6 Aug
2002
6 Aug
'02
11:25 p.m.
Sellam:
I *think* that what you're seeing with the disk drives
is standard normal behavior. If there's a bootable
disk in the drive it'll load the DOS, if there's a
data disk there it may put out a message complaining
about it, but no disk may do nothing at all.
Normally under these circumstances you'd put the disk
in the drive and press the RESET button (not power
cycle), tho you could certainly cycle power too.
It's been a long time since I used a Model III. My
Model 4 will I think do what you describe (it's buried
at the moment or I'd check it now). Also, last I used
it my Model 4's brightness/contrast controls are still
working, but they may be different from the Model
III's hardware.
-- Frank
--- Sellam Ismail <foo(a)siconic.com> wrote:
I am trying to get a TRS-80 Model III working. When
I turn it on the disk
drive spins for a while looking for a disk I
presume. All I get on the
screen are wispish diagonal lines as if the
horizontal hold is all
whacked.
I managed to unstick one of the video adjustment
knobs on the left
underside but all it does is affect the brightness
level. The other one
requires a screwdriver to move at all (shimmying it
up and down) and does
not seem to affect the display. I haven't opened it
yet to see what
adjustments are inside. I'd rather not, but there
don't seem to be any
adjustment pots accessible from outside the case.
What's weird is that I have access to a bunch of
TRS-80 Model 3's here at
the ACCRC and pretty much all of the ones I have
played with so far are
basically "dead" in this manner. The one I'm
working on just came in
today and is in the same state. Also, the video
knobs on the left
underside are all stuck on everyone I've tried to
get working. What is
the deal with that? Do they get rusted over time or
something? Very
annoying.
The fact that the disk drive spins up when I turn it
on is a good sign I
hope.
Any help on this would be appreciated. I know next
to zero about the
TRS-80 series.
Sellam Ismail
Vintage Computer Festival
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