Casio CTK-2080 User Manual
CTK-2080
INDEX
JUL. 2011
CTK-2080
ELECTRONIC KEYBOARD
Ver. 2 : Feb. 2012
CTK-2080
CONTENTS
SPECIFICATIONS ........................................................................................... 1
BLOCK AND WIRING DIAGRAM .................................................................. 3
PCB INFORMATION ....................................................................................... 4
CIRCUIT DESCRIPTION ................................................................................ 5
PRINTED CIRCUIT BOARDS ......................................................................... 6
DISASSEMBLY ............................................................................................... 9
DIAGNOSTIC PROGRAM ............................................................................ 19
EXPLODED VIEW ......................................................................................... 26
PARTS LIST .................................................................................................. 27
SCHEMATIC DIAGRAMS ............................................................................. 30
SPECIFICATIONS
Keyboard 61 standard size keys
Maximum Polyphony 48 notes (24 for certain tones)
Tones
Built-in Tones 400
Sampling Tones 1 (Full Sampling) or 3 (Short Sampling)
Sampling Time: 1 second (Full Sampling) or
approximately 0.3 seconds each (Short Sampling)
Effects: 10 types (for Full Sampling samples)
Reverb 1 to 10, Off
Voice Pad 5 pads × 4 sets
(3 sets for sampled sounds, 1 set for percussion only)
Metronome
Beats per Measure 0, 2 to 6
Tempo Range 30 to 255
CTK-2080
Song Bank
Tunes 110
Step Up Lesson
Lessons 4 (Listen, Watch, Remember, Auto)
Lesson Part L, R, LR
Functions Repeat, Voice Fingering Guide, Note Guide, Performance Evaluation
Music Challenge 20 notes
Auto Accompaniment
Rhythm Patterns 150
One Touch Presets 150
Other Functions
Transpose ±1 octaves (-12 to +12 semitones)
Tuning A4 = 415.5 to 465.9 Hz (Initial Default: 440.0 Hz)
MIDI 16 multi-timbre received, GM Level 1 standard
Musical Information Function Tone, Rhythm, Song Bank numbers and names, staff notation,
ngering, pedal operation, tempo, measure and beat number,
chord name, etc.
Inputs/Outputs
USB port TYPE B
Sustain jack Standard jack (sustain, sostenuto, soft, rhythm)
Phones/Output jack Stereo standard jack
Output Impedance: 200 Ω, Output Voltage: 4.5 V (RMS) MAX
Audio In jack Stereo mini jack
Input Impedance: 9 kΩ, Input Sensitivity: 200 mV
Power Jack 9.5 V DC
– 1 –
Power Supply 2-way
Batteries 6 AA-size zinc-carbon batteries or alkaline batteries
Battery Life Approximately 3 hours continuous operation on alkaline batteries
AC Adaptor AD-E95100L
Auto Power Off Approximately 6 minutes (during battery operation) or 30 minutes
(during AC adaptor operation) without any operation
Speakers 10 cm × 2
Output 2 W + 2 W
Power Consumption 9.5 V 7.7 W
Dimensions 94.6 × 30.7 × 9.2 cm (37 1/4 × 12 1/16 × 3 5/8 inch)
Weight Approximately 3.4 kg (7.5 lbs) (without batteries)
CTK-2080
– 2 –
BLOCK AND WIRING DIAGRAM
KEYBOARD PCB (M800-KYA1) KEYBOARD PCB (M800-KYA2)
CN801 (13 pin) CN803 (16 pin)CN802 (13 pin)
CTK-2080
MAIN PCB (M822-MDA1)
USB
PEDAL (J1)
CN8 (4 pin)
Filter
VD3
Power Supply Circuit
IC6, C24, C25, C27,
C33, C35, C183
IC5
VD5
SUB PCB
(M822-PSA1)
ADIN
LOUT, ROUT
VA5
CN1 (11 pin)
AUDIO IN,
ADIN, APO,
STBY_CTL
MPU
LSI1
FI0~FI3, SI0~SI3, KC0~KC7
MA1~MA22
MD0~MD15
DB4~DB7,
E, R/W, RS, NMI
CN2 (10 pin) CN6 (12 pin)
CN301 (10 pin) CN302 (12 pin)CN101 (11 pin)
LCD
Controller/Driver
IC301
CN4 (16 pin)
Flash Memory
(16 Mbit)
LSI2
KC0~KC7,
KI1, KI2,
FI9, FI10
POWER SWITCH
(SW301, SW302)
VD5
Power Supply Circuit
C203~C205, D104, D105
D103
VA5
VA3
Power
Q101, Q102, Q106,
Supply Circuit
Q108, Q109, C185,
IC3, Q4, D1
D101
VCP
DC 9.5 V IN (J102)
APO
CN106 (+)
CN107 (-)
Filter
IC104
LOUT
ROUT
AUDIO IN (J104)
BATTERY
Filter
IC103
BUTTONS
MAIN VOL.
(SW303)
LCD
Power
Amplifier
IC101
PHONES (J103)
SPEAKER (L)
CN105 (-)
CN104 (+)
CN108 (+)
CN109 (-)
SPEAKER (R)
– 3 –
PCB INFORMATION
M822-MDA1M822-PSA1
CTK-2080
M800-KYA1
Classifi cation Parts Name PCB Name Components
MPU, Flash Memory (16 Mbit),
Main PCB PCB UNIT/MAIN M822-MDA1
Sub PCB PCB UNIT/POWER & AMP M822-PSA1
Keyboard PCB PCB UNIT/KYA
M800-KYA1
M800-KYA2
Power Supply Circuit, Filter,
SUSTAIN Jack, USB Port
Power Supply Circuit, Power Ampli er,
Filters, LCD Controller/Driver, LCD,
Buttons, Power Switch, Main Volume,
DC 9.5 V Terminal, AUDIO IN Jack,
PHONES/OUTPUT Jack
Keyboard
M800-KYA2
– 4 –
CIRCUIT DESCRIPTION
KEY MATRIX
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
KI0 C2 C2# D2 D2# E2 F2 F2# G2
KI1 G2# A2 A2# B2 C3 C3# D3 D3#
KI2 E3 F3 F3# G3 G3# A3 A3# B3
KI3 C4 C4# D4 D4# E4 F4 F4# G4
KI4 G4# A4 A4# B4 C5 C5# D5 D5#
KI5 E5 F5 F5# G5 G5# A5 A5# B5
KI6 C6 C6# D6 D6# E6 F6 F6# G6
KI7 G6# A6 A6# B6 C7
NOMENCLATURE OF KEYS
CTK-2080
C2
BUTTON MATRIX
KI1
RHYTHM,
KI2
FI9 0 1 2 3 4 5 6 -
FI10 7 8 9 +
ONE TOUCH
PRESET
C3
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
SONG
BANK
$
TONE
TEMPO
w
C4
TEMPO
q
VOICE
PAD2,
WATCH
SET SELECT,
MUSIC
CHALLENGE
VOICE
PAD3,
REMEMBER
C5
VOICE
PAD4,
NEXT
VOICE
PAD1,
LISTEN
VOICE
PAD5,
AUTO
START/
STOP,
PLAY/
STOP
NORMAL/
FILL-IN,
REW
SYNCHRO/
ENDING,
PAUSE
C6
METRONOME,
BEAT
$
FUNCTION
ACCOMP,
CHORDS,
$
PART SELECT
C7
REPEAT,
INTRO
VAR./
FILL-IN,
FF
SAMPLING
– 5 –
Main PCB: M822-MDA1
CTK-2080
PRINTED CIRCUIT BOARDS
– 6 –
Sub PCB: M822-PSA1
CTK-2080
– 7 –
Keyboard PCB: M800-KYA1
Keyboard PCB: M800-KYA2
CTK-2080
– 8 –
CTK-2080
DISASSEMBLY
CAUTION
z
The photos show a prototype. The appearance of the instrument, such as color, may
differ from the actual model.
z
To avoid damages to the instrument and the oor, lay the instrument on a mattress
or blanket before starting disassembling.
z
There are several kinds of screws. Be sure to use the correct type of screws when
reassembling. It is advisable to sort the screws as shown below after removing
them.
z
If a screw cap is attached to a screw, be sure to reattach the screw cap when
reassembling.
BEFORE STARTING REPAIR OR SERVICING
z
Remove the AC adaptor, AC cord or batteries.
z
Remove accessories such as the music stand.
– 9 –
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