Casio CTK-401 Electronic Keyboard User Manual


 
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SPECIFICATIONS
GENERAL
Keyboard: 49 standard-size keys, 4 octaves
Tones: 100
Polyphony: 12 notes maximum (6 for certain tones)
Auto accompaniment
Rhythm patterns: 100
Tempo: Variable (236 steps, = 20 to 255)
Chords: 2 fingering methods (CASIO CHORD, FINGERED)
Rhythm controller: START/STOP, SYNCHRO/FILL-IN
Accomp volume: 0 to 9 (10 steps)
Song bank
Tunes: 100
Controllers: PLAY/PAUSE, STOP, REW, FF, LEFT ON/OFF, RIGHT ON/OFF
Musical dictionary
Name display: TONE, RHYTHM, SONG BANK name/number
Tempo: Tempo value, metronome, synchro standby, beat indicator
Chord: Chord name, Chord form
Fingering: Fingering indcators, parts
Song bank status: PLAY, PAUSE, REW, FF, playing
Staff: Four octaves with sharp and flat indications
Keyboard: Four octaves
Other functions
Transpose: 12 steps (–6 semitones to +5 semitones)
Tuning: Variable (A4 = approximately 440 Hz ± 50 cents)
Volume: 0 to 9 (10 steps)
Terminals
Phones/Output terminal: Stereo standard jack
Output Impedance: 100
Output Voltage: 3.0 V (RMS) MAX
Power supply terminal: 9 V DC
Power supply Dual power supply system
Batteries: Six AA-size batteries
Battery life: Approximately 2 hours (SUM-3/R6P)/6 hours (AM3/LR6)
AC adaptor: AD-5
Auto power off: Turns power off approximately six minutes after last key operation. Enabled
under battery power only, can be disabled manually.
Speaker output: 2.0 W + 2.0 W
Power consumption: 9 V --- 7.0 W
Dimensions (HWD): 988 × 332 × 124 mm (38-15/16 × 13-1/16 × 4-7/8 inches)
Weight: Approximately 3.5 kg (7.7 lbs) (without batteries)
ELECTRICAL
Current drain with 9 V DC:
No sound output 100 mA ± 20 %
Maximum volume 625 mA ± 20 %
with 12 keys C4 to B4 pressed in Synth-Lead 1
Volume: 9 (Max.)
Phone output level (Vrms with 8 load each channel):
with key A4 pressed in Synth-Lead 1 67 mV ± 20 %
Speaker output level (Vrms with 4 load each channel):
with key A4 pressed in Synth-Lead 1 900 mV ± 20 %
Minimum operating voltage: 5.7 V