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10
2.0
SUMMARY
OF
CONTROLS
This
section
is
a
brief
run-down
of
the functions
of
all
controls
and
indi-
cators
to
be
followed in the next section
by
a
more
comprehensive
set
of
operating
instructions.
See
FIG.
2.0 for reference.
2.1
POWER
SWITCH
M.93
comes
on
with the opening
of
a blue eye in
its
push-push type
power
switch.
It
switches both sides
of
the
power
line,
consistent
with
good
safety
practice.
Note:
The
REPEAT.
HOLD
function
may
occasionally
be
activated dur-
ing power-up disabling other
M.93
functions.
If
the
REPEAT
HOLD
indicator
lights,
simply press the
REPEAT
HOLD
button to
return to
normal
operation.
2.2
DELAY
SELECTION
Each
of
the delay
selectors,
A
and
B,
selects
one
of
60
possible delay
set-
tings
which
is
then displayed (in milliseconds) in the display
window.
If
the delay time
selected
is
a prime value, the "prime"
indicator
will
light.
The
maximum
delay
for
a standard
M.93
occurs
at
the
128
msec
position.
How-
ever,
there
are seven
more
positions,
up
to
256
msec, for those
machines
equipped with optional
memory.
When
without optional
memory
and
beyond
128
msec,
an
overrange
indication
is
given
by
a decimal point in
front
of
the
delay time displayed.
When
in the overrange condition, the actual delay
is
128
msec, the
maximum
allowed, regardless
of
the longer delay
setting
appear-
ing in the
window.
The
indicated delay
settings
can
be
multiplied
by
factors
of
2, 4,
and
8 with
the
DELAY
MULTIPLY
switch to achieve delay times
up
to
128
msec
X 8 = 1.024
seconds (or
256
msec
X 8 = 2.048 seconds
for
machines with optional
memory).
The
l,
2, 4,
and
8
positions
also
program
the system bandwidth
so
that
the
12kHz
bandwidth
(available
at
the
DELAY
MULTIPLY
lX
position)
becomes
6kHz
at
the
2X
position,
3kHz
at
the
4X
position,
and
1.5kHz
at
the
8X
position.
In
addition to the
discrete
display
selection
described above,
one
can
select
any
delay
from
a continuous
sweep
using the
DELAY
ADJUST
control.
It
can
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