Yamaha CS-30 User manual

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CS-30(S/# 1001 ~)
INDEX (S 2fc)
CORDING GUIDE(*JB«>¥5I) .1
DISASSEMBLY PROCEDURE^#^*).2
SPECIFICATIONS^^:*) .3
PANEL LAYOUT!'*** KTO!) .4
SSK Circuit Diagram (SSK->— 10 ) . 5
SSK Circuit Board & Wiring (SSKx- 1 *t&0) .6
VCO Circuit Diagram (VCO->- IE). 7
VCO Circuit Board & Wiring (VCO->- 1 **0) .8
VCF Circuit Diagram (VCF-> — 10). 9
VCF Circuit Board & Wiring (VCF->- 1**50). 10
VCA Circuit Diagram (VCA->- M 2 ).11
VCA Circuit Board & Wiring (VCA->- 1 * *50) .12
SEQ Ciruit Diagram (SEQv— 1 0 ) .13
SEQ Circuit Board & Wiring (SEQ->- 1**50) . 1 4
LFO Circuit Diagram (LFO*>— 10) . 1 5
LFO Circuit Board & Wiring (CFO->- 1**50) .16
PRA Circuit Diagram (PRA->- 10 ) . 17
PRA Circuit Board & Wiring (PRA->- 1**50) .18
ADC Circuit Diagram (ADCx— 10 ) . 1 9
ADC Circuit Board & Wiring (ADC->- 1 **50) . 1 9
KEY SWITCH Circuit Diagram (*«->- 10).20
PN3 Cricuit Diagram (PN3->— 10).20
REAR PANEL Circuit Diagram ( 9 7-'<*Jl>'>- 10) .21
REAR PANEL Circuit Board & Wiring (9 1 **50).21
Standerd for circuit inspecpion and adjustment ('>— l**SP8*iJQ.22~37
PARTS LIST (''-7 9X1)

CS-30(S/ # 1001—)
CORDING GUIDE |)
O CIRCUIT BOARD AND WIRING
Two (2) black wires are connected to “E" on circuit board. One goes to each **E*’ terminal of A and
FG circuit boards. In this case, the coding system is as follows:
Circuit board
mE
BL12 x 2
[The pattern shows the view
from the side parts mounted)
Color of wire.
Number of stands contained in the core.
(In case of 8 cores, the number is not shown.)
Number of wires.
RA-A-EI2)
RA-FG-EI2)
Terminal point physical eyelet space location
• Terminal reference.
•Unit (Board).
• Rack general physical location.
Terminal point shown on the board.
(Solder eyelet space number)
I— Terminal E shown on the board.
SYMBOL DESCRIPTION
Transistor
FET
E C B
• E3S
D G S
|BB*1
E: Emitter
C: Collector
B: Base
S: Source
G: Gate
D: Drain
Capacitor —lh~ Electrolytic capacitor
Polarity
Amark : Tantalum capacitor
NP mark: Nompolar capacitor
Myler, Ceramic and
Polystyrene Capacitor
Diode
(Zener Diode)
ABBREVIATIONS OF WIRE COLOR IN ELECTONE
Switch
OB
OT
OM
B: Break
T: Transfer
M: Make
BLACK .
.BL BROWN .
.BR RED...
RE
ORANGE. .OR
YELLOW.
...YE GREEN GR
BLUE.
. BE
VIOLET....
VI GRAY GY
WHITE .
. WH
GRASS GREEN.
•••••• » ■
.GG SKY BLUE ..
SB
PINK .
. PK
TRANSPAPENT .... .TR
Q WIRE COLOR - Musical Note Indication
C C# D
I I I
BR RE OR
D# E F
I I I
YE GR BE
F= G G# A A# B
I I I I I I
VI GY WH GG SB PK
LOGIC SYMBOL
fMILn
YAMAHA
NOT
A"O-Y
A-0"<
NOR
NAND
SO-
Exlusive OR
Truth Table
_ A B
Y
0 0 0
1 0
1
0 1
1
1 1
0
NOT
(Inverter)
Truth Table
A Y
0
1
-J_ _Q_
OR
Truth Table
A
B Y
0 0
0
1 0
1
0
1
1
1
1 1
NOR
'.O'
Truth Table
A
B Y
0
0
1
1
0
0
0
1
0
1 1 0
AND
Truth Table
A
8 Y
0
0 0
1 0
0
0
1 0
1
1 1
NAND
::[•>'
Truth Table
A B
Y
0 0
1
1
0
1
0
1 1
0 0 0
-1 -

CS-30(S/ft 1001 —)
DISASSEMBLY PROCEDURE
Removal of Panel
Remove all screws illustrated above and take away
the panel, lifting it up gently.
W) 9[ls TTSt'o
Removal of Keyboard
After removing the panel, pulling out the screws as
shown above permits rotating the keyboard.
Removal of Circuit Boards
h<7)WL
Take the circuit boards away gently from the
panel, removing each volume knob and hexagonal
nut without any damage or scratch on the panel.
A* fri'Mca* >J 0 A WO * * £: A
UTTSt'.
-2-

CS-30(S/# 1001 ~)
SPECIFICATIONS
Keyboard.44 keys, 3'/ 2 octaves
CONTROLS
PITCH.TUNE:+65 cents to -65 cents
DE TUNE; VCO 1: +700cents
to -500 cents
EG: SELECTOR. DEPTH
VCO.KEY VOLT: SEQ/KBD
FEET;
VCO 1: 2' 4' 8' 16' 32' 64'
VCO 2: 4' 8' 16' 32' 64' 128'
PW:50-90%
PWM: 10-90% (LFOsine)
MOD VCO 2 (VCO 1)
MODULATION: FUNCTION.
DEPTH
VCF.VCF1 INPUT:N/(TVC01/K
VCO LEVEL
VC02/N0ISE/
EXT LEVEL
VCF2 INPUT: VCF1H/ f\ / IT
VC02
KBD FOLLOW
MODULATION: FUNCTION.
DEPTH
CUT OFF FRQ
RESONANCE
EG: SELECTOR. DEPTH
VCA.FILTER: HP/BP/LP
VCA 1; Input selectors: VCF
1, VCF 2 and-VVCO 1
RMO(VCA2): NORMAL/RMO
VCOI/LFO
HOLD: HOLD/EG
EG selector; A, C and E
MODULATION: FUNCTION,
DEPTH
TRIGGER.LFO/NORMAL,
SINGLE/MULTI
SEQUENCER.CLOCK SPEED: 0.1 ~30Hz
STEP: 1 to 8
NORMAL/KBD
CLOCK/MANUAL
MANUAL/START or STOP
HOLD
PITCH: 1 to 8
EG.TRIGGER: KBD/SEQ/EXT
EG TIME: NORM AL/TIMEx5
EG 1; IL . . . 0~ -5
AL . . . 0 - +5
AT . . . 1msec.- Isec.
DT . . . 10msec.~10sec.
RT . . . 10msec-lOsec.
EG2, 3; AT . . . 1msec.~1sec.
DT . . . 10msec.~10sec.
SL . . . 0 - 10
RT. . . 10msec.~10sec.
LFO.EG: FUNCTION. DEPTH
SPEED: 0.1 - 100Hz
EXTERNAL.Sensitivity: 0/—20 (dBm)
TRIGGER LEVEL: Trigger
ON at 60mVp.p (Min.)
SIGNAL LEVEL
PORTAMENTO .... 4sec. at LONG
PITCH BEND.±1 octave at LIMITTER max.
0UTPUT . B ALANCE. VOLUME
TERMINALS
OUTPUT.1, 1+2,2;
HIGH: Od8m/600£2
LOW: -20dBm/600£2
FOOT CONTROLLER .... for volume control
SEQUENCER OUT . . CONTROL VOLT, TRIGGER
KEY VOLT.IN/OUT
TRIGGER.IN/OUT
EXTERNAL.IN
PHONES.for headphones
POWER SOURCE:. AC 50/60 Hz
POWER CONSUMPTION:40W
DIMENSIONS. 978(W)x330(D) x 173(H) mm
38'/j(W)x1 3(D)x6-13/16(H) in.
WEIGHT.15kg, 33.0 lbs
-3-

SEQ
TRIGGER SEQUENCER
n ao “ n
L_JmANUAI |—|
HOAMAI
• HO
o
1
o
2
o
3
O
4
O
5
o
6
o
7
O
8
UAl
□ □
CLOCK SPEED
SUM
HOLD
SlOf
STEP PITCH
EG 1
EG 2
EG 3
□
WO
NO*Ml
QJS n - 0 *" 1
UT
□
s rr%
1*1 LJ»*'4
□
n ,,o,,ui
m i—i tun.*
s*ai
□
INITIAL ATTACK ATTACK OECAY HillASE
LEVEL LEVEL TIME TIME TIME
ATIALX DECAY SUS1AIN RELEASl
TIME TIME LEVEL TIME
ATTACK DECAY SUSIAIN RELEASE
TIME TIME LEVEL TIME

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CS-30(S/# 1001—)
Circuit Diagram
ICI ‘YM240OO
[C2 •TC4049P
IC3,4,6,0 : TA7504S
IC5 *TA7505M
IC7 : NJM4550DN
Tf 1,4 ‘2SA56I
Tr2,3 ‘2SC450
Diode*DI-D4 -ISI555
ZDI.2 -02Z75A
0mork* * 1 %
©mark* 5 0.1%
— 5
K EC-90106-77A

100/16 .
G #(OI
1C
ICI
IC2
103,4,6
IC5
IC7
Transisi
Trl ,4
Tr2,3
Resistoi
Diode (
ZD1.2
D1 —4
Semi va
V8K4-1

CS-30(S/# 1001 —)
JK-J5-2
(KEY VOLT-IN)
VCF-KV(©-7)
vco
Circuit Diagram
VCF-F1 KCD-6)
WH
GG
VCF-F10(©-10)
(PVR5)
-10
0Jo”ivcF-n.i(CD-3)
^O^VCF-M(0-1)
P^|o^-VCF-a2((i)-2)
^0-^-VCF-N2«D-12)
JK-J7-2
(SEQ VOLT)
PK VCF-EX3KD-14)
— JK-SW1-T
<s« (EXTERNAL)
— VCF-S/H((D-10)
LFO-S/H(fi>10)
LFO 011(0)10)
VCF-NM)-4)
LF0-N((!)-8)
0*15
-15
EKO
-HOO-
-C-»'lO
'I
IEG DEPTH 1
EG
SELECTOR
(PVR3)
LF0-A(fl>5) BR
LF0-C(®-3| ORr '
>2) VCF.C(®-B)^
-SSK-EGKD-12)
KFC-00107-78 A

CS-30(S/# 1001 ~)
vco
Circuit Board & Wiring
pvAio
B iOk
*v(1 *
B 10K
17C0»
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r-rm
wca
* JK
%
4
0 —
* — 1 —
* . i
13
13 .
n_
r~i_
J S"'
_a
S/M
7 IXT
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sxt
V
■
4
3
3
•V
1
View from the printed pattern side of the circuit board.
(Note)
1. 1C
IC1.4
: NJM4558DN
IC2, 3 : TA7504S
IC6, 7
: IG00153
IC8.9
: IG00158
IC5 : IG00151
2. FET
FET1, 2 : 2SK30A
3. Diode
D1,2
: 1N34A
D3, 4 : 1 SI 555
4. Resistor
©marks : 0.1%
©marks : 1%
VCO III (IG00153)
This 1C is used for voltage controlled oscillator.
Many defferent frequencies are produced by the vol¬
tage supplied.
1. FT. Resistor for determination of the feet.
The electric current is provided to
the pin from transposition changing
circuit so that the octave can be
determined.
2. KV . Input of the key voltage
The input of the voltage is provided
to the pin in corporation with the
keys held down.
High voltage High frequency
Low voltage Low frequency
(ex,)
Transposition "normal"
OFF-SET .... Zero adjustment of input
4. / buffer circuit
5. Vee . -15V input power source.
6. Com .... Phase compensation for input buffer
amplifier.
Normally, the output (KV ♦ IV) is
supplied to the pm.
7. OUT .... Output
3.5V pp
8. GNO Earth
9. Vref . Input of the standard voltage.
10. CT . Circuit for lime constant.
As to the frequency,
refer to the Pin No.2
(KV).
Input Voltage Output Frequency
0.250V
130.8Hz (C2)
0.500V 261.6Hz (C3)
1.000V
523.2Hz (C4)
2.000V 1046.0Hz (C5)
4.000V 2093.0Hz (C6)
The following wave shape is produced.
11. RT . Circuit for time constant.
t Determines the discharging voltage
level.
12. T1. Input for the comparator.
Input of the wave shape (|\J\J ) is
provided, from the pm no. 14 (TO).
13. Iref . Input of the standard electronic current
14. TO . Output from time constant circuit.
The following wave shape is
produced.
15. VIB . Input for vibrato control wave.
16. Vcc. + 15V input power source.
WSC 1C (IG00158)
1. Vcc
2. SIO
3. TO
4. SL
♦ 15V input power source
Output of the sine wave
Output of triangular wave.
~AA A° p
Input of slice level.
Input of the DC voltage is provided
to the pin for determination of the
inverting level which makes triangular
wave from sawtooth wave.
Triangular wave
—Slice level
:
Sawtooth wave
5. S5. Output of the inverter wave
Output of inverted sawtooth wave is
produced.
/ Sawtooth wave
Inverted sawtooth wave
6. 2TO .Output of double triangle wave
Double triangle wave is produced
from triangle wave.
7. PO . Output of pulse wave.
in.
8. Vee .-15V input power source.
9. PI .Input of pulse wave
Input of sawtooth wave is provided.
hvNJX
rUTTL
10. PWO .Output of OP amplifier.
11. PWI .Input of OP amplifier.
rvw
nuiim
nrlru
Input of the voltage is pro¬
vided for determination of
the sensitivity of PWM lever
so that the pulse width is
changed.
12. 2TI . Input of triangular wave for produc¬
ing double triangular wave shape.
A/V ,T0 '“
double
shape.
wave
13. 5T . Input of the pulse for producing in¬
verted sawtooth wave.
Input of the sawtooth wave
is provided from VCO HI
for producing inverted saw¬
tooth wave shape.*
NN\
14. Tl
Input of the wave is provided for
producing triangular wave shape.
15. STI. Input of the wave for producing sine
wave.
Input of the triangular wave
(TO) is provided for pro¬
ducing sine wave.
16. GND.Earth
KEP-NA80289-78 A
- 8 -