Casio SA-65 Bedienungsanleitung

SA-65

OFF

POWER

VOLUME

START/STOP MELODY OFF

TEMPO

TONE

PATTERN

SONG

BANK

78 9

45 6

MUSICAL INFORMATION SYSTEM

VOLUME

TEMPO

TONE

PATTERN

SONG BANK

10 SONG BANK

ELECTRONIC KEYBOARD

CONTENTS

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

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

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

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

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

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

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

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

— 1 —

C#3

C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6

D#3 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

ELECTRICAL

Current drain with 7.5 V DC:

No sound output 33 mA ±20 %

Maximum volume 230 mA ±20 %

with keys G3, A#3, B3 and C4 pressed

in Car Horn tone, Volume: Maximum

Speaker output level 1060 mV ±20 %

with key C2 pressed in Street Organ tone

Volume: Maximum

Minimum operating 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; A4 = approx. 442 Hz

Speakers: Two; 8.0cm (output: 0.5 W + 0.5 W)

Input terminals: AC adaptor (7.5 V DC)

Power supply: Two-way

Five AA-size batteries

Battery Life: Approximately six hours on R6P (SUM-3) manganese batteries

AC Adaptor (AD-1)

Power consumption: 7.5 V 2.3 W

Dimensions (HWD): 74 ×650 ×211 mm

(2-15/16 ×25-5/8 ×8-5/16 inches)

Weight: Approximately 1.6 kg (3.53 lbs) (without batteries)

Nomenclature of Keys

— 2 —

KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7

KO0 C3 C#3 D3 D#3 E3

KO1 F3 F#3 G3 G#3 A3 A#3 B3 C4

KO2 C#4 D4 D#4 E4 F4 F#4 G4 G#4

KO3 A4 A#4 B4 C5 C#5 D5 D#5 E5

KO4 F5 F#5 G5 G#5 A5 A#5 B5 C6

KO5 0 1 23 4Tempo Melody

Up Off

KO6 56789

Volume Tempo

Up Down

KO7 Song Pattern Tone Start/ Volume

Bank Stop Down

BLOCK DIAGRAM

CIRCUIT DESCRIPTION

Key Matrix

KO0 ~ KO7

KI0 ~ KI7

Keyboard

Switches

Oscillator

Q102, X101

CPU

MSM6387B-A28

LSI101

Amplifier

AN8053N

IC101

Speaker

VDD

KO8 ~ KO11

COM1, COM2

Q101

Filter

S1 ~ S14

S18 ~ S20

S31 ~ S46

OUT

LCD Driver

KS0035

IC102

LCD

— 3 —

LCD Driver (IC102 : KS0035)

The KS0035 is an LCD driver for a segment type LCD, and it can drive up to 53 segments.

The following table shows the pin functions of IC102.

Pin No. Terminal In/Out Function

1, 2 TEST1, TEST2

—

Not used. Connected to ground.

3 RESET In Power ON reset terminal. On: +5 V Off: 0 V

4 AVDD In +5 V source for the built-in DAC

5 OUT Out Sound waveform output

6 AGND In Ground (0 V) source for the built-in DAC

7 GND In Ground (0 V) source

8 COSI In 21.725 MHz clock pulse input

9 COSO

—

Not used

10 VDD In +5 V source

11 ~ 18 KI0 ~ KI7 In Input terminals from keys and switches

19 KO11 Out Display data output

20 KO10 Out Bit clock output

21 KO9 Out Chip enable 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), the CPU provides sound waveform

in accodance with the pressed key and the selected tone.

The following table shows the pin functions of LSI101.

Pin No. Terminal In/Out Function

1 ~ 14 S1 ~ S14 Out Segment output

15 ~ 17 S15 ~ S17

—

Not used

18 ~ 20 S18 ~ S20 Out Segment output

21 ~ 30 S21 ~ S29

—

Not used

31 ~ 47 S30 ~ S46 Out Segment output

36 S35

—

Not used

48 ~ 54 S47 ~ S53

—

Not used

55 OSC In Terminal for the internal clock generator

56 VDD In +5 V source

57 –INH In Display blanking input

58 VLCD In +5 V source for the internal driver

59 VSS In Ground (0 V) source

60 CE In Chip enable input

61 CLK In Bit clock input

62 DATA In Display data input

63, 64 COM1, COM2 Out Common out put

— 4 —

Amplifier/Voltage Regulator

(IC101: AN8053N)

The right figure shows the internal block of IC101.

16 9

SP AMP

–

+VREF

5V REG

POWER

13456782

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 filter block is added to smooth the waveform.

AVDD

To power amp.

From CPU

AG AG

Q101

2SC1740SR

C106 R105

R104

C108

R106

— 5 —

WAVEFORMS

1Main clock COSI

MSM6387B-A28 pin 8

2Key scan signal KO0

MSM6387B-A28 pin 30

3Key scan signal KO1

MSM6387B-A28 pin 29

4Sound waveform

MSM6387B-A28 pin 5

6Chip enable signal KO9 (CE)

MSM 6387B-A28 pin 21

7Clock for LCD driver KO10 (CLK)

MAM6387B-A28 pin 20

8Display data KO11 (DATA)

MSM6387B-A28 pin 19

5Clock for LCD driver

KS0035 pin 55

Tone : Flute (No. 23)

Volume : 5 (Max.)

— 6 —

PRINTED CIRCUIT BOARD

Main PCB JCM548-MA1M

1432

— 7 —

Main PCB JCM548-MA1M SCHEMATIC DIAGRAMS

— 8 —

Keyboard PCB JCM548-KY1M

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