"mobile" wrote in message
. com...
thanks for all the replies,
this is what information I am looking for, is how to replace the
controller board. and where do I find instructions of how to replace the
board. this information is not vital, I just want to see how to fix the
drive or not, but not at the recovery prices from the drive repair places.

thanks to all for the insight.


Ground yourself, either with an antistatic wristband or work on or near a
grounded metal sink. Undo the screws (usually Torx) which secure the
controller to the drive. Gently lift the board away from the drive. Usually
connections are made by spring loaded contacts, no connectors need to be
removed. Repeat on donor drive and fit new board to your drive in reverse
order of removal procedure.

Do not under any circumstances remove the drive's cover plate. It will allow
dust in which will cause unreliability and then failure. In any case,
there's usually nothing user serviceable inside.

Connect the drive as normal to your PC, and when your PC boots watch the
drive detection stage, it should be detected as normal. If not, you have
little to no chance of success. If the controller is completely the wrong
revision you may destroy it and the drive, despite it physically fitting.

Is that what you wanted to know?

Dave