Casio ctk 530 service manual

Page 1

Ñ 2 Ñ CONTENTS Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Major waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PCB View and Check Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SPECIFICATIONS GENERAL Number of keys: 61 Polyphonic: 24-note Preset tones: 64 Keyboard controls: Touch response: On/Off, Key transpose: Range from F# to F by a semitone increment Auto-rhythms: 64, Tempo control: 40 to 255 Auto-accompaniment: Mode: CASIO Chord/Fingered/Full-Range Chord 1/Full-Range Chord 2 Controller: Fill-In, Synchro/Ending Digital volume controls: Main volume: 10 steps Accompaniment volume: 100 steps Demo tunes: 3, A Night has 9000 Bars (arranged and programmed byThomas Hirsch) Wanting This (Edward Alstrom) Supersonic Remorse (Edward Alstrom) Tuning control: 440Hz ± 50 cents Built-in speakers: 12 cm dia. 2 W input rating: 2 pcs. MIDI: 16 multi-channel reception Terminals: Phone Jack [Output impedance: 50 W, Output voltage: 4.0 V(rms) MAX], MIDI Jacks (IN, OUT), AC Adapter Jack (9 V) Auto power off: Approximately 6 minutes after the last operation Power source: 2-way AC or DC source AC: AC adapter AD-5 DC: 6 D size dry batteries Battery life: approx. 5 hours by manganese batteries R20P/SUM-1 Power consumption: 7.7 W Dimensions (HWD): 99 x 931 x 326 mm (3-7/8 x 36-5/8 x 12-13/16 inches) Weight: 4.4 kg (9.7 lbs) excluding batteries ELECTRICAL Current Drain with 9 V DC: No Sound Output 180 mA ± 20% Maximum Volume 825 mA ± 20% with keys C3 to E4 pressed in Synth-Lead 1 tone Volume: maximum, Touch response: maximum

Page 2

Ñ 3 Ñ Headphone output level (Vrms with 8 W load each channel): with key C3 pressed in Pan Flute tone 210 mV ± 20% Output level (Vrms with 47 kW load each channel): with key C2 pressed in Pan Flute tone 2000 mV ± 20% Speaker output level (Vrms with 4 W load each channel): with key A1 pressed in Pan Flute tone 2150 mV ± 20% Minimum operating voltage: 6.3 V BLOCK DIAGRAM KC0 ~ KC7FI0 ~ FI7 SI0 ~ SI7 Sound Source ROM (8M-bit) LSI102 MX23C8100MC- 12CA19 LRCK, SO, BCK D/A Converter IC103 UPD6379GR Filter Q108, Q109 Power Amplifier IC101 LA4598 LED driver IC106 BA612 Keyboard MA0 ~ MA19 Power Supply Circuit Q101 ~ Q105, Q110, Q119 D104, D105, D109 VCCAVDD VDD LVDDDVDD VC APOMD0 ~ MD7 Speakers Output MA8 ~ MA11 LEDs / 7Seg. LED LED driver Q111 ~ Q118 La ~ Lg, Lp MIDI IN OUT ButtonsVDD Power Switch Reset IC IC104 RE5VA35AARESET FI10 CPU LSI101 UPD912GF-3BA KI0 ~ KI2 MD0 ~ MD15 LED Latch IC105 HD74HC75P LED Latch IC107 HD74HC373P NMI