Casio CTK-485 User manual

ELECTRONIC KEYBOARD
CTK-485
CTK-485
MULTI FUNCTION DISPLAYMULTI FUNCTION DISPLAY
100 SONG BANK KEYBOARD
SONG BANK CONTROLLER
⁄
POWER/MODE
FINGERED
CASIO CHORD
NORMAL
ON
OFF
SYNCHRO/
FILL-IN START/
STOP TEMPO
TRANSPOSE/TUNE
¢
⁄
VOLUME
¢
0
5
1
6
2
7
3
8
4
9
+
– RHYTHM
TONE LEFT
STOP PLAY/
PAUSE
ON/OFF RIGHT
SONG
BANK
TRANSPOSE/
TUNE
SONG BANK CONTROLLER
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 CLAVI
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 CHOIR
39 VOICE DOO
BRASS
40 TRUMPET
41 TUBA
42 BRASS ENS
43 FR. HORN 1
44 FR. HORN 2
45 BRASS 1
46 BRASS 2
47
SYN-BRASS 1
48 SYN-BRASS 2
49 SYN-BRASS 3
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
SYNTH-SOUND 1
60 SYN-LEAD 1
61 SYN-LEAD 2
62 SYN-LEAD 3
63
SYN-CALLIOPE
64 SYN-PAD 1
65 SYN-PAD 2
66 SYN-PAD 3
67
BOWED GLASS
68 COUNTRY FARM
69 SYN-BASS
SYNTH-SOUND 2
70 RAIN DROP
71
COSMIC SOUND
72 SOUND TRACK
73 SPACE PAD
74 VOICE BASS
75 APPLAUSE
76 SYNTH-SFX
77 VEHICLE
78 PHONE
79 FUNNY
LAYER
80 STR PIANO
81 STR E. PIANO
82 CHOIR E. P
83
CHOIR ORGAN
84 STR GUITAR
85 STR HARP
86 BRASS STR
87 VIB PAD
88 12 STR GTR
89 CHOIR STR
SPLIT/PERCUSSIVE
90 BASS/PIANO
91
BASS/E. PIANO
92 BASS/VIB
93
BASS/GUT GTR
94 V.BASS/DOO
95 STR/PIANO
96
STR/TRUMPET
97 VIBRAPHONE
98 MARIMBA
99 PERCUSSION
100 TONES
55 SANTA LUCIA
56 LA CUCARACHA
57 LA PALOMA
58 CIELITO LINDO
59 KATIUCHA
60 TROIKA
61 SZTA DZIE WECZKA
POLKA "THE BARTERED BRIDE"
62
54 HOLDIRIDIA
100 SONG BANK
63 WALTZING MATILDA
64 AJO MAMMA
65 RASA SAYANG
66
NŁ (KANG DING QING GE)
70 LE CYGNE
"LE CARNAVAL DES ANIMAUX"
71 SWAN LAKE
72
MARCH "THE NUTCRACKER"
73 BRINDISI "LA TRAVIATA"
74 TRIUMPHAL MARCH "AIDA"
75 LA DONNA É MOBILE
76 TOY SYMPHONY
69 AIR "SUITE no.3"
77
SERENADE
"EINE KLEINE NACHTMUSIK"
78 CHANSON DU TOREADOR
"CARMEN"
67 ODE TO JOY
68
BRIDAL MARCH "LOHENGRIN")
80 L'ARLESIENNE SUITE
1er PRELUDE
81 JOY TO THE WORLD
82 SYMPHONY no.101
"CLOCK" 2nd Mov.
83 SPRING
"THE FOUR SEASONS"
THAIS MEDITATION
84
79 HABANERA "CARMEN"
85 MINUET (J.S.BACH)
86 GAVOTTE (GOSSEC)
87 CANON (PACHELBEL)
88
LARGO (HANDEL)
92
93
TURKISH MARCH (MOZART)
94 PIANO SONATA K.545 1st Mov.
95 WEDDING MARCH
(MENDELSSOHN)
96 HUNGARIAN DANCE no.5
97 THE ENTERTAINER
91 PIANO SONATA op.13
"PATHETIQUE" 2nd Mov.
FUR ELISE
98 NOCTURNE op.9 no.2
(CHOPIN)
99 VALSE op.64 no.1
"PETIT CHIEN"
89 AMERICAN PATROL
90 CHOPSTICKS
44 AURA LEE
45 JAMAICA FAREWELL
46 JOHNNY COMES
MARCHING HOME
47 CAMPTOWN RACES
48 SWANEE RIVER
49
JEANNIE WITH
THE LIGHT BROWN HAIR
43 HOUSE OF THE RISING SUN
50 YANKEE DOODLE
51 RED RIVER VALLEY
52
MY OLD KENTUCKY HOME
53 HOME ON THE RANGE
31
WORKING ON THE RAILROAD
32 LITTLE BROWN JUG
33 LONG LONG AGO
34 MICHAEL
35 DOMINIQUE
36 DANNY BOY
37 ANNIE LAURIE
38 ALOHA OE
30
GRANDFATHER'S CLOCK
39 MY BONNIE
40 CLAP YOUR HANDS
41
MY DARLING CLEMENTINE
42 SHE WORE A YELLOW RIBBON
20 GREENSLEEVES
21 AMAZING GRACE
22 AULD LANG SYNE
23 TWINKLE TWINKLE
LITTLE STAR
24 LIGHTLY ROW
25
ACH DU LIEBER AUGUSTIN
26 LONDON BRIDGE
19 O CHRISTMAS TREE
27 J'AI PERDU LE DO
28 BATTLE HYMN
OF THE REPUBLIC
29
SUR LE PONT D'AVIGNON
10 SAVING ALL
MY LOVE FOR YOU
11
THE GIRL FROM IPANEMA
12 YESTERDAY
13
ANOTHER DAY IN PARADISE
14 HAPPY BIRTHDAY TO YOU
15 WE WISH YOU
A MERRY CHRISTMAS
09 CROCODILE ROCK
16 JINGLE BELLS
17 SILENT NIGHT
18 WHEN THE SAINTS
GO MARCHING IN
08
ALWAYS ON MY MIND
01 IN THE MOOD
02
A WHOLE NEW WORLD
03 WHEN YOU WISH
UPON A STAR
04 SUPERSTITION
05 I JUST CALLED
TO SAY I LOVE YOU
06 TOP OF THE WORLD
00
HOW DEEP IS YOUR LOVE
07 KILLING ME SOFTLY
WITH HIS SONG
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
60-69 EUROPEAN
POLKA/MARCH/WALTZ/TANGO
70-84 LATIN
BOSSA NOVA/SAMBA/MAMBO/RHUMBA/REGGAE
85-99 VARIOUS
COUNTRY/GOSPEL/ETC.
100 RHYTHMS

— 1 —
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)
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

— 2 —
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 Ωload 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 Ωload 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

— 3 —
BLOCK DIAGRAM
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 EKO8 ~
KO12 KI0 ~ KI6
KI0 ~ KI7
KO0 ~ KO7
ROM(2M-bit)
LC372100PM-
H78
LSI2

— 4 —
CIRCUIT DESCRIPTION
KEY MATRIX
NOMENCLATURE OF KEYS
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
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6
D#3
C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6A6G6F6E6D6 C7
C#3A#2G#2
F#2D#2
C#2 A#6 G#6F#6D#6
C#6
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
KO11 9 8 7 Fingered Normal
KO12 Right Play/Pause Stop Left
Synchro/
Fill in
Casio
Chord Power
off
Transpose/
Tune

— 5 —
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

— 6 —
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
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
Pin No. Terminal In/Out Function
1 ~ 22,
63 ~ 80
23 VSS — GND (0 V) source
Terminals for the built-in clock pulse generator. The external
resistor connected determines the oscillation frequency.
LCD drive voltage input.
26 ~ 30 V1 ~ V5 In Those voltages are used for generating the stepped pulse of
the LCD drive signals.
31, 32 LP, XCLS — Not used
33 VDD In DVDD (+5 V) source
34, 35 FR, DO — Not used
Data/command determination terminal.
High: data, Low: command
37 R/W In Read/Write terminal. High: read, Low: write
Chip enable signal.
38 E In High: enable, the writing is done at fall edge.
Low: disenable
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
24, 25 OSC1, OSC2 In/Out
36 RS In

— 7 —
POWER AMPLIFIER (IC101: LA4598)
The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC101.
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 CPU
MSM6755B-17
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

— 8 —
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.
CPU
MSM 6755B-17
LSI1
RESET
Reset IC
RN5VD40A
IC1
VDD Battery Set
TROUBLESHOOTING
Nature of Trouble
No power
No sound at all
Certain keys or switches do
not function
A certain key or switch does
not function
Faulty Block
Power supply circuit
Power switch
Power jack (J101)
Power Amp (IC101: LA4596)
CPU (LSI1: MSM6755B-17)
Oscillator
Key and switch matrix
CPU (LSI1: MSM6755B-17)
Key and switch matrix
Cause/Remedy
Faulty IC101. Replace IC101.
Faulty D104 ~ D106. Replace D104 ~
D106.
Faulty Q101 ~ Q104. Replace Q101 ~
Q104.
Poor contact. Clean the contacts.
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.

— 9 —
3) Equipment connection/Procedure
ADJUSTMENT
MAIN PCB
1) Items to be adjusted:
2) Adjustment and Test Point Locations
Item Measuring Instrument
Vop voltage setting Voltmeter
TP2
(Top View) (Bottom View)
VR1
Vop voltage setting
Watching the LCD at a 41.20°angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.
Output
Set Voltmeter
TP2
41.20°
LCD
Eye
Input
Connection Input
Point Input Signal Adjust Output Connection Output Point Adjust for
VR1 Voltmeter TP2 Adjust for 4.2 ~ 4.3 V reading
on voltmeter under the tem-
perature 20 ~ 25 °C.
Makefineadjustmentaccord-
ing to the following instruc-
tion.

— 10 —
MAJOR WAVEFORMS
0.1 s
CH1
CH1 5V BWL
1RESET signal
IC 1 pin 1
1
20 µs
CH1
BWL
CH1 1V
2
2Main clock pulse
MSM6755B-17 pin 32
10 µs
CH1
CH2
CH2 BWL
CH1 5V 5V
3Key scan signal KO10
MSM6755B-17 pin 72
4Key scan signal KO11
MSM6755B-17 pin 73
3
4
1ms
CH2
CH1
BWL
CH1 1V 1V
CH2
5Sound signal output (L-ch)
MSM6755B-17 pin 47
6Sound signal output (L-ch)
Q106 2SC1740SQ Emitter
5
6
1ms
CH1
CH2
BWL
CH1 1V CH2 1V
1ms
CH1
CH2
BWL
CH1 1V 1V
CH2
7Sound signal output (R-ch)
MSM6755B-17 pin 44
8Sound signal output (R-ch)
Q107 2SC1740SQ Emitter
9
0
9Sound signal output (R-ch)
LA4598 pin 3
0Sound signal output (L-ch)
LA4598 pin 12
Tone: Flute Ensemble
Key: A3
Volume: 7
7
8

— 11 —
PRINTED CIRCUIT BOARDS
Main PCB JCM450-MA1M
Top View
Bottom View
1
2
7
5
3
4

— 12 —
Keyboard PCB KDM6111K-KY1M
Keyboard PCB KDM6111K-KY2M
Main PCB JCM450-MA2M 6 8 9 10

— 13 —
SCHEMATIC DIAGRAMS
Main PCB JCM450-MA1M
1
2
7
5
3
4

— 14 —
Main PCB JCM450-MA2M
8
6
9
10
(2.9 V)
(5.3 V)
(0.7 V)

— 15 —
Keyboard PCBs KDM6111K-KY1M/KY2M
Notes:
1. All capacitance values are indicated in "µF" (p=10
-6
µF).
2. All resistance values are indicated in "Ω" (k=10
3
Ω, M=10
6
Ω).

— 16 —
EXPLODED VIEW
13
14
9
8
6
15
18
5
12 4
17
6
1
19
10
11
3
2
7
16
R-1
R-2
R-4
R-5 R-6 R-3
R-6
R-5

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 with-
out 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.
PARTS LIST
CTK-485

Item Code No. Parts Name Specification Q R
Main PCB
16926 6310 PCB ASSY/M450-MA1M M240821*1 1 B
26926 6320 PCB ASSY/M450-MA2M M140731*1 1 B
D1 2390 1820 DIODE/CHIP 1SS355TE-17 1 C
D101 2390 3021 DIODE SRT14 1 C
D102 2390 3018 DIODE 1T2 1 C
D103,D104
D106 - D114 2390 1344 DIODE 1SS133T-77-T 11 C
D105 2360 1939 DIODE MTZJ5.1CT-77-T 1 C
IC1 2012 1883 IC/MOS RN5VD40AA-TR 1 B
IC101 2114 2891 IC/LINEAR LA4598 1 B
J101 3501 7049 JACK/POWER HEC2305-01-330 1 C
J102 3612 0665 JACK/PHONE YKB21-5006 1 C
L102 3841 2051 INDUCTOR LAN02TA100J 1 C
LED101 2320 3146 LED TLR124 1 C
LSI1 2012 5603 LSI MSM6755B-17 1 A
LSI2 2012 5937 LSI LC372100PM-H78TE-L 1 A
LSI3 2012 5935 LSI KS0066U-10B 1 A
Q1 / Q3 2252 1239 TRANSISTOR 2SC4081T106Q 2 B
Q101 2200 2481 TRANSISTOR 2SA854SR-TP-T 1 B
Q102, Q104 - Q107 2220 1409 TRANSISTOR 2SC1740SR-TP-T 5 B
Q103 2250 1591 TRANSISTOR 2SB1237TV2R 1 B
Q2 2250 1162 TRANSISTOR 2SA1576AT106R 1 B
VR1 2775 0994 VOLUME/SEMI-FIXED EVND8AA03B53 1 C
X1 2590 2741 OSCILLATOR/CERAMIC CSACV20.00MXJ040-TC 1 C
Console PCB ass'y
36925 1310 PCB ASSY/KY M140402*4 1 B
D701 - D725 2301 0101 DIODE 1SS2473 25 C
D731 - D766 2301 0101 DIODE 1SS2473 36 C
Mechanical Parts
4 6926 6790 PANEL/DISPLAY M340785-1 1 C
56909 5890 KNOB CSB-12D 1 C
63831 0665 SPEAKER 10G42AFA 2 B
73335 6677 LCD CA480-TS 1 A
86922 2740 KEY SET/BLACK 10-KEY M111726-1 2 A
96922 2750 KEY SET/BLACK 5-KEY M111726-2 1 A
10 6922 3990 RUBBER/CONTACT M111764-1 1 B
11 6922 4000 RUBBER/CONTACT M111765-1 1 B
12 6921 5030 KNOB/SLIDE M311859-1 1 C
13 6922 2720 KEY SET/LT-CB WHITE M312118*1 4 A
14 6922 2730 KEY SET/LT-CB WHITE M312118*2 1 A
15 6926 6750 RUBBER/BUTTON M340417-4 1 C
16 6926 6760 RUBBER/BUTTON M340418-3 1 C
17 6925 9840 COVER/BATTERY M340485*2 1 C
18 6926 6770 RUBBER/BUTTON M340783-1 1 C
19 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