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Tandy 1000 Technical Reference Manual

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Tandy 1000
Technical Reference Manual
By a
depression
of
these
keys,
head
will
move
for
one
track
space.
Note:
The
above
number
of
tracks
to
be
stepped
is
required
to
make
the
alignment
track
position
be
fit
with
the
magnetized
condition
of
the
basic
magnetized
phase
"A"
of
the
stepping
motor.
For
the
FDD,
the
lobe
pattern
as
in
Fig.425
should
be
observed
at
the
track
of
even
number.
(j)
Confirm
that
the
H
GAIN
indicator
of
the
SKA
is
off.
If
it
is
on,
turn
it
off
by
depressing
"DO"
key.
(k)
Key
in
"E3"
(ALIGNMENT)
Calibration
value
of
the
alignment
disk
and
environmental
relative
humidity
should
be
set
previously
in
the
SKA.
(L)
Confirm
all
the
indications
on
the
DATA
[l][[]
(\)
indicator
are
within
±30\.
The
initial
digit
of
the
DATA
indicator
is
the
symbol.
f (+)
mark
indicates
that
the
head
is
shifted
inward
from
the
reference
position,
while
-
mark
indicates
that
the
head
is
shifted
outward.
(m)
For
a
double
sided
FDD,
execute
the
same
check
for
the
side
I
head
according
to
the
following
procedure.
i)
Key
in
"0"
following
the
operation
of
item
(L)
(during
execution
of
E3
command)
and
confirm
that
SIDE
I
indicator
of
the
SKA
turns
on.
ii)
Confirm
as
in
item
(L).
Note:
In
order
to
change
the
head
to
side
0,
key
in
"0"
again.
(SIDE
I
indicator
turns
off).
(n)
Depress
"F"
key
(STOP).
(0)
If
the
value
in
items
(L)
or
(m)
is
out
of
the
specified
range,
adjust
-
4073
-

Table of Contents

Other manuals for Tandy 1000

Preview: User Guide
User Guide337 pages
Preview: Programmer's Reference Guide
Programmer's Reference Guide251 pages
Preview: Basic Reference Manual
Basic Reference Manual411 pages
Preview: Owner's Manual
Owner's Manual46 pages

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Tandy 1000 Specifications

General IconGeneral
ProcessorIntel 8088
Processor Speed4.77 MHz
RAM128 KB (expandable to 640 KB)
Operating SystemMS-DOS 2.11
ManufacturerTandy Corporation
Release Year1984
StorageSingle or double 5.25" floppy disk drive (360 KB), optional hard drive
SoundTandy 3-voice sound
PortsParallel, Serial
GraphicsCGA (Color Graphics Adapter)
Graphics Modes320x200, 640x200

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