Casio CTK-650 Manuale utente

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CTK-650

ELECTRONIC KEYBOARD

CTK-650

CONTENTS

SPECIFICATIONS ....................................................................................................1

BLOCK DIAGRAM ...................................................................................................2

CIRCUIT DESCRIPTION

CPU (HD6433298A16P : H8/329) .....................................................................3

DIGITAL SIGNAL PROCESSOR, LSI-S (HG51A115A01FD) ..........................4

KEY TOUCH LSI (HG52E35P) ..........................................................................5

POWER AMPLIFIER (LA4598) .........................................................................6

BUTTON MATRIX .............................................................................................

KEY MATRIX .....................................................................................................8

WIRING DIAGRAM ...................................................................................................

IC LEAD IDENTIFICATION AND INTERNAL CIRCUIT ..........................................10

PCB VIEW AND MAJOR WAVEFORMS .................................................................

SCHEMATIC DIAGRAM ...........................................................................................

PARTS LIST .............................................................................................................15

EXPLODED VIEW ....................................................................................................19

— 1 —

Number of keys: 61

Polyphony: 32-note(max.)

Preset tones: 128

Magical preset: BREAK BEAT 16 MELODYCOMP 8

SHADOW DRUM 4 FREE SESSION 32

TONE STACK 40 KEY SPLIT 12

HYPERACTIVE 16

Auto-accompaniment: Rhythm patterns 128

Tempo Adjustable(40 - 255)

Chords Three system: CASIO CHORD, FINGERD,

FULL-RANGE CHORD

Other Variation pattern, fill-in pattern, intro/ending pattern for each

rhythm.

Song memory: song:one

System:Real-time recording

Memory capacity:Up to 1,300 notes

Registration memory: 4 setups

Sound control pads: Phrases 10

Drums 10

SE/Percussion 10

Controller 2

Digital effects: REVERB 1, REVERB 2, REVERB 3, CHORUS, TREMOLO, PHASE

SHIFTER, ORGAN SP, ENHANCER, FLANGER, EQLOUNDNESS

DEMO tunes: 3 tunes

Other functions: Transpose (F# ~ C ~ F : half-note)

Tuning adjustable A4 = 440KHz 50 cents increments

Volume control (Main /Accompaniment)

Speakers: 12cm diameter X 2 (Output:2W+2W)

I/O terminals: Power supply 9V DC jack

Headphones Stereo mini jack

Output impedance:100 ohm

Output voltage:4.5V(RMS. max)

Assignable jack Standard jack

MIDI IN, OUT

Power supply: 3-way AC/DC power sources;

Batteries Six D-size

Battry life Approximately 5 hours on R20P(SUM-1)

AC Required optional AD-5 AC adaptor

Car battery Required optional CA-5 car adaptor

Auto power off: Approximately 6 minutes after the last operation

Power consumption: 7.7W

Dimensions: 942 X 367 X 135 mm(HWD)

31 7/16" X 14 1/2" X 4 3/8" inches(HWD)

Weight: 5.2kg(11.7lbs) excluding batteries

Accessory: Score stand

SPECIFICATION

— 2 —

BLOCK DIAGRAM

Keyboard

KC0~KC7

SI0~SI7

FI0~FI7

Key Touch

LSI

HG52E35P

D0~D7

RAM-1(64K)

MN4464-08L-1

CPU

HD6433298A16P

(H8/329)

7-Segment

LED LO0~LO4

LED driver

BA612

~Lp

KO0~KO5

Buttons

KI1~KI7

100K

VDD

Power Switch

MIDI

INOUT

RAM-2(64K)

MN4464-08L-2

EA0~EA12

ED0~ED7

LSI-S

HG51A115A01FD

RA0~RA19

RD0~RD15

ROM(16M)

TC5316200CP-C079

WCK1 SLOP BCK

D/A Converter

µPD6376CX

Filter Filter

Main

Volume

Power Amplifier

LA4598

Output

Speakers

Address Bus

KO0~4

— 3 —

CIRCUIT DESCRIPTION

CPU(HD6433298A16P : H8/329)

The 16-bit CPU contains a 32K-byte ROM, a 1K-byte RAM, an 8-bit A/D converter, timers and I/O ports. The

CPU accesses to the DSP, Key Touch LSI, RAM, buttons and LEDs. But the CPU directly receives MIDI and

pedal signals.

Pin No. Terminal In/Out Function

1 P40/IRQ2 In KO signal data.

2 P41/IRQ1 In Timing signal for KO signal.

3 P42/IRQ0 In APO signal output.

4 P43/-RD Out Read signal outpt.

5 P44/-WR Out Write signal output.

7 P46/PHI Out System clock output.

8 P47/-WAIT In Wait signal input

9 P50/Txd Out MIDI signal output.

10 P51/Rxd In MII signal input.

11 P52/SCK Out Reset signal output.

12 -RESET In Reset signal input.

13 -NMI In Power on signal input.(Low active)

14 Vcc In +5V source.

15 -STBY In Standby signal input. Connected to +5V.

16 Vss In Ground(0V) source.

17,18 XTAL,EXTAL In/Out 20MHz clock pulse input/output. Connected to crystal.

19,20 MD1,MD0 In Selection for system.

MD1 MD0 MODE

0 1 MODE-1 : Internal ROM mode

1 0 MODE-2 : Non internal ROM mode

1 1 MODE-3 : Single chip mode

21 AVss In Analog ground source.

22 P70/AN0 In Connected to ground.

23~29 P71/AN0~P77/AN7 In KI signal input.

30 AVcc In +5V source.

31~38 P60/FTCI~P67/TMO1 Out Control signal for 7-segment LED.

39 Vcc In +5V source.

41~56 P26/A14~P10/A0 Out Address bus.

48 Vss In Ground(0V) source.

57~64 P30/D0~P37/D7 In/Out Data bus.

— 4 —

DIGITAL SIGNAL PROCESSOR, LSI-S (HG51A115A01FD)

The LSI-S is a 16-bit DSP(Digital Signal Processor) and accessable to 16M-bit sound source ROM and to 64K-

bit RAM. The DSP can read data of 32 polyphonic note from the ROM and provides two 16-bit serial dat with

timing signals to each channel's D/A converter.

Pin No. Terminal In/Out Function

1~7 D7~D0 I/O Data bus.

11 GND7 In Ground(0V) source.

12 CK16 Out 16.384MHz clock pulse output.

13 VCC6 In +5V source

14 CK0 In Clock pulse input. Connected to terinal CK16.

16 VCC1 In +5V source.

17 GND1 In Ground(0V) source.

18,19 XTI, XTO In/Out 16.384MHz clock pulse input/output. Connected to crystal.

21 CCSB I Chip select signal input.

22~25 CA0~CA3 In Address bus.

26 CE0 In Connected to ground.(ROM interface ontrol terminal)

27 CWRB In Write enable signal.

28 CRDB In Read enebla signal.

33 RESB In Reset sna iput

34 TESB In Connected to +5V.

40~49

52~57 RD0~RD15 In Data bus for sound source ROM.

50 VCC2 In +5V source.

51 GND2 In Ground(0V) source.

59 RA22 Out Chip enable signal output for ROM.

62~73

75~82 RA0~RA19 Out Address bus for sound source ROM.

74 GND5 In Ground(0V) source.

84 VCC3 In +5V source.

85 GND3 In Ground source.

86 WOK1 Out Ward clock for DAC.

88 SOLP Out 16-bit serial data for L-channel DAC.

89 BOK Out Bit clock for DAC.

93 VCC5 In +5V source.

95,97

99~105

107,109

110,112 EA0~EA12 Out Address bus for RAM.

96 EWEB Out Write enable signal for RAM.

106 EOEB Out Read enable signal for RAM.

108 VCC7 In +5V source.

111 ECEB Out Chip eneble signal for RAM.

118 VCC4 In +5V source.

119 GND4 In Ground(0V) source.

123~130 ED0~ED7 In/Out Data bus for RAM.

131 GND6 In Connected to Ground.

132 SSI In Connected to Ground.

133 SBCK In Connected to Ground.

134 SWCK In Connected to Ground.

— 5 —

KEY TOUCH LSI(HG52E35P)

By counting the time between the first key input signal FI and the second SI from the keyboard unit, the key

touch LSI detects key velocity of 256-step. Then the LSI sends the CPU note numbers and their velocities.

Pin No. Terminal In/Out Function

1 REQB Out Interrupt request. Not used.

2,3 FI10,SI10 In Connected to +5V.

4 VCC In +5V source.

5 CRDB In Read enable signal.

6 CWRB In Write enable signal.

7 CCBB In Chip select signal.

8 T In Test terminal. Connected to +5V.

9 STYB In Standby terminal. Connected to +5V.

10 RESB In Reset signal.

11 W In Test terminal. Connected to +5V.

12 CKI In External clock input.

13 TMD In Test terminal. Connected to ground.

14 TST In Test terminal. Connected to ground.

15 CKO Out External clock output. Not used.

16 GND In Ground(0V) source.

17 XIN In Clock pulse input. Connected to ground.

18 XOUT Out Clock pulse output. Not used.

19 TRES In Test terminal. Connected to ground.

20~28 CD0~CD7 In/Out Data bus.

24 GND In Ground(0V) source.

29~31 CA0~CA2 Out Address bus.

32 VCC In +5V source.

33~4333~43

53~5553~55

57~6357~63

FI0~FI9FI0~FI9

SI0~SI9SI0~SI9 In Key input signal.

40 VCC In +5V source.

44~53 KC0~KC7 Out Key scan signal.

48,56 GND In Ground(0V) source.

54 VCC In +5V source.

Keyboard

KC0~KC7

FI0~FI9

SI0~SI9

Key Touch LSI

HG52E35P

RESB

CCSB

CWRB

CRDB

CKI

P30/D0~P37/D7

P12/A2~P10/A0 CA0~CA2

CD0~CD7

D0~D7

A0~A2

CPU

HD6433298A16P

P52/SCK

A12

A14

P44/-WR

P42/IRQ0

P43/-RD

P46/PHI

— 6 —

POWER AMPLIFIER(LA4598)

LA4598 is 2-channel power amplifier with standby switch.

Pin No. Terminal In/Out Function

1 Power GND In Ground(0V) source.

2 Ch1 B.S. - Terminal for bootstrap capacitor.

3 Ch1 OUT Out Channel 1 output.

4 VCC In +9V source.

5 Ch1 N.F. In Negative feedback input.

6 Ch1 IN In Channel 1 input.

7 D.C. - Terminal for decoupling capacitor.

8 Pre GND In Ground(0V) source.

9 Standby In Control signal input. 0V:OFF / +9V:ON

10 Ch2 IN In Channel 2 input.

11 Ch2 N.F. In Negative feedback input.

12 Ch2 OUT Out Channel 2 output.

13 Ch2 B.S. - Terminal for bootstrap capacitor.

14 NC - Not used.

11 13

Input

AMP. Pre-drive

AMP. Power

AMP.

TSD protector

Stand by

Bias circuit

Input

AMP. Pre-drive

AMP. Power

AMP.

Ch1 IN

Ch1 NF

Pre GND

D.C.

Ch2 IN

CH2 NF

CH2 BS

CH1 OUT

POWER GND

VCC

STAND BY

CH2 OUT

CH2 BS

INTERNAL BLOCK DIAGRAM

— 7 —

BUTTON MATRIX

Nomenclature of Keys

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

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

D#3

C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6A6G6F6E6D6 C7

C#3A#2G#2

F#2D#2

C#2 A#6

G#6F#6D#6

C#6

KI1 KI2 KI3 KI4 KI5 KI6 KI7

KO0 3 0 2 1 SONG NO.

KO1 SPLIT DEMO LAYER

KO2 + 9 TONE 7 8 RHYTHM

KO3 VARIATION-A INTRO VARIATION-B

KO4 6 – MIDI 5 4

KO5 B CHORD D A C

ACCOMP

VOLUME

REGIST-

RATION

MEMORY

MAGICAL

PRESET

TEMPO

MULTI

EFFECTOR

END/

SYNCHRO

TOUCHCOVE

ON/OFF

START/STOP

TEMPO

DOWN

TRANSPOSE

TUNE

— 8 —

KEY MATRIX

Note:Each key has two contacts, the first contact 1 and second contact .

KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7

FI0 C2 1 C#2 1 D2 1 D#2 1 E2 1 F2 1 F#2 1 G2 1

SI0 C2 2 C#2 2 D2 2 D#2 2 E2 2 F2 2 F#2 2 G2 2

FI1 G#2 1 A2 1 A#2 1 B2 1 C3 1 C#3 1 D3 1 D#3 1

SI1 G#2 2 A2 2 A#2 2 B2 2 C3 2 C#3 2 D3 2 D#3 2

FI2 E3 1 F3 1 F#3 1 G3 1 G#3 1 A3 1 A#3 1 B3 1

SI2 E3 2 F3 2 F#3 2 G3 2 G#3 2 A3 2 A#3 2 B3 2

FI3 C4 1 C#4 1 D4 1 D#4 1 E4 1 F4 1 F#4 1 G4 1

SI3 C4 2 C#4 2 D4 2 D#4 2 E4 2 F4 2 F#4 2 G4 2

FI4 G#4 1 A4 1 A#4 1 B4 1 C5 1 C#5 1 D5 1 D#5 1

SI4 G#4 2 A4 2 A#4 2 B4 2 C5 2 C#5 2 D5 2 D#5 2

FI5 E5 1 F5 1 F#5 1 G5 1 G#5 1 A5 1 A#5 1 B5 1

SI5 E5 2 F5 2 F#5 2 G5 2 G#5 2 A5 2 A#5 2 B5 2

FI6 C6 1 C#6 1 D6 1 D#6 1 E6 1 F6 1 F#6 1 G6 1

SI6 C6 2 C#6 2 D6 2 D#6 2 E6 2 F6 2 F#6 2 G6 2

FI7 G#6 1 A6 1 A#6 1 B6 1 C7 1

SI7 G#6 2 A6 2 A#6 2 B6 2 C7 2

Key

Second contact 2 First contact 1 FI

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