Casio ctk 520l service manual
This is the 21 pages manual for casio ctk 520l service manual.
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Extracted text from casio ctk 520l service manual (Ocr-read)
Page 1
CONTENTS Page Specifications ................................................................................................................................... 1 Block Diagram .................................................................................................................................. 2 Circuit Description ............................................................................................................................ 3 Major Waveforms ............................................................................................................................. 6 Printed Circuit Boards ...................................................................................................................... 7 Schematic Diagrams ........................................................................................................................ 8 Exploded View ................................................................................................................................ 14 Parts List ........................................................................................................................................ 15
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Ñ 1 Ñ SPECIFICATIONS GENERAL Number of keys: 61 Polyphonic: 12-note Preset tones: 100 Transpose: F# ~ C ~ F: half-note Auto-rhythms: 50, Tempo: Adjustable, 216 steps (40 ~ 255), initial value: 120 Accompaniment: CASIO Chord, Fingered Song bank: 40-tune Digital volume control: 10 steps (0 ~ 9), initial value: 7 Tuning control: 440 Hz ± 50 cents Built-in speakers: 10 cm dia. 2 W input rating: 2 pcs Terminals: Headphone Jack (Output impedance: 50 ohm, Output voltage: 4.6 V (rms) MAX AC Adapter Jack (9 V) , Stereo standard Jack [Output impedance: 50 W, Output voltage: 2 V(rms) MAX] Auto power off: Approximately 6 minutes after the last operation Power source: 2-way AC or DC source AC: AC adapter DC: 6 AA size Power consumption: 7.7 W Dimensions (HWD): 89 ´ 924 ´ 325 mm (3-1/2 ´ 36-7/16 ´ 12-13/16 inches) Weight: 4.35 kg (9.6 lbs) excluding batteries ELECTRICAL Current drain with 9 V DC: No sound output 130 mA ± 20% Maximum volume 810 mA ± 20% with white keys C1 to G2 pressed in Synth-Lead 1 Volume: Maximum Phone output level (Vrms with 8 ohm load each channel): with key D3 pressed in Synth-Lead 1 95 mV ± 20% Speaker output level (Vrms with 4 ohm load each channel): with key D3 pressed in Synth-Lead 1 1050 mV ± 20% Minimum operating voltage: 6.3 V