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LK-125
SEP. 2010




LK-125




ELECTRONIC KEYBOARD
Ver. 2 : Jan. 2012
INDEX
LK-125


CONTENTS
SPECIFICATIONS........................................................................................... 1
BLOCK AND WIRING DIAGRAM .................................................................. 2
PCB INFORMATION ....................................................................................... 3
CIRCUIT DESCRIPTION ................................................................................ 4
PRINTED CIRCUIT BOARDS......................................................................... 5
DISASSEMBLY ............................................................................................... 7
DIAGNOSTIC PROGRAM ............................................................................ 16
EXPLODED VIEW......................................................................................... 22
PARTS LIST .................................................................................................. 23
SCHEMATIC DIAGRAMS ............................................................................. 26
LK-125


SPECIFICATIONS
Keyboard 61 standard-size keys; 5 octaves

Key Light System Can be turned on and off (up to 4 keys can be lit at the same time)

Tones 100 presets

Polyphony 12 notes maximum

3-Step Lesson System Number of simultaneously lit keys; 4
3-Steps
Playback 1 tune repeat playback
Voice Fingering Guide On/Off

Auto-accompaniment
Rhythm Patterns 50 presets
Tempo Adjustable, (216 steps, = 40 to 255), initial value; 120
Chords Two systems; CASIO CHORD, FINGERED
Other Fill-in pattern, Synchro start

Song Bank Tunes 100 tunes

Musical Information Function Tone, Auto Accompaniment, Song Bank numbers and names; tempo,
3 step lesson display, chord name, fingering, timing indicator, key lighting,
voice fingering

Other Functions
Transpose F# to C to F: half-note
Tuning Adjustable A4 = Approx. 440 Hz