Casio_CTK-330_Service_Manual.pdf

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CTK-330
100 TONES
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
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
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
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
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
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
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
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
ROCK
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
50 RHYTHMS
JAZZ/DANCE
20 BIG BAND
21 SLOW SWING
22 FOX TROT
23 JAZZ WALTZ
24 ACID JAZZ
25 LATIM FUSION
26 TRANCE
27 DISCO
28 RAP
29 FUNK
EUROPEAN/LATIN
30 POLKA
31 MARCH
32 SLOW WALTZ
33 WALTZ
34 TANGO
35 BOSSA NOVA
36 SAMBA
37 MAMBO
38 RHUMBA
39 CHA-CHA-CHA
VARIOUS
40 MERENGUE
41 RAGGAE
42 SKA
43 TEX-MEX
44 FOLKLORE
45 COUNTRY
46 SLOW GOSPEL
47 ADANI
48 BAROQUE
49 ENKA
00
01
02
03
04
05
06
07
08
09
10
20 SONG BANK
SERENADE "EINE KLEINE NACHTMUSIK"
TWINKLE TWINKLE LITTLE STAR
ACH DU LIEBER AUGUSTIN
AMAZING GRACE
ODE TO JOY
LONDON BRIDGE
LONDONDERRY AIR
GREENSLEEVES
AULD LANG SYNE
JOY TO THE WORLD
JINGLE BELLS
11
12
13
14
15
16
17
18
19
O CHRISTMAS TREE
YANKEE DOODLE
SANTA LUCIA
WHEN THE SAINTS GO MARCHING IN
ALOHA OE
SPRING FROM "THE FOUR SEASONS"
LITTLE BROWN JUG
MARCH FROM "THE NUTCRACKER"
THE ENTERTAINER
MULTI FUNCTION DISPLAY
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)
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
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
POWER/MODE
VOLUME
SYNCHRO/ START/
FILL-IN
STOP
TEMPO
0
TONE
TRANSPOSE/
TUNE
1
2
3
4
SONG
BANK
FINGERED
ON
OFF
CASIO CHORD
NORMAL
RHYTHM
5
6
7
8
9
MELODY
ON/OFF
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:
Polyphonic:
Preset tones:
Auto-rhythms:
Accompaniment:
Song bank:
Tuning control:
Built-in speakers:
Terminals:
Power source:
49
12-note
100
50, Tempo control: 40 to 255
Casio Chord, Fingered
20-tune
440 Hz
±
50 cents
4 inch dia. 2 W input rating: 2 pcs
Stereo standard Jack (Output impedance: 100 ohm, Output voltage: 3 V (rms)
MAX
2-way AC or DC source
AC: AC adapter
DC: 6 AA size dry batteries
7.2 W
988
×
311
×
125 mm (38-15/16
×
12-1/4
×
4-15/16 inches)
3.5 kg (7.7 lbs) excluding batteries
Power consumption:
Dimensions(HWD):
Weight:
ELECTRICAL
Current drain with 9 V DC:
No sound output
Maximum volume
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
Sound Pressure (at 10 cm away from speaker):
with key E3 pressed in Synth-Lead 1
Minimum operating voltage:
120 mA
±
30%
650 mA
±
30%
80 mV
±
30%
100 dB
±
10 dB
6.0 V
—2—
BLOCK DIAGRAM
LED
La ~ Lg,
Lp
CC1 ~ CC3
KO8 ~
KO11
Buttons
Output
KI0 ~ KI7
Power Amp.
LA4598
IC101
Filter (L)
Q105
Keyboard
CPU
MSM 6755B-08
LSI101
—3—
Filter (R)
Q106
VC
AVDD DVDD LVDD
APO
Power Supply Circuit
Q101 ~ Q104, D106
KO0 ~ KO7
DC+9V IN
Q111
Reset IC
IC102
Oscillator
X101, Q107
CIRCUIT DESCRIPTION
KEY MATRIX
KI0
KO0
KO1
KO2
KO3
KO4
KO5
KO6
KO7
KO8
KO9
KO10
KO11
C2
C#2
D2
D#2
E2
F2
F#2
G2
0
5
Tone
KI1
G#2
A2
A#2
B2
C3
C#3
D3
D#3
1
6
Rhythm
KI2
E3
F3
F#3
G3
G#3
A3
A#3
B3
2
7
Song
Bank
KI3
C4
C#4
D4
D#4
E4
F4
F#4
G4
3
8
Melody
On/Off
Fingered
CASIO
Chord
Normal
Power Off
KI4
G#4
A4
A#4
B4
C5
C#5
D5
D#5
4
9
KI5
E5
F5
F#5
G5
G#5
A5
A#5
B5
Start/Stop
Tempo
Down
Tempo
Up
Volume
Down
Volume
Up
Synchro/
Fill-In
KI6
C6
KI7
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.
1 ~ 29
30
31
32, 33
34
35
36
37
38
39
40
41
42, 43
44
45
46
47
48
49
50
51
52
53
54
55, 56
57
58 ~ 65
66 ~ 73
74 ~ 77
78
79
80 ~ 82
83 ~ 87
88 ~ 95
96
97 ~ 100
Terminal
MA14 ~ NC2
DGND
DVCC
XTLO, XTLI
NC3
RSTB
P24/RXD
P25/TXD
NMI
APO
NC4
REFH
NC5, NC6
DAOR
NC7
AVdac
DAOL
REFL
AGdac
AGadc
ANI
AVadc
NC8
MOD0
MOD1, MOD2
KO9/P40
KI0/P30 ~ KI7/P37
KO1/P50 ~ KO8/P57
P20 ~ P23
NC9
LVCC
CC1 ~ CC3
—
La ~ Lg, Lp
LGND
—
In/Out
—
In
In
In/Out
—
In
—
—
In
Out
—
Out
—
Out
—
In
Out
Out
In
In
—
In
—
In
In
In
In
Out
Out
—
In
Out
—
Out
In
—
Function
Not used.
Ground (0 V) source
+5 V source
20 MHz clock input/output
Not used. Connected to ground.
Reset signal input
Not used. Connected to +5 V.
Not used.
Power on signal input. Connected to +5 V.
APO (Auto Power Off) signal output
Not used.
Terminal for the built-in DAC
Not used.
Right channel sound waveform output
Not used.
+5 V source for the built-in DAC and ADC
Left channel sound waveform output
Terminal for the built-in DAC and ADC
Ground source for the built-in DAC
Ground source for the built-in ADC
Not used. Connected to ground.
+5 V source for the internal ADC
Not used. Connected to +5 V.
Mode selection terminal
Mode selection terminal
APO cancelation signal input
Terminals for key/button input signal
Terminals for key scan signal
Terminals for button scan signal
Not used.
+5 V source
LED common signal output
Not used.
LED segment signal output
Ground (0 V) source
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
CPU
MSM6755B-08
—3—

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