Casio CTK-650- Manuals

— 7 — BUTTON MATRIX Nomenclature of Keys F#3 G#3 A#3 C#4 D#4 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D#3 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6 A6 G6 F6 E6 D6 C7 C#3 A#2 G#2 F#2 D#2 C#2 A#6 G#6 F#6 D#6 C#6 K I 1 K I 2 K I 3 K I 4 K I 5 K I 6 K I 7 K O 0 3 0...

— 8 — KEY MATRIX Note:Each key has two contacts, the first contact 1 and second contact . 2 KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 1 C#2 1 D2 1 D#2 1 E2 1 F2 1 F#2 1 G2 1 SI0 C2 2 C#2 2 D2 2 D#2 2 E2 2 F2 2 F#2 2 G2 2 FI1 G#2 1 A2 1 A#2 1 B2 1 C3 1 C#3 1 D3 1 D#3 1 SI1 G#2 2 A2 2 A#2 2 B2 2 C3 2 C#3...

— 9 — WIRING DIAGRAM FI1 FI2 FI0 SI0 SI1 SI2 SI3 FI3 KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 KC0 KC1 KC2 KC3 KC4 KC5 FI4 SI4 KC6 KC7 SI5 SI6 SI7 FI5 FI6 FI7 M616T-KY1M JA CONNECTOR 1 17 M616T-KY2M JB-CONNECTOR 1 17 JA-CONNECTOR JB-CONNECTOR LG POWER PWLD KO5 KO4 KO3 KO2 KO1 KO0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 L...

— 10 — IC LEAD IDENTIFICATION AND INTERNAL CIRCUIT UPD6376CX (D/A converter) TIMING GENERATOR SHIFT REGISTER LATCH MAIN DAC SUB DAC SUB DAC MAIN DAC LRCK LRSEL/RSI SI/LSI CLK 4/8 fs SEL D.GND N.C. D.VDD A.GND A.VDD R.OUT R.REF L.REF L.OUT 11 10 9 6 8 7 12 5 4 3 13 14 15 16 1 2 TC74HC174AP (HEX D-TYP...

— 12 — 1 10 11 12 13 2 5 3 6 4 7 17 8 9 16 15 19 18 14 PCB VIEW & MAJOR WAVEFORMS

— 13 — 18 19 16 17 9 8 14 15 4 7 3 6 2 5 10 11 12 13 1 SCHEMATIC DIAGRAM M5711-MA1M

PARTS LIST CTK-650 Notes: 1. Prices and specifications are subject to change with- out prior notice. 2. As for spare parts order and supply, refer to the "GUIDEBOOK for Spare parts Supply", publishedseparately. 3. The numbers in item column correspond to the same numbers in drawing.

— 7 — BUTTON MATRIX Nomenclature of Keys F#3 G#3 A#3 C#4 D#4 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D#3 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6 A6 G6 F6 E6 D6 C7 C#3 A#2 G#2 F#2 D#2 C#2 A#6 G#6 F#6 D#6 C#6 K I 1 K I 2 K I 3 K I 4 K I 5 K I 6 K I 7 K O 0 3 0...

— 8 — KEY MATRIX Note:Each key has two contacts, the first contact 1 and second contact . 2 KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 1 C#2 1 D2 1 D#2 1 E2 1 F2 1 F#2 1 G2 1 SI0 C2 2 C#2 2 D2 2 D#2 2 E2 2 F2 2 F#2 2 G2 2 FI1 G#2 1 A2 1 A#2 1 B2 1 C3 1 C#3 1 D3 1 D#3 1 SI1 G#2 2 A2 2 A#2 2 B2 2 C3 2 C#3...

— 9 — WIRING DIAGRAM FI1 FI2 FI0 SI0 SI1 SI2 SI3 FI3 KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 KC0 KC1 KC2 KC3 KC4 KC5 FI4 SI4 KC6 KC7 SI5 SI6 SI7 FI5 FI6 FI7 M616T-KY1M JA CONNECTOR 1 17 M616T-KY2M JB-CONNECTOR 1 17 JA-CONNECTOR JB-CONNECTOR LG POWER PWLD KO5 KO4 KO3 KO2 KO1 KO0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 L...

— 10 — IC LEAD IDENTIFICATION AND INTERNAL CIRCUIT UPD6376CX (D/A converter) TIMING GENERATOR SHIFT REGISTER LATCH MAIN DAC SUB DAC SUB DAC MAIN DAC LRCK LRSEL/RSI SI/LSI CLK 4/8 fs SEL D.GND N.C. D.VDD A.GND A.VDD R.OUT R.REF L.REF L.OUT 11 10 9 6 8 7 12 5 4 3 13 14 15 16 1 2 TC74HC174AP (HEX D-TYP...

— 12 — 1 10 11 12 13 2 5 3 6 4 7 17 8 9 16 15 19 18 14 PCB VIEW & MAJOR WAVEFORMS

— 13 — 18 19 16 17 9 8 14 15 4 7 3 6 2 5 10 11 12 13 1 SCHEMATIC DIAGRAM M5711-MA1M

PARTS LIST CTK-650 Notes: 1. Prices and specifications are subject to change with- out prior notice. 2. As for spare parts order and supply, refer to the "GUIDEBOOK for Spare parts Supply", publishedseparately. 3. The numbers in item column correspond to the same numbers in drawing.