Re: Damaged? ProFile Drive Motor

Hi Tom,

first of all: The internal Hard-Drive in a Lisa 2 usually really does make such sounds you described. Some older external ProFiles do the same.
It's infernal loud, when such drives spin up. Even the "sandy noise" combined with the "whining squealing sound" is normal.
I have several drives, which work perfect, and all early models before 1984 are extremely loud.

It seems, that your drive still does work, but: either the write/read-head is out of it's proper working position or, much more likely, the track zero on the winchester disk is no longer readable

The second error causes exactly such a failure: green LED blinking, then permanent light after a while red LED lights up and remains

As you described also, that your drive has been full of black dust, can you specify, where this dust was located? Have you carefully opened the disk itself, to get a closer view of the disks surface? Perhaps the write/read-head is also very dusty, or there are viewable scratches on the disks surface?
You even can run the ProFile, when opened the winchester disk. It's not evacuated and you can try to boot after you opened it. The cables of the Lisa or the external ProFile are long enough.

So a happy New Year: Tom from Bavaria, the country of the famous Octoberfest, the marvellous castles of Koenig Ludwig and the Alps

Am 31.12.2013 um 03:21 schrieb Tom Frikker:

> I know that repairing ProFile Drives can be a tedious and difficult
> endeavor, but I thought I'd post my two drive's symptoms here just
> to see if anyone had any answers.
> The drive, when powered on, spins up and gets pretty loud with a
> spinning noise; also, there is a sandy noise when the drive spins
> (almost like sand caught in a motor, if you understand what I'm
> saying), plus a high-pitched squealing sound. The drive eventually
> starts to check its disks; the light blinks and I hear the stepper?
> motor moving, which sounds fine. After a while, the drive does come
> to a solid red light. I don't have a working Lisa (yet) with which
> to test this drive, but even though it gets to the red light and
> "seems" like it's ready to boot, the mechanical parts of the drive
> just don't sound healthy (it makes me cringe when I listen to the
> drive spinning up because I'm worried that I'm damaging it). I
> opened up the drive today and took out the controller board.
> Underneath, where there's a big drum-like contraption that spins, a
> bunch of fine black dust had settled on everything. I cleanly blew
> out the dust that I could and cleaned as much of the rest as I
> could with a swab and alcohol. After re-assembly, the drive still
> sounds the same. Does anyone have any idea what's going on here?
>

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