost would be a portion of the amount you mention.
We charge around 200-250 euros for this kind of job. But if there is more damage to disk, well that's a different story. If diagnostics are free you've got nothing to lose.

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Northwind is correct, no way should this job cost $900-1100. That is daylight robbery for a PCB problem assuming that's what they actually quoted for. If you asked for a "worst case scenario" quote then it's more realistic.

His estimate of €200-250 is much more realistic and reasonable.

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That's because HDD Guru's search engine doesn't search for 3-letter words.

See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

... and http://www.users.on.net/~fzabkar/HDD/bi ... diodes.jpg

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