Casio M-100 Service Manual

M-100

INDEX

(without price)

M-100

ELECTRIONIC KEYBOARD

CONTENTS

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

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

PCB View and Major Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

IC Lead Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SPECIFICATIONS

General

Number of Keys: 32
Polyphonic: 2-note
Preset Tones: 25
Tone Edit Variations: 4
Patterns: Auto-Rhythms: 8, including; 8-Beat, 16-Beat, Swing, Slow Rock, Shuffle,

March, Samba, Waltz

Accompaniments: 8, including; Rock, Pops, Jazz, Funk, House, Country,

Ratin, Classical

Funny Sounds: 8, including; Fanfare, Hpper, Computer Sound, Horror,

Child's Play, Orient, Jungle, Comedy

Demonstration Tune: Twinkle Twinkle Little Star

Oh! Susanna
Lullaby (Brahms)
Little Brown Jug

Jingle Bells
Built-In Speaker: 6.5 cm dia. 1.0 W Input Rating: 1 pce.
Terminals: Output Jack [Output Impedance:120 Ω, Output Voltage: 1.6 V (rms) MAX]

AC Adapter Jack (DV 7.5 V)
Power Source: DC: 4 AA size dry batteries

Battery life: Approx. 5 hours (SUM-3/R6P)

AC: AC Adapter AD-1
Power Consumption: 0.6 W
Dimensions (HWD): 41 x 382 x 125 mm

(1-5/8 x 15 x 5 inches)
Weight: 0.5 kg (1.1 lbs) including batteries

Electrical

Current Drain with 7.5 V DC:
No Sound Output 28 mA ± 20%
Maximum Volume 90 mA ± 20%

with keys C4 and E4 pressed in Flute tone

Volume: Maximum, Accmpaniment: Latin,

Tempo: Maximum

Sound Pressure Level at 10 cm away from the speaker 100 dB ± 10 dB

with key C6 pressed in Clarinet, Volume: Maximum

Minimum Operating Voltage: 5.0 V

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Output Jack

BLOCK DIAGRAM

KO0~KO6

CPU

Speaker

Nomenclature of Keys

Amplifier

AN8053N

IC1

VDD

MSM6387-16

KI0~KI7

LSI1

Keyboard

Switches

Oscillator

X1

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

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