Casio ctk 330 service manual
This is the 16 pages manual for casio ctk 330 service manual.
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Extracted text from casio ctk 330 service manual (Ocr-read)
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Ñ 2 Ñ CONTENTS Specifications .......................................................................................................................... 2 Block Diagram ......................................................................................................................... 3 Circuit Description ................................................................................................................... 4 Major Waveforms .................................................................................................................... 7 Schematic Diagrams ............................................................................................................... 8 Printed Circuit Board ............................................................................................................. 10 Exploded View ...................................................................................................................... 11 Parts List ............................................................................................................................... 13 SPECIFICATIONS GENERAL Number of keys: 49 Polyphonic: 12-note Preset tones: 100 Auto-rhythms: 50, Tempo control: 40 to 255 Accompaniment: Casio Chord, Fingered Song bank: 20-tune Tuning control: 440 Hz ± 50 cents Built-in speakers: 4 inch dia. 2 W input rating: 2 pcs Terminals: Stereo standard Jack (Output impedance: 100 ohm, Output voltage: 3 V (rms) MAX Power source: 2-way AC or DC source AC: AC adapter DC: 6 AA size dry batteries Power consumption: 7.2 W Dimensions(HWD): 988 ´ 311 ´ 125 mm (38-15/16 ´ 12-1/4 ´ 4-15/16 inches) Weight: 3.5 kg (7.7 lbs) excluding batteries ELECTRICAL Current drain with 9 V DC: No sound output 120 mA ± 30% Maximum volume 650 mA ± 30% with white keys C1 to G2 pressed in Synth-Lead 1 Volume: 9 Phone output Level (Vrms with 8 ohm load each channel): with key E3 pressed in Synth-Lead 1 80 mV ± 30% Sound Pressure (at 10 cm away from speaker): with key E3 pressed in Synth-Lead 1 100 dB ± 10 dB Minimum operating voltage: 6.0 V
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Ñ 3 Ñ CPU MSM 6755B-08 LSI101Keyboard Buttons LED Reset IC IC102Oscillator X101, Q107 Q111 Power Supply Circuit Q101 ~ Q104, D106 Power Amp. LA4598 IC101Filter (L) Q105 Filter (R) Q106 Output DC+9V IN VC AVDD DVDD LVDD APOCC1 ~ CC3La ~ Lg, Lp KO8 ~ KO11KI0 ~ KI7 KO0 ~ KO7 BLOCK DIAGRAM