Casio CTK-511- Manuals

Page 2 - CONTENTS

CONTENTS Specifications ................................................................................................................................... 1 Block Diagram ...................................................................................................................................

Page 3 - SPECIFICATIONS; GENERAL

— 1 — SPECIFICATIONS GENERAL Keyboard: 61 standard-size keys, 5 octaves Tones: 100 Polyphony: 12 notes maximum (6 for certain tones) Auto accompaniment Rhythm patterns: 100 Tempo: Variable (236 steps, = 20 to 255) Chords: 2 fingering methods (CASIO CHORD, FINGERED) Rhythm controller: START/STOP, SYN...

Page 4 - BLOCK DIAGRAM

— 2 — BLOCK DIAGRAM CPU MSM 6755B-17 LSI2 Keyboard Buttons LCD LCD Driver SED1278F2A LSI3 Reset IC RN5VD40A IC1 Oscillator X1, Q1 Power Supply Circuit Q201 ~ Q203, Q207, Q208, D205 Power Amp. TA8248K IC201 Filter (L) Q206 Filter (R) Q205 Phone/Output VC VCC DVDD AVDD APO DC + 9V IN DB4 ~ DB7 MIDI IN...

Page 5 - CIRCUIT DESCRIPTION; KEY MATRIX

— 3 — CIRCUIT DESCRIPTION KEY MATRIX NOMENCLATURE OF KEYS KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 C2 G#2 E3 C4 G#4 E5 C6 G#6 KO1 C#2 A2 F3 C#4 A4 F5 C#6 A6 KO2 D2 A#2 F#3 D4 A#4 F#5 D6 A#6 KO3 D#2 B2 G3 D#4 B4 G5 D#6 B6 KO4 E2 C3 G#3 E4 C5 G#5 E6 C7 KO5 F2 C#3 A3 F4 C#5 A5 F6 KO6 F#2 D3 A#3 F#4 D5 A#5 F...

Page 8 - FILTER BLOCK

— 6 — FILTER BLOCK Since the sound signals from the CPU is stepped waveforms, the filter block is added to smooth the waveforms. POWER AMPLIFIER (IC201: TA8248K) The power amplifier is a two-channel amplifier with standby switch.The following table shows the pin function of IC201. Pin No. Terminal I...

Page 9 - ADJUSTMENT; MAIN PCB

— 7 — Output Set Voltmeter R62 3) Equipment connection/Procedure Vop voltage setting InputConnection InputPoint InputSignal Adjust OutputConnection OutputPoint Adjust for VR1 Voltmeter R62 Adjust for 4.40 ~ 4.46 V read-ing on voltmeter under thetemparature 20 ~ 25 ° C. Make fine adjustment accord-in...

Page 10 - MAJOR WAVEFORMS

— 8 — MAJOR WAVEFORMS 1 Clock pulseMSM6755B-17 pin 32 1 2 Power source DVDDJC connector pin 8 3 APO signalJC connector pin 2 2 3 4 Sound waveform (R-ch) Tone: Whistle (59) JC connector pin 5 Key: A4 5 Sound waveform (L-ch) Volume: Max.JC connector pin 4 4 5 6 Button scan signal KO0MSM6755B-17 pin 66...

Page 11 - PRINTED CIRCUIT BOARDS; Top View

— 9 — PRINTED CIRCUIT BOARDS Main PCB JCM443-MA1M Top View Bottom View 5 2 1 3 8 4 6 9 7

Page 12 - SCHEMATIC DIAGRAMS

— 10 — SCHEMATIC DIAGRAMS Main PCB JCM443-MA1M SED1278F2A 150 1.2 K 1 7 6 2 3 4 5 9 8

Page 17 - EXPLODED VIEW

— 15 — EXPLODED VIEW 16 8 7 10 9 11 12 6 R-3 5 15 15 17 18 19 27 25 26 14 20 21 22 13 2 3 4 1 R-1 R-2 23 24

Page 18 - This parts list does not include the cosmetic parts, which; PARTS LIST

Notes: This parts list does not include the cosmetic parts, which p a r t s a r e m a r k e d w i t h i t e m N o . " R - X " i n t h e e x p l o d e dview.C o n t a c t o u r s p a r e p a r t s d e p a r t m e n t i f y o u n e e d t h e s eparts for refurbish. 1. Prices and specifications...

Page 21 - Overseas Service Division

CASIO TECHNO CO.,LTD. Overseas Service Division 8-11-10, Nishi-ShinjukuShinjuku-ku, Tokyo 160-0023, Japan