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Yamaha Electone GX-1 Service Manual page 29

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GX-1
(S/#
5030~
)
Block Diagram
(Rhythm Section)
2
ao
N
oS
s
z
oe oe
7
3
=
a
a
ae
"5
PN6—16-17
=
\
\
=
SE
VARIATION
a
=)
=
sw
=
=
=
+
z
ce
——
a
CONTROL VOLTAGE
Fundamental
=
TONE
BOARD
UI
Voltage
circuit
"
X28
S88
(RHI)
un
é
"
LI
w
ni
=
-
LI
N
-
ie*"
[ e C
s | 2
— —
~~
"
ee
ays
C1 C2
ee
ie
MOI
ee
A
MOI
Sele
VCA
7
(RHY5)
|
}
TEMPO
RE
Down beat |
300
|
|
i o
|
]
+15 b
vw:
T
a
ABE __ matrix
NOISE SOURCE
+
COMPARATOR
ee ee
PN6—6F
CLOCK
(RHY1)
MUII
SR (RHY1)
1A~6B
"
RHY3)
100
a
=
MLI
7)
=
MLII
t
j
6B
Ray,
3
= MPI
2
=
=
MPII
'i
>
MS
re
PN6—22A
PN6—22A
_Toef
r
2
te
ol
ey
ynchro start /Stop
COUNTER
1
C1
C2
Loe
START
ae Gea eciaees
(RHY1)
A
L100
mee
ere
a
A
RB
B
braid
—~
(RHY4) |
es
2222,
:
system)
Ze
PN6—
aa
a
Mal
sid
UP beat control (RHY1) | 19-6»
1a UPbeat | 300
oe Mall
Mall
02
7
+15 ho
SYNCHRO START
ckt. 1
;
Matrix
cyl
cyl
a
Q
is
VR2
3b
a
cY2
cy2
cy
HH
|
LOWER SYNCHRO START
[mace cont
a
.
*
=
(RHY2)
5
ga
PEDAL
SYNCHRO
START
w
BDL
aS
a
aa
i
BDS
E p=0~o
oO
COUNTER
2
iD
"Tes
hee
13'
SF
PN6—20
FS1
PN7—9
SI
SI'
(RHY1)
4A' ~6B'
4A'
=
Cla
Source
13
03
03
14 (RHY5)
*
Fi
=
HCO
(RHY4)
04 -——
RHYTHM
6B' ee
202
=
eo
(osc system)
(RHY4)
IM
UP beat control]
4a' ~ 6b'
3b
300
co
RIM
ckt,
Aa'
(RHY4)
(RHY1)
;
LLL
PN6—16C
po ~o——
6b'
=
(RHY3)
PN6—17A
PN6—2A (MA1)
5A
4A
(MA2)
PN6—3A
6A' 5A'
rm6—90 ye
tt
Tempo lamp
PNG
C2(RHY1) Jo a5
Control signal
(SR)
WP]
pre-gate
ABE.
(RHY1)
PN6—16F
Q,

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