31 Dec
2007
31 Dec
'07
3:46 a.m.
Hi,
I am restoring a Vector Graphic computer and would like to add a hard
disk drive. The controller only supports two kinds of hard disk
drives, the ST506 and ST412. The HD controller is hard coded to
support these DRIVES not just a compatible interface and relies on a
special signal present only in these actual drives.
What signal is that? I've looked at the schematics for thsoe (although
not recently) and I can't remember any extra signals on the connector.
Can this signal, if it exiasts, not be 'faked' on some other drive?
-tony