req: seagate barracuda 7200.9 hdd service manual st3400633as

[daedalus]

seagate service manual

Hi,

Can anyone help me find a service manual for this hdd. I have p/n 98d145-303 and 98d145-520. Have a load of my data on the dead one, and cant afford the repair quotes im getting (its a pcb fault).

 

[sawwa7]

seagate barracuda 7200.9 repair

hi there
don't try to ask for HDD repair manual , this is not available , u can find a hdd with the same model and firmware that has a good working control board and swap boards hope there's no farther defects in the media of the HDD .
most professials use PC3000 and data extractor software to repair HDD and recover data from it.
good luck

 

[daedalus]

service manual seagate barracuda

Hi Sawwa7,

Have you ever tried this board swapping with drives? My only concern is that being a high density drive the board contains calibration data on an eeprom for the specific drive. I have a similar hdd with the same firmware rev, but a slightly different pcb revision (closest i could find), and the reason i was looking for a spec sheet is to find out if they are compatible. I have the kit here to copy the eeprom data from one board to the other, but again i dont know if they both use the same layout for data (same firmware would suggest this, but have no concrete answer).

I have also been taking a look at the board, and the fault i have is a short between +12v and gnd which is tripping the pc psu. All i can find hooked to the 12v supply is a transient suppressor and 2 mosfets, am i missing something here? surely a 1/2 bridge isnt sufficient to run the hdd motor?

Also are there any hdd manufacturers who actually do release service manuals? maybe theres someone better to buy the replacement from.

 

[sawwa7]

fix eeprom hdd seagate barracuda

hi daedalus
well, i'm not a HDD repair specialist , but i've seen many discussion about things like that and hot swap controller board is working fine when both firmeware are identical .
as i can see u can also swap the flash chip from the old board to the new board and as far as i know there's no one of the hdd manfactures who sells that manuals , u may find substitution boards only taken from a good working drive , even the chips they sell are salvaged from a working boards :!:
no manafuctures sells chips or manuals and i think the most important thing for u now is to recover ur data from the damaged drive , u already had a bad controle board , so give it a try .. there's nothing to lose here if u swap the controle boards with identical firmware .
good luck and hope someone expert in that can help u much more .
Regards