Bbd - Casio CZ-1 Service Manual And Spare Parts List

20-3. Circuit
Function
(T)
Decoder
for
Stereo
Chorus .... Generates control
signals for
the analog switch.
(SN74LS174N-2)
(2)
Analog
switch
Selects
whether or not passing the
melody
signal
through
(TC40538P)
Stereo
Chorus
circuits.
(5)
BBD
(MN3209)
Bucket Brigade Device
for
Stereo
Chorus
effect.
(4)
Output
Amp
Mixes
the stereo or
monaural
signals.
20-4. Line-out Circuit
Rtiay
RIGHT-OUT
(A/Ate)
LEFT
OUT
(B)
T
RIGHT
VDL20-
4.7k
6.3
V
1000m
r
O G
LEFT
To
main
Amp.
M524IL
VCA
AG1 (LEFT)
LA646201
H/2)«2
vcc
>
I
-vcc
AG1
(RIGHT)
AGt
(T) Stereo sounds
are
output only
when
output
plugs are
connected
to
both
A/A+B
and B
terminals,
while
mixed sound
is
heard
when
output plug
is
connected only one
terminal.
Note:
When
output
plug
is
connected
at
B
terminal,
mixed sound B/A+B
is
also output.
(?)
The
relay
eliminates a shock
noise at
power ON/OFF.
Voltage
level
VDL2
is
controlled
by
signal
LDC
from
terminal
PB6
of
Sub CPU.
(Refer to page
19)
-48-