Sequential PROPHET-600 - 3-7 IN CASE OF DIFFICULTY

Single Voice Unison: Play and hold any one note,
then switch UNISON
TRACK on.
In
effect,
this assigns one voice
for tracking. This
will
yield a
thinner sound
than Normal
Unison,
where six
voices
sound simultaneously.
Glide: Lastly
there is the GLIDE knob,
which operates
identically whether the
keyboard
is polyphonic or in
unison. When set to 0, there
is no effect, because the
oscillator control
voltages are allowed to step
instantly between
the discrete
voltages
required to
sound specific
pitches.
As GLIDE
is
advanced, the rate at which the
oscillator control
voltages change
is
decreased. This
introduces "portamento"
between
the notes,
which can be subtle or quite
extreme.
Because
the six
voices
are
assigned to each
new
note
in rotation,
the polyphonic glide
function is
not easy to predict.
The amount of
voice glide is the
difference between
the
last and next note to
which it is assigned.
For example, if GLIDE is
turned
up and
all voices
have been assigned to the
bottom of the keyboard (by
virtue of six different
low notes having been played there),
and you then play notes
each in the middle and
high ranges, the middle notes
will "arrive" before the
higher notes.
In any Unison
mode, the voices glide at the same rate.
3-7
IN
CASE OF DIFFICULTY
Power
If the
Prophet-600 is
receiving power,
it
will display program
numbers, or the TUNE or
one of the TAPE
switch
LEDs
will be lit.
If
no LEDs are lit, either
power
is
not reaching the unit or the fuse has
blown.
Disconnect
power cable and check fuse by opening fuseholder.
Check the
power
source by
plugging in other equipment.
Examine the
power
cable
for damage.
Audio
If the PROGRAM display
lights
but no
sound can be obtained, check that PRESET is on
and that the VOLUME control is
turned
up.
Test the synth by simply
connecting stereo headphones directly to the output.
If
still no sound can be heard, try substituting the audio output cable
with one known
to be good.
Check your
amplifier by trying a
high-level
audio input such as
another synthesizer or
tape deck.
CM600A 12/82
3-5