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Casio CTK-731 Service Manual

Casio CTK-731
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— 3 —
Other functions
Pitch bend range: Adjustable (12 semitones upwards and downwards)
Modulation: Equipped
Transpose: 25 steps (–12 semitones to +12 semitones)
Tuning: Adjustable (A4 = approximately 440Hz ± 50 cents)
Terminals
MIDI terminal: IN, OUT
Sustain/Assignable jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Headphones/Output: Stereo standard jack
Output Impedance: 250
Output Voltage: 6 V (RMS) MAX
12 V DC
Floppy disk drive
Type: 3.5" FDD
Formats: 2DD (720KB MS-DOS format)
2HD (1.44MB MS-DOS format)
Functions: Save and load of user tones, user rhythms, sequencer, and registration
data; playback of SMF; disk formatting; file delete; accompaniment pat-
tern style conversion
Power supply: Dual power supply system
Batteries Six D-size batteries
Battery life Approximately 3 hours continuous operation on alkaline batteries
AC adapter: AD-12
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: 5 W + 5 W
Power consumption: 12 V 18 W
Dimensions: 96.0 × 37.5 × 14.8 cm (37 13/16 × 14 3/4 × 5 7/8 inch)
Weight (without batteries): Approximately 7.0 kg (15.5 lbs)
Standard accessories: Music Stand; Pattern Conversion Disk; Data Disk; Disk User’s Guide;
Keyboard User’s Guide, Rhythm Tone Plate
ELECTRICAL
Current drain with 12 V DC:
No sound output 400 mA ± 20 %
Maximum volume 2330 mA ± 20 %
with 10 keys from C1 to E2 pressed in whistle tone
Volume: MAX., Velocity: MAX.
DSP0: Reverb1, FDD: Replay
Phone output level (Vrms with 8 load each channel):
with tone Synth-Bass 4 tone L-ch (Key C4) 77 mV ± 20 %
Volume: MAX., Velocity: MAX. R-ch (Key F3) 75 mV ± 20 %
DSP0: Reverb1
Speaker output level (Vrms with 8 load each channel):
with tone Synth-Bass 4 tone L-ch (Key C2) 5.7 mV ± 20 %
Volume: MAX., Velocity: MAX. R-ch (Key E1) 5.6 mV ± 20 %
DSP0: Reverb1
Output level (Vrms with 47 k load each channel):
with tone Synth-Bass 4 tone L-ch (Key D3) 2400 mV ± 20 %
Volume: MAX., Velocity: MAX. R-ch (Key F3) 2150 mV ± 20 %
DSP0: Reverb1

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Casio CTK-731 Specifications

General IconGeneral
BrandCasio
ModelCTK-731
CategoryElectronic Keyboard
LanguageEnglish

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