Casio SA-65 Manual de usuario
SA-65
SA-65
ON
OFF
POWER
VOLUME
START/STOP MELODY OFF
TEMPO
TONE
PATTERN
SONG
BANK
78 9
45 6
1
0
23
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
1
2Key scan signal KO0
MSM6387B-A28 pin 30
3Key scan signal KO1
MSM6387B-A28 pin 29
2
3
4Sound waveform
MSM6387B-A28 pin 5
45
6Chip enable signal KO9 (CE)
MSM 6387B-A28 pin 21
7Clock for LCD driver KO10 (CLK)
MAM6387B-A28 pin 20
6
7
8Display data KO11 (DATA)
MSM6387B-A28 pin 19
8
5Clock for LCD driver
KS0035 pin 55
Tone : Flute (No. 23)
Volume : 5 (Max.)
— 6 —
PRINTED CIRCUIT BOARD
Main PCB JCM548-MA1M
1432
56
7
8
— 7 —
Main PCB JCM548-MA1M SCHEMATIC DIAGRAMS
1
4
3
2
5
6
7
8
— 8 —
Keyboard PCB JCM548-KY1M
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