Casio CTK-330 User Manual

CTK-330

100 TONES

PIANO		ORGAN		GUITAR/BASS		STRINGS/ENSEMBLE		BRASS		REED/PIPE				SYNTH-SOUND 1
00	PIANO 1	10	ELEC ORGAN 1	20	GUT GUITAR	30	VIOLIN	40	TRUMPET	50	SOPRANO SAX		60	SYNTH-LEAD 1
01	PIANO 2	11	ELEC ORGAN 2	21	ACOUS GUITAR	31	CELLO	41	TUBA	51	ALTO SAX		61	SYNTH-LEAD 2
02	HONKY-TONK	12	ELEC ORGAN 3	22	JAZZ GUITAR	32	HARP	42	BRASS SECTION	52	TENOR SAX		62	SYNTH-LEAD 3
03	STUDIO PIANO	13	ELEC ORGAN 4	23	ELEC GUITAR	33	STRINGS 1	43	FRENCH HORN 1	53	OBOE		63	SYNTH-CALLIOPE
04	ELEC PIANO 1	14	CHURCH ORGAN	24	MUTE GUITAR	34	STRINGS 2	44	FRENCH HORN 2	54	CLARINET		64	SYNTH-PAD 1
05	ELEC PIANO 2	15	PIPE ORGAN	25	DIST GUITAR	35	STRINGS 3	45	BRASS 1	55	PICCORO		65	SYNTH-PAD 2
06	ELEC PIANO 3	16	REED ORGAN	26	WOOD BASS	36	SYNTH-STR 1	46	BRASS 2	56	FLUTE		66	SYNTH-PAD 3
07	ELEC PIANO 4	17	ACCORDION	27	ELEC BASS	37	SYNTH-STR 2	47	SYNTH-BRASS 1	57	RECORDER		67	GRASS HARMONICA
08	HARPSICHORD	18	BANDONEON	28	SLAP BASS	38	CHIOR	48	SYNTH-BRASS 2	58	FLUTE ENSEMBLE		68	COUNTRY FARM
09	CLAVELECTRO	19	HARMONICA	29	BANJO	39	VOICE	49	SYNTH-BRASS 3	59	WHISTLE		69	SYNTH-BASS
SYNTH-SOUND 2		LAYER		SPLIT/PERCUSSION			POWER/MODE				VOLUME SYNCHRO/ START/			TEMPO
											FILL-IN		STOP
70	PEAL DROP	80	STRINGS PIANO	90	BRASS/PIANO
71	COSMIC SOUND	81	STRINGS EP	91	BRASS/E.PIANO				FINGERED						TONE
72	SOUNDTRACK	82	CHOIR EP	92	BRASS/VIB
73	SPACE PAD	83	CHOIR ORGAN	93	BRASS/G.GUITAR		ON		CASIO CHORD						TRANSPOSE/
74	SYNTH-SFX	84	STRINGS GUITAR	94	BRASS/D.GUITAR				NORMAL						TUNE
75	SE 1 (VEHICLE)	85	STRINGS HARP	95	STRINGS/PIANO		OFF								RHYTHM
76	SE 2 (TELEPHONE)	86	BRASS STRINGS	96	STRINGS/TRUMPET
77	SE 3 (SPACE)	87	VIB PAD	97	VIBRAPHONE
78	SE 4 (INVADER)	88	12 STR GUITAR	98	MARIMBA
79	SE 5 (FUNNY)	89	CHOIR STRINGS	99	PERCUSSION

MULTI FUNCTION DISPLAY

0	1	2	3	4
				SONG
				BANK
				MELODY
				ON/OFF
5	6	7	8	9

				50 RHYTHMS							20 SONG BANK
POPS		ROCK		JAZZ/DANCE		EUROPEAN/LATIN		VARIOUS		00	SERENADE "EINE KLEINE NACHTMUSIK"	11	O CHRISTMAS TREE
00	POP FUSION	10	ROCK WALTZ	20	BIG BAND	30	POLKA	40	MERENGUE	01	TWINKLE TWINKLE LITTLE STAR	12	YANKEE DOODLE
01	BALLAD	11	SLOW ROCK	21	SLOW SWING	31	MARCH	41	RAGGAE	02	ACH DU LIEBER AUGUSTIN	13	SANTA LUCIA
02	POP BALLAD	12	SOFT ROCK 1	22	FOX TROT	32	SLOW WALTZ	42	SKA	03	AMAZING GRACE	14	WHEN THE SAINTS GO MARCHING IN
03	RAP POP	13	SOFT ROCK 2	23	JAZZ WALTZ	33	WALTZ	43	TEX-MEX	04	ODE TO JOY	15	ALOHA OE
04	SOUL BALLAD	14	FOLKIE POP	24	ACID JAZZ	34	TANGO	44	FOLKLORE	05	LONDON BRIDGE	16	SPRING FROM "THE FOUR SEASONS"
05	FUNKY POP	15	60' S SOUL	25	LATIM FUSION	35	BOSSA NOVA	45	COUNTRY	06	LONDONDERRY AIR	17	LITTLE BROWN JUG
06	16 BEAT	16	ROCK	26	TRANCE	36	SAMBA	46	SLOW GOSPEL	07	GREENSLEEVES	18	MARCH FROM "THE NUTCRACKER"
07	8 BEAT 1	17	HEAVY METAL	27	DISCO	37	MAMBO	47	ADANI	08	AULD LANG SYNE	19	THE ENTERTAINER
08	8 BEAT 2	18	50'S ROCK	28	RAP	38	RHUMBA	48	BAROQUE	09	JOY TO THE WORLD
09	POPS	19	CHICAGO BLUES	29	FUNK	39	CHA-CHA-CHA	49	ENKA	10	JINGLE BELLS

CTK-330

ELECTRIONIC KEYBOARD

	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:	120 mA ± 30%
No sound output
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):	80 mV ± 30%
with key E3 pressed in Synth-Lead 1
Sound Pressure (at 10 cm away from speaker):	100 dB ± 10 dB
with key E3 pressed in Synth-Lead 1
Minimum operating voltage:	6.0 V

— 2 —

BLOCK DIAGRAM

LED		Buttons

			La ~ Lg,
Output			Lp
		CC1 ~ CC3	KO8 ~	KI0 ~ KI7
			KO11
		Filter (L)
	Power Amp.	Q105
	LA4598
—	IC101	Filter (R)		Keyboard
3
		Q106
—			CPU
VC	AVDD DVDD LVDD	MSM 6755B-08
		APO	LSI101
Power	Supply Circuit			KO0 ~ KO7
Q101 ~ Q104, D106
DC+9V IN	Q111
		Reset IC	Oscillator
		IC102	X101, Q107

CIRCUIT DESCRIPTION

KEY MATRIX

		KI0	KI1	KI2	KI3	KI4	KI5
	KO0	C2	G#2	E3	C4	G#4	E5
	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	5	6	7	8	9	Tempo
							Down
	KO10	Tone	Rhythm	Song	Melody
				Bank	On/Off
	KO11					Fingered	CASIO
							Chord

KI6 KI7

C6

Tempo	Volume
Up	Up
Volume	Synchro/
Down	Fill-In

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

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
34	NC3	—	Not used. Connected to ground.
35	RSTB	In	Reset signal input
36	P24/RXD	—	Not used. Connected to +5 V.
37	P25/TXD	—	Not used.
38	NMI	In	Power on signal input. Connected to +5 V.
39	APO	Out	APO (Auto Power Off) signal output
40	NC4	—	Not used.
41	REFH	Out	Terminal for the built-in DAC
42, 43	NC5, NC6	—	Not used.
44	DAOR	Out	Right channel sound waveform output
45	NC7	—	Not used.
46	AVdac	In	+5 V source for the built-in DAC and ADC
47	DAOL	Out	Left channel sound waveform output
48	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
51	ANI	—	Not used. Connected to ground.
52	AVadc	In	+5 V source for the internal ADC
53	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	Out	Terminals for key scan signal
74 ~ 77	P20 ~ P23	Out	Terminals for button scan signal
78	NC9	—	Not used.
79	LVCC	In	+5 V source
80 ~ 82	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.			Filter		CPU
LA4598			Block		MSM6755B-	08

— 3 —