.:madworm:.'s photos with the keyword: click of death

Harddisk - stuff thrown away

Harddisk - stuff thrown away

.:madworm:.
23 Jul 2011 103
Harddisk hub motor

Harddisk hub motor

.:madworm:.
23 Jul 2011 144
It is indeed a BLDC motor. The coils are Y-wound. The left pad goes to the center point N, the remaining are the 3 phases U,V,W. Single-coil-resistance is about 1.6 Ohm. The disk's PCB contains a Hitachi HA13645 driver. Unfortunately I just can't find a datasheet for that. From what I've read so far, driving these with back EMF detection on the un-driven coils could be quite difficult. scholar.lib.vt.edu/theses/available/etd-09152003-171904/u... www.atmel.com/dyn/general/tech_doc.asp?doc_id=10416
Harddisk hub motor

Harddisk hub motor

.:madworm:.
23 Jul 2011 133
It is indeed a BLDC motor. The coils are Y-wound.
Coil + parking position bumper

Coil + parking position bumper

.:madworm:.
23 Jul 2011 128
Harddisk - heads and platters

Harddisk - heads and platters

.:madworm:.
23 Jul 2011 117
Magnet with parking position 'thing'

Magnet with parking position 'thing'

.:madworm:.
23 Jul 2011 112
I don't like what I see

I don't like what I see

.:madworm:.
23 Jul 2011 113
That's what I call a lot of corrosion.
Samsung SpinPoint - 2006/05/26

Samsung SpinPoint - 2006/05/26

.:madworm:.
23 Jul 2011 113
Time to go 'back to sender'.
Harddisk - heads and platters

Harddisk - heads and platters

.:madworm:.
23 Jul 2011 116
Unfortunately all of these very nice Torx screws don't seem to be metric. At least not M3. I like Torx much better than the common socket head ones.
The remaining parts

The remaining parts

.:madworm:.
23 Jul 2011 124
I'm planning to play with the hub motor a bit. It is easily removed and as long as the electronics is still functional I'll have a look at the signals going or coming from the 4 pins of the motor.
Max headroom - NOT

Max headroom - NOT

.:madworm:.
23 Jul 2011 98
Time to say goodbye !

Time to say goodbye !

.:madworm:.
23 Jul 2011 115
More than 16500 power-on hours without any trouble. As of lately it started talking to me: "CLICK CLICK CATCHUNK!!!!". I instantly moved my system to a new disk. The smallest one I could get was 500GB. Time is moving fast. ALWAYS MAKE BACKUPS - REGULARLY.