I was given a Syquest 200MB (I believe model number SQ5200) the other
day along with a pile of cartridges... some 200 MB and some 44 MB.
I knew of these drives in the day but never played with one so it's an
interesting exploration. I was considering hooking it to my PDP-11/34
via CMD SCSI controller except...
The drive will mount most of the cartridges although it seems to take
a while. I hear a loud clunk, like a head load sound every few seconds
as the orange LED on the front runs through a cycling pattern of blinking
fast and then slower. After a few cycles of this, the green LED comes
on and then I can sometimes read some data from the drive.
I've got it hooked to a Linux box currently and I've seen a Mac partition
table go by (which makes sense as this stuff was used in a print shop with
a Macintosh). But after a few seconds of spinning, the drive appears to
fault and goes back to the blinking orange LED again. After a little
while of this, then it seems to just lock up... you can't eject the
cartridge with the front panel button and the SCSI interface pretty much
goes dead as the drive can no longer been seen by the host.
I suspected the power supply in the enclosure it is mounted in so I have
swapped that but no improvement. The original was drooping a little
on +12 (down to 11.5v) and although that didn't seem like a huge issue,
I have lots of supplies to substitute so I did.
So, are there any common things that go wrong with these drives-- that
were easily remedied? The heads look extremely fragile with a very
tiny wire looped around the outter edge so I am not so excited about
trying to clean them. The drive otherwise looks pretty clean inside...
and the fact that I can read _some_ data suggests that there is life
and something may just need cleaning, aligning or stopped from slipping.
On the other hand, I am not so sure these drives were designed for field
repair or service...
Chris
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Chris Elmquist
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