CASIO CTK 671 Electronic Keyboard Service Manual

CTK-671
JUN. 2001
PLAY
RECORD
STEP RECORD
(TIE)
3
MAX
FULL RANGE
CHORD
FINGERED
CASIO CHORD
NORMAL
MIN
REST
BANK
/NO
/YES
STORE
CTK-671
ELECTRONIC KEYBOARD
INDEX
Ver.1 : SEP.2001
CONTENTS
Page
Specifications .......................................................................................................................................................... 1
Block Diagram ......................................................................................................................................................... 3
Circuit Description ................................................................................................................................................... 4
Printed Circuit Boards ............................................................................................................................................. 5
Schematic Diagrams ...............................................................................................................................................7
Exploded View ...................................................................................................................................................... 12
Parts List ............................................................................................................................................................... 13
SPECIFICATIONS
GENERAL
Keyboard:
61 standard-size keys, 5 octaves with touch response (Off / Light / Normal / Heavy)
Tones:
348 total (100 panel tones + 128 GM tones + 10 drum sounds + 10 user tones + 100
Advanced Tones); layer/split
Rhythm Instrument Tones:
61
Polyphony:
32 notes maximum (16 for certain tones)
Effects:
DSP (110 types: internal, 10 user areas) + Reverb (16 types) + Chorus (16 types)
Equalizer:
10 types, 4 bands
Auto Accompaniment
Rhythm Patterns:
Tempo:
Chords:
Rhythm Controller:
Accomp Volume:
One-touch Presets:
Auto Harmonize:
Memory Function
Songs:
Recording Tracks:
Recording Methods:
Memory Capacity:
Edit Function:
Demo Tunes:
Synthesizer Function
Parameters:
Registration Memory
Number of Setups:
Memory Contents:
104 (internal, 4 user areas)
Variable (226 steps, = 30 to 255)
3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD)
Start/Stop, INTRO/ENDING 1 and 2, VARIATION/FILL-IN 1 and 2, SYNCHRO/FILLIN NEXT
0 to 127 (128 steps)
Recalls settings for tone, tempo, layer on/off, and harmonize on/off in accordance
with rhythm.
Automatic addition of notes that harmonize with melody note in accordance with specified Auto Accompaniment chords.
2
6 (2 through 6 are melody tracks)
Real-time, step
Approximately 3,500 notes (total for two songs)
* Same memory is shared for user rhythm storage.
Equipped
2
Tune Number
Name
Composer
Play Time
0
Crystal Fountain
Edward Alstrom
1:54
1
Night Breeze
Hage Software
1:52
Attack time; release time; resonance; cutoff frequency; vibrato type; vibrato delay;
vibrato depth; vibrato rate; octave shift; level; touch sense; reverb send; chorus send;
DSP line; DSP type and DSP parameter
16 (4 setups × 4 banks)
Tone select, Rhythm select, Tempo settings, Split on/off, Split point settings, Layer on/
off, Mixer settings (Channels 1~10), Effect settings, Equalizer settings, Touch Response settings, Assignable jack setting, Transpose settings, Tuning settings, Accompaniment volume settings, Harmonize on/off
—1—
Mixer Function
Channels:
Parameters:
16
Channel on/off; tone; part on/off; volume; pan pot; octave shift; coarse tune; fine tune;
reverb send; chorus send; DSP line
MIDI:
16 multi-timbre receive, GM Level 1 standard
Other Functions
Transpose:
Tuning:
LCD:
49 steps (–24 semitones to +24 semitones)
Variable (A4 = approximately 440Hz ±100 cents)
Adjustable contrast
Terminals
MIDI Terminals:
Sustain/
Assignable Terminal:
Headphone/
Output Terminal:
IN, OUT
Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Stereo standard jack
Output Impedance: 140 ohms
Output Voltage: 4.5V (RMS) MAX
Power Supply Terminal: 9V DC
Power Supply:
Batteries:
Battery Life:
AC Adaptor:
Auto Power Off:
Dual power supply system
6 D-size batteries
Approximately 4 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.
Speaker Output:
2.5W + 2.5W
Power consumption:
9V
Dimensions:
96.0 × 37.5 × 14.7 cm (37 13/16 × 14 3/4 × 5 13/16 inch)
Weight:
Approximately 5.8 kg (12.8lbs) (without batteries)
7.7W
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—
LCD Driver
CONT
RAM
(1Mbit)
UPD441000LGZ
LSI5
DB0
~
DB7
E
R/W
RS
Q1
P10 ~ P13
MSW0 ~ MSW3
MODE SWITCH
CK0,LRC0,SC0,LRC1
CPU
(uPD914GM-3ED)
EA0 ~ EA16
ED12 ~ ED19
Buttons
LSI1
MIDI IN
MIDI OUT
IC4
IC5
—3—
Reset
IC
MA0 ~ MA3 IC8
VDD
+3.3V
VCC DVDD AVDD
+9V
+5V
+5V
ROM
(32Mbit)
MD0 ~ MD15
LSI3
MA0 ~ MA20
RAM
(256kbit)
MD0 ~ MD7
CD0 ~ CD15
FI8 ~ FI10
KI0 ~ KI2
Key
Controller KC0 ~ KC7
Keyboard
CA0 ~ CA3
LSI2
SI0 ~ SI7
CLK
FI0 ~ FI7
DO
WCK0
DAC
Filter
IC11
FVDD
+5V
LSI4
MA0 ~ MA13,MA25
Main
Volume
Power Amp
Power supply Circuit
Speakers
BLOCK DIAGRAM
DI
CLK
WCKIO
WCKI1
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
KC2
KC3
KC4
KC5
KC6
KC7
TONE
7
8
9
4
5
6
1
2
3
-
0
SPLT
EXIT
ENTER
LAYER
TEMPO
DOWN
LEFT
RIGHT
BUTTON MATRIX
FI8
FI9
KC0
ONE
TOUCH
SONG
REVERB
EQUALIZER RNYTHM
CHORUS
SYNTH
TRANSPOSE
MEMORY
ACCOMP
FI10
DSP
MIXER
SPECIAL
+
VOLUME
INTRO/
VARIATION SYNCHRO AUTO
KI0
DEMO
ENDING1 /FILL-IN1 /CROSS FILL HIARMONIZE
INTRO/
VARIATION START/
TEMPO
KI1 STORE
ENDING2 /FILL-IN2
STOP
UP
KI2
BANK
A
B
C
—4—
D
PRINTED CIRCUIT BOARDS
Main PCB JCM703-MA1M
Top View
Bottom View
—5—
Sub PCB KDM703-MA2M
—6—
SCHEMATIC DIAGRAMS
Main PCB JCM703-MA1M
—7—
Sub PCB JCM703-MA2M
—8—
Display PCB JCM703-LCD1M
—9—
Keyboard PCBs JCM618T-KY1M/KY2M
— 10 —
PCBs CONGDE JCM703-CN1/CN2
— 11 —
EXPLODED VIEW
34
33
24
32
22
23
20
18
19
21
16
15
8
7
17
4
25
10
13
14
30
9
28
30
31
27
4
26
29
1
35
12
36
14
11
3
2
6
41
40
5
38
37
39
— 12 —
PARTS LIST
CTK-671
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.
PARTS PRICE LIST
CTK-671
N
ITEM
CODE NO.
PART NAME
MAIN PCB
1 1005 9366 PCB ASSY(MA1M)
D1-D4
6930 4610 DIODE
FL2
3025 1862 FILTER/EMI
IC1
2105 4158 IC/MOS
IC11
6931 0466 IC/MOS
IC12
6930 9999 IC/L-MOS
IC13
6930 9995 IC/L-MOS
IC2
7911 3782 IC/MOS
IC3
2105 4746 LSI
IC4,IC5
2105 6576 IC/C-MOS
IC6
6930 9980 IC/C-MOS
IC7-IC9
6930 9981 IC/C-MOS
LSI1
1005 4502 LSI
LSI2
2012 5987 LSI
LSI3
1005 3636 LSI
LSI4
1005 3638 LSI
LSI5
1005 3639 LSI
Q1
6930 0298 TRANSISTOR
X1
1005 9360 OSCILLATOR/CRYSTAL
SUB PCB ASSY
2 1005 9365 PCB ASSY(MA2M)
D301,D302
2390 3021 DIODE
D303-D305,D310
2315 3132 DIODE
D306
2360 0644 DIODE/ZENER
D307
2360 3084 DIODE/ZENER
IC301
1004 3474 IC/MONOLITHIC
IC302
2114 1421 IC/PHOTO COUPLER
IC304
2121 0072 IC/MONOLITHIC
J301
3501 7049 JACK/DC
J302
3612 0665 JACK/PHONE
J303
3612 0789 JACK
J304
3501 4816 JACK/DIN
Q301
2251 0672 TRANSISTOR
Q303
2250 1591 TRANSISTOR
Q304,Q308,Q309,
2250 1592 TRANSISTOR
Q312-314
Q305
6930 0356 TRANSISTOR
DISPLAY PCB
3 1006 4963 PCB ASSY(LCD1M)
IC502,IC503
6930 9991 IC/L-MOS
LSI501
1000 6502 LSI
CONSOLE PCB
4 1005 9367 PCB ASSY(CN1,2)
D401
6930 4806 LED
VR401
2765 2213 VOLULME
KEYBOARD PCB
5 1002 5799 PCB ASSY(KY1M)
6 1005 9370 PCB/ASSY(KY2M)
D501~D564
2301 0101 DIODE
D565~D622
2301 0101 DIODE
Notes:N- New parts
Q- Quantity used per unit
R- Rank
- 13 -
SPECIFICATION
Q
PRICE CODE
R
TK-M241620*1(M703)
DA227
NFM51R00P206
TA75S393F(TE85L)
XC6203E332PR
TC7WH123FK(TE85L)
TC7SZ08FU(TE85L)
RN5VD27AA-TR
UPD6379GR-E1
TC74LCX245FT(EL)
TC74VCX00FT(EL)
TC74VHCT08AF (EL)
UPD914AGM-3ED
TC190C020AF-001
MR27V3202E-86MA-N
UPD43256BGU-A85-E2
D441000LGZB70XKJE4
2SC4081T106R
SMD-49-16.384M
1
4
1
1
1
1
1
1
1
2
1
3
1
1
1
1
1
1
1
EC
AA
AC
AC
AF
AF
AD
AC
AO
AF
AH
AC
CK
BC
BT
AW
BJ
AD
AI
A
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
TK-M241622*1(M703)
SRT14
1SS133T-77
HZS5BLLTD
HZS5.6NB3TD
LA4635A
PC900V
NJM2068DD
HEC2305-01-330
YKB21-5006
YKB21-5010
YKF51-5051
2SB1548-P.CS
2SB1237TV2R
1
2
4
1
1
1
1
1
1
1
1
1
1
1
CV
AF
AA
AA
AA
AN
AK
AD
AC
AG
AC
AH
AD
AB
B
B
B
B
B
A
B
A
A
B
B
B
A
A
2SC1740STPR
6
AA
A
2SD1862TV2R
1
AC
A
TK-M241650*1(M703)
TC7SET08FU(TE85L)
ML9040-B02GA
1
2
1
CY
AC
AU
B
A
A
TK-M241624*1(M703)
EL-204HD/TR2-1(A)
RS20H121-2KB
1
1
1
BY
AA
AD
B
B
A
TK-M140687*7(M474)
TK-M140688*10(M703)
1S2473-T-77-T
1S2473-T-77-T
1
1
64
58
BV
BJ
AA
AA
B
B
B
B
N
ITEM
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
D506,D509
37
38
39
40
41
CODE NO.
PART NAME
KEYBOARD UNIT
6922 2721 WHITE KEY SET/LT
6922 2731 WHITE KEY SET/LT
6906 8482 BLACK KEY SET 10P
6906 8592 BLACK KEY SET 5P
6922 2762 RUBBER/KEY
6922 2772 RUBBER/KEY
PANEL UNIT
1005 3647 LCD
1005 9358 SPEAKER
1004 7853 RUBBER/BUTTON
1004 7854 RUBBER/BUTTON
1004 7855 RUBBER/BUTTON
1004 7856 RUBBER/BUTTON
1004 7857 RUBBER/BUTTON
1004 7858 RUBBER/BUTTON
1004 7859 RUBBER/BUTTON
1004 7860 RUBBER/BUTTON
1004 7861 RUBBER/BUTTON
1005 9359 CASE SUB ASSY/UPPER
6927 0510 CONTACT/SL
1002 7158 CONNECTOR
6930 7200 PIECE/TOP 476-L
6930 7201 PIECE/TOP 476-R
6930 7202 FILM
1003 7738 SPONGE
1003 0993 PLATE/BL
1005 3931 PANEL/DISPLAY
6922 4480 DUMPER/KEY
6921 5030 KNOB/SLIDE
1006 2649 REFLECTOR
1003 7737 FACE/D
1003 2149 LED
COMPONENT
1005 9361 CASE SUB ASSY/MUSIC
6906 9252 PLATE/LOWER
1003 7742 BATTERY COVER SUB ASSY
6903 2150 SPRING/BATTERY(+)
6902 6141 SPRING/BATTERY(-)
6928 5280 STAND ASSY/MUSIC
Notes:N- New parts
Q- Quantity used per unit
R- Rank
- 14 -
SPECIFICATION
Q
PRICE CODE
R
M312118A*1
M312118A*2
M140369B-3
M140369B-4
M211704B-1
M211705B-1
4
1
2
1
4
1
AP
AP
AM
AI
AF
AF
A
A
A
A
B
B
CG1902-TTP
12K60SHA9225C
M341423-1
M241550-1
M241543-1
M241544-1
M241545-1
M241546-1
M241547-1
M241548-1
M241549-1
M241619*1
CSB-08D
M441141-1
M441142A-1
M441143A-1
M441144A-1
M441167-1
M341362-1
M141171-1
M412324-1
M311859-1
M241321A-2
M441174-1
FY4067S-2C1-B170
1
2
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
1
2
1
1
2
BM
AT
AA
AA
AD
AD
AD
AD
AC
AB
AD
CZ
AD
AI
AA
AA
AA
AA
AT
AQ
AE
AA
AO
AA
AD
B
B
B
B
B
B
B
B
B
B
B
B
C
C
X
X
C
C
C
C
C
B
B
X
B
M141274*1
M240573B-2
M341235*3(M476)
M41330-1
M41226A-1
M340769*2 TK
1
1
1
1
1
1
CN
AS
CF
AA
AB
AW
X
X
B
X
X
X
Ver.1 : Correction of all contents except exploded view and parts list.
Because Service Manual for CTK-671 in Vol.CB-15 contains
totaly wrong information.
CASIO TECHNO CO.,LTD.
Overseas Service Division
Nishi-Shinjuku Kimuraya Bldg. 1F
5-25, Nishi-Shinjuku 7-Chome
Shinjuku-ku, Tokyo 160-0023, Japan