R
(with price)
CTK-750
CTK-750
ELECTRONIC KEYBOARD
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECIFICATIONS
General
Number of Keys:
Polyphonic:
Preset Tones:
61
32-note
128
Tone Expander: Layer, Split
Keyboard Controls:
Touch Response: On/Off
Touch Sensitivity: Light/Middle/Heavy
Range from F# to F by a half-note increment
128
Key Transpose:
Auto-Rhythms:
Tempo Control: 40 to 255
Auto-Accompaniment:
CASIO Chord/Fingered/Full-Range Chord
Controller: Variation, Fill-In, Intro/Ending
Magical Preset Variations:
128; BREAK BEAT
SHADOW DRUM
TONE STACK
16
4
40
MELODYCOMP
FREE SESSION 32
KEY SPLIT 12
8
HYPERACTIVE 16
Digital Effects:
16; Reverb-1, Reverb-2, Reverb-3, Chorus, Tremplp, Phase Shifter,
Organ SP, Enhancer, Flanger, EQ Loudness, Delay-1, Delay-2,
Analog Delay, Tap Delay, Chorus Reverb, Tremolo Reverb
6
Sound/Control Pads:
Pad Variations:
32; Phrases: 10, Drums: 10, SE/Percussion: 10, Controller: 2
Song Memories:
2;
Tracks: 6
System: Real-time recording
Memory Capacity: Approx. 5,800 notes
Registration Memories:
Registration Items:
10
Tone Number, Rhythm Number, Tempo, Accompaniment Mode,
Accompaniment Volume, Effects, Layer On/Off, Split On/Off,
Pad Variation, Assignable Jack, Auto-Accompaniment On/Off,
Auto-Accompaniment Controller, MIDI (Channel On/Off, GM On/Off,
Local Control On/Off, Bend Range)
Tuning Control:
Terminals:
440Hz ± 100 cents
Headphone Jack [Output Impedance: 100 Ω, Output Voltage: 1.7 V(rms)
MAX], Assignable Jack, MIDI Jacks (IN, OUT), AC Adaptor Jack (12V)
12 cm dia. 1.1W Input Rating: 2 pcs.
Built-In Speakers:
Power Source:
2-way AC or DC source
AC: AC adaptor AD-12
DC: 6 D size dry batteries
Battery life: Approx. 5 hours by manganese batteries R20P(SUM-1)
Approx. 5 hours by alkaline batteries LR20(AM1)
Approximately 6 minutes after the last operation
18 W
Auto Power Off:
Power Consumption:
Dimentions:
141 x 968 x 411 mm (HWD)
(5-11/16 x 38-1/16 x 16-5/16 inches) (HWD)
7.0 kg (15.5 lbs) excluding batteries
Weight:
Standard Accessory:
Music stand
— 1 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Electrical
Current Drain with 12V DC:
No Sound Output
Maximum Volume
390 mA ± 20%
1700 mA ± 20%
with white keys D2 to D3 pressed in Synth-Bass-2 tone
and in Latin Fusion rhythm at initial setup tempo
Volume; maximum, Touch: maximum
Line Output Level (Vrms with 47 KΩ load each cannel):
with key D4 pressed in FSynth-Bass-2 tone on L-ch
with key G4 pressed in FSynth-Bass-2 tone on R-ch
Phone Output Level (Vrms with 8 Ω load each channel):
with key D4 pressed in FSynth-Bass-2 tone on L-ch
with key G4 pressed in FSynth-Bass-2 tone on R-ch
Speaker Input Level:
850 mV ± 20%
800 mV ± 20%
280 mV ± 20%
260 mV ± 20%
with key D4 pressed in FSynth-Bass-2 tone on L-ch
with key G4 pressed in FSynth-Bass-2 tone on R-ch
Minimum Operating Voltage:
5200 mV ± 20%
5600 mV ± 20%
5.5 V
REPLACING THE DSP (HG51A115A01FD)
Note: To increase productivity ,the DSP HG51A115A01FD is sticked on the main PCB with a double-side
adhesive tape, then its leads are soldered.
Remove the DSP according to the following procedures.
1. Prepare isopropyl alcohol and a flat IC desoldering machine (Spot Heater HS-600).
2. Apply plenty of the alcohol to the adhesive tape from the reverse side of the main PCB. (Fig. 1)
There is a hole on the PCB just under the LSI, and the adhesive tape can be seen through the hole.
3. Leave it more than one minute so that the alcohol weaken adhesive power fully.
4. Using a proper size of nozzle, apply heat to leads of the LSI with the desoldering machine.
5. Grasp the LSI with tweezers, and using gentle force vibrate the tweezers to feel melting solder. (Fig.2)
6. Remove the LSI after meltingsolder at every leads wholly.
Spot Heater HS-600
Alcohl
Fig.1
Fig.2
— 2 —
Download from Www.Somanuals.com. All Manuals Search And Download.
BLOCK DIAGRAM
7-Segment
LED
LEDs
LO0 ~ LO4
Keyboard
LED driver
BA612
Gate Array
UPD65005C-578
FI0 ~ FI7
SI0 ~ SI7
KC0 ~
KC7
KO0 ~ KO7
LD0 ~ LD7
Buttons
VDD
D0~D7
KI1 ~ KI7
POWER
CPU
HD6433298A18P
Key Touch LSI
HG52E35P
A0 ~ A15
A0 ~ A2
Power Switch
IN
OUT
MIDI
Working Strage
RAM (256K-bit)
HM62256ALP-10
APO
A0 ~ A14
A0 ~ A3
RA0 ~ RA19
RD0 ~ RD15
EA0 ~ EA14
DSP
HG51A115A01FD
Sound Source ROM
(16M-bit)
TC5316200CP-C081
Effect RAM
(256K-bit)
HM62256ALP-10
ED0 ~ ED7
WCK1
SLOP
BCK
D/A Converter
UPD6376CX
DVDD
LVDD
AVDD
VD
VCC
VDD
Filter
Filter
Output
Main
Volume
Power Supply Circuit
Q1 ~ Q7
Speakers
Power Amplifier
LA4620
— 3 —
Download from Www.Somanuals.com. All Manuals Search And Download.
CIRCUIT DESCRIPTION
Key Matrix
KC0
C2 1
C2 2
G#2 1
G#2 2
E3 1
E3 2
C4 1
C4 2
G#4 1
G#4 2
E5 1
E5 2
C6 1
C6 2
G#6 1
G#6 2
KC1
C#2 1
C#2 2
A2 1
A2 2
F3 1
KC2
KC3
D#2 1
D#2 2
B2 1
B2 2
G3 1
G3 2
D#4 1
D#4 2
B4 1
B4 2
G5 1
G5 2
D#6 1
D#6 2
B6 1
B6 2
KC4
E2 1
E2 2
C3 1
C3 2
KC5
F2 1
F2 2
C#3 1
C#3 2
A3 1
A3 2
F4 1
F4 2
C#5 1
C#5 2
A5 1
A5 2
F6 1
F6 2
KC6
KC7
G2 1
G2 2
D#3 1
D#3 2
B3 1
B3 2
G4 1
G4 2
D#5 1
D#5 2
B5 1
B5 2
G6 1
G6 2
FI0
SI0
FI1
SI1
FI2
SI2
FI3
SI3
FI4
SI4
FI5
SI5
FI6
SI6
FI7
SI7
D2 1
F#2 1
F#2 2
D3 1
D2 2
A#2 1
A#2 2
F#3 1
F#3 2
D4 1
D3 2
G#3 1
G#3 2
E4 1
E4 2
C5 1
C5 2
G#5 1
G#5 2
E6 1
E6 2
C7 1
C7 2
A#3 1
A#3 2
F#4 1
F#4 2
D5 1
F3 2
C#4 1
C#4 2
A4 1
A4 2
F5 1
D4 2
A#4 1
A#4 2
F#5 1
F#5 2
D6 1
D5 2
A#5 1
A#5 2
F#6 1
F#6 2
F5 2
C#6 1
C#6 2
A6 1
A6 2
D6 2
A#6 1
A#6 2
Note: Each key has two contacts, the first conatct 1 and second contact 2 .
Key
FI
First contact 1
Second contact 2
KC
SI
— 4 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Nomenclature of Keys
C#2
G#2 A#2
C#3 D#3
F#3 G#3
F#4 G#4
C#5
F#5 G#5
D#6
F#6 G#6
A#6
D#2
F#2
A#3
C#4 D#4
A#4
D#5
A#5
C#6
E3
E2
G2
D6 E6 F6 G6 A6 B6
C7
C2 D2
F2
A2 B2 C3 D3
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6
Button Matrix
KI1
KI2
KI3
Upper 1
MIDI
KI4
Lower 1
Jack
KI5
KI6
KI7
KO0
Split
Layer
Tune
Lower 2
Rhythm
Upper 2
Tone
KO1
KO2
KO3
KO4
KO5
KO6
KO7
Transpose
Play Style
Track 4
Chord 1
Track 5
Chord 2
Track 6
Chord 3
Track 2
Rhythm
Track 3
Bass
Touch
Responce
Digital
Effect
3
2
6
5
9
8
Demo
Track 1
Track
Intro
Resistration
1
0
F
4
-
7
+
B
Accomp.
Volume
Song
Memory
Accomp.
Synchro/
Ending
Variation
/Fill-In
Normal/
Fill-In
D
Start/
Stop
Tempo
Down
Tempo
Up
Mode
A
C
E
Reset Circuit
VDD
VDD
DVDD
Battery set
VDD
DSP
HG51A115A01FD
Gate Array
UPD65005C-578
RESET
Reset IC
S8053ANO
CPU
HD6433298A18P
-RESET
WR
VDD
DVDD
POWER
From power switch
-SRAM
Key Touch LSI
HG52E35
Working Strage RAM
HM62256ALP-10
— 5 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Initial reset
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 data in the working strage RAM.
Power ON reset
When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU first raises
APO signal to +5V to generat DVDD voltage, then raises RESET signal to +5V. During this period the
gate array, the DSP and the key touch LSI initializes their internal circuit.
CPU (HD6433298A18P)
The 16-bit CPU contains a 32k-bit ROM, a 1k-bit RAM, seven 8-bit I/O ports, an A/D convertor and serial
interfaces. The CPU accesses to the working strage RAM, the DSP and the key touch LSI. The CPU also
controls buttons, LEDs, bender input and MIDI input/output.
Pin No. Terminal In/Out
Function
1
2
P40
P41
Out
Out
Out
Out
Out
KO signal data output
Clock for KO signal data
3
P42
APO (Auto Power Off) signal output. ON: High, OFF: Low
Read enable signal output
Write enable signal output
Not used.
4
P43
5
P44
6
P45
7
P46
Out
In
10MHz clock output
8
P47
Wait signal input. Connected to +5V.
MIDI signal output
9
TXD
RXD
P52
Out
In
10
11
12
13
14
15
16
17
18
MIDI signal input
Out
In
Reset signal output
-RESET
-NMI
VCC
-STBY
VSS
XTAL
EXTAL
Reset signal input
In
Power ON signal input.
In
+5V source
In
Standby signal input. Connected to +5V.
Ground (0V) source
In
In
20MHz clock input
In
20MHz clock input
19, 20 MD1, MD0
In
Mode selection input. (Internal ROM mode --- MD1: Hight, MD0: Low)
Ground (0V) source for internal DAC
Analog input. Connected to the bender volume.
Button input signal input
+5V source for internal DAC
LED segment signal output
+5V source
21
22
AVSS
AN0
In
In
23 ~ 29 P71 ~ P77
30 AVCC
31 ~ 38 P60 ~ P67
39 VCC
40 ~ 56 P27 ~ P10
48 VSS
In
In
Out
In
Out
In
Address bus
Ground (0V) source
57 ~ 64 P30 ~ P37 Ijn/Out
Data bus
— 6 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Gate Array (UPD65005C-578)
Functions of the gate array are;
(1) To decode chip select signals for the working strage RAM, the DSP and the key touch LSI.
(2) To hold the following signals on "Low" during power off.
Read/write enable signals for the DSP and the key touch LSI
10MHz clock for the key touch LSI
(3) To generate button scan / LED drive signals.
The following table shows the pin functions of the gate array.
Pin No.
Terminal
-RESET
-RDAPO
-WRAPO
-LSIS
In/Out
In
Function
1
Reset signal input
2
Out
Out
Out
Out
Out
Out
Read enable signal output
Write enable signal output
3
4
5
Chip select signal for the DSP
Chip select signal for the key touch LSI
10MHz clock for the key touch LSI
Chip select signal for the working strage RAM
Not used.
-HG
6
PHAPO
-SRAM
7
8 ~ 9
KO8 ~ KO9
10 ~ 17 KO7 ~ KO0
18 ~ 20
Out
Button scan / LED drive signal output
Not used.
21
22
GND
PHA
In
In
In
In
In
In
In
In
In
In
Ground (0V) source
10MHz clock input
23
-WR
Write enable signal input
Read enable signal input
APO (Auto Power Off) signal input
KO signal data input
24
-RD
25
-APO
KOC
26
27
KOD
Clock for KO signal data
Address bus
28 ~ 39
40, 41
42
A15 ~ A4
D0, D1
VDD
Data bus
+5V source
LSIS
(Chip select sigal for the DSP)
A4 ~ A15
HG
(Chip select signal for the key touch LSI)
Address decoder
SRAM
(Chip select signal for the working strage RAM)
D0, D1
RDAPO
WRAPO
PHAPO
(Read enable signal controlled by APO)
(Write enable signal controlled by APO)
RD
WR
Controller
PHA
APO
(10MHz clock for the key touchLSI.
Controlled by APO)
KOD
KOC
(Button scan / LED drive signal)
KO0 ~ KO7
Shift register
RESET
— 7 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Digital Signal Processor (HG51A115A01FD)
Upon receipt of note numbers and their velocities, the DSP reads sound and velocity data from the sound
source ROM in accordance with the selected tone; the DSP can read rhythm data simultaneously when a
rythm pattern is selected. Then it provides 16-bit serial signals containing data of the melody, chord, bass,
and percussion to the DAC. The DSP also adds the selected effect to the sound data using a 256k-bit
RAM.
The following table shows the pin functions of the DSP.
Pin No.
1 ~ 8
9, 10
11
Terminal
In/Out
Function
CD0 ~ CD7
In/Out
Data bus
Not used.
GND7
CK16
In
Out
In
Ground (0V) source
16.384MHz clock output
+5V source
12
13
VCC6
CK0
14
In
Clock input. Connected to terminal CK16.
Not used.
15
TCKB
VCC1
GND1
XT0, XT1
SGL
16
In
In
+5V source
17
Ground (0V) source
18, 19
20
In/Out
In
16.384MHz clock input/output. Connected to a crystal oscillator.
System control terminal. Single chip system: Open
Chip select signal input
Addess bus
21
CCSB
CA0 ~ CA3
CE0
In
22 ~ 25
26
In
In
Not used. Connected to ground.
Write enable signal
27
CWRB
CRDB
In
28
In
Read enable signal
29 ~ 32
33
Not used.
RESB
TESB
In
In
Reset signal input
34
Not used. Connected to +5V.
Not used.
35 ~ 39
40 ~ 49
52 ~ 57
RD0 ~ RD15
In
Data bus for the sound source ROM
58
59
RA23
RA22
Out
Out
Out
Not used.
Chip select signal for the sound source ROM
Not used.
60, 61
RA20, RA21
62 ~ 73
75 ~ 82
RA0 ~ RA19
Out
Data bus for the sound source ROM
74
83
GND5
WOK2
VCC3
GND3
WOK1
SOLM
SOLP
BOK
In
Ground (0V) source
Out
In
Word clock output. Not used.
+5V source
84
85
In
Ground (0V) source
86
Out
Out
Out
Out
Word clock for the DAC
Serial data output. Not used.
Serial data output for the DAC
Bit clock output for the DAC
Not used.
87
88
89
90 ~ 92
— 8 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Pin No.
Terminal
In/Out
Function
93
VCC5
In
+5V source
94, 95
97 ~ 105
107,109
110, 112
EA0 ~ EA14
Out
Address bus for the effect RAM
96
106
EWEB
EOEB
VCC7
ECEB
Out
Out
In
Write enable signal output for the effect RAM
Read enable signal output for the effect RAM
+5V source
108
111
Out
Chip select signal output for the effect RAM
Not used.
113 ~ 117
118
VCC4
GND4
In
In
+5V source
119
Ground (0V) source
120 ~ 122
123 ~ 130
131
Not sued.
ED0 ~ ED7
GND5
In/Out
In
Data bus for the effect RAM
Ground (0V) source
132 ~ 134
135, 136
Not used. Connected to ground.
Not used.
Block diagram of DSP and DAC circuit
Sound Source ROM
TC5316200CP-C081
SOLP: Sound data
BOK: Bit clock
CE
A0 ~ A19
D0 ~ D15
WOK1: Word clock
RD0 ~
RD15
RA0 ~
RA19
RA22
DAC
D0 ~ D7
A0 ~ A3
SOLP
ROUT
LOUT
SI
DSP
HG51A115A01FD
BOK
CLK
LSIS
RDAPO
WOK1
LRCK
WRAPO
RESET
UPD6376CX
EWEB
ECEB EOEB
EA0 ~
EA14
ED0 ~
ED15
WE
OE
CS
PG
16.384MHz
D0 ~ D15
A0 ~ A14
Effect RAM (256K-bit)
HM65256BLP
— 9 —
Download from Www.Somanuals.com. All Manuals Search And Download.
DAC (UPD6376CX)
UPD6376CX is a two-channel 16-bit Digital to Analog Convertor consisting of resistor string, output
amplifier and zero offset circuit.
Pin No. Terminal In/Out
Function
Mode selection terminal. Connected to ground.
Ground (0V) source for internal digital circuit
Not used.
1
2
SEL
D.GND
NC
In
In
3
4
DVDD
A.GND
R.OUT
A.VDD
A.VDD
R.REF
L.REF
L.OUT
A.GND
LRCK
LRSEL
SI
In
In
+5V source for internal digital circuit
Ground (0V) source for internal analog circuit
Sound waveform output
5
6
Out
In
7
+5V source for internal analog circuit
+5V source for internal analog circuit
Reference voltage terminal. Connected to a capacitor.
Reference voltage terminal. Connected to a capacitor.
Left channel sound waveform output
Ground (0V) source for internal analog circuit
Word clock (L/R separation signal) input.
Not used. Connected to ground.
8
In
9
In
10
11
12
13
14
15
16
In
Out
In
In
In
In
Sound data input
CLK
In
Bit clock input
Key Touch LSI (HG52E35P)
By counting the time between first-key input signal FI and second-key SI from the keyboard unit, the key
touch LSI detects key velocity of 256-step. Then the LSI sends the CPU the note number and its velocity
data.
Key touch LSI
HG52E35P
Keyboard
KC
KC0
KC7
Reset signal from the CPU
RESB
Key scan signal
Key input signal
Chip select signal from the gate array
Read enable signal from the gate array
Write enable signal from the gate array
Clock from the gate array
CCSB
CWRB
CRDB
CKI
First contact
FI0
SI0
FI
SI
CD0
CD7
Data bus
FI7
Second contact
SI7
Address bus
CA0 ~ CA2
— 10 —
Download from Www.Somanuals.com. All Manuals Search And Download.
The following table shows the pin functions of the key touch LSI.
Pin No.
Terminal
REQB
FI10, SI10
VCC
In/Out
Out
In
Function
Interrupt request. Not used.
1
2, 3
Key input signal
4
In
+5V source
5
CRDB
CWRB
CCBB
T, STBY
RESB
W
In
Read enable signal
Write enable signal
Chip select signal
Not used. Connected to +5V.
Reset signal
6
In
7
In
8, 9
In
10
In
11
In
Not used. Connected to +5V.
10 MHz clock input
Not used. Connected to ground.
Not used.
12
CKI
In
13, 14
TMD, TST
CKO
In
15
Out
In
16
GND
Ground (0V) source
Not used. Connected to ground.
Not used.
17
XIN
In
18
XOUT
TRES
Out
In
19
Not used. Connected to ground.
Data bus
20 ~ 23, 25 ~ 28
CD0 ~ CD7
GND
In/Out
In
24
29 ~ 31
32
Ground (0V) source
Address bus
CR0 ~ CR2
VCC
In
In
+5V source
33 ~ 39, 41 ~ 43
53 ~ 55, 57 ~ 63
FI0 ~ FI9,
SI0 ~ SI9
In
Key input signal
40
44 ~ 47, 49 ~ 52
48, 56
VCC
KC0 ~ KC7
GND
In
Out
In
+5V source
Key scan signal
Ground (0V) source
+5V source
64
VCC
In
Filter Block
Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the
waveforms.
AVDD AVEE
C104(H)
2SC1740SQ
1K
10V22µ
-
10V22µ
From the DAC
1K
1K
+
To main volume
M5218APR
AG
AG
AG
— 11 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Power Amplifier (LA4620)
The power amplifier is a two-channel balanced amplifier with standby switch. The following figure shows
the internal diagram of the amplifier.
Internal Diagram of LA4620
Boot11
OUT11
19
20
+
-
3
5
IN11+
IN11-
Input
Amp.
Power
Amp.
Pre-drive
Amp.
RL Short
Protector
PoGND1
OUT12
Boot21
VCC1
21
22
23
-
4
IN12-
Input
Amp.
Power
Amp.
Pre-drive
Amp.
+
Terminal
Protection
Circuit
Pop Noise
Prevention
Circuit
Ripple
Filter
1
6
PriGND
18
17
Boot21
OUT21
+
9
7
IN21+
IN21-
Input
Amp.
Power
Amp.
Pre-drive
Amp.
-
-
RL Short
Protector
PoGND2
OUT22
Boot22
15
14
12
8
IN22-
Input
Amp.
Power
Amp.
Pre-drive
Amp.
+
16
NC
11
10
13
2
DC
MUTE
VCC2
ADJ
Power Supply Circuit
The power supply circuit generates six voltages as shown in the following table. VDD voltage is always
generated. The others are controlled by APO signal from the CPU.
Name
VDD
Voltage
+5.1V
+5.3V
+5.2V
+5.2V
+12V
For operation of
CPU, Reset IC, Gate array, Working strage RAM
DVDD
AVDD
LVDD
VCC
DSP, Key touch LSI, Sound source ROM, Effect RAM, DAC
DAC, Filter
LED driver
Pilot lamp
VD
+12V
Power amplifier
— 12 —
Download from Www.Somanuals.com. All Manuals Search And Download.
WIRING DIAGRAM
M5712-CN1M
Bender
Volume
CD1
CD2
CD3
CD4
CD5
CD6
CD7
CD8
FI1
FI2
FI0
SI0
SI1
SI2
SI3
FI3
JE5
AG
JE5
JE4
JE3
JE2
JE1
JE4
JE3
JE2
JE1
LMELO OUT
RMELO OUT
RMELO IN
LMELO IN
M5172-MA2M
Main Volume
CC1
CC2
CC3
CC4
CC5
CC6
CC7
CC8
KC0
KC1
KC2
KC3
KC4
KC5
KC6
KC7
CB1
CB2
CB3
CB4
CB5
CB6
CB7
CB8
KC0
KC1
KC2
KC3
KC4
KC5
FI4
A5712-MA1M
SI4
CA1
CA2
CA3
CA4
CA5
CA6
CA7
CA8
KC6
KC7
SI5
SI6
SI7
FI5
BK
R
PS
FI6
FI7
W
O
PR
W
BL
PR
M615T-KY2M
M615T-KY1M
— 13 —
Download from Www.Somanuals.com. All Manuals Search And Download.
MAJOR WAVEFORMS
— 14 —
Download from Www.Somanuals.com. All Manuals Search And Download.
— 15 —
Download from Www.Somanuals.com. All Manuals Search And Download.
PCB VIEW and MAJOR CHECK POINTS
28
24
25
22
23
19
20 21
18
1
27
26
29
14 15 16 17 13
12
2
6
3
5
4
7
8
9 10 11
— 16 —
Download from Www.Somanuals.com. All Manuals Search And Download.
SCHEMATIC DIAGRAMS
Main PCB M5712-MA1M
7
23
25
11.4
5.2
5.3
11.6
11.6
5.9
10.9
2.6
2.6
3.2
5.2
21
2.6
18 19
11.6
0.0
20
5.3
2.6
0.0
0.7
0.0
10.9
5.2
24
22
2.6
3.2
5
2.6
2.6
2.6
5.1
11.8
11.0
13
12
5.2
1
5.8
3.4
14 15
16 17
6
4
28
29
27
0.7
2
8
9 10 11
5.3
0.0
26
3
— 17 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Console PCB M5712-CN1M
— 18 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Keyboard PCBs M615T-KY1M, KY2M
— 19 —
Download from Www.Somanuals.com. All Manuals Search And Download.
EXPLODED VIEW
Download from Www.Somanuals.com. All Manuals Search And Download.
IC LEAD IDENTIFICATION AND INTERNAL DIAGRAM
UPD6376CX
MAIN DAC
SUB DAC
11
10
L.OUT
L.REF
13
LRCK
LRSEL/RSI 14
15
16
SI/LSI
CLK
SUB DAC
9
6
R.REF
R.OUT
4/8 fs SEL
D.GND
1
2
MAIN DAC
12
4
5
8
3
7
A.VDD
A.GND
D.VDD
N.C.
S8053ANO
2
VDD
1
OUT
3
VSS
1
2
3
M5218APR
PC900V
TC74HC04AP
VCC
6
GND
8
7
6
5
5
4
VCC
1A
1Y
1
2
14
VCC
-
+
13 6A
-
2A 3
6Y
5A
5Y
4A
4Y
12
11
10
9
+
GND
4
NC
3
1
2
3
2Y
3A
4
5
6
1
2
3Y
8
GND
7
— 21 —
Download from Www.Somanuals.com. All Manuals Search And Download.
Q4: 2SB1274
Q2: 2SD1762E,F
B
C
E
B
C
E
Q3, Q5, Q7, Q11/12: 2SC1740SQ
Q13: 2SA933SQ
Q1/6: 2SB1240Q,R
Q14~21: DTA114TS
E
C
B
E
C
B
— 22 —
Download from Www.Somanuals.com. All Manuals Search And Download.
PARTS LIST
CTK-750
Notes: 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
separately.
3. The numbers in item column correspond to the same
numbers in drawing.
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N.R.Yen
N
Item Code No.
Parts Name
Specification
Q
M
R
*
Unit Price
PCB Ass'y M5712-MA1M
2010 4928 LSI
2011 3325 LSI
2011 5194 LSI
2011 5201 LSI
2011 5810 LSI
2011 6867 LSI
2011 7196 LSI
2011 7203 LSI
2105 2219 IC
2105 3164 IC
2114 1421 Photo-coupler
2114 1799 IC
2114 1883 IC
2250 0441 Transistor
2251 0140 Transistor
2251 0672 Transistor
2252 0497 Transistor
HM65256BLP-10
UPD6376CX
HG52E35P
HG51A115A01FD
UPD43256AC-85L,10L
UPD65005C-578
TC5316200CP-C081
HD6433298A18P
S-8053ANO
HD74HC04P
PC900V
M5218APR
LA4620
2SA1267Y-AT-T
2SB1240Q,R-TV6-T
2SB1548-P.CS
2SC3199Y-AT-T
2SD1762E,F
DTA114TS-TP-T
MTZJ5.1AT-77-T
MTZJ5.6CT-77-T
HZS6B2LTD-T
RD5.1JSB3-T1-T
DSK10B-BT-T
RB100A-T32-T
1SS133T-77-T
1
1
720
230
600
2,820
620
220
1,230
880
60
28
210
38
350
9
10
44
9
47
10
8
8
9
9
11
29
3
39
100
64
2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
C
C
C
C
B
B
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
H
C
F
T
F
C
N
J
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
N
N
N
N
B
A
C
A
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
N
1 10
2 10
1 10
5 10
2253 0455 Transistor
1
1
2259 1883 Digital transistor
2360 1729 Zener diode
2360 1946 Zener diode
2360 2254 Zener diode
2360 2261 Zener diode
2390 0371 Diode
8 10
1 10
1 10
1 10
1 10
3 10
1 10
5 20
N
N
2390 1323 Diode
2390 1344 Diode
2390 1463 Schottky diode
2590 1519 Crystal oscillator
2590 1547 Ceramic oscillator
2606 1141 Carbon film resistor
2606 1148 Carbon film resistor
2606 1155 Carbon film resistor
2606 1162 Carbon film resistor
2606 1169 Carbon film resistor
2606 1176 Carbon film resistor
2606 1183 Carbon film resistor
2606 1197 Carbon film resistor
2606 1232 Carbon film resistor
2606 1253 Carbon film resistor
2606 1302 Carbon film resistor
2606 1309 Carbon film resistor
2606 1323 Carbon film resistor
2606 1330 Carbon film resistor
2606 1337 Carbon film resistor
2606 1358 Carbon film resistor
2606 1372 Carbon film resistor
2606 1428 Carbon film resistor
2606 1435 Carbon film resistor
2606 1491 Carbon film resistor
2606 1694 Carbon film resistor
2606 1708 Carbon film resistor
2606 1722 Carbon film resistor
2606 1757 Carbon film resistor
2800 9091 Electrolytic capacitor
Notes: N – New parts
SB20-03B
HC-49U16384
1
1
1
5
1
5
N
EFO-EC2005C4
R-20-1K-J-T23-T
R-20-220-J-T23-T
R-20-330-J-T23-T
R-20-10-J-T23-T
R-20-100-J-T23-T
R-20-100K-J-T23-T
R-20-10K-J-T23-T
R-20-22-J-T23-T
R-20-82-J-T23-T
R-20-4.7K-J-T23-T
R-20-270-J-T23-T
R-20-470-J-T23-T
R-20-56K-J-T23-T
R-20-68K-J-T23-T
R-20-1M-J-T23-T
R-20-3.3K-J-T23-T
R-20-33K-J-T23-T
R-20-5.6K-J-T23-T
R-20-560-J-T23-T
R-20-6.8K-J-T23-T
R-20-68-J-T23-T
R-20-47-J-T23-T
R-20-2.2-J-T23-T
R-20-6.8-J-T23-T
25RE2-220-T2-T
16 20
4 20
1 20
5 20
33 20
9 20
7 20
8 20
2 20
2 20
1 20
36 20
22 20
1 20
1 20
3 20
11 20
2 20
1 20
1 20
2 20
4 20
4 20
4 20
1 10
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
33
N
N
M – Minimum order/supply quantity
R – Rank
— 23 —
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N
Item Code No.
Parts Name
Specification
25RE3-2200-S1
Q
M
N.R.Yen
R
*
Unit Price
75
16
16
18
26
14
14
20
27
27
18
9
2802 9231 Electrolytic capacitor
2803 6743 Electrolytic capacitor
2803 6750 Electrolytic capacitor
2803 6757 Electrolytic capacitor
2805 3061 Electrolytic capacitor
2805 3134 Electrolytic capacitor
2805 3142 Electrolytic capacitor
2807 1015 Electrolytic capacitor
2807 1040 Electrolytic capacitor
2807 1082 Electrolytic capacitor
2807 1091 Electrolytic capacitor
2813 1722 Semiconductive capacitor
2813 2597 Ceramic capacitor
2813 3283 Ceramic capacitor
2813 3381 Semiconductive capacitor
2813 3388 Semiconductive capacitor
2818 0446 Ceramic capacitor
2818 3275 Ceramic capacitor
2830 6229 Mylar capacitor
2845 0168 Module capacitor
2845 3213 Three-polarity capacitor
2845 3220 Ferrite beads
3025 0826 EMI filter
3501 4816 DIN jack
3501 5012 DC jack
3501 7651 Connector
3501 7658 Connector
3501 7665 Connector
3501 7672 Connector
3612 0711 Miniature jack
3612 0789 Jack
2 10
2 20
2 20
2 20
1 10
10 20
2 20
2 10
3 10
8 10
6 20
2 20
1 20
22 20
2 20
2 20
22 20
2 20
6 10
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
A
C
C
C
C
B
B
C
C
C
C
C
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
A
A
A
A
A
A
A
A
A
A
B
B
B
A
B
G
N
N
N
50RBP2-R22-T2-T
50RBP2-R33-T2-T
50RBP2-4R7-T2-T
6.3RE2-220-T2-T
10RE2-22-T2-T
16RE2-10-T2-T
16RE2-47-T2-T
6.3RE2-470-T2-T
16RE2-100-T2-T
6.3RE2-100-T2-T
DD407SR104K16-T
RT-HE40TKCH080D-T
UP050F104Z-A-B
DD404SR152K16-T
DD404SR182K16-T
RT-HE40TKYB101K-T
RT-HE40TKCH220J-T
AMZV-104K50-T
CNB8X101K
EXC-ECT223ZVT-T
EXC-ELDR35V-T
EXC-EMT222DT-T
YKF51-5051
HEC2305-01-920
S8B-PH-K-E
S8B-PH-K-M
S8B-PH-K-R
S8B-PH-K-Y
YKB21-5101
5
8
5
5
4
5
N
N
13
58
14
12
21
110
25
25
25
25
25
90
60
150
65
26
140
700
11,110
3
5
2 10
20 10
3 10
1
1
1 10
1 10
1 10
1 10
1 10
1
1
1
1
5
5
1
5
YKB21-5010
3719 2695 Heat sink
3719 4032 Heat sink
3841 0539 Inductor
3841 0819 Common mode coil
4317 4242 Blank PCB M5712-MA1M
6922 4200 PCB ass'y M5712-MA1M
PCB Ass'y M5712-MA2M
2765 1211 Slide volume
OSH2742-L25-SP
UOT-10CS25-SPL
ELE-V100KR-T
PLT09H-2003R
M211741B-1
2 20
1
1
1
1
1
1
N
N
M211743*1
B CC
EWA-MJCC20B23
DF5H05070-8000M
M211741B-2
1
1
110
16
8
360
A
C
C
C
B
A
A
D
N
N
N
JE
3719 4214 Ribbon cable M712B
4317 4262 Blank PCB M5712-MA2M
6922 4230 PCB ass'Y M5712-MA2M
PCB Ass'y M5712-CN1M
2114 3318 IC
1 20
1
1
5
1
M312162*1
BA612
LN28RPX-(TT)
LB-603VP1
LN882RPX-(TT)
1SS133T-77-T
DF5H13130-8000M
M211742-1
1
5
98
16
240
27
3
36
A
C
C
C
C
C
C
B
B
A
C
A
A
A
D
P
2370 0343 LED
2370 0952 LED
2370 0959 LED
2390 1344 Diode
15 20
1
1
2 20
53 20
2 10
1
1
N JH/JG 3719 4207 Ribbon cable M712A
N
N
4317 4250 Blank PCB M5712-CN1M
6922 4220 PCB ass'y M5712-CN1M
PCB Ass'y M615T-KY1M
1
1
420
1,690
M211744*1
2301 0101 Diode
M111224-1
DS-8P-46-MHTRASKA
DS-8P-46-MHTRASKB
64
1
1
1
1
1
8
110
130
C
C
C
A
B
B
CA
CB
3501 7588 8P connector MHTRASKA
3501 7595 8P connector MHTRASKB
Notes: N – New parts
M – Minimum order/supply quantity
R – Rank
— 24 —
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N.R.Yen
Unit Price
170
N
Item Code No.
Parts Name
Specification
ZCAT2032-0930
M111575-1
M111608*1
M412219-1
Q
M
R
*
3637 5220 Ferrite core
1
1
1
1
1
1
C
C
B
C
B
C
I
4317 3820 Blank PCB M615T-KY1M
6921 8590 PCB ass'y M615T-KY1M
6921 9460 Sponge 60x400
PCB Ass'y M615T-KY2M
260
870
50
1 10
A
2301 0101 Diode
1S2473T-77-T
58 20
8
110
110
170
210
850
50
C
C
C
C
C
B
C
A
B
B
B
C
I
CC
CD
3501 7602 8P connector MHTRASKD
3501 7609 8P connector MHTRASKD
3637 5220 Ferrite core
4317 3830 Blank PCB M615T-KY2M
6921 8600 PCB ass'y M615T-KY2M
6921 9460 Sponge 60x400
Keyboard
DS-8P-48-MHTRASKC
DS-8P-48-MHTRASKD
ZCAT2032-0930
M111576-1
M111609*1
M412219-1
1
1
1
1
1
1
1
1
1
1
1 10
A
1
2
3
4
5
6
7
8
9
6920 7581 TR white key set CEGB
6920 7591 TR white key set DFAS
6920 7601 TR white key set DFA
6920 7611 TR black key set 10P
6920 7621 TR black key set 5P
6920 7560 PET-TAC-TR29
6920 7570 PET-TAC-TR32
6921 8610 KB chassis HTRASK61GD
6921 8621 Upper stopper HTRASK
6921 8631 Lower stopper HTRASK
Bender
M111223A-1
M111222A-1
M111221A-1
M111220A-1
M111220A-2
M111224-1
M111225-1
M111547-1
M412168A-1
M412169A-1
5
1
4
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
180
180
160
230
150
350
370
650
130
110
C
C
C
C
C
C
C
C
C
C
C
C
B
C
B
D
D
G
B
B
10
2765 1141 Volume
3719 4270 Ribbon cable M712D
6909 2170 Bender knob
6911 5241 Bender chassis A
6911 5250 Bender chassis B
6911 5260 Bender spring
6911 5390 Felt 152A
RK1631110-50KB
DF0H03390-35353535
M31488-2
M31487A-1
M41946-1
M41949-1
M42037-1
M412026-1
M4382-4
1
1
190
29
47
45
16
15
8
C
C
C
C
C
C
C
C
C
C
A
A
A
A
A
A
A
A
N
11
12
1 10
1 10
1 10
1 10
1 10
1 10
2 20
1 20
6921 0550 Felt 5X13
6922 4760 Felt D
6
6
N
N
Upper Case
13
14
15
16
17
18
19
20
21
22
23
24
25
26
6922 4301 Upper case sub ass'y
6921 5040 Slide volume knob 601
6922 4270 Panel 712
M111786A*1
M311860-1
M312134-1
12G30BFB
M312131-1
M312132-1
M312088-1
M312082-2
M312122-1
M312123-1
M211727-1
M312125-1
M312125-2
1
1
2,710
13
120
330
130
70
97
29
31
32
130
72
73
73
39
C
B
C
B
B
B
B
B
B
B
B
B
B
B
C
C
C
C
C
T
A
B
D
B
B
B
A
A
A
B
B
B
B
A
A
A
A
A
1 10
N
N
N
N
1
2
1
1
1
1
1
1
1
1
3831 0672 Speaker
6922 4310 Rubber button 712A
6922 4320 Rubber button 712B
6922 2660 Rubber button 710C
6922 2680 Rubber button 710D
6922 3830 Rubber button 711A
6922 3840 Rubber button 711B
6922 3860 Rubber button 711F
6922 3870 Rubber button 711D
6922 3880 Rubber button 711D
6922 3890 Rubber button 711E
3035 0315 Ferrite core
3719 2422 Ribbon cable M288S
3719 4046 Ribbon cable M584R
6922 5420 Sponge 42X68
6910 9170 Sponge 84
Lower Case
6922 4281 Lower case sub ass'y
Notes: N – New parts
5 10
1 10
1 10
1
1
1
1
2 10
1 20
1 20
2 20
2 20
1
5
5
5
M312126-1
N
N
N
BP59RB140070N0M
DF5H02260-35353535
DF0H02300-35353535
M411740-2
23
20
22
14
M41661-1
27
M111787A*1
— 25 —
1 1
1,820
C
Q
M – Minimum order/supply quantity
R – Rank
Download from Www.Somanuals.com. All Manuals Search And Download.
FOB Japan
N
Item Code No.
Parts Name
Specification
M41226-1
M41330-1
M411615-1
M41109-3
CS-3
M412141-1
M412281-2
M311164D*1
Q
M
N.R.Yen
Unit Price
R
*
27-1 6902 6140 Battery spring 90
27-2 6903 2150 Battery spring B
27-3 6919 3190 Key damper 61
6917 9300 Rubber foot
1 10
1 10
1
5 20
2 20
1 10
2
1
27
18
55
6
B
B
B
C
C
C
C
B
A
A
A
A
A
A
B
C
5
6920 2290 Clip
6921 5490 Sponge 425X54
9
N
N
N
44
65
200
28
29
6922 4290 Packing 845X22
6918 1634 Battery cover sub ass'y
Screws
5
1
30
31
32
33
34
35
36
37
0009 2680 Screw
0009 2682 Screw
5111 2571 Screw
0009 5791 Screw
6919 0420 Screw
0009 6417 Screw
5111 2679 Screw
0009 2698 Screw
Accessory
4 x 8
2.6 x 8
3 x 8
3 x 20
3 x 8
4 x 10
3 x 8
10 50
20 50
8 50
15 50
6 50
20 50
38 50
16 50
2
2
2
2
2
2
2
2
C
C
C
C
C
C
C
C
A
A
A
A
A
A
A
A
3 x 14
6920 8691 Music stand 590
M311760A-1
1
1
130
C
B
Notes: N – New parts
M – Minimum order/supply quantity
R – Rank
— 26 —
Download from Www.Somanuals.com. All Manuals Search And Download.
MA0300941A
Download from Www.Somanuals.com. All Manuals Search And Download.
|
Beko Washer WKB 61031 PTM User Manual
Black Box Computer Monitor IC147A R2 User Manual
Blanco Indoor Furnishings 157 170 User Manual
Bolens Lawn Mower 115 040A User Manual
Bravetti Slow Cooker BKC203 User Manual
Bushnell Binoculars 11 1211 User Manual
Carrier Air Conditioner 40QA024 060 User Manual
Casio Digital Camera E MULTI PJ CAMERA Multifunctional Camera System User Manual
Cisco Systems IP Phone 7906 7911G User Manual
Cisco Systems Network Card WAP121 User Manual