Casio CTK611 service manual

Casio CTK611 service manual
CTK-611
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PITCH BEND
POWER
200 TONES
REVERB
DEMO
RHYTHM
TONE
REVERB
SYNTH
MODE
VOLUME
INTRO
SYNCHRO/ENDING
MIXER
HALL
STAGE
ROOM
SYNTH
MIXER
MEMORY
STEP
GM
FREE
SESSION
LAYER
TRANSPOSE/
TUNE/MIDI
SPLIT
TOUCH
RESPONSE
FREE
SESSION
CURSOR
ENVELOPE
AMP
ENVELOPE
PITCH
ENVELOPE
000-048 DECAY
00 FLAT
049-137 SUSTAIN 01-19 VIBRATO
TEMPO
MEMORY
START
FULL RANGE
CHORD
FINGERED
MAX
CHORD/1
CASIO CHORD
NORMAL
MIN
2
MEMORY TRACK/DRUM PAD
3
4
LAYER
5
20-49 OTHERS
6
STEP
SPLIT
ACCOMP
VOLUME
TOUCH
RESPONSE
STOP
NORMAL/FILL-IN
VAR/FILL-IN
ENTER
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CTK-611
INDEX
ELECTRONIC KEYBOARD
CONTENTS
Specifications ................................................................................................................................... 1
Block Diagram .................................................................................................................................. 3
Circuit Description ............................................................................................................................ 4
Adjustment ..................................................................................................................................... 11
Major Waveforms ........................................................................................................................... 12
Printed Circuit Boards .................................................................................................................... 13
Schematic Diagrams ...................................................................................................................... 14
Exploded View ............................................................................................................................... 19
Parts List ........................................................................................................................................ 20
SPECIFICATIONS
GENERAL
Keyboard:
Drum pads:
Tones:
Rhythm instrument tones:
Polyphony:
Digital effects:
Auto accompaniment
Rhythm patterns:
Tempo:
Chords:
Rhythm controller:
Accomp volume:
Free session
Number of patterns:
Memory function
Songs:
Recording tracks:
Recording methods:
Memory capacity:
Edit function:
Demo tunes:
Synthesizer function
Parameters:
Mixer function
Channels:
Parameters:
MIDI:
Other functions
Pitch bend range:
Transpose:
Tuning:
Terminals
MIDI terminals:
Assignable terminal:
Headphone/Output terminal:
Power supply terminal:
Power supply:
Batteries:
Battery life:
AC adaptor:
Auto power off:
Speaker output:
Power consumption:
Dimensions (HWD):
Weight:
61 standard-size keys, 5 octaves (with touch response on/off)
6
200 (128 General MIDI, 32 synthesized, 8 drum, 32 user); with layer and
split
51
24 notes maximum (12 for certain tones)
3 reverb types (HALL, STAGE, ROOM)
100
Variable (216 steps, = 40 to 255)
3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE
CHORD)
START/STOP, INTRO, NORMAL/NORMAL FILL-IN, VARIATION/VARIATION FILL-IN, SYNCHRO/ENDING
0 to 127 (128 steps)
100 (auto-accompaniment in accordance with selected chord progression)
2
6 (2 through 6 are melody tracks)
Real-time, step
Approximately 5,200 notes (total for two songs)
Equipped
2
PCM set, amp envelope set, attack rate, release rate, pitch envelope set,
pitch, level, touch sense, pan
16
Program change number, volume, expression, pan, coarse tuning, fine
tuning, on/off/solo
16 multi-timbre receive, GM Level 1 standard
12 semitones upwards and downwards
25 steps (–12 semitones to +12 semitones)
Variable (A4 = approximately 440 Hz ± 50 cents)
IN, OUT
Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Stereo standard jack
Output Impedance: 120 Ω
Output Voltage: 4.5 V (RMS) MAX
9 V DC
Dual power supply system
6 D-size batteries
Approximately 5 hours continuous operation on manganese batteries
AD-5
Turns power off approximately six minutes after last key operation. Enabled under battery power only, can be disabled manually.
2.5 W + 2.5 W
9 V --- 7.7 W
93.1 × 37.3 × 12.0 cm (36 11/16 × 14 11/16 × 4 3/4 inches)
Approximately 5.0 kg (11.0 lbs) (without batteries)
—1—
ELECTRICAL
Current drain with 9 V DC:
No sound output
Maximum volume
with 12 keys from C3 to B3 pressed in Square wave tone
Volume: maximum, Touch response: maximum
Reverb: Hall
Phone output level (Vrms with 8 Ω load each channel):
with key C6 pressed in Bassoon tone
Volume: maximum, Touch response: maximum
Reverb: Hall
Speaker output level (Vrms with 4 Ω load each channel):
with key F5 pressed in Bassoon tone
Volume: maximum, Touch response: maximum
Reverb: Hall
Output level (Vrms with 47k Ω load each channel):
with key F5 pressed in Bassoon tone
Volume: maximum, Touch response: maximum
Reverb: Hall
Minimum operating voltage:
340 mA ± 20 %
1012 mA ± 20 %
L-ch
R-ch
90 mV ± 20 %
100 mV ± 20 %
L-ch
R-ch
1150 mV ± 20 %
1000 mV ± 20 %
L-ch
R-ch
1200 mV ± 20 %
1000 mV ± 20 %
6.3 V
About General MIDI
General MIDI standardizes MIDI data for all sound source types, regardless of manufacturer. General MIDI
specifies such factors as tone numbering, drum sounds, and available MIDI channels for all sound sources.
This standard makes it possible for all MIDI equipment to reproduce the same nuances when playing
General MIDI data, regardless of the manufacturer of the sound source.
This keyboard supports General MIDI, so it can be used to play commercially available pre-recorded
General MIDI data and General MIDI data send to it from a personal computer.
—2—
BLOCK DIAGRAM
Working Storage
RAM (256K-bit)
LSI4
TC55257DFL-70L(EL)
SEG1 ~ SEG40
LCD Driver
MIDI
OUT IN
P10, P13
P14, P17
LCD
LSI401
SED1278F2A
COM1 ~ COM16
Reset IC
IC1
RN5VD40AA
RESET
P23
MD0
~
MD7
MA0
~
MA14
FI0 ~ FI9
SI0 ~ SI9
CPU
Sound Source ROM
(16M-bit)
LSI3
UPD23C16000WGXC51
LSI1
KI0 ~ KI2
PB0 ~ PB3
LRCK, SO
BCK, SINK
FI10
VDD
NMI
EA0 ~
EA14
EIO0 ~
EIO7
KC0 ~ KC7
UPD913GF-3BA
MA0 ~ MA19
MA0, MA1
Effect RAM
(256K-bit)
LSI5
TC55257DFL70L(EL)
Keyboard
MD0 ~ MD15
Power Switch
DSP
LSI2
PA0 ~ PA5
HG51B277FB-1
PB0 ~ PB3
Buttons
PB4
LRCK
SO
BCK
Assingnable Jack
D/A Converter
LSI6
UPD6379GR
LVDD
VCC
Output
Speakers
AVDD
DVDD
VDD
Filter
Q107 ~ Q110
APO
Main
Volume
Power Amplifier
IC101
TA8248K
—3—
Power Supply Circuit
Q101 ~ Q105,
D106/107, D190
VC
CIRCUIT DESCRIPTION
KEY MATRIX
KC0
KC1
KC2
KC3
KC4
KC
KC6
KC7
FI0
C2 (1)
C#2 (1)
D2 (1)
D#2 (1)
E2 (1)
F2 (1)
F#2 (1)
G2 (1)
SI0
C2(2)
C#2 (2)
D2 (2)
D#2 (2)
E2 (2)
F2 (2)
F#2 (2)
G2 (2)
FI1
G#2 (1)
A2 (1)
A#2 (1)
B2 (1)
C3 (1)
C#3 (1)
D3 (1)
D#3 (1)
SI1
G#2 (2)
A2 (2)
A#2 (2)
B2 (2)
C3 (2)
C#3 (2)
D3 (2)
D#3 (2)
FI2
E3 (1)
F3 (1)
F#3 (1)
G3 (1)
G#3 (1)
A3 (1)
A#3 (1)
B3 (1)
SI2
E3 (2)
F3 (2)
F#3 (2)
G3 (2)
G#3 (2)
A3 (2)
A#3 (2)
B3 (2)
FI3
C4 (1)
C#4 (1)
D4 (1)
D#4 (1)
E4 (1)
F4 (1)
F#4 (1)
G4 (1)
SI3
C4 (2)
C#4 (2)
D4 (2)
D#4 (2)
E4 (2)
F4 (2)
F#4 (2)
G4 (2)
FI4
G#4 (1)
A4 (1)
A#4 (1)
B4 (1)
C5 (1)
C#5 (1)
D5 (1)
D#5 (1)
SI4
G#4 (2)
A4 (2)
#4 (2)
B4 (2)
C5 (2)
C#5 (2)
D5 (2)
D#5 (2)
FI5
E5 (1)
F5 (1)
F#5 (1)
G5 (1)
G#5 (1)
A5 (1)
A#5 (1)
B5 (1)
SI5
E5 (2)
F5 (2)
F#5 (2)
G5 (2)
G#5 (2)
A5 (2)
A#5 (2)
B5 (2)
FI6
C6 (1)
C#6 (1)
D6 (1)
D#6 (1)
E6 (1)
F6 (1)
F#6 (1)
G6 (1)
SI6
C6 (2)
C6# (2)
D6 (2)
D#6 (2)
E6 (2)
F6 (2)
F#6 (2)
G6 (2)
FI7
G#6 (1)
A6 (1)
A#6 (1)
B6 (1)
C7 (1)
SI7
G#6 (2)
A6 (2)
A#6 (2)
B6 (2)
C7 (2)
KC1
Drum Pad
1
Drum Pad
2
KC2
Pitch Bend
H
Pitch Bend
G
Tempo
H
Tempo
G
BUTTON MATRIX
FI10
KI0
KI1
KI2
PB0
KC0
Drum Pad
3
Drum Pad
4
Drum Pad
5
Drum Pad
6
Step
Memory
PA0
Full Range
Chord
PB1
Fingered
PB2
Casio Chord
PB3
Normal
PA1
Intro
Normal/
Fill-In
Synchro/
Ending
Variation/
Fill-In
KC3
H
Enter
Start/
Stop
KC4
KC5
KC6
KC7
9
6
+
Tone
8
3
—
Rhythm
E
7
2
0
Demo
F
4
5
1
Transpose/
Tune/MIDI
PA2
Touch
Response
PA3
Reverb
Free Session
Accomp
Volume
Layer
Synth
Split
Mixer
—4—
Key
Note: Each key has two contacts,
the first conatct (1) and second contact (2).
FI
First contact (1)
Second contact (2)
KC
SI
NOMENCLATURE OF KEYS
C#2 D#2
C2
D2
E2
F#2 G#2 A#2
F2
G2
A2
B2
C#3 D#3
C3
D3
E3
F#3 G#3 A#3
F3
G3
A3
B3
F#4 G#4 A#4
C#4 D#4
C4
D4
E4
F4
G4
A4
B4
C#5 D#5
C5
D5
E5
F#5 G#5 A#5
F5
G5
A5
B5
C#6 D#6
C6
D6
E6
F#6 G#6 A#6
F6
G6
A6
B6 C7
POWER SUPPLY CIRCUIT
The power supply circuit generates five voltages as shown in the following table. VDD voltage is always
generated. The others are controlled by APO signal from the CPU.
Name
Voltage
For operation of
VDD
+5 V
CPU, Reset IC, DSP, Sound source ROM, Working storage RAM, Effect RAM
DVDD
+5 V
LCD driver, Power jack, Sustain jack, MIDI jack
AVDD
+5 V
DAC, Filter
LVDD
+5.6 V
LCD dirver
VCC
+9 V
Power amplifier, Pilot lamp
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, and clears the working storage RAM.
When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU sends APO
signal to the power supply circuit, also sends a reset signal to the DSP.
VDD
Battery set
VDD
VDD
Reset signal
RESET
Reset IC
IC1
RN5VD40AA
POWER
PLE
CPU
LSI1
UPD913GF-3BA
DSP
LSI2
HG51B277FB-1
APO
SCKO
NMI
To power supply circuit
From power switch
—5—
CPU (LSI1: UPD913GF-3BA)
The 16-bit CPU contains a 1k-byte RAM, three 8-bit I/O ports, two timers, a key controller and serial interfaces.
The CPU detects key velocity by counting the time between first-key input signal FI and second-key SI from
the keyboard. The CPU reads sound data and velocity data from the sound source ROM in accordance with
the selected tone; the CPU can read rhythm data simultaneously when a rhythm pattern is selected. Then the
CPU provides 16-bit serial sound data to the DSP. The CPU also controls MIDI input/output and stores
sequencer data into the working storage RAM.
The following table shows the pin functions of LSI1.
Pin No.
Terminal
In/Out
1
TXD0
Out
2
RXD0
In
3
SCK0
Out
4, 5
TXD1, RXD2
In/Out
6
SCK1
Out
7
AVCC
In
DVDD (+5 V) source
8
AN0
In
AC adaptor detection terminal.
+5 V when the keyboard is powered by batteries and becomes
0 V to cancel the APO function when AC adaptor is connected.
9
AN1
—
Not used. Connected to ground.
10
AGND
In
Ground (0 V) source
11
BCK
Out
Bit clock output
12
SO
Out
Serial sound data output
13
LRCK
Out
Word clock output
14
GND
In
15, 16
XLT0, XLT1
In/Out
17
VCC
In
+5 V source
18, 19
MD0, MD1
In
Mode selection terminal
20
RSTB
In
Reset signal input
21
NMI
In
Power ON signal input
22
INT/P10
In/Out
Data bus for the LCD driver
In
Terminal for key input signal
Out
Terminal for key scan signal
In
Terminal for key input signal
—
Not used
Terminal for button input signal
23 ~ 30
31 ~ 38
39 ~ 46
47 ~ 50
FI0 ~ FI3
SI0 ~ SI3
KC0 ~ KC7
FI4 ~ FI7
SI4 ~ SI7
FI8, FI9
SI8, SI9
Function
MIDI signal output
MIDI signal input
APO (Auto Power Off) signal output
Data bus for the LCD driver
1 MHZ synchronizing pulse output
Ground (0 V) source
20 MHz clock input/output
51
FI10
In
52
SI10/P23
Out
53 ~ 55
KI0 ~ KI2
In
Terminal for button input signal
56
MWNB
Out
Write enable signal for the DSP
57 ~ 76
MA0 ~ MA17
Out
Address bus
77
MCSB0
Out
Chip enable signal output for the sound source ROM
78
MCSB1
Out
Not used
79
MCSB2
Out
Chip enable signal output for the DSP
Chip enable signal for the LCD driver
—6—
Pin No.
Terminal
In/Out
Function
80
VCC
In
+5 V source
81
GND
In
Ground (0 V) source
82
MRDB
Out
83 ~ 98
MD0 ~ MD15
In/Out
99
PLE
Out
100
P17
In/Out
Read enable signal output for the sound source ROM
Data bus
Reset signal output for the DSP
Data bus for the LCD driver
DIGITAL SIGNAL PROCESSOR (LSI2: HG51B227FB-1)
The DSP receives 16-bit serial sound data output from the CPU and adds the selected effect to the sound data
using the effect RAM. Then the DSP provides the sound data to the DAC. The DSP also controls button input/
output.
The following table shows the pin functions of LSI2.
Pin No.
Terminal
In/Out
Function
1 ~ 3, 80
PB0 ~ PB3
In
Button input terminals
4
PB4
In
ASSIGNABLE Jack input
5
SO
Out
Serial sound data output for the DAC
6
WCKO
Out
Word clock output for the DAC
7
VDD3
In
+5 V source
8
TEST
—
Not used
9
RESB
In
Reset signal input
10
VSS2
In
Ground (0 V) source
11, 12
XIN, XOUT
In/Out
13
WCKI
In
Word clock input from the CPU
14
SI
In
Serial sound data input from the CPU
15
BCKI
In
Bit clock input from the CPU
16
SINC
In
1 MHz synchronizing pulse input
17
VDD2
In
+5 V source
18 ~ 25
IO0 ~ IO7
In/Out
26
RCEB
Out
27
VSS3
In
Ground (0 V) source
28
AD1
In
Address bus
29
OEB
Out
30
WEB
In
Write enable signal
31
VDD3
In
+5 V source
32
CE2
In
Chip enable signal input. High active.
33
AD0
In
Address bus
34
CE1B
In
Chip enable signal input. Low active.
35 ~ 41, 43
EIO0 ~ EIO7
In/Out
20 MHz clock input/output
Data bus
Chip enable signal output for the working storage RAM
Output enable signal for working storage RAM
Data bus for the effect RAM
—7—
Pin No.
Terminal
In/Out
Function
42 , 44, 46 ~ 48,
51 ~ 59, 61
EA0 ~ EA12
Out
Address bus for the effect RAM
45
ECEB
Out
Chip enable signal output for the effect RAM
49
EOEB
Out
Read enable signal output for the effect RAM
50
VSS3
In
60
EWEB
Out
62, 66, 70, 74, 78
VSS2
In
Ground source
63, 67, 71, 75, 79
VDD2
In
+5 V source
64, 65, 68, 69,
72, 73
PA0 ~ PA5
Out
Button scan signal output
76, 77
PA6/7
Out
Not used
Ground (0 V) source
Write enable signal output for the effect RAM
LCD DRIVER (LSI401: SED1278F2A)
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 LSI 401.
Pin No.
Terminal
In/Out
Function
1 ~ 22,
63 ~ 80
SEG1 ~ SEG40
Out
23
VSS
—
24, 25
OSC1, OSC2
In/Out
Terminals for the built-in clock pulse generator. The external
resistor connected determines the oscillation frequency.
26 ~ 30
V1 ~ V5
In
LCD drive voltage input.
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
36
RS
In
Data/command determination terminal.
High: data, Low: command
37
R/W
In
Read/write terminal. High: read, Low: write
38
E
In
Chip enable signal.
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
47 ~ 62
COM1 ~ COM16
Out
Segment signal output
GND (0 V) source
Data bus
Common signal/output
—8—
DAC (LSI6: UPD6379GR)
The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of the
melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into
analog waveforms and output them to each channel separately.
Synch signal
SCK1
SINC
Data
Data
L OUT
DAC
IC6
UPD6379GR
R OUT
DSP
LSI2
HG51B277FB
SO
SI
Word clock
SO
SI
Word clock
WCKO
LRCK
Bit clock
LRCK
WCKI
Bit clock
CLK
BCKI
CPU
LSI1
UPD913GF-3BA
BCK
FILTER BLOCK
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the
waveforms.
AG
AG
AG
AG
10K
22K
10 V22 µ
1K
10K
18K
To main volume
2.2K
AG
10K
560PF
10K
150PF
+
6.3V 1000 µ
Q110
2SC1740SQ.R
270PF
22 Ω
0.01 µF
AVDD
Q107
2SC1740SQ.R
AVDD
AG
—9—
From DAC
POWER AMPLIFIER (IC101: TA8248K)
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
NC
—
Not used
2
B.S.2
—
Terminal for a bootstrap capacitor
3
OUT2
Out
Channel 2 output
4
VCC
In
5
OUT1
Out
Channel 1 output
6
B.S.1
—
Terminal for a bootstrap capacitor
7
Power GND
In
Ground (0 V) source
8
Stand by
In
Power control signal input. 0 V: Off, +9 V: On
9
DC
—
Terminal for a decoupling capacitor
10
NF1
In
Negative feedback input
11
IN1
In
Channel 1 input
12
IN2
In
Channel 2 input
13
NF2
In
Negative feedback input
14, 15
Pre GND
In
Ground (0 V) source
+9 V source
— 10 —
ADJUSTMENT
DISPLAY PCB
1) Items to be adjusted:
Item
Measuring Instrument
Vop voltage setting
Voltmeter
2) Adjustment and Test Point Locations
(TOP VIEW)
VR401
TP2
3) Equipment connection/Procedure
Vop voltage setting
Set
Voltmeter
Output
TP2
Input
Connection
Input
Point
Input
Signal
Adjust
Output
Connection
Output
Point
VR410
Voltmeter
TP2
Adjust for
Adjust for 4.3 to 4.4 V reading on voltmeter under the
temparature 20 to 25 °C.
Make fine adjustment according to the following instruction.
Eye
Watching the LCD at a 51.74° angle to the horizontal, adjust Vop
voltage so that unenergized segments are seen dimly.
51.74°
LCD
— 11 —
MAJOR WAVEFORMS
20 ms
0.5 s
1 ms
1 ms
Power button ON
1
CH1
3
CH1
CH1
9
CH2
4
CH2
2
CH2
0
–
CH1: 5 V
–
CH2: 5 V
–
CH1: 5 V
1 NMI signal
JE connector pin 16
2 APO signal
JD connector pin 9
–
CH2: 5 V
CH1
7
6
CH2
CH2
8
–
CH1: 5 V
–
CH2: 5 V
5 Key scan signal KC0
JB connector pin 1
6 Key scan signal KC1
JB connector pin 2
–
CH1: 5 V
˜
CH1: 50 mV
–
CH2: 5 V
7 RS signal PA4
JC connector pin 7
8 R/W signal PA5
JC connector pin 6
— 12 —
˜
CH2: 50 mV
A Sound signal (L-ch)
JF connector pin 2
B Sound signal (R-ch)
JF connector pin 1
Tone : Whistle (078)
Key : A4
Touch response : Off
Reverb : Off
Volume : Maximum
0.5 s
CH1
˜
CH2: 50 mV
9 DAC output (L-ch)
JD connector pin 6
0 Dac output (R-ch)
JD connector pin 7
Power ON
5
CH2
B
˜
CH1: 50 mV
3 Button scan signal PA0
JD connector pin 14
4 Button scan signal PA1
JE connector pin 14
50 µs
CH1
A
PRINTED CIRCUIT BOARDS
Sub PCB JCM462-MA2M
Top View
12
Main PCB JCM462-MA1M
3
7
2
10
8
9
1
6
4
5
Bottom View
Top View
— 13 —
11
SCHEMATIC DIAGRAMS
Main PCB JCM462-MA1M
4
8
1
7
10
9
3
2
5
— 14 —
6
Sub PCB JCM462-MA2M/Volume PCB JCM462-MA3M
12
— 15 —
11
Display PCB JCM462-LCD1M
— 16 —
Keyboard PCBs JCM617T-KY1M/KY2M
— 17 —
COM13
COM14
COM15
COM16
SEG17
SEG 8
SEG 9
SEG10
SEG32
COM 9
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG 3
COM12
SEG 2
SEG 1
SEG11
COM 9
SEG12
COM16
SEG29
COM15
COM14
COM13
SEG30
SEG31
SEG32
COM12
COM11
COM10
SEG20
COM 9
SEG19
SEG18
COM13
COM14
COM15
COM16
COM10
COM12
SEG21
COM11
SEG 1
SEG 2
SEG 3
SEG 4
SEG 5
SEG 6
SEG 7
SEG 8
SEG 9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
COM 1
COM 2
COM 3
COM 4
COM 5
COM 6
COM 7
COM12
COM13
COM14
COM15
COM16
SEG17
SEG 8
SEG 9
SEG10
SEG32
COM 9
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG 3
COM12
SEG 2
SEG 1
SEG11
COM 9
SEG12
COM16
SEG29
COM15
COM14
COM13
SEG30
SEG31
SEG32
COM12
COM11
COM10
SEG20
COM 9
SEG19
SEG18
COM13
COM14
COM15
COM16
COM10
COM12
SEG21
COM11
SEG 1
SEG 2
SEG 3
SEG 4
SEG 5
SEG 6
SEG 7
SEG 8
SEG 9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
COM 1
COM 2
COM 3
COM 4
COM 5
COM 6
COM 7
COM12
LCD
Common
Segment
— 18 —
EXPLODED VIEW
29
R-1
28
17
26
13
25
24
16
15
27
17
23
19
18
14
31
22
21
20
6
12
7
3
9
8
2
1
R-2
10
11
5
30
R-3
4
— 19 —
PARTS LIST
CTK-611
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
Main PCB
6925 8440 PCB/ASS'Y (MA1M)
2012 4879 LSI/CPU
2012 2079 LSI/DSP
2012 5590 LSI/ROM
2012 5572 LSI/RAM
2105 4746 LSI/DAC
2012 1883 IC/MOS
2845 6456 R-C NETWORK/CHIP
2845 6457 R-C NETWORK/CHIP
2590 2742 OSCILLATOR/CRYSTAL
2590 2699 OSCILLATOR/CERAMIC
Sub PCB ass'y
6926 9180 PCB/ASS'Y (MA2,3M)
2
IC101
2114 5775 IC/LINEAR (POWER AMP)
2252 1248 IC/PHOTOCOUPLER
IC102
Q101
2250 0742 TRANSISTOR
2252 0784 TRANSISTOR
Q103
2251 0672 TRANSISTOR
Q105
2250 1578 TRANSISTOR
2390 3018 DIODE
D101/D102
2390 1344 DIODE
D106
2360 1085 DIODE/ZENER
D107
2360 1946 DIODE/ZENER
D190
2360 1673 DIODE/ZENER
LED101
2320 3146 LED
J101
3501 7049 JACK/POWER
J102
3612 0665 JACK/PHONE
J103
3612 0789 JACK
J104
3501 4816 JACK/DIN
VR101
2765 2178 VOLUME
Display PCB
3
6926 8350 PCB/ASS'Y (LCD1M)
LSI401
2012 6018 LSI/LCD DRIVER
VR401
2775 3286 POTENTIOMETER/CHIP
Keyboard PCBs
4
6924 2580 PCB/ASS'Y (KY1M)
D501 - D564 2301 0101 DIODE
5
6925 8490 PCB/ASS'Y (KY2M)
D565 - D622 2301 0101 DIODE
Keyboard unit
6
6922 2720 KEY SET/LT WHITE
7
6922 2730 KEY SET/LT WHITE
8
6922 2740 KEY SET/10P BLACK
9
6922 2750 KEY SET/5P BLACK
10
6922 2761 RUBBER/KEY CONTACT
11
6922 2771 RUBBER/KEY CONTACT
Panel unit
12
3122 3546 MODULE/EL
13
3335 6724 LCD
14
6926 6971 SPACER
15
6926 6991 SPACER
16
6925 8590 RUBBER/INTERCONNECTOR
Notes: Q Ð Quantity per unit
R Ð Rank
1
LSI1
LSI2
LSI3
LSI4/LSI5
LSI6
IC1
MRC1,2,5,6
MRC3,4
X1
X2
Ñ 20 Ñ
Specification
Q R
M240613*1
UPD913GF-3BA(T)
HG51B277FB-1
UPD23C16000WGX-C51
TC55257DFL-70L(EL)
UPD6379GR-E1
RN5VD40AA-TR
EZAST62AAAJ
EZASS508TAJ
AT-49-30M
EFOB2005E0
1
1
1
1
2
1
1
4
2
1
1
B
A
A
A
A
A
A
C
C
C
C
M140554*3
TA8248K
HCPL-261A
2SA1703S,T-AN-T
2SC1740SQ,R-TP-T
2SB1548-P,CS
2SC4483S,T-AN
1T2
1SS133T-77-T
HZS6B1LTD-T
MTZJ5.6CT-77-T
MTZJ5.6AT-77-T
TLR124
HEC2305-01-330
YKB21-5006
YKB21-5010
YKF51-5051
EWASC2C95B23
1
1
1
1
7
1
1
2
40
1
1
1
1
1
1
1
1
1
B
A
B
C
C
1
C
C
C
C
C
C
C
C
C
C
C
C
M240609*2
SED1278F2A
EVM3SSX50B53
1
1
1
B
A
C
M140211*5
1S2473-T-77-T
M140212*9
1S2473-T-77-T
1
64
1
58
B
X
B
X
M312118*1
M312118*2
M111726-1
M111726-2
M211704A-1
M211705A-1
4
1
2
1
4
1
A
A
A
A
C
C
YLM-102
LD-B10088E
M440644A-1
M440648A-1
M440426-2
1
1
1
1
2
B
B
C
C
B
Item
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Code No.
3831 0833
6923 4980
6925 8610
6926 8280
6925 8630
6926 8290
6926 8300
6926 8310
6906 9071
6925 8680
6913 6410
6921 5030
6926 8320
6906 9097
6926 8520
Accessory
6906 8752
6926 8360
Notes:
Parts Name
Specification
Q R
SPEAKER
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
RUBBER/BUTTON
SWITCH/SLIDE
KNOB
PLATE/DISPLAY
COVER/BATTERY
FILM
S12J49A
M312122-2
M240543-1
M140516-2
M240544-1
M240544-3
M240545-2
M240546-2
M240547-2
M240548-1
CSB-12D
M311859-1
M240568-3
M311164G*16
M440651-1
2
1
1
1
1
1
1
1
1
1
1
2
1
1
2
B
B
B
B
B
B
B
B
B
B
B
B
C
B
C
STAND/MUSIC/BAR TYPE
STAND/MUSIC/BOARD TYPE
M340629B*2
M140530-2
1
1
B
B
Q Ð Quantity per unit
R Ð Rank
Ñ 21 Ñ
CASIO TECHNO CO.,LTD.
Overseas Service Division
8-11-10, Nishi-Shinjuku
Shinjuku-ku, Tokyo 160-0023, Japan
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