Radio Shack TRS-80 Operation Manual page 6

Features
Computer
Controlled:
Allows
the
Computer
to start
or
stop the tape
to load or
save
programs and
data,
CUE/REVIEW
Functions: Enable instant fast-forward or
rewind
while
in either
save/record or load/play
mode, independent of
the
Computer.
These functions allow
you
to quickly locate
any
desired
portion of
the
tape,
MONITOR
Switch:
Enables
monitoring of
the
sound
while
saving
programs and
data.
DATA
Indicator:
Illuminates to
show
that
programs and
data
are
being
loaded
to the
Computer.
Also used
with
CUE/REVIEW
to locate data
and
/or
programs
on
the
tape.
VOLUME
Control with
Preset
Marker:
Set to the
marker
position for
program and
data loading.
Automatic Shut-Off Mechanism:
Automatically
shuts off the recorder
when
the
end
of the tape
is
reached while
in
the play/load or record/save
mode.
This saves
wear and
strain
on
the
unit,
the
tape,
and
the
batteries.
Built-in
A.L.C.
(Automatic
Level Control)
Circuit:
Enables
you
to
automatically obtain perfect recording
levels
for
both
recording music
and
saving
programs/data
» no need
to adjust the
volume.
Tape
Counter: Helps
you
to
quickly
find
a
specific
section
of
the
tape.
Switchablc
PAUSE:
Permits
you
to stop the tape instantaneously, either
in
record
/save
or
pi
ay
/load
mode
-
or
you
can switch off the
remote
function of the computer
to allow
for
manual
control of the tape
move-
ment.
Convenient 3-Way Power:
Can
be
powered by
the
internal batteries,
by
an
AC
power
source
via
AC
adapter, or
by
a car battery via
DC
car
adapter.
RECORD/LOW BATTERY
Indicator: Serves
two
functions.
During
recording/saving, the
LED
will light
to
show
the presence
of
a recording
signal.
In
any
oiher
function,
it
will give
you
an
indication
of
the battery
condition
-
the
LED
lights
up
when
the
batteries
need
to
be
replaced.
You may
note
that the
LOW BATTERY
Indicator
flashes briefly as
you
switch function keys. This
is
normal and does not
mean
the
batteries are
weak.
If the
LED
stays on, the batteries need
to
be
replaced.
The
LOW
BATTERY
Indicator
is
designed so
that
the
LED
lights
up any
time
the
voltage
drops
below
the required
level.
Don't
let
the batteries get so
weak
that
they cannot
light
the
LED,
-2-