Casio CTK-401 User Manual

ELECTRONIC KEYBOARD
CTK-401
CTK-401
POWER/MODE
FINGERED
MAIN
VOLUME
SYNCHRO/
FILL-IN
START/
STOP TEMPO
CHORD BOOK
M
01234
5
6789
m 7 M7 dim
aug sus4 -5 add9 CLEAR
ACCOMP VOLUME
CASIO
CHORD
ON
OFF
NORMAL
100 RHYTHMS
100 SONG BANK (00-49)
TONE SONG BANK
REW STOP FF
100 SONG BANK KEYBOARD
MUSICAL INFORMATION SYSTEM
SONG BANK CONTROLLER
LEFT
ON/OFF
RIGHT
ON/OFF
PLAY/
PAUSE
TRANSPOSE/
TUNE
RHYTHM
S
O
N
G
B
A
N
K
C
O
N
T
R
O
L
L
E
R
100 TONES
100 SONG BANK (50-99)
TONE
RHYTHM
SONG BANK
MUSICAL INFORMATION SYSTEM
STATUS
TEMPO
VOLUME

Casio CTK-401 Specifications

General

Number of Keys	61
Touch Response	No
Polyphony	12 notes
Tones	100
Rhythms	100
MIDI	No
Speakers	Yes
Song Bank	Yes
Display	LCD
Effects	Reverb
Power Supply	AC Adaptor or Batteries

Summary

Specifications

Electrical Specifications

Electrical specifications including current drain, voltage, power consumption, and dimensions.

Block Diagram

Circuit Description

CPU (LSI1: MSM6755B-17)

LCD Driver (LSI3: SED1278F0A)

Filter Block

Power Amplifier (IC101: TA8248K)

Adjustment

Adjustment Items and Locations

Details adjustment items like Vop voltage setting and shows PCB locations for adjustment and testing.

Adjustment Procedure

Outlines the procedure for Vop voltage setting, including equipment connection and fine adjustment steps.

Schematic Diagrams

Main PCB JCM442-MA1M Schematics

Detailed schematic diagram of the Main PCB, showing connections between components and ICs.

LCD Driver Connections

Schematic representation of the LCD driver connections to the main board.

CPU Connections

Sub PCB JCM442-MA2M

Power and Audio Circuitry

Schematic showing power supply, battery box, and audio amplifier connections on the sub PCB.

Button and Control Interfaces

Speaker and Connector Layout

Keyboard PCBs

KDM4910K-KY1M Keyboard PCB

KDM4910K-KY2M Keyboard PCB

Parts List

Notes and Part Categories

Detailed Component Listing

Comprehensive list of components for Main PCB, Sub PCB, and Mechanical parts.