swapped HSA, the arm doesn't move

[positivebit]

saegate momentus 5400.4 120gb 2,5' after a hsa swap, the arm doesn't move
video in attachmcan you hear a weak buzzy noise?

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[dmarques]

Hi,

2 questions: what happened before head swap? Have you tried to close the lid and power up the drive to check if heads move?

[positivebit]

Hi, the hdd had 1 of the 2 heads crashed ( inspected into the clean bench )
Yes i tried to close the lid, but same result.

[dmarques]

Are you sure there's nothing wrong bellow the magnet preventing the heads to move?
Have you inserted PCB screws?

[positivebit]

Are you sure there's nothing wrong bellow the magnet preventing the heads to move?
Have you inserted PCB screws?

Hi, it is possible moving by finger the arm, and i checked twice the pcb board.
uhm..any other idea? if not i will try to put back the HSA to the donor to see if it works correctly.

[dmarques]

Well, that could be an option.
I've seen several situations in which heads didn't move, since missing PCB screws, bad PCB, bad pre-amp, etc.

[positivebit]

i swapped back, the arm doesn't move even in the donor, so it's sure it's demaged.

[dmarques]

So, there are 2 options. Or your PCB is killing your preamp or you damaged it while replacing it.

[positivebit]

So, there are 2 options. Or your PCB is killing your preamp or you damaged it while replacing it.

thanx for clarification.
i do have still my last HSA having a 'last chance try'. i am quite sure i didn't touch the heads while performing the swap.
i am supposing a static.

[dmarques]

Well, give it one more try and check the results.