WD1200JB PCB Failure No ROM

[ddrecovery]

The above drive has a blown PCB. Big hole in the motor chip. The board has parallel flash so cannot swap ROM chip. I have a donor board which gives me access to SA, but not data due to the incorrect ROM. The original board does power up, but stays BSY. Is there anyway to get the original ROM from the SA? (don't think there is with this drive family). Guess my only option is to try to get the board to come RDY? Removing TVS chip does not work.

Attachments

[mr_spokk]

Swap ROM (flash)...

[ddrecovery]

ROM is integral on the I chip. Not possible to do a chip swap.

[thatdellguy]

Flash rom is right in front of you. Pretty easy with adapter and reader.

[thatdellguy]

Is there anyway to get the original ROM from the SA?

That was pretty funny!

[jono-ats]

U8 is it.

[fzabkar]

U8 is it.

:shock:

[mr_spokk]

ROM is on U2...

[ccc]

M29F102BB...That's the rom chip you should move it to the working board.

Rgds

[fzabkar]

Tutorial - Linear and Switchmode Regulators used in HDDs:
http://www.alexsoft.org/viewtopic.php?f=59&t=231

Datasheets for HDD semiconductors, regulators, op-amps:
http://www.users.on.net/~fzabkar/HDD/HD ... _Regs.html

Datasheets for HDD memory ICs including EEPROM, EPROM, flash:
http://www.users.on.net/~fzabkar/HDD/HD ... Flash.html

[jono-ats]

My error -- you're absolutely right.

Maybe I shouldn't post so late at night!

The ROM is U2.

[ddrecovery]

My error -- you're absolutely right.
Maybe I shouldn't post so late at night!
The ROM is U2.

Tutorial - Linear and Switchmode Regulators used in HDDs:
http://www.alexsoft.org/viewtopic.php?f=59&t=231

Datasheets for HDD semiconductors, regulators, op-amps:
http://www.users.on.net/~fzabkar/HDD/HD ... _Regs.html

Datasheets for HDD memory ICs including EEPROM, EPROM, flash:
http://www.users.on.net/~fzabkar/HDD/HD ... Flash.html

Thank you.