Casio CTK-810 User manual

ELECTRONIC KEYBOARD
(without price)
CTK-810
APR. 2007
CTK-810
Ver.1 : May. 2005
INDEX

CONTENTS
Specifications ---------------------------------------------------------------------------------------------- 1
Block Diagram --------------------------------------------------------------------------------------------- 2
Circuit Description --------------------------------------------------------------------------------------- 3
Printed Circuit Boards ---------------------------------------------------------------------------------- 5
Disassembly ------------------------------------------------------------------------------------------------ 7
Diagnostic Program ------------------------------------------------------------------------------------ 12
Exploded View ------------------------------------------------------------------------------------------- 14
Parts List--------------------------------------------------------------------------------------------------- 15
Schematic Diagrams ----------------------------------------------------------------------------------- 18

– 1 –
SPECIFICATIONS
GENERAL
Keyboard: 61 standard-size keys
Tones: 515; with layer and split
Polyphony: 32 notes maximum (16 for certain tones)
Auto Accompaniment: Rhythm Patterns : 120
Tempo :Variable (226 steps, = 30 to 255)
Chords : 3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD)
Rhythm Controller :START/STOP, INTRO, NORMAL/NORMAL FILL-IN,
VARIATION/VARIATION FILL-IN, SYNCHRO/ENDING
Accomp Volume :0 to 127 (128 steps)
One Touch Presets : Recalls settings for tone, tempo, layer, and split.
3-step Lesson: 3 lessons (Step 1, 2, 3)
Playback : Repeat play of a single tune
Evaluation Mode : Scoring
Voice Fingering Guide
: On/Off
Song Bank Number of Tunes: Song Bank : 100
Download songs:Up to 5 (Capacity: Approximately 70 KB *)
*Calculated based on 1 KB =1024 bytes.
Controllers : PLAY/STOP, PAUSE, FF, REW, REPEAT, LEFT/RIGHT
Musical Information Function
: Tone, Auto Accompaniment, Song Bank, numbers and names; staff notation,tempo,
metronome, measure and beat number, step lesson display, chord name, fingering,
pedal operation, Keyboard, Voice Fingering Guide, Evaluation Mode, Recorder indicator
Metronome: On/Off
Beat Specification : 0, 2 to 6
Registration Memory: Number of Setups : 32 (4 setups x 8 banks)
Recorder Number of Songs :Two (1 Lesson Recording, 1 Performance Recording)
Recorded Data :Lesson Recording : Right-hand part, left-hand part, both-hand parts
Performance Recording: Track 1 (chord accompaniment),
Track 2 (melody)
Recording Method : Real-time
Memory Capacity : Approximately 12,000 notes (total for two songs)
Other Functions Transpose : 25 steps (–12 semitones to +12 semitones)
Tuning : 101 steps (A4 = approximatery 440Hz ±50Cents)
Terminals USB port : TYPE B
Sustain/Assignable Jack : Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Headphone/Output Termina : Stereo standard jack
Output Impedance:150
Output Voltage :4.5V (RMS) MAX
Power Jack: 9V DC
Power Supply: 2-way
Batteries : 6 AA-size batteries
Battery Life : Approximately 2.5 hours continuous operation on alkaline batteries
AC Adaptor: AD-5
Auto Power Off : Turns power off approximately 6 minutes after last key operation.
Enabled under batter power only, can be disabled manually.
Speaker Output: 2.5W + 2.5W
Power Consumption: 9V 7.7W
Dimensions: 94.5 ✕37.3 ✕13.1 cm (37 1/4 ✕14 11/16 ✕5 1/8 inch)
Weight: Approximately 4.8 kg (10.6 lbs)(without batteries)

– 2 –
BLOCK DIAGRAM
MPU
IC3
ML6763B-NNWA-116
KEYBOARD PCBs(M708-KYA1/KYA2)
M708-KYA1 M708-KYA2
PEDAL
ADIN
APO
PWSW
DB4 ~ DB7
E
RW
RS
TXDO
RXDI
TXDO
RXDI
PWSW
DB4 ~ DB7
E
RW
RS
MD0 ~ MD15
MA1 ~ MA16
MA1 ~ MA22 ROM (64Mbit)
IC12
MR27T6402L0GKTN03D
SI0 ~ SI3
FI0 ~ FI3
KC0 ~ KC4
SI0 ~ SI9
FI0, FI9
KC0 ~ KC7
SI4 ~ SI9
FI4 ~ FI9
KC5 ~ KC7
RAM (1Mbit)
IC10
CY62126EV30LL
MAIN PCB
(M708-MDA1)
ROUT
LOUT
MD0 ~ MD15
SUB PCB
(M708-PSA1)
(R)
SPEAKERS
(L)
Main
Volume
CONSOLE PCB
(M708-CNA2)
CONSOLE PCB
(M708-CNA1)
Power Supply Circuit
Q303 ~ Q305, D308
VC
(9V)
VA5
(5.3V)
VD5
(5.3V)
IC4
TC7SET04FU
IC6
TC7SET04FU
Filter
IC302
NJM2068D
Power Amplifier
IC301
LA4635A-E
D302 VCP
(9V)
CN803CN802CN801 CN804
CN3
CN311
CN402
CN306
CN3CN2
LCD Controller
IC401
ST7066U-OA
LCD
Buttons
CN4
CN405
Button Controller
IC402
uPD65881GK-1019E7A

– 3 –
CIRCUIT DESCRIPTION
KEY MATRIX
Note: Each key has two contacts, the first conatct 1and second contact 2.
Key
Second contact First contact
FI
KC
SI
21
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
NOMENCLATURE OF KEYS
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
FI0 C21C#21D21D#21E21F21F#21G21
SI0 C22C#22D22D#22E22F22F#22G22
FI1 G#21A21A#21B21C31C#31D31D#31
SI1 G#22A22A#22B22C32C#32D32D#32
FI2 E31F31F#31G31G#31A31A#31B31
SI2 E32F32F#32G32G#32A32A#32B32
FI3 C41C#41D41D#41E41F41F#41G41
SI3 C42C#42D42D#42E42F42F#42G42
FI4 G#41A41A#41B41C51C#51D51D#51
SI4 G#42A42A#42B42C52C#52D52D#52
FI5 E51F51F#51G51G#51A51A#51B51
SI5 E52F52F#52G52G#52A52A#52B52
FI6 C61C#61D61D#61E61F61F#61G61
SI6 C62C#62D62D#62E62F62F#62G62
FI7 G#61A61A#61B61C71
SI7 G#62A62A#62B62C72

– 4 –
BUTTON MATRIX
SWO4
LAYER
SPLIT
7
CASIO
CHORD
RECORDER
START/STOP
PLAY/STOP
SYNCRO/
ENDING
/PAU
SWO5
RIGHT/
TRUCK 2
TONE
9
FINGARD
REVERB/
CHORUS
VARIATION/
FILL-IN
/FF
NORMAL/
FILL-IN
/REW
SWO2
3
STEP 1
5
SONG
BANK
6
BANK
TEMPO-UP
SWO3
METRONOME
SPEAK
0
NORMAL
TRANSEPOSE/
FUNCTION
TEMPO-
DOWN
STEP 3
SWO0
TRATION
4
REGISTRATION
2
+
YES
4
REGISTRATION
1
STORE
SWO1
STEP 2
Ð
NO
2
PIANO
SETTING
1
8
REGISTRATION
3
SWO6
SCORING
LEFT/
TRUCK 1
RHYTHM
FULL
RANGE
CHORD
ONE TOUCH
PRESET
INTRO/
REPEAT
SWI0
SWI1
SWI2
SWI3
SWI4
SWI5
SWI6

– 5 –
PRINTED CIRCUIT BOARDS
Main PCB M708-MDA1
Top View Bottom View
Console PCB M708-CNA1

– 6 –
Keyboard PCB M708-KYA1
Keyboard PCB M708-KYA1
Sub PCB M708-PSA1

– 7 –
DISASSEMBLY
1. Remove the battery cover and then battery.
2. Remove 15 screws and then upper case.
3. Remove two lead wires by soldering.
4. Remove two connectors by soldering.
5. Make the keyboard unit and the main unit apart.
Lead wires
■Precaution while assembling the main Connector 3.
Number of pins on the PCB and pins on the cable are
different.
Start connecting from the NO.1 pin whose color is orange.
Connector (CN2)Connector (CN3)
11 Pin
Connector (CN3)
15 pin

– 8 –
■To remove the main PCB (M708-MDA1).
6. Remove three screws on the PCB (M708-MDA1).
7. Remove two connectors by soldering.
8. Remove the PCB (M708-MDA1).
■To remove the sub PCB (M708-PSA1).
9. Remove four screws on the PCB (M708-PSA1).
10. Remove the connectors by soldering.
11. Remove five lead wires by soldering.
12. Remove the PCB (M708-PSA1).
Connector (CN4) Connector (CN1)
Connector (CN306)
Lead wires
M708-PSA1 PCB
■To remove the console PCBs (M708-CNA1, CNA2).
13. Remove the volume knob.
14. Remove two screws on the PCB (M708-CNA2).
M708-CNA2 PCB
■Precaution while assembling the main Connector 1.
Number of pins on the PCB and pins on the
cable are different.
Start connecting from the NO.1 pin whose color
is orange.
Connector (CN1)
12 pin
10 Pin
Knob

– 9 –
15. Remove 37 screws and then the PCB (M708-CNA1).
Caution while assembling:
6 screws fixating the LCD unit must be screwed on in a
designated order.
When assembling, be sure to tighten the screws in the
order from 1 - 6 shown in the photo.
Failing to do so may cause display malfunctions.
■To remove the speakers.
17. Remove 8 screws and then two speakers.
16. Remove the rubber keys.
14
3 2 6
5
M708-CNA1 PCB
Rubber keys

– 10 –
■To remove the key PCBs (M709-KYA1, KYA2)
18. Remove 21 screws and then the white keys.
19. Remove the black keys.

– 11 –
20. Remove the rubber keys.
Caution while assembling:
There are two types of rubber keys and they are different in length.
The longest rubber key ( ) must be installed at the right end.
1
2222
21. Remove the hooks and then Key PCB.
How to install the rubber keys.
Key PCB (M708-KYA1/KYA2)
1

– 12 –
DIAGNOSTIC PROGRAM
■■
■■
■Initial Setting
1. Connect the AC adaptor.
2. Connect a Sustain pedal.
NOTE: If there is no Sustain pedal, Sustain pedal check can be skipped.
3. Connect to a PC through USB. (A USB driver must be installed on the PC.)
4. “MODE” switch: NORMAL
5. “Main” volume: MAX
■■
■■
■How to start diagnostic program
1. While pressing down “+”, “–”, and “4” buttons at the same time, turn the power ON.
2. The massage “TST” is displayed on LCD.
3. Release “+”, “–”, and “4” buttons.
■■
■■
■Diagnostic program
Message on LCD
1. Button check
1Press “0” button. 00
* Wait for confirmation sound.
2Slide switches or press buttons in the order from No.01 to No.2D. BUTTON NO.
NOTE: The button numbers are written in hexadecimal numerals.
3Press the “LAYER” button the last. COK
* Wait for confirmation sound.
* The Button number appears on the LCD. BUTTON NO.
* A buzzer sounds if buttons are pressed in a wrong order, and “CER” appears
on LCD.
NOTE: This check cannot be aborted in mid-course.
2. AC adaptor check
1Press “–” button. JOK
3. Pedal check
1Press “1” button. TCH
2“Sustain pedal”: ON SUS
3“Sustain pedal”: OFF
00
01
02
03 04 05
06 07
08 09 0
A
0
B
0
C
0
D
0
E
0
F
10 11 12 13 14 1
C
15
17
18 19 1
A
1
B
16
1
D
1
E
1
F
2D
2
C
2524
2
B
2623
2
A
2722
292821
20
COK

– 13 –
Message on LCD
4. ROM check
1Press “2” button. OOK
5. Version check
1Press “3” button. 708
2Press “3” button. 190
3Press “3” button. 180
6. RAM check
1Press “+” button. AOK
7. Sound check
1Press the “7” button. L
* When standing in the center, the tester hears the maximum test sound
fromthe left speaker.
2Press the “8” button. R
* When standing in the center, the tester hears the maximum test sound
from the right speaker.
8. LCD check
1Press the “STEP1” button.
* All character of LCD turns on.
* There is no lack of the dot and the character.
9. Console LED check
1Press the “SPEAK” button.
* Keyboard LED must light in the undermentioned order.
1) DATA ACCESS
2) Song controller indicator
3) Rhythm controller indicator
10.USB check
1Press the “RHYTHM” button. ACT USB
11.APO check
1Press the “TEMPO!” button.
* Go out from TEST mode (Power off).
* The LCD turns off.
DIAGNOSTIC PROGRAM IS FINISHED.

– 14 –
EXPLODED VIEW
R-2
R-1
25
24
23
34
34
13
3
2
1
12
31
29
30
14
16
19
20
18
17
27
22
21
26
5
37
R-2
R-3
15
32
33
28
8
10
9
4
11
6
7
35
36
39
38

– 15 –
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 LIST
CTK-810

– 16 –
1 CTK-810_DI
2 CTK-810_EU
3 CTK-810_UK
4 CTK-810_US
1234
Main PCB
N 1 10271791 PCB ASSY/MAIN TK-RJM507852*001 1111 CXA
N IC1 10269340 IC XC6403FY51PR 1111 AEC
N IC2 10269339 IC XC6216B332PR 1111 AFC
IC13 10123002 IC TC74VHC174FT(EL) 1111 ADC
IC7 10197555 IC TC7SZ14FU(TE85L.F) 1111 AEC
IC8 10197809 IC TC7WH123FU(TE12L.F 1111 AEC
N IC10 10261872 LSI CY62126EV30LL45ZST 1111 ASC
N IC12 10269429 LSI MR27T6402L0GKTN03D 1111 BFC
D1-3 10009218 DIODE 1SS400TE61 3333 AAC
IC4,IC6 10216444 IC TC7SET04FU(TE85L.F 2222 ADC
IC11 10179619 IC TC7SZ04FU(TE85L.F) 1111 AAC
IC9 10197554 IC TC7SZ126FU(TE85L.F 1111 AEC
N L10 10193074 COIL DLW21HN181SQ2L 1111 ACC
NL1,3,4,5,
6,9,11,12 10238668 CHIP BEAD CORE EBMS160808A102 8888 AAC
N L2 10238669 FERRITE BEAD EBMS201209A102 1111 AAC
Q3 10153685 FET 2SJ346(TE85L.F) 1111 AAC
Q1,Q2 10202670 TRANSISTOR KTA2014-GR-RTK/P 2222 AAC
N CN6 10236622 CONNECTOR USB-4FBRS30NB2 1111 ACC
Sub PCB
N 2 10271790 PCB ASSY/PSA1 TK-RJM507856*001 1111 BQB
IC301 10206337 IC LA4635A-E 1111 ANC
IC302 10206677 IC NJM2068D-D 1111 AHC
J301 10209462 JACK DJ-0702O*015 1111 AAC
J303 10206815 CONNECTOR JY-6314*01-030 1111 AAC
J302 10213695 JACK JY-6316*01-070 1111 ACC
L302 10206672 COIL R2318-RB53856396NP 1111 AAC
L301,303 10206680 COIL R2318-RB53856397NP 2222 AAC
Q305 10206676 TRANSISTOR KTC2026-Y-U/P 1111 ABC
Console PCBs
N 3 10271794 PCB ASSY/CNA TK-RJM507863*001 1111 CAC
D401 10206836 LED 1154HD-B5/5.5-90 1111 AAC
D406 10116453 LED 1154HD-B5/6.5-90 1111 ABC
D404,405 10123009 LED 1154HD-B5/8-90 2222 AAC
N IC401 10222381 LSI ST7066U-0A-QG 1111 AUC
IC402 10159709 LSI UPD65881GK-1019ETA 1111 ATC
N TH401 10236621 THERMISTOR TTC05103KIY 1111 AAX
VR402 69304870 SEMI FIXED VOL EVND8AA03B53 1111 AAX
VR401 10123103 VARIABLE RESISTOR RK09K12C0D1B 1111 AHC
X401 10093909 CERAMIC OSCILLATOR CSBLA1M00J58-B0 1111 ACC
N
Keyboard PCBs
N 4 10271796 PCB UNIT/RUBBER TK-RJM507659*001 1111 BUC
N 5 10271797 PCB ASSY/KEY TK-RJM507866*001 1111 BKC
D801-
D922 23153132 DIODE 1SS133T-77 122 122 122 122 AA X
Q'TY RemarksRSpecification Price
Code
Parts Name
Parts
No.
ItemN

– 17 –
1 CTK-810_DI
2 CTK-810_EU
3 CTK-810_UK
4 CTK-810_US
1234
Keyboard Unit
N 6 10269451 RUBBER/CONTACT/CB RJM507656-001V01 4444 AFB
N 7 10270393 RUBBER/CONTACT/CS RJM507657-001V01 1111 AHB
8 10249864 WHITE KEY/CB TK-RJM507243*001 4444 AQC
9 10249865 WHITE KEY/CS TK-RJM507244*001 1111 ATC
N 10 10274032 BLACK KEY/10P RJM506595-001V02 2222 ALC
11 10247548 BLACK KEY5P RJM506595-002V01 1111 AEC
Case Unit
N 12 10269447 REFRECTOR RJM507738-001V01 1111 ADC
13 10116376 LED SLR343BBT3F 2222 AJC
N 14 10270495 PLATE/DISPLAY RJM507717-001V01 1111 AJC
N 15 10270392 KNOB/SLIDE RJM503803-006V01 1111 AAC
N 16 10270487 KNOB/ROTARY RJM502503-019V02 1111 AAC
N 17 10270398 RUBBER KEY/A RJM507682-001V01 1111 AAC
N 18 10270399 RUBBER KEY/B RJM507683-001V01 1111 ACC
N 19 10270400 RUBBER KEY/B RJM507683-002V01 1111 ACC
N 20 10270401 RUBBER KEY/C RJM507684-001V01 1111 AAC
N 21 10270402 RUBBER KEY/D RJM507685-001V01 1111 AEC
N 22 10270403 RUBBER KEY/E RJM507686-001V01 1111 AEC
N 23 10270404 RUBBER KEY/F RJM507687-001V01 1111 AAC
N 24 10270405 RUBBER KEY/G RJM507688-001V01 1111 AGC
N 25 10270406 RUBBER KEY/H RJM507697-001V01 1111 AGC
N 26 10270407 RUBBER KEY/J RJM507698-001V01 1111 AAC
27 69270510 SWITCH/SLIDE KNOB CSB-08D 1111 ADC
N 28 10272002 LCD TR6800N 1111 AYC
N 29 10199879 PLATE/BL RJM505456-001V01 1111 AHC
N 30 10199881 TOP PIECE RJM505457-001V01 1111 AAC
N 31 10199880 FILM RJM505454-001V01 1111 AAC
N 32 10206683 CONNECTOR RJM506034-001V01 2222 AEC
33 10037738 SPONGE M441167-1 2222 AAC
N 34 10272063 SPEAKER C12J03 2222 APC
35 69271080 TERMINAL/BATTERY(+) M440112-1 1111 ABC
36 10008078 TERMINAL/BATTERY(-) M440002A-1 1111 AAC
N 37 10271789 COVER ASSY/BATTERY TK-M340884*024 1111 AFC
38 69271060 TERMINAL/BATTERY M440676-1 2222 C
39 69271070 TERMINAL/BATTERY M440677-1 3333 C
Accessories
- 10107083 STAND/MUSIC M141071-5 1111 AWC
N - 10269397 CD ROM USB12CDROMWL1F 1111 AGC
Refurbish
N R-1 10271792 CASE ASSY/UPPER TK-RJM507637*001 1111 CI C
N R-2 10271795 CASE ASSY/MIDDLE TK-RJM507833*001 1111 CI C
N R-3 10270498 PLATE/LOWER RJM507740-001V01 1111 AQC
Specification Q'TY R Remarks
Price
Code
NItem Parts
No. Parts Name

– 18 –
SCHEMATIC DIAGRAMS
Main PCB M708-MDA1
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