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Specifications ............................................................................................................................................ 1
Block Diagram ........................................................................................................................................... 3
Circuit Description ..................................................................................................................................... 4
Troubleshooting ........................................................................................................................................ 8
Adjustment ................................................................................................................................................ 9
Major Waveforms .................................................................................................................................... 10
Printed Circuit Boards ............................................................................................................................. 11
Schematic Diagrams ............................................................................................................................... 13
Exploded View ........................................................................................................................................ 16
Parts List ................................................................................................................................................. 17
GENERAL
Model:
Keyboard:
Tones:
Polyphony:
Auto accompaniment
Rhythm Patterns:
Tempo:
Chords:
Rhythm controller:
Song Bank
Tunes:
Controllers:
Multi function display
Name display:
Tempo:
Other functions
Transpose:
Tuning:
Volume:
Terminals
Phones/output terminal:
Power supply terminal:
Power supply:
Batteries:
Battery life:
AC adaptor:
Auto power off:
Speaker output:
Power consumption:
Dimensions (HWD):
Weight:
CONTENTS
SPECIFICATIONS
CTK-485
61 standard-size keys, 5 octaves
100
12 notes maximum (6 for certain tones)
100
Variable (236 steps, = 20 to 255)
2 fingering methods (CASIO CHORD, FINGERED)
START/STOP, SYNCHRO/FILL-IN
100
PLAY/PAUSE, STOP, LEFT (ON/OFF), RIGHT (ON/OFF)
TONE, RHYTHM, SONG BANK name/number, keyboard settings name/
value
Tempo value, metronome, synchro standby, beat indicator
12 steps (-6 semitones to +5 semitones)
Variable (A4 = approximately 440 Hz ± 50 cents)
0 to 9 (10 steps)
Stereo standard jack
Output Impedance: 70 Ω
Output Voltage: 2.4 V (RMS) MAX
9 V DC
Dual power supply system
6 AA-size batteries
Approximately 2 hours (SUM-3/R6P)/4 hours (AM3/LR6)
AD-5
Turns power off approximately 6 minutes after last key operation. Enabled
under battery power only, can be disabled manually.
2.0 W + 2.0 W
9 V . . . 7.0 W
91.0 × 32.2 × 9.0 cm (35 7/8 × 12 11/16 × 3 9/16 inches)
Approximately 4.0 kg (8.8 lbs) (without batteries)
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