Casio CTK-330 User Manual

CTK-330

PIANO
00

PIANO 1

01

PIANO 2

02

HONKY-TONK

03

STUDIO PIANO

04

ELEC PIANO 1

05

ELEC PIANO 2

06

ELEC PIANO 3

07

ELEC PIANO 4

08

HARPSICHORD

09

CLAVELECTRO

SYNTH-SOUND 2
70

PEAL DROP

71

COSMIC SOUND

72

SOUNDTRACK

73

SPACE PAD

74

SYNTH-SFX

75

SE 1 (VEHICLE)

76

SE 2 (TELEPHONE)

77

SE 3 (SPACE)

78

SE 4 (INVADER)

79

SE 5 (FUNNY)

GUITAR/BASS
20

GUT GUITAR

21

ACOUS GUITAR

22

JAZZ GUITAR

23

ELEC GUITAR

24

MUTE GUITAR

25

DIST GUITAR

26

WOOD BASS

27

ELEC BASS

28

SLAP BASS

29

BANJO

SPLIT/PERCUSSION
90

BRASS/PIANO

91

BRASS/E.PIANO

92

BRASS/VIB

93

BRASS/G.GUITAR

94

BRASS/D.GUITAR

95

STRINGS/PIANO

96

STRINGS/TRUMPET

97

VIBRAPHONE

98

MARIMBA

99

PERCUSSION

100 TONES

STRINGS/ENSEMBLE
30

VIOLIN

31

CELLO

32

HARP

33

STRINGS 1

34

STRINGS 2

35

STRINGS 3

36

SYNTH-STR 1

37

SYNTH-STR 2

38

CHIOR

39

VOICE

POWER/MODE

ON

OFF

BRASS
40

TRUMPET

41

TUBA

42

BRASS SECTION

43

FRENCH HORN 1

44

FRENCH HORN 2

45

BRASS 1

46

BRASS 2

47

SYNTH-BRASS 1

48

SYNTH-BRASS 2

49

SYNTH-BRASS 3

FINGERED
CASIO CHORD
NORMAL

REED/PIPE
50

SOPRANO SAX

51

ALTO SAX

52

TENOR SAX

53

OBOE

54

CLARINET

55

PICCORO

56

FLUTE

57

RECORDER

58

FLUTE ENSEMBLE

59

WHISTLE

VOLUME SYNCHRO/

SYNTH-SOUND 1
60

SYNTH-LEAD 1

61

SYNTH-LEAD 2

62

SYNTH-LEAD 3

63

SYNTH-CALLIOPE

64

SYNTH-PAD 1

65

SYNTH-PAD 2

66

SYNTH-PAD 3

67

GRASS HARMONICA

68

COUNTRY FARM

69

SYNTH-BASS

START/

TEMPO

FILL-IN

STOP

TRANSPOSE/
TUNE

TONE

RHYTHM

ORGAN
10

ELEC ORGAN 1

11

ELEC ORGAN 2

12

ELEC ORGAN 3

13

ELEC ORGAN 4

14

CHURCH ORGAN

15

PIPE ORGAN

16

REED ORGAN

17

ACCORDION

18

BANDONEON

19

HARMONICA

LAYER
80

STRINGS PIANO

81

STRINGS EP

82

CHOIR EP

83

CHOIR ORGAN

84

STRINGS GUITAR

85

STRINGS HARP

86

BRASS STRINGS

87

VIB PAD

88

12 STR GUITAR

89

CHOIR STRINGS

ELECTRIONIC KEYBOARD

MULTI FUNCTION DISPLAY

0

516273849

POPS
00

POP FUSION

01

BALLAD

02

POP BALLAD

03

RAP POP

04

SOUL BALLAD

05

FUNKY POP

06

16 BEAT

07

8 BEAT 1

08

8 BEAT 2

09

POPS

SONG
BANK

MELODY
ON/OFF

50 RHYTHMS 20 SONG BANK

ROCK

JAZZ/DANCE

EUROPEAN/LATIN

10

ROCK WALTZ

11

SLOW ROCK

12

SOFT ROCK 1

13

SOFT ROCK 2

14

FOLKIE POP

15

60' S SOUL

16

ROCK

17

HEAVY METAL

18

50'S ROCK

19

CHICAGO BLUES

20
21
22
23
24
25
26
27
28
29

BIG BAND
SLOW SWING
FOX TROT
JAZZ WALTZ
ACID JAZZ
LATIM FUSION
TRANCE
DISCO
RAP
FUNK

30
31
32
33
34
35
36
37
38
39

POLKA
MARCH
SLOW WALTZ
WALTZ
TANGO
BOSSA NOVA
SAMBA
MAMBO
RHUMBA
CHA-CHA-CHA

VARIOUS
40
41
42
43
44
45
46
47
48
49

MERENGUE
RAGGAE
SKA
TEX-MEX
FOLKLORE
COUNTRY
SLOW GOSPEL
ADANI
BAROQUE
ENKA

00

SERENADE "EINE KLEINE NACHTMUSIK"

01

TWINKLE TWINKLE LITTLE STAR

02

ACH DU LIEBER AUGUSTIN

03

AMAZING GRACE

04

ODE TO JOY

05

LONDON BRIDGE

06

LONDONDERRY AIR

07

GREENSLEEVES

08

AULD LANG SYNE

09

JOY TO THE WORLD

10

JINGLE BELLS

O CHRISTMAS TREE

11

YANKEE DOODLE

12
13

SANTA LUCIA

14

WHEN THE SAINTS GO MARCHING IN

15

ALOHA OE

16

SPRING FROM "THE FOUR SEASONS"

17

LITTLE BROWN JUG

18

MARCH FROM "THE NUTCRACKER"

19

THE ENTERTAINER

CTK-330

CONTENTS

Specifications .......................................................................................................................... 2

Block Diagram......................................................................................................................... 3

Circuit Description ................................................................................................................... 4

Major Waveforms .................................................................................................................... 7

Schematic Diagrams ...............................................................................................................8

Printed Circuit Board .............................................................................................................10

Exploded View ...................................................................................................................... 11

Parts List ............................................................................................................................... 13

SPECIFICATIONS

GENERAL

Number of keys: 49
Polyphonic: 12-note
Preset tones: 100
Auto-rhythms: 50, Tempo control: 40 to 255
Accompaniment: Casio Chord, Fingered
Song bank: 20-tune
Tuning control: 440 Hz ± 50 cents
Built-in speakers: 4 inch dia. 2 W input rating: 2 pcs
Terminals: Stereo standard Jack (Output impedance: 100 ohm, Output voltage: 3 V (rms)

MAX

Power source: 2-way AC or DC source

AC: AC adapter

DC: 6 AA size dry batteries
Power consumption: 7.2 W
Dimensions(HWD): 988 × 311 × 125 mm (38-15/16 × 12-1/4 × 4-15/16 inches)
Weight: 3.5 kg (7.7 lbs) excluding batteries

ELECTRICAL

Current drain with 9 V DC:

No sound output 120 mA ± 30%
Maximum volume 650 mA ± 30%

with white keys C1 to G2 pressed in Synth-Lead 1
Volume: 9

Phone output Level (Vrms with 8 ohm load each channel):

with key E3 pressed in Synth-Lead 1 80 mV ± 30%

Sound Pressure (at 10 cm away from speaker):

with key E3 pressed in Synth-Lead 1 100 dB ± 10 dB

Minimum operating voltage: 6.0 V

— 2 —

BLOCK DIAGRAM

— 3 —

Output

Power Amp.

LA4598

IC101

VC  AVDD DVDD LVDD

Power Supply Circuit

Q101 ~ Q104, D106

DC+9V IN

Q111

Filter (L)

Q105

Filter (R)

Q106

APO

CC1 ~ CC3

LED

MSM 6755B-08

La ~ Lg,
Lp

CPU

LSI101

KO8 ~
KO11

Buttons

KI0 ~ KI7

Keyboard

KO0 ~ KO7

Reset IC

IC102

Oscillator

X101, Q107

CIRCUIT DESCRIPTION

KEY MATRIX

KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7

KO0 C2 G#2 E3 C4 G#4 E5 C6

KO1 C#2 A2 F3 C#4 A4 F5

KO2 D2 A#2 F#3 D4 A#4 F#5

KO3 D#2 B2 G3 D#4 B4 G5

KO4 E2 C3 G#3 E4 C5 G#5

KO5 F2 C#3 A3 F4 C#5 A5

KO6 F#2 D3 A#3 F#4 D5 A#5

KO7 G2 D#3 B3 G4 D#5 B5

KO8 0 1 2 3 4 Start/Stop

KO9 56789

KO10 Tone Rhythm

Song

Bank

Melody

On/Off

KO11 Fingered

Tempo

Down

CASIO

Chord

Tempo UpVolume

Volume

Down

Normal Power Off

NOMENCLATURE OF KEYS

C#2 D#2 F#2 G#2 A#2 C#3 D#3 F#3 G#3 A#3 C#4 D#4 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5

Up

Synchro/

Fill-In

C2

D2 E2 F2 G2 A2 B2 C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6

— 2 —

CPU (LSI101: MSM6755B-06)

The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides left and right
channel sound waveforms in accordance with the pressed key and the selected tone.
The following table shows the pin functions of LSI101.

Pin No. Terminal In/Out Function

1 ~ 29 MA14 ~ NC2 — Not used.

30 DGND In Ground (0 V) source
31 DVCC In +5 V source

32, 33 XTLO, XTLI In/Out 20 MHz clock input/output

3 4 NC3 — Not used. Connected to ground.
35 RSTB In Reset signal input
3 6 P24/RXD — Not used. Connected to +5 V.
3 7 P25/TXD — Not used.
38 NMI In Power on signal input. Connected to +5 V.
39 APO Out APO (Auto Power Off) signal output
4 0 NC4 — Not used.
41 REFH Out Terminal for the built-in DAC

42, 43 NC5, NC6 — Not used.

4 4 DAOR Out Right channel sound waveform output
4 5 NC7 — Not used.
46 AVdac In +5 V source for the built-in DAC and ADC
47 DAOL Out Left channel sound waveform output
4 8 REFL Out Terminal for the built-in DAC and ADC
49 AGdac In Ground source for the built-in DAC
50 AGadc In Ground source for the built-in ADC
5 1 ANI — Not used. Connected to ground.
52 AVadc In +5 V source for the internal ADC
5 3 NC8 — Not used. Connected to +5 V.
54 MOD0 In Mode selection terminal

55, 56 MOD1, MOD2 In Mode selection terminal

57 KO9/P40 In APO cancelation signal input
58 ~ 65 KI0/P30 ~ KI7/P37 In Terminals for key/button input signal
66 ~ 73 KO1/P50 ~ KO8/P57 O ut Terminals for key scan signal
74 ~ 77 P20 ~ P23 Out Terminals for button scan signal

7 8 NC9 — Not used.

79 LVCC In +5 V source
80 ~ 8 2 CC1 ~ CC3 Out LED common signal output
83 ~ 87 — — Not used.
88 ~ 95 La ~ Lg, Lp Out LED segment signal output

96 LGND In Ground (0 V) source

97 ~ 100 — — Not used.

FILTER BLOCK

Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform.

Amp.

LA4598

Filter

Block

— 3 —

CPU

MSM6755B-08

POWER AMPLIFIER (IC101: LA4598)

The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC101.

Pin No. Terminal In/Out Function

1 Power GND In Ground (0 V) source

2 Ch1 B.S. — Terminal for a bootstrap capacitor

3 Ch1 OUT Out Channel 1 output

4 VCC In +9 V source

5 Ch1 N.F. In Negative feedback input

6 Ch1 IN In Channel 1 input

7 D.C. — Terminal for a decoupling capacitor

8 Pre GND In Ground (0 V) source

9 Stand by In Power control signal input. 0 V: Off, +9 V: On

10 Ch2 IN In Channel 2 input
11 Ch2 N.F. In Negative feedback input
12 Ch2 OUT Out Channel 2 output
13 Ch2 B.S. — Terminal for a bootstrap capacitor
14 NC — Not used

LED DRIVING

Q106~Q108
LED Driver

LVDD

La~Lg, Lp

CPU

LSI101

MSM6755B

CC1~CC3

— 4 —

CPU (LSI101: MSM6755B-06)

The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides left and right
channel sound waveforms in accordance with the pressed key and the selected tone.
The following table shows the pin functions of LSI101.

Pin No. Terminal In/Out Function

1 ~ 29 MA14 ~ NC2 — Not used.

30 DGND In Ground (0 V) source

31 DVCC In +5 V source

32, 33 XTLO, XTLI In/Out 20 MHz clock input/output

3 4 NC3 — Not used. Connected to ground.

35 RSTB In Reset signal input

3 6 P24/RXD — Not used. Connected to +5 V.

3 7 P25/TXD — Not used.

38 NMI In Power on signal input. Connected to +5 V.

39 APO Out APO (Auto Power Off) signal output

4 0 NC4 — Not used.

41 REFH Out Terminal for the built-in DAC

42, 43 NC5, NC6 — Not used.

4 4 DAOR Out Right channel sound waveform output

4 5 NC7 — Not used.

46 AVdac In +5 V source for the built-in DAC and ADC

47 DAOL Out Left channel sound waveform output

4 8 REFL Out Terminal for the built-in DAC and ADC

49 AGdac In Ground source for the built-in DAC

50 AGadc In Ground source for the built-in ADC

5 1 ANI — Not used. Connected to ground.

52 AVadc In +5 V source for the internal ADC

5 3 NC8 — Not used. Connected to +5 V.

54 MOD0 In Mode selection terminal

55, 56 MOD1, MOD2 In Mode selection terminal

57 KO9/P40 In APO cancelation signal input
58 ~ 65 KI0/P30 ~ KI7/P37 In Terminals for key/button input signal
66 ~ 73 KO1/P50 ~ KO8/P57 O ut Terminals for key scan signal
74 ~ 77 P20 ~ P23 Out Terminals for button scan signal

7 8 NC9 — Not used.

79 LVCC In +5 V source
80 ~ 8 2 CC1 ~ CC3 Out LED common signal output
83 ~ 87 — — Not used.
88 ~ 95 La ~ Lg, Lp Out LED segment signal output

96 LGND In Ground (0 V) source

97 ~ 100 — — Not used.

FILTER BLOCK

Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform.

Amp.

LA4598

Filter

Block

— 5 —

CPU

MSM6755B-08

POWER AMPLIFIER (IC101: LA4598)

The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC101.

Pin No. Terminal In/Out Function

1 Power GND In Ground (0 V) source
2 Ch1 B.S. — Terminal for a bootstrap capacitor

3 Ch1 OUT Out Channel 1 output
4 VCC In +9 V source
5 Ch1 N.F. In Negative feedback input
6 Ch1 IN In Channel 1 input
7 D.C. — Terminal for a decoupling capacitor
8 Pre GND In Ground (0 V) source

9 Stand by In Power control signal input. 0 V: Off, +9 V: On
10 Ch2 IN In Channel 2 input
11 Ch2 N.F. In Negative feedback input
12 Ch2 OUT Out Channel 2 output
13 Ch2 B.S. — Terminal for a bootstrap capacitor
14 NC — Not used

LED DRIVING

Q106~Q108
LED Driver

LVDD

La~Lg, Lp

CPU

LSI101

MSM6755B

CC1~CC3

— 6 —

MAJOR WAVEFORMS

1

1 Clock pulse

MSM6755B-08 pin 32

4

2

3

2 Reset signal

MSM6755B-08 pin 35

3 APO signal

MSM6755B-08 pin 39

6

7

5

4 Sound waveform (R-ch)

MSM6755B-08 pin 44

5 Sound waveform (L-ch)

MSM6755B-08 pin 47

8

9

8 LED common signal CC2

MSM6755B-08 pin 81

9 LED common signal CC3

MSM6755B-08 pin 82

Tone: whistle
Key: A4
Volume:

6 Button scan signal KO10

MSM6755B-08 pin 76

7 Button scan signal KO11

MSM6755B-08 pin 77

— 7 —

Main PCB KDM441-MA1M/MA2M

1

23

5

4

7

6

9

8

SCHEMATIC DIAGRAMS

— 8 —

Keyboard PCBs KDM4910K-KY1M/KY2M

— 9 —

Main PCB KDM441-MA1M

PRINTED CIRCUIT BOARD

4 52316789

— 10 —

EXPLODED VIEW

12

11

13

R-1

4

10

3

9

5

R-2

1

14

8

14

6

R-6

7

2

R-4

R-3

R-5

— 11 —

PARTS LIST

CTK-330

Notes: This parts list does not include the cosmetic parts, which

parts are marked with item No. "R-X" in the exploded
view.
Contact our spare parts department if you need these
parts for refurbish.

1. Prices and specifications are subject to change with­out prior notice.

2. As for spare parts order and supply, refer to the
"GUIDEBOOK for Spare parts Supply", published
seperately.

3. The numbers in item column correspond to the same
numbers in drawing.

Item Code No. Parts Name Specification Q R

Main PCB

1 6925 4480 Main PCB ass'y M441-MA1,2M M140451*1 1 B

LSI101 2012 3948 LSI, CPU MSM6755B-08 1 A

IC101 2114 2891 IC, Amp. LA4598 1 A
IC102 2105 5922 IC RE5VL40AA-TZ 1 A

Q101 2250 0168 Transistor 2SA854SR-TP-T 1 A

Q102, Q105 - Q110, 2220 1387 Transistor 2SC1740SQ-TP-T 8 A

Q112

Q103, Q104 2253 0448 Transistor 2SD1858Q,R-TV6-T 2 A

Q111 2200 2449 Transistor 2SA933SQ-TP-T 1 A
D101 2390 0371 Diode DSK10B-BT-T 1 B
D102 2390 1323 Diode RB100A-T32-T 1 B

D103, D105, 2390 1344 Diode 1SS133T-77-T 23 C

D107 - D127

D106 2360 2002 Diode, Zener MTZJ5.6B-T77-T
D128 2390 2828 Diode RB441Q-40T-77
D133 2360 1715 Diode, Zener MTZJ3.9B-T77-T

LED101 2370 1309 LED LB-603VF1 1 B

X101 2590 1526 Ceramic oscillator EFO-EN2005C4 1 B

J101 3501 7049 Jack, Power HEC2305-01-330
J102 3612 0665 Jack, Phone YKB21-5006 1 C

Keyboard PCB

2 6925 4490 Keyboard PCB ass'y M140449*1 1 C

D701 - D749 2301 0101 Diode 1S2473T-77-T 49 B

Mechanical Parts

3 6922 2720 White key set, LT-CB M312118*1 3
4 6922 2730 White key set, LT-CS
5 6922 2740 Black key set, LT-10P M111726-1 2
6 6922 4000 Key contact rubber, 31-contact M111765-1
7 6923 2390 Key contact rubber, 18-contact M240025-1
8 6925 4500 Battery cover M340528*1

9 6925 4510 Rubber button M240463-1
10 6925 4520 Rubber button M240464-1
11 6909 5890 Slide contact CSB-12D
12 6921 5030 Slide knob M311859-1
13 6925 4530 Display plate M340511-1 1
14 3831 0770 Speaker S10JA13A

Accessory

6916 7880 Music stand M310827-1

M312118*2 1

1
1
1

1

1
1
1B
1
1
1
1

2

1B

B
B
B

B

A
A
A
A
A

B
B
B
B
C
B

Notes: Q – Used quantity

R – Rank

— 13 —

MA0800761A

Aug, 1996