Casio CTK-480- User Manual
Casio CTK-480– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – GENERAL
- Page 3 – Power Supply Circuit; BLOCK DIAGRAM
- Page 4 – CIRCUIT DESCRIPTION; KEY MATRIX
- Page 5 – FILTER BLOCK
- Page 6 – LED DRIVING
- Page 7 – INITIAL RESET CIRCUIT; TROUBLESHOOTING
- Page 8 – MAJOR WAVEFORMS
- Page 9 – SCHEMATIC DIAGRAMS
- Page 11 – PRINTED CIRCUIT BOARDS
- Page 13 – EXPLODED VIEW
- Page 14 – This parts list does not include the cosmetic parts, which; PARTS LIST
ELECTRIONIC KEYBOARD
CTK-480
CTK-480
0
5
1
6
2
7
3
8
4
9
MULTI FUNCTION DISPLAY
POWER/MODE
FINGERED
CASIO CHORD
NORMAL
ON
OFF
VOLUME SYNCHRO/
FILL-IN
START/
STOP
TEMPO
⁄
¢
⁄
TRANSPOSE/TUNE
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00
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100 TONES
¢
TONE RHYTHM
SONG
TONE
RHYTHM
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MELODY
ON/OFF
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Summary
— 2 — CONTENTS Specifications .......................................................................................................................... 2 Block Diagram ......................................................................................................................... 3 Circuit...
— 3 — CPU MSM 6755B-06 LSI101 Keyboard Buttons LED Reset IC IC102 Oscillator X101, Q111 Q105 Power Supply Circuit Q101 ~ Q104, D108, D109 Power Amp. LA4598 IC101 Filter (L) Q109 Filter (R) Q110 Output DC+9V IN VC VCC AVDD DVDD LVDD APO CC1 ~ CC3 La ~ Lg,Lp KO8 ~KO11 KI0 ~ KI7 KO0 ~ KO7 BLOCK DIAGRAM
— 4 — CIRCUIT DESCRIPTION KEY MATRIX KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 C1 G#1 E2 C3 G#3 E4 C5 G#5 KO1 C#1 A1 F2 C#3 A3 F4 C#5 A5 KO2 D1 A#1 F#2 D3 A#3 F#4 D5 A#5 KO3 D#1 B1 G2 D#3 B3 G4 D#5 B5 KO4 E1 C2 G#2 E3 C4 G#4 E5 C6 KO5 F1 C#2 A2 F3 C#4 A4 F5 KO6 F#1 D2 A#2 F#3 D4 A#4 F#5 KO7 G1 D#2 B2 G3 D...
