Casio CZ-1 Service Manual And Spare Parts List page 115

When
the voltage of
(a)
is
2
volts,
it
takes
only 9 microseconds to reach the threshold
level.
Thrtihold
Itvtl
As
VCO
receives a triangle
waveform from the Three- Phase LFO,
it
oscillates
from
55.6
KHz
to
33.3
KHz
in
accordance with
the voltage
level
of
LFO
output.
21-5.
BBO
(Bucket
Brigade Device)
BBO
>OUT
Clock
The
BBD
contains
serial
-connected delay elements. The
input
signal
is
shifted
one
step per
one
clock
pulse.
The
clock pulse
is
generated
in
the
VCO,
and
as
it
varies
from
33.3
KHz
to 55.6
KHz,
the delay
time
varies.
Sound
signal
18k
BBOI
py^r
-J
1
-
H
BBD?
J
30k
-H BBD3
hWH-
U^"*
38k
Mia.
L-OUT
01
Mi*.
•ROUT
01
02
I
»3
03
II
anon
Model CZ-1 employs
three
BBDs
in
order
to give better stereo
effect.