Casio CTK-485 User Manual

CTK-485

INDEX

PIANO

ORGAN

00 PIANO 1

10

01 PIANO 2

11
12

02 HONKY-TONK

STUDIO PIANO

13

03
04 ELEC PIANO 1

14

05 ELEC PIANO 2

15 PIPE ORGAN

06 ELEC PIANO 3

16
17 ACCORDION

07 ELEC PIANO 4

18

HARPSICHORD

08
09 CLAVI

19 HARMONICA

00-19 POPS
POPS/BALLAD/16 BEAT/8 BEAT
20-39 ROCK
SLOW ROCK/SOFT ROCK/SOUL/ROCK/R&B
40-49 JAZZ
BIG BAND/SWING/JAZZ/FUSION
50-59 DANCE
CLUB/TECHNO/DISCO/RAP/FUNK

100 SONG BANK KEYBOARD

SONG BANK CONTROLLER

ELEC ORGAN 1
ELEC ORGAN 2
ELEC ORGAN 3
ELEC ORGAN 4
CHURCH ORGAN

REED ORGAN
BANDONEON

GUITAR/BASS

STRINGS/ENSEMBLE

20 GUT GUITAR

30 VIOLIN

21

31 CELLO

ACOUS GUITAR

22 JAZZ GUITAR

32 HARP

23 ELEC GUITAR

33 STRINGS 1

24 MUTE GUITAR

34 STRINGS 2

25 DIST GUITAR

35 STRINGS 3

26 WOOD BASS

36 SYNTH-STR 1

27 ELEC BASS

37 SYNTH-STR 2

28 SLAP BASS

38 CHOIR

29 BANJO

39 VOICE DOO

100 RHYTHMS

60-69 EUROPEAN
POLKA/MARCH/WALTZ/TANGO
70-84 LATIN
BOSSA NOVA/SAMBA/MAMBO/RHUMBA/REGGAE
85-99 VARIOUS
COUNTRY/GOSPEL/ETC.

BRASS

40 TRUMPET
41 TUBA
42 BRASS ENS
43 FR. HORN 1
44 FR. HORN 2
45 BRASS 1
46 BRASS 2

SYN-BRASS 1

47
48

SYN-BRASS 2

49

SYN-BRASS 3

100 TONES

REED/PIPE

50

SOPRANO SAX
51 ALTO SAX
52 TENOR SAX
53 OBOE
54 CLARINET
55 PICCOLO
56 FLUTE
57 RECORDER
58 PAN FLUTE
59 WHISTLE

ON
OFF

POWER/MODE

SYNTH-SOUND 1

60 SYN-LEAD 1
61 SYN-LEAD 2
62 SYN-LEAD 3

SYN-CALLIOPE

63
64 SYN-PAD 1
65 SYN-PAD 2
66 SYN-PAD 3

BOWED GLASS

67
68

COUNTRY FARM

69 SYN-BASS

FINGERED
CASIO CHORD
NORMAL

SYNTH-SOUND 2

70 RAIN DROP

COSMIC SOUND

71
72

SOUND TRACK
73 SPACE PAD
74 VOICE BASS
75 APPLAUSE
76 SYNTH-SFX
77 VEHICLE
78 PHONE
79 FUNNY

LAYER

SPLIT/PERCUSSIVE

80 STR PIANO

90 BASS/PIANO

BASS/E. PIANO

81 STR E. PIANO

91
92 BASS/VIB

82 CHOIR E. P

CHOIR ORGAN

BASS/GUT GTR

93

83
84 STR GUITAR

94 V.BASS/DOO

85 STR HARP

95 STR/PIANO

STR/TRUMPET

86 BRASS STR

96
97 VIBRAPHONE

87 VIB PAD

98 MARIMBA

88 12 STR GTR

99 PERCUSSION

89 CHOIR STR

SYNCHRO/

VOLUME

START/

TEMPO

FILL-IN

¢

¢

STOP

⁄

⁄

TRANSPOSE/TUNE

ELECTRONIC KEYBOARD

MULTI FUNCTION DISPLAYMULTI FUNCTION DISPLAY

09 CROCODILE ROCK

HOW DEEP IS YOUR LOVE

00

10 SAVING ALL

01 IN THE MOOD

MY LOVE FOR YOU

A WHOLE NEW WORLD

02

THE GIRL FROM IPANEMA

11

03 WHEN YOU WISH

12 YESTERDAY

UPON A STAR

ANOTHER DAY IN PARADISE

13

04 SUPERSTITION

14

HAPPY BIRTHDAY TO YOU

05 I JUST CALLED

15 WE WISH YOU

TO SAY I LOVE YOU

A MERRY CHRISTMAS

06 TOP OF THE WORLD

16 JINGLE BELLS

07 KILLING ME SOFTLY

17 SILENT NIGHT

WITH HIS SONG

18 WHEN THE SAINTS

08

ALWAYS ON MY MIND

GO MARCHING IN

051627384

19 O CHRISTMAS TREE
20 GREENSLEEVES
21 AMAZING GRACE
22 AULD LANG SYNE
23 TWINKLE TWINKLE

LITTLE STAR

24 LIGHTLY ROW

ACH DU LIEBER AUGUSTIN

25
26 LONDON BRIDGE
27 J'AI PERDU LE DO
28 BATTLE HYMN

OF THE REPUBLIC

29

SUR LE PONT D'AVIGNON

9

TONE LEFT

+

– RHYTHM

100 SONG BANK

GRANDFATHER'S CLOCK

30

WORKING ON THE RAILROAD

31
32 LITTLE BROWN JUG
33 LONG LONG AGO
34 MICHAEL
35 DOMINIQUE
36 DANNY BOY
37 ANNIE LAURIE
38 ALOHA OE
39 MY BONNIE
40 CLAP YOUR HANDS
41

MY DARLING CLEMENTINE

42

SHE WORE A YELLOW RIBBON

SONG
BANK

TRANSPOSE/

TUNE

43

HOUSE OF THE RISING SUN
44 AURA LEE
45 JAMAICA FAREWELL
46 JOHNNY COMES

MARCHING HOME
47 CAMPTOWN RACES
48 SWANEE RIVER

JEANNIE WITH

49

THE LIGHT BROWN HAIR
50 YANKEE DOODLE
51 RED RIVER VALLEY
52

MY OLD KENTUCKY HOME
53 HOME ON THE RANGE

SONG BANK CONTROLLER

ON/OFF RIGHT

STOP PLAY/

79 HABANERA "CARMEN"

54 HOLDIRIDIA
55 SANTA LUCIA

80 L'ARLESIENNE SUITE

1er PRELUDE

56 LA CUCARACHA
57 LA PALOMA

81 JOY TO THE WORLD

58 CIELITO LINDO

82 SYMPHONY no.101

59 KATIUCHA

"CLOCK" 2nd Mov.

60 TROIKA

83 SPRING

61 SZTA DZIE WECZKA

"THE FOUR SEASONS"

84

62

POLKA "THE BARTERED BRIDE"

THAIS MEDITATION

85 MINUET (J.S.BACH)

63 WALTZING MATILDA

86 GAVOTTE (GOSSEC)

64 AJO MAMMA

87 CANON (PACHELBEL)

65 RASA SAYANG

88

66

NŁ

(KANG DING QING GE)

LARGO (HANDEL)

67 ODE TO JOY

89 AMERICAN PATROL

68

BRIDAL MARCH "LOHENGRIN")

90 CHOPSTICKS
91 PIANO SONATA op.13

69 AIR "SUITE no.3"
70

LE CYGNE

"PATHETIQUE" 2nd Mov.

92

"LE CARNAVAL DES ANIMAUX"

FUR ELISE

93

71 SWAN LAKE

TURKISH MARCH (MOZART)

72

MARCH "THE NUTCRACKER"

94

PIANO SONATA K.545 1st Mov.

73

BRINDISI "LA TRAVIATA"

95 WEDDING MARCH

74

TRIUMPHAL MARCH "AIDA"

(MENDELSSOHN)

96 HUNGARIAN DANCE no.5

75 LA DONNA É MOBILE

97 THE ENTERTAINER

76 TOY SYMPHONY
77

98 NOCTURNE op.9 no.2

SERENADE

(CHOPIN)

"EINE KLEINE NACHTMUSIK"

99 VALSE op.64 no.1

78

CHANSON DU TOREADOR

"PETIT CHIEN"

"CARMEN"

PAUSE

CTK-485

CONTENTS

Page

Specifications............................................................................................................................................ 1

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

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

Troubleshooting ........................................................................................................................................ 8

Adjustment ................................................................................................................................................ 9

Major Waveforms .................................................................................................................................... 10

Printed Circuit Boards ............................................................................................................................. 11

Schematic Diagrams ............................................................................................................................... 13

Exploded View ........................................................................................................................................ 16

Parts List ................................................................................................................................................. 17

SPECIFICATIONS

GENERAL

Model: CTK-485
Keyboard: 61 standard-size keys, 5 octaves
Tones: 100
Polyphony: 12 notes maximum (6 for certain tones)
Auto accompaniment

Rhythm Patterns: 100
Tempo: Variable (236 steps, = 20 to 255)
Chords: 2 fingering methods (CASIO CHORD, FINGERED)
Rhythm controller: START/STOP, SYNCHRO/FILL-IN

Song Bank

Tunes: 100
Controllers: PLAY/PAUSE, STOP, LEFT (ON/OFF), RIGHT (ON/OFF)

Multi function display

Name display: TONE, RHYTHM, SONG BANK name/number, keyboard settings name/

value

Tempo: Tempo value, metronome, synchro standby, beat indicator

Other functions

Transpose: 12 steps (–6 semitones to +5 semitones)
Tuning: Variable (A4 = approximately 440 Hz ± 50 cents)
Volume: 0 to 9 (10 steps)

Terminals

Phones/output terminal: Stereo standard jack

Output Impedance: 70 Ω
Output Voltage: 2.4 V (RMS) MAX

Power supply terminal: 9 V DC

Power supply: Dual power supply system

Batteries: 6 AA-size batteries
Battery life: Approximately 2 hours (SUM-3/R6P)/4 hours (AM3/LR6)
AC adaptor: AD-5
Auto power off: Turns power off approximately 6 minutes after last key operation. Enabled

under battery power only, can be disabled manually.
Speaker output: 2.0 W + 2.0 W
Power consumption: 9 V . . . 7.0 W
Dimensions (HWD): 91.0 × 32.2 × 9.0 cm (35 7/8 × 12 11/16 × 3 9/16 inches)
Weight: Approximately 4.0 kg (8.8 lbs) (without batteries)

— 1 —

ELECTRICAL

Current drain with 9 V DC:

No sound output 137 mA ± 20 %

Maximum volume 710 mA ± 20 %

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

Speaker output level (Vrms with 40 Ω load each channel):

with key A1 pressed in Synth-Lead 1 L-ch:1,260 mV ± 20%

R-ch:1,200 mV ± 20%

Phone output level (Vrms with 8 Ω load each channel):

with key A2 pressed in Synth-Lead 1 L-ch: 93 mV ± 20%

R-ch: 90 mV ± 20%

Minimum operating voltage: 6.0 V

— 2 —

CPU

MSM 6755B-17

LSI1

Keyboard

Buttons

LCD

LCD Driver

KS0066U-10B

LSI3

Reset IC

IC1

Power

Switch

Oscillator

X1, Q1

Power Supply Circuit

Q101 ~ Q104, D205

Power Amp.

LA4598

IC101

Filter (L)

Q106

Filter (R)

Q107

Phones/Output

Speaker (L)

Speaker (R)

VC VCC DVDD AVDD

APO

MD0 ~ MD7

MA0 ~ MA18

DC + 9 V IN

DB4 ~ DB7

COM1 ~ COM14

SEG1 ~ SEG40

RS

R/W

E

KO8 ~

KO12

KI0 ~ KI6

KI0 ~ KI7

KO0 ~ KO7

ROM(2M-bit)

LC372100PM-

H78

LSI2

BLOCK DIAGRAM

— 3 —

CIRCUIT DESCRIPTION

KEY MATRIX

KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7
KO0 C1 G#1 E2 C3 G#3 E4 C5 G#5
KO1 C#1 A1 F2 C#3 A3 F4 C#5 A5
KO2 D1 A#1 F#2 D3 A#3 F#4 D5 A#5
KO3 D#1 B1 G2 D#3 B3 G4 D#5 B5
KO4 E1 C2 G#2 E3 C4 G#4 E5 C6
KO5 F1 C#2 A2 F3 C#4 A4 F5
KO6 F#1 D2 A#2 F#3 D4 A#4 F#5
KO7 G1 D#2 B2 G3 D#4 B4 G5
KO8 — + 0 Tempo ▼ Tempo ▲ Volume ▼ Volume ▲

KO9 3 2 1 Start/Stop

KO10 6 5 4 Song Bank Rhythm Tone

Transpose/

Tune

KO11 9 8 7 Fingered Normal

Synchro/

Fill in

Casio

Chord

Power

KO12 Right Play/Pause Stop Left

NOMENCLATURE OF KEYS

C#2

C2 D2E2F2G2A2 B2 C3 D3

F#2D#2

C#3A#2G#2

F#3 G#3

D#3

E3

F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5

A#3 C#4 D#4

F#4 G#4

A#4

C#5

D#5

F#5 G#5

A#5

C#6

C6

off

G#6F#6D#6

A#6

B6A6G6F6E6D6

C7

— 4 —

CPU (LSI1: MSM6755B-17)

The CPU reads sound data from the ROM in accordance with the pressed key and the selected tone; the CPU
can read rhythm data simultaneously when a rhythm pattern is selected. Then it provides the left and the right
channels’ waveforms separately, by converting the data into the waveforms with two built-in DACs. The CPU
also controls key and button input. The following table shows the pin functions of LSI1.

Pin No. Terminal In/Out Function

1 MA14 Out Address bus

2, 3 NCO — Not used

4 ~ 19 MA0 ~ MA13 Out Address bus

13 MRDB Out Read enable signal
17 MCSB — Not used

20 ~ 27 MD0 ~ MD7 In/Out Data bus

28, 29 NC1, 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
35 RSTB In Reset signal input

36, 37 P24/RXD, 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 internal 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 internal DAC
47 DAOL Out Left channel sound waveform output
48 REFL Out Terminal for the internal DAC and ADC
49 AGdac In Ground source for internal DAC
50 AGadc In Ground source for internal ADC
51 ANI In APO cancellation signal
52 AVadc In +5 V source for the internal ADC
53 NC8 — Not used
54 MOD0 In Mode selection terminal. Connected to +5 V.

55, 56 MOD1, MOD2 In Mode selection terminal. Connected to ground.

57 P40 — Not used
58 ~ 65 KI0/P30 ~ KI7/P37 In Terminals for key/button input signal
66 ~ 73 KO0/P50 ~ KO7/P57 Out Terminals for key scan signal
74 ~ 77 DB4 ~ DB7 Out Data bus for the LCD driver

78 NC9 — Not used

79 LVCC In +5 V source

— 5 —

Pin No. Terminal In/Out Function

80 ~ 84 KO8 ~ KO12 Out Terminals for button scan signal
85 ~ 87 P65 ~ P67 — Not used

88 RS Out Control signal for the LCD driver
89 R/W Out Read/Write signal for the LCD driver
90 E Out Chip enable signal for the LCD driver

91 ~ 95 P73 ~ P77 — Not used

96 LGND In Ground source

97, 100 MA18, MA15 Out Address bus

LCD DRIVER (LSI3: KS0066U-10B)

The LCD driver can drive a dot matrix LCD having 40 segment and 16 common lines. The LSI contains 240
graphic symbols in the built-in character generator ROM, and stores 80 characters in the built-in display data
RAM. In accordance with command from the CPU, the LSI is capable of displaying up to 16 characters
simultaneously. The following table shows the pin functions of LSI3.

Pin No. Terminal In/Out Function

1 ~ 22,

63 ~ 80

23 VSS — GND (0 V) source

24, 25 OSC1, OSC2 In/Out

26 ~ 30 V1 ~ V5 In Those voltages are used for generating the stepped pulse of

31, 32 LP, XCLS — Not used

33 VDD In DVDD (+5 V) source

34, 35 FR, DO — Not used

36 RS In

37 R/W In Read/Write terminal. High: read, Low: write

38 E In High: enable, the writing is done at fall edge.

39 ~ 42 DB0 ~ DB3 — Not used. Connected to GND (0 V)
43 ~ 46 DB4 ~ DB7 In/Out Data bus
47 ~ 62 COM1 ~ COM16 Out Common signal/output

SEG1 ~ SEG40 Out Segment signal output

Terminals for the built-in clock pulse generator. The external
resistor connected determines the oscillation frequency.

LCD drive voltage input.

the LCD drive signals.

Data/command determination terminal.
High: data, Low: command

Chip enable signal.

Low: disenable

— 6 —

FILTER BLOCK

Since the sound signals from the CPU is stepped waveforms, the filter block is added to smooth the waveforms.

Amp.

LA4598

Filter

Block

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

CPU

MSM6755B-17

— 7 —

INITIAL RESET CIRCUIT

When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU.
The CPU then initializes its internal circuit.

Battery Set

VDD

Nature of Trouble

No power

Reset IC

RN5VD40A

IC1

RESET

TROUBLESHOOTING

Faulty Block

Power supply circuit

Power switch

CPU

MSM 6755B-17

LSI1

Cause/Remedy

Faulty IC101. Replace IC101.
Faulty D104 ~ D106. Replace D104 ~

D106.
Faulty Q101 ~ Q104. Replace Q101 ~

Q104.
Poor contact. Clean the contacts.

No sound at all

Certain keys or switches do
not function

A certain key or switch does
not function

Power jack (J101)

Power Amp (IC101: LA4596)
CPU (LSI1: MSM6755B-17)
Oscillator

Key and switch matrix

CPU (LSI1: MSM6755B-17)
Key and switch matrix

Open J101 or poor soldering. Replace
J101 or resolder.

Open or shorted IC101. Replace IC101.
Faulty LSI1. Replace LSI1.
Faulty Q1. Replace Q1.

Open X1. Replace X1.
Open circuit on KO or KI line.Replace

keyboard PCB assembly.
Faulty LSI1. Replace LSI1.
Dust on the contact.

— 8 —

MAIN PCB

1) Items to be adjusted:

ADJUSTMENT

Item

Vop voltage setting Voltmeter

2) Adjustment and Test Point Locations

(Top View) (Bottom View)

Measuring Instrument

VR1

TP2

3) Equipment connection/Procedure

Input
Connection

41.20°

LCD

Input
Point

Input
Signal

Eye

Vop voltage setting

Set Voltmeter

Output
TP2

Adjust

VR1 Voltmeter TP2

Watching the LCD at a 41.20° angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.

Output
Connection

Output
Point

Adjust for

Adjust for 4.2 ~ 4.3 V reading
on voltmeter under the tem­perature 20 ~ 25 °C.
Make fine adjustment accord­ing to the following instruc­tion.

— 9 —

MAJOR WAVEFORMS

1ms

CH1

CH2

BWL

CH1 1V 1V

CH2

1

CH1 5V

1 RESET signal

IC 1 pin 1

3

0.1 s

10 µs

BWL

CH1

CH1

2

CH1 1V

2 Main clock pulse

MSM6755B-17 pin 32

5

20 µs

CH1

BWL

1ms

CH1

4

CH1 5V 5V

CH2

3 Key scan signal KO10

MSM6755B-17 pin 72

4 Key scan signal KO11

MSM6755B-17 pin 73

7

8

CH1 1V

CH2 1V

1ms

BWL

BWL

CH2

CH1

CH2

6

CH1 1V 1V

CH2

5 Sound signal output (L-ch)

MSM6755B-17 pin 47

6 Sound signal output (L-ch)

Q106 2SC1740SQ Emitter

9

0

CH2

BWL

7 Sound signal output (R-ch)
8 Sound signal output (R-ch)

MSM6755B-17 pin 44
Q107 2SC1740SQ Emitter

Tone: Flute Ensemble
Key: A3
Volume: 7

— 10 —

9 Sound signal output (R-ch)

LA4598 pin 3

0 Sound signal output (L-ch)

LA4598 pin 12

PRINTED CIRCUIT BOARDS

Main PCB JCM450-MA1M

5

2

7

3

4

Top View

1

Bottom View

— 11 —

Main PCB JCM450-MA2M

6 8 9 10

Keyboard PCB KDM6111K-KY1M

Keyboard PCB KDM6111K-KY2M

— 12 —

Main PCB JCM450-MA1M

SCHEMATIC DIAGRAMS

3

5

4

7

1

2

— 13 —

Main PCB JCM450-MA2M

(0.7 V)

(2.9 V)

(5.3 V)

10

9

6

8

— 14 —

Keyboard PCBs KDM6111K-KY1M/KY2M

— 15 —

Notes:

1. All capacitance values are indicated in "µF" (p=10

-6

µF).

2. All resistance values are indicated in "Ω" (k=103Ω, M=106Ω).

12

EXPLODED VIEW

14

13

9

8

4

17

R-2

R-1

16

15

5

6

19

1

18

2

7

R-6

6

11

3

R-4

R-5

R-5

10

R-6

R-3

— 16 —

PARTS LIST

CTK-485

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

1
2

D1
D101
D102

D103,D104

D106 - D114

D105

IC1

IC101

J101
J102

L102

LED101

LSI1
LSI2
LSI3

Q1 / Q3

Q101

Q102, Q104 - Q107

Q103

Q2

VR1

X1

3
D701 - D725
D731 - D766

4 6926 6790 PANEL/DISPLAY M340785-1 1 C

5

6

7

8

9

10
11
12
13
14
15
16
17
18
19

Main PCB

6926 6310 PCB ASSY/M450-MA1M M240821*1 1 B
6926 6320 PCB ASSY/M450-MA2M M140731*1 1 B
2390 1820 DIODE/CHIP 1SS355TE-17 1 C
2390 3021 DIODE SRT14 1 C
2390 3018 DIODE 1T2 1 C

2390 1344 DIODE 1SS133T-77-T 11 C
2360 1939 DIODE MTZJ5.1CT-77-T 1 C

2012 1883 IC/MOS RN5VD40AA-TR 1 B
2114 2891 IC/LINEAR LA4598 1 B
3501 7049 JACK/POWER HEC2305-01-330 1 C
3612 0665 JACK/PHONE YKB21-5006 1 C
3841 2051 INDUCTOR LAN02TA100J 1 C
2320 3146 LED TLR124 1 C
2012 5603 LSI MSM6755B-17 1 A
2012 5937 LSI LC372100PM-H78TE-L 1 A
2012 5935 LSI KS0066U-10B 1 A
2252 1239 TRANSISTOR 2SC4081T106Q 2 B
2200 2481 TRANSISTOR 2SA854SR-TP-T 1 B
2220 1409 TRANSISTOR 2SC1740SR-TP-T 5 B
2250 1591 TRANSISTOR 2SB1237TV2R 1 B
2250 1162 TRANSISTOR 2SA1576AT106R 1 B
2775 0994 VOLUME/SEMI-FIXED EVND8AA03B53 1 C
2590 2741 OSCILLATOR/CERAMIC CSACV20.00MXJ040-TC 1 C

Console PCB ass'y

6925 1310 PCB ASSY/KY M140402*4 1 B
2301 0101 DIODE 1SS2473 25 C
2301 0101 DIODE 1SS2473 36 C

Mechanical Parts

6909 5890 KNOB CSB-12D 1 C
3831 0665 SPEAKER 10G42AFA 2 B
3335 6677 LCD CA480-TS 1 A
6922 2740 KEY SET/BLACK 10-KEY M111726-1 2 A
6922 2750 KEY SET/BLACK 5-KEY M111726-2 1 A
6922 3990 RUBBER/CONTACT M111764-1 1 B
6922 4000 RUBBER/CONTACT M111765-1 1 B
6921 5030 KNOB/SLIDE M311859-1 1 C
6922 2720 KEY SET/LT-CB WHITE M312118*1 4 A
6922 2730 KEY SET/LT-CB WHITE M312118*2 1 A
6926 6750 RUBBER/BUTTON M340417-4 1 C
6926 6760 RUBBER/BUTTON M340418-3 1 C
6925 9840 COVER/BATTERY M340485*2 1 C
6926 6770 RUBBER/BUTTON M340783-1 1 C
6926 6780 INTERCONNECTOR M440581-1 2 C

Accessary

6916 7880 STAND/MUSIC M310827-1 1 C

Notes: Q – Quantity per unit

R – Rank

— 17 —

CASIO TECHNO CO.,LTD.

Overseas Service Division

8-11-10, Nishi-Shinjuku
Shinjuku-ku, Tokyo 160-0023, Japan