Casio SK-60 User manual

ELECTRIONIC KEYBOARD

SK-60

MELODY

ON/OFF

TIME

SML



1-2-3



1-2-3-4



1-2

CYCLE

REVERSE CLEAR

RELEASE

EFFECT

LOOP

TUNE

RESET

TONES

12 FREE SESSIONS

23

56

61

36

41

@



31

51

POPS 1

BIG BAND

SWING

FOX TROT

POPS 2

WALTZ 1

WALTZ 2

POLKA

SKA

TEX-MEX

COUNTRY

BAROQUE

MARY HAD A LITTLE LAMB

AMAZING GRACE

ACH DU LIEBER AUGUSTIN

LONDON BRIDGE

JOY TO THE WORLD

GREENSLEEVES

JINGLE BELLS

SILENT NIGHT

O CHRISTMAS TREE

YANKEE DOODLE

SANTA LUCIA

MARCH FROM “THE NUTCRACKER”

VOICES OF REASON (ORIGINAL SONG)

TWINKLE TWINKLE LITTLE STAR

DOOIN’ MY THING (ORIGINAL SONG)

ODE TO JOY

LITTLE BROWN JUG

SPRING FROM “THE FOUR SEASONS”

WHEN THE SAINTS GO MARCHING IN

FRÈRE JACQUES

OLD MacDONALD HAD A FARM

AULD LANG SYNE

LONDONDERRY AIR

ROW, ROW, ROW YOUR BOAT

DOO1 (MALE)

DOO2 (MALE)

BAH (BASS)

BOM (BASS)

VOICE PERCUSSION



DOO-BEE

BOM-BAH

DOO-BEE-DEE

DOO-BEE-BAH

DOO-BEE-DEE-BAH

DOO-BEE-DOO-BAH

SIREN 2

TELEPHONE

SPACE 1

SPACE 2

FUNNY

DOO (FEMALE)

BEE (FEMALE)

DEE (FEMALE)

BAH (FEMALE)

AHH (CHOIR)

OOH (CHOIR)

LA (CHILDREN)

PIANO

ELEC PIANO

ORGAN

ACCORDION

GUITAR

VIBRAPHONE

VIOLIN

STRINGS

TRUMPET

CLARINET

SAX

FLUTE

SIREN 1

HUMAN VOICE HUMAN VOICE



(CYCLE)

SONG BANK



SONGS

POWER

OFF

VOLUME TEMPO TONE

SONG BANK

START/

STOP MAGICAL

SINGER

PAD

EFFECT SAMPLE

EDIT SAMPLING

PAD

123

456

— 2 —

CONTENTS

Specifications .......................................................................................................................... 2

Block Diagram......................................................................................................................... 3

Circuit Description ................................................................................................................... 4

Major Waveforms .................................................................................................................... 7

Printed Circuit Board ...............................................................................................................8

Schematic Diagrams ............................................................................................................... 9

Exploded View ...................................................................................................................... 11

Parts List ............................................................................................................................... 13

SPECIFICATIONS

GENERAL

Number of keys: 32

Polyphonic: 12-note

Preset tones: 18

Human voice tones: 12

Voice cycles: 6

Song bank: 24-tune

Free sessions: 12

Pads: 4

Pad settings: Sampled sounds, effects, voice percussion

Sampling method: 8-bit Differential Pulse Coded Modulation (DPCM)

Sampling rate: 13,021 kHz

Sampling duration: 2.4 seconds maximum

Tuning control: Approx. 440 Hz

Built-in speakers: 4 inch dia. 2 W input rating: 2 pcs

Terminals: 7.5 V DC

Power source: 2-way AC or DC source

AC: AC adapter

DC: 5 AA size dry batteries

Power consumption: 2.0 W

Dimensions(HWD): 416 ×222 ×530 mm (16-3/8 ×8-6/8 ×20-7/8 inches)

Weight: 1.0 kg (2.2 lbs) excluding batteries

ELECTRICAL

Current drain with 7.5 V DC:

No sound output 50 mA ±20%

Maximum volume 200 mA ±20%

with white keys F4 to C6 pressed in Bah tone (No. 44)

Power off 80 µA (maximum)

Speaker output level (Vrms with 4 Ωload):

with key C4 pressed in Accordion tone 480 mV ±20%

Volume: maximum

Minimum operating voltage 5.8 V

— 3 —

CPU

LSI1

MSM6755B-10 Keyboard

Buttons

PG

Q1, X1

Reset IC

IC1

RE5VL40AA

Q103

Voltage Regulator

Q101, Q102, D102

Mic. Amp.

Q105, Q106

Mic. input

VCC



DVDD

AVDD

Power Supply Circuit

APO

MD0 ~ MD7 MA0 ~ MA14

RAM (256 Kbit)

LSI2

HM62256BLSP-8

KI0 ~ KI3

KO0 ~ KO7

KI4 ~ KI7

Amp./Voltage Regulator

IC101

AN8053N

BLOCK DIAGRAM

— 4 —

KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7

KO0 (SO0) F3 C#4 A4 F5 A 1 1 Song

KO1 (SO1) F#3 D4 A#4 F#5 B 2 2 Start/

Stop

KO2 (SO2) G3 D#4 B4 G5 C 3 3 Melody

On/Off

KO3 (SO3) G#3 E4 C5 G#5 D 4 4 Tone

KO4 (SO4) A3 F4 C#5 A5 Volume

Up Magical

Singer 5

KO5 (SO5) A#3 F#4 D5 A#5 Volume

Down Sampling 6

KO6 (SO6) B3 G4 D#5 B5 Tempo

Up Edit Effect

KO7 (SO7) C4 G#4 E5 C6 Tempo

Down

CIRCUIT DESCRIPTION

KEY MATRIX

NOMENCLATURE OF KEYS

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

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

— 5 —

Pin No. Terminal In/Out Function

1 MA14 Out Address bus

2 MWEB Out Write enable signal output

3 NC0 — Not used.

4 ~ 19 MA0 ~ MA13 Out Address bus

13 MRDB Out Read enable signal output

17 MCSB Out Chip select signal for the RAM

20 ~ 27 MD0 ~ MD7 In/Out Data bus

28, 29 NC1, NC2 — Not used.

30 DGND In Ground source

31 DVCC In +5 V source

32, 33 XTL0, XTL1 In/Out 20 MHz clock input/output

34 NC3 — Not used.

35 RSTB In Reset signal input

36 RXD — Not used. Connected to +5 V.

37 TXD — Not used.

38 NMI In Power ON signal input

39 APO Out APO(Auto Power Off) signal output

40 NC4 — Not used.

41 REFH Out Terminal for the built-in DAC/ADC

42, 43 NC5, NC6 — Not used.

44 DAOR Out Sound waveform output

45 NC7 — Not used.

46 AVdac In +5 V source for the built-in DAC/ADC

47 DAOL — Not used.

48 REFL Out Terminal for the built-in DAC/ADC

49 AGdac — Not used.

50 AGadc In Ground source for the built-in ADC

51 ANI In Analog signal input

52 AVadc In +5 V source for the built-in ADC

53 NC8 — Not used.

54 MOD0 In Mode selection terminal

55, 56 MOD1, MOD2 In Mode selection terminal

57 P40 In APO cancellation signal input

58 ~ 65 KI0 ~ KI7 In Terminals for key/button input signal

66 ~ 73 KO1 ~ KO8 Out Terminals for key scan signal

74 ~ 78 — — Not used.

79 LVCC In +5 V source

80 ~ 95 — — Not used.

96 LGND In Ground source

97 ~ 100 — — Not used.

CPU (LSI1: MSM6755B-10)

Containing a sound data ROM and a DAC (Digital to Analog Convertor), the CPU provides sound waveform

in accordance with the pressed key and the selected tone. The CPU also records the voice picked up the

microphone, using the built-in ADC (Analog to Digital Convertor) and the RAM.

The following table shows the pin functions of LSI1.

— 6 —

Oscillator

20 MHz

CPU

APO

DVDD

From power switch

SWITCH: OFF ON

+5 V +5 V0 V

APO: "L" "H"

+7.5 V 0 V

AMPLIFIER/VOLTAGE REGULATOR (IC101: AN8053N)

The right figure shows the internal block of IC 101.

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

POWER SUPPLY CIRCUIT

The power supply circuit generates two voltages DVDD (+5 V) and AVDD (+5 V). DVDD (+5 V) is always

generated but AVDD (+5 V) is controlled by APO signal output from the CPU.

OSCILLATOR

+5 V source of the oscillator is controlled by transistor Q107. When selecting the power switch at on position,

transistor Q107 turns on to become 20 MHz oscillation on. To keep the oscillation on, the CPU provides "H"

of APO signal.

— 7 —

MAJOR WAVEFORMS

1Clock pulse

MSM6755B-10 pin 32 2Key scan signal KO6

MSM6755B-10 pin 72

3Key scan signal KO7

MSM6755B-10 pin 73

4Sound waveform

MSM6755B-10 pin 44 5Mic. amp. input

Terminal PM-BL

6Mic. amp. output

MSM6755B-10 pin 51

Tone: No. 22

Key: A4

— 8 —

2 1 4 63 5

PRINTED CIRCUIT BOARD

Main PCB KDM415-MA1M

— 9 —

SCHEMATIC DIAGRAMS

Main PCB KDM415-MA1M/KY2M

— 10 —

Keyboard PCB KDM415-KY1M

Other manuals for SK-60

Table of contents

Popular Electronic Keyboard manuals by other brands

Yamaha

Yamaha PortaTone PSR-225GM owner's guide

Behringer

Behringer U-CONTROL UMX49 user manual

Yamaha

Yamaha Portatone X2500 owner's guide

Yamaha

Yamaha Portatone PSR-100 owner's guide

Keith McMillen Instruments

Keith McMillen Instruments K-Board Pro 4 Get started

Yamaha

Yamaha PortaSound PCS-30 owner's guide

Roland

Roland Juno-6 Operation manual

McGrey

McGrey 6170 user manual

Yamaha

Yamaha PortaTone PSR-41 owner's guide

HDC

HDC Kurzweil KP300X user manual

Akai

Akai MPK88 quick start guide

Waldorf

Waldorf IRIDIUM quick start

Yamaha

Yamaha NP-30 Mode d'emploi

Yamaha

Yamaha Portatone PSR-38 owner's guide

Yamaha

Yamaha PortaTone PSR-40 owner's guide

Behringer

Behringer MOTÖR 61 user manual

Yamaha

Yamaha PortaTone PSR-62 owner's guide

Yamaha

Yamaha PS-20 owner's manual