CASIO CTK611 - Service Manual Immediate Download

ELECTRONIC KEYBOARD

CTK-611

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POWER

FULL RANGE

CHORD

FINGERED

MAX

START

TEMPO

REVERB

SYNTH

MIXER

MEMORY

STEP

ACCOMP

VOLUME

STOP

MIN

CASIO CHORD

NORMAL

FREE

SESSION

TOUCH

RESPONSE

LAYER

SPLIT

CURSOR

PITCH BEND

MODE

VOLUME

INTRO

SYNCHRO/ENDING

NORMAL/FILL-IN

VAR/FILL-IN

REVERB

GM

FREE

SESSION

LAYER

SPLIT

TOUCH

RESPONSE

HALL

STAGE

ROOM

SYNTH

MIXER

MEMORY

STEP

CHORD/1

23456

MEMORY TRACK/DRUM PAD

DEMO

TRANSPOSE/

TUNE/MIDI

RHYTHM

TONE

ENTER

AMP

ENVELOPE

000-048 DECAY

00 FLAT

049-137 SUSTAIN 01-19 VIBRATO

20-49 OTHERS

PITCH

ENVELOPE

200 TONES

100 RHYTHMS

INDEX

CONTENTS

Specifications ................................................................................................................................... 1

Block Diagram .................................................................................................................................. 3

Circuit Description ............................................................................................................................ 4

Adjustment ..................................................................................................................................... 11

Major Waveforms ........................................................................................................................... 12

Printed Circuit Boards .................................................................................................................... 13

Schematic Diagrams ...................................................................................................................... 14

Exploded View ............................................................................................................................... 19

Parts List ........................................................................................................................................ 20

-- 1 --

SPECIFICATIONS

GENERAL

Keyboard:

61 standard-size keys, 5 octaves (with touch response on/off)

Drum pads:

6

Tones:

200 (128 General MIDI, 32 synthesized, 8 drum, 32 user); with layer and

split

Rhythm instrument tones:

51

Polyphony:

24 notes maximum (12 for certain tones)

Digital effects:

3 reverb types (HALL, STAGE, ROOM)

Auto accompaniment

Rhythm patterns:

100

Tempo:

Variable (216 steps,

= 40 to 255)

Chords:

3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE

CHORD)

Rhythm controller:

START/STOP, INTRO, NORMAL/NORMAL FILL-IN, VARIATION/VARI-

ATION FILL-IN, SYNCHRO/ENDING

Accomp volume:

0 to 127 (128 steps)

Free session

Number of patterns:

100 (auto-accompaniment in accordance with selected chord progres-

sion)

Memory function

Songs:

2

Recording tracks:

6 (2 through 6 are melody tracks)

Recording methods:

Real-time, step

Memory capacity:

Approximately 5,200 notes (total for two songs)

Edit function:

Equipped

Demo tunes:

2

Synthesizer function

Parameters:

PCM set, amp envelope set, attack rate, release rate, pitch envelope set,

pitch, level, touch sense, pan

Mixer function

Channels:

16

Parameters:

Program change number, volume, expression, pan, coarse tuning, fine

tuning, on/off/solo

MIDI:

16 multi-timbre receive, GM Level 1 standard

Other functions

Pitch bend range:

12 semitones upwards and downwards

Transpose:

25 steps (12 semitones to +12 semitones)

Tuning:

Variable (A4 = approximately 440 Hz

± 50 cents)

Terminals

MIDI terminals:

IN, OUT

Assignable terminal:

Standard jack (sustain, sostenuto, soft, rhythm start/stop)

Headphone/Output terminal: Stereo standard jack

Output Impedance: 120

Output Voltage: 4.5 V (RMS) MAX

Power supply terminal:

9 V DC

Power supply:

Dual power supply system

Batteries:

6 D-size batteries

Battery life:

Approximately 5 hours continuous operation on manganese batteries

AC adaptor:

AD-5

Auto power off:

Turns power off approximately six minutes after last key operation. En-

abled under battery power only, can be disabled manually.

Speaker output:

2.5 W + 2.5 W

Power consumption:

9 V --- 7.7 W

Dimensions (HWD):

93.1

× 37.3 × 12.0 cm (36 11/16 × 14 11/16 × 4 3/4 inches)

Weight:

Approximately 5.0 kg (11.0 lbs) (without batteries)

-- 2 --

ELECTRICAL

Current drain with 9 V DC:

No sound output

340 mA

± 20 %

Maximum volume

1012 mA

± 20 %

with 12 keys from C3 to B3 pressed in Square wave tone

Volume: maximum, Touch response: maximum

Reverb: Hall

Phone output level (Vrms with 8

load each channel):

L-ch

90 mV

± 20 %

with key C6 pressed in Bassoon tone

R-ch

100 mV

± 20 %

Volume: maximum, Touch response: maximum

Reverb: Hall

Speaker output level (Vrms with 4

load each channel):

L-ch

1150 mV

± 20 %

with key F5 pressed in Bassoon tone

R-ch

1000 mV

± 20 %

Volume: maximum, Touch response: maximum

Reverb: Hall

Output level (Vrms with 47k

load each channel):

L-ch

1200 mV

± 20 %

with key F5 pressed in Bassoon tone

R-ch

1000 mV

± 20 %

Volume: maximum, Touch response: maximum

Reverb: Hall

Minimum operating voltage:

6.3 V

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.

-- 3 --

KC0 ~ KC7

FI0 ~ FI9

SI0 ~ SI9

KI0 ~ KI2

PB0 ~ PB3

P10, P13

P14, P17

Working Storage

RAM (256K-bit)

LSI4

TC55257DFL-70L(EL)

MIDI

EA0 ~

EA14

EIO0 ~

EIO7

Sound Source ROM

(16M-bit)

LSI3

UPD23C16000WGX-

C51

LRCK

SO

BCK

D/A Converter

LSI6

UPD6379GR

Filter

Q107 ~ Q110

Main

Volume

Power Amplifier

IC101

TA8248K

Keyboard

MA0 ~ MA19

Power Supply Circuit

Q101 ~ Q105,

D106/107, D190

VCC

AVDD

VDD

DVDD

LVDD

VC

APO

Effect RAM

(256K-bit)

LSI5

TC55257DFL-

70L(EL)

MD0

~

MD7

Speakers

Output

MA0

~

MA14

MA0, MA1

LRCK, SO

BCK, SINK

LCD

LCD Driver

LSI401

SED1278F2A

SEG1 ~ SEG40

IN

OUT

Reset IC

IC1

RN5VD40AA

RESET

COM1 ~ COM16

DSP

LSI2

HG51B277FB-1

MD0 ~ MD15

CPU

LSI1

UPD913GF-3BA

Buttons

Assingnable Jack

PB4

VDD

Power Switch

NMI

FI10

P23

PA0 ~ PA5

PB0 ~ PB3

BLOCK DIAGRAM