Casio SA-65 Service Manual Download Page 2

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CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 7

Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Summary of Contents for SA-65

Page 1: ...SA 65 SA 65 ON OFF POWER VOLUME START STOP MELODY OFF TEMPO TONE PATTERN SONG BANK 7 8 9 4 5 6 1 0 2 3 MUSICAL INFORMATION SYSTEM VOLUME TEMPO TONE PATTERN SONG BANK 10 SONG BANK ELECTRONIC KEYBOARD...

Page 2: ...CONTENTS Specifications 1 Block Diagram 2 Circuit Description 2 Waveforms 5 Printed Circuit Board 6 Schematic Diagrams 7 Exploded View 9 Parts List 11...

Page 3: ...erating voltage 5 5 V SPECIFICATIONS GENERAL Keyboard 37 keys 3 octaves mini size Polyphony 4 notes maximum Tones 100 Patterns 30 RHYTHM FREE SESSION FUNNY Song band 10 tunes melody off Tuning Fixed A...

Page 4: ...5 B5 C6 KO5 0 1 2 3 4 Tempo Melody Up Off KO6 5 6 7 8 9 Volume Tempo Up Down KO7 Song Pattern Tone Start Volume Bank Stop Down BLOCK DIAGRAM CIRCUIT DESCRIPTION Key Matrix KO0 KO7 KI0 KI7 Keyboard Swi...

Page 5: ...nable signal for the LCD driver 22 KO8 Out Display blanking output 23 30 KO7 KO0 Out Key scan signal outputs CPU LSI101 MSM6387B A28 Containing a sound data ROM and a DAC Digital to Analog Convertor t...

Page 6: ...V REG POWER 1 3 4 5 6 7 8 2 15 14 13 12 11 10 VCC NC CONT 5 V VREG NC NC NC PRE GND SPO NC SP GND PC 1 PC 2 SPI SPM VREF Filter Block Since the sound signal from the CPU is a stepped waveform the filt...

Page 7: ...scan signal KO1 MSM6387B A28 pin 29 2 3 4 Sound waveform MSM6387B A28 pin 5 4 5 6 Chip enable signal KO9 CE MSM 6387B A28 pin 21 7 Clock for LCD driver KO10 CLK MAM6387B A28 pin 20 6 7 8 Display data...

Page 8: ...6 PRINTED CIRCUIT BOARD Main PCB JCM548 MA1M 1 4 3 2 5 6 7 8...

Page 9: ...7 Main PCB JCM548 MA1M SCHEMATIC DIAGRAMS 1 4 3 2 5 6 7 8...

Page 10: ...8 Keyboard PCB JCM548 KY1M...

Page 11: ...9 EXPLODED VIEW 3 R 1 10 4 11 14 8 9 12 13 1 2 R 2 7 15 6 5 10...

Page 12: ...ur spare parts department if you need these parts for refurbish 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...

Page 13: ...OSCILLATOR CERAMIC EFO EN2175C4 1 B J101 3501 3731 JACK POWER HEC2305 01 250 1 A 2 6926 1230 PCB ASSY KY M140580 1 1 B D201 D237 2390 1344 DIODE 1SS133T 77 T 37 B Mechanical Parts 3 6926 1000 PANEL D...

Page 14: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 MA0600571A...