15 Apr
2007
15 Apr
'07
1:01 a.m.
From: Josh Dersch <derschjo at msu.edu>
---snip---
From the responses I've received I get the impression it's possible to
substitute a hard drive controller for a 5mb TRS-80 hard drive for #2 -- I
do happen to have one of these (I have a Model 4 external 5mb drive with a
broken drive)... if it is possible to do this, can anyone provide details
on how it's done?
Thanks once again,
Josh
Hi
It might be simpler to remove the hard drive from the 8 Meg box and install
it
in the 5 Meg box.
As I recall there were a number of wires that were connected directly to the
5 Meg drive.
These essentially connect the front write protect switch and drive the light
on the front
panel. I believe these can be ignored. The power and signal cables are the
same.
You might need to check the drive select jumper on the 8 Meg to match the
first
drive. The 5 Meg controller should connect to the interface card. There is a
site that
has manuals for the 5 Meg drive including schematics. I've misplaced the
pointer
for it but it is the one with all of the TRS80 manuals.
Dwight
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