First post, by Deksor
Hi, so I just got this Intertan DT-88 computer to play with.
The computer turns on, but its hard drive, a Seagate ST325X doesn't spin up anymore (and it's not the platter that are stuck, because I can move the spindle found under the hard drive perfectly fine).
It seems like it's a board's failure rather than a mechanical one, but I don't know what could have failed there.
Here's the board itself:
There were bridges with "0" labeled on them. But they failed as the resistance between their two sides was inifinity ... So I took them off and bridged them back with just big blobs of tin. That should do the trick for now.
But the drive still doesn't spin.
I measured the voltages on the platters' motor and the highest voltages I saw were 0.2V ... Maybe the board just have a power failure ? I've tested the hdd with 4 PSUs so it's not just because I hooked it to a potentially bad PSU.
I thought that maybe caps would be the next target for components that may have failed ...
I also measured the voltages on these two transistors and I noticed something odd :
Now I don't know what these transistors are supposed to do nor what they do (I don't have much knowledge in electronics), but that doesn't look good. Could they be the cause of the failure ? Or maybe the symptom of something else ?
I can read "CEC P09" on them.
I'd really like to fix that HDD because I think some very useful software may be inside it (I'm talking about it further in the post).
Also, its floppy drive, a Mitsumi D359T2, doesn't work : the heads aren't moving, but the spindle spins. Other floppy disk drives work though, but I'd rather keep the original one in.
I've attempted to lubricate the rails and the stepper motor's worm, but it didn't help much. When I turn on the computer, I feel the that the worm is moving slightly indicating the stepper motor can still do something, but it doesn't spin at all. I heared it spin once and it made a terrible sound. But now even during the seek test I don't feel like it wants to move.
Bad motor or rather bad controller card on the drive side ?
However there's a much bigger issue related to this ... The computer asks me to configure it using a program named "SETINIT.EXE". But I can't find this anywhere ... There's little information about this computer online (not even a picture of it), and it seems some people have asked about this back in the early 2000's, but I couldn't find any good answer ...
This is why I'd like to fix the HDD, I think this program could be inside of it.
Can anyone help me ?
Trying to identify old hardware ? Visit Ultimate Retro - Project's thread The Ultimate Retro project - a stason.org/TH99 alternative