Casio ctk 631 service manual
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Extracted text from casio ctk 631 service manual (Ocr-read)
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CONTENTS Specifications ................................................................................................................................... 1 Block Diagram .................................................................................................................................. 3 Circuit Description ............................................................................................................................ 4 Adjustment ..................................................................................................................................... 11 Major Waveforms ........................................................................................................................... 13 Printed Circuit Boards .................................................................................................................... 14 Schematic Diagrams ...................................................................................................................... 17 Exploded View ............................................................................................................................... 24 Parts List ........................................................................................................................................ 25
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Ñ 1 Ñ SPECIFICATIONS GENERAL Keyboard: 61 standard-size keys, 5 octaves (with touch response on/off) Drum pads: 6 Tones: 200 (128 General MIDI, 32 synthesized, 8 drum, 32 user); with layer and split Rhythm instrument tones: 61 Polyphony: 24 notes maximum (12 for certain tones) Digital effects: 3 reverb types (HALL, STAGE, ROOM) Auto accompaniment Rhythm patterns: 100 Tempo: Variable (216 steps, = 40 to 255) Chords: 4 fingering methods (NORMAL, CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm controller: START/STOP, INTRO, NORMAL/NORMAL FILL-IN, VARIATION/VARI- ATION FILL-IN, SYNCHRO/ENDING Accomp volume: 0 to 127 (128 steps) Free session Number of patterns: 100 (auto-accompaniment in accordance with selected chord progres- sion) Memory function Songs: 2 Recording tracks: 6 (2 through 6 are melody tracks) Recording methods: Real-time, step Memory capacity: Approximately 5,200 notes (total for two songs) Edit function: Equipped Demo tunes: 2 Synthesizer function Parameters: PCM set, amp envelope set, attack rate, release rate, pitch envelope set, pitch, level, touch sense, pan Mixer function Channels: 16 Parameters: Program change number, volume, expression, pan, coarse tuning, fine tuning, on/off/solo MIDI: 16 multi-timbre receive, GM Level 1 standard Other functions Pitch bend range: 12 semitones upwards and downwards Transpose: 25 steps (Ð12 semitones to +12 semitones) Tuning: Variable (A4 = approximately 440 Hz ± 50 cents) Terminals MIDI terminals: IN, OUT Assignable terminal: Standard jack (sustain, sostenuto, soft, rhythm start/stop) Headphone/Output terminal: Stereo standard jack Output Impedance: 120 W Output Voltage: 4.5 V (RMS) MAX Power supply terminal: 9 V DC Power supply: Dual power supply system Batteries: 6 D-size batteries Battery life: Approximately 5 hours continuous operation on manganese batteries AC adaptor: AD-5 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: 2.5 W + 2.5 W Power consumption: 9 V --- 7.7 W Dimensions (HWD): 96.0 ´ 37.6 ´ 15.2 cm (37 13/16 ´ 14 13/16 ´ 5 15/16 inches) Weight: Approximately 5.5 kg (12.1 lbs) (without batteries)