casio AP-500 Service Manual

AP-500

INDEX

JAN. 2007

AP-500

ELECTRONIC KEYBOARD

Specifications ---------------------------------------------------------------------------------------------- 1

Block Diagrams-------------------------------------------------------------------------------------------- 2

Circuit Description --------------------------------------------------------------------------------------- 3

Printed Circuit Board ------------------------------------------------------------------------------------ 5

Disassembly ------------------------------------------------------------------------------------------------ 9

Diagnostic Program ------------------------------------------------------------------------------------ 17

Exploded View ------------------------------------------------------------------------------------------- 21

Parts List--------------------------------------------------------------------------------------------------- 23

Schematic Diagrams ----------------------------------------------------------------------------------- 28

SPECIFICATIONS

GENERAL

Keyboard 88-key piano keyboard, with Touch Response Maximum Polyphony 128 notes Tones 164 (with Layer and Split) Effects DSP, Reverb (4 types), chorus (4 types), Acoustic Resonance, Brilliance (-3 to -1, 1 to 3) Metronome • Beats: 0, 2, 3, 4, 5, 6

• Tempo Range: 20 to 255

Demo Songs • Number of Songs: 74 songs (All-song repeat play) Music Library • Number of Songs: 60

User Songs: Up to 10 (Up to approximately 3.1 MB; up to approximately 318 KB per song)* * Based on 1 KB = 1024 bytes, 1 MB = 10242 bytes.

• Song volume: Adjustable

• Part On/Off: L, R

Recorder • Functions: Real-time recording, playback

• Number of Songs: 5

• Number of Tracks: 2

• Capacity: Approximately 50,000 notes total (Up to approximately 10,000 notes per song)

• Recorded Data Protection: Built-in flash memory

Pedals Damper, soft, sostenuto Other Functions • Touch Select: 3 types, Off

• Transpose: 1 octave (-6 to 0 to 5)

• Tuning: A4 = 440.0 Hz ±50 cents (variable)

MIDI 16-channel multi-timbre receive SD Memory Card • SD memory card slot

• Supported SD Memory Cards: Up to 1 GB (Larger capacity cards not supported.)

• Functions: SMF playback, data storage, data recall, card format

Inputs/Outputs • PHONES jack: Stereo standard jacks ✕ 2

• MIDI THRU/OUT/IN terminals

• LINE IN R, L/MONO jacks: Standard jacks ✕ 2

Input impedance: 7.0KΩ Input Voltage: 290mV (RMS)

• LINE OUT R, L/MONO jacks: Standard jacks ✕ 2

Output impedance: 1.1KΩ Output Voltage: 2.3V (RMS) MAX

• USB port: Type B

• Pedal connector

Speakers ø16cm ✕ 2 + ø5cm ✕ 2 (Output 30W + 30W) Power Requirements AP-500: 120V

AP-500V: 220-240V

Power Consumption AP-500: 78W

AP-500V: 78W

Dimensions Digital Piano and Stand: 138.1 (W) ✕ 47.3 (D) ✕ 87.4 (H) cm

(54 7/16 ✕ 18 10/16 ✕ 34 7/16 inch)

Weight Digital Piano and Stand: approximately 53.0kg (116.8 lbs)

• Specifications and designs are subject to change without notice.

• The power cord of the AP-500 is hard-wired to the digital piano.

• The power cord of the AP-500V is detachable.

— 1 —

BLOCK DIAGRAM

TWEETER (R)

(R)

SPEAKERS

(L)

TWEETER (L)

Phones

L R

JACK PCB (M332-JKA2)

VOLUME PCB (M332-JKA3)

Main

Volume

CN403

CN404

SUB PCB (M332PSA1)

Power Supply Circuit

IC201, D211~D216, C209, 211, 212,

215, 217, 219, 220, 225, 229

VFVCVD18 VA12 VE5VA18

Power Amplifier

CN207

CN216

IC202

STK402-070

Filter

IC205

NJM2068M

CN220

CN1

IC10

CS4351

D00 BCK WCK SYSCK

VD5

Power Switch

POWER SUPPLY PCB

(M332-ACA1)

CN406

CN206CN217

JACK PCB (M332-JKA1)

CN402

CN3

Fuse FU1

Power LED

POWER LED PCB

CN1

Filter

IC401

NJM2068D

(M408-MDA1)

Transformer

(M332-JKA5)

MAIN PCB

USB PCB (M332-JKA4)

SD CARD PCB (M332-SDA1)

Smart media Unit

PEDAL PCB (M332-PDA2)

DAMPER

CN2

CN3

SOFT

SOSTENUTO

PEDAL PCB (M332-PDA1)

KEYBOARD PCBs (MCPZ-KYA/KYB)

Keyboard

C405

CN751

CN1

CN803

CN9 CN7

IC9

74VHC541

CN11

KC0 ~ KC7

SI0 ~ SI10, FI0, FI10

CONSOLE PCB (M332-CNB2)

SOFT SOSTENUTO DAMPER

KEYBORD

CONTROLLER

IC11

CN14

uPD65942GA

Buttons

MPU

IC5

MB91F036PFF

CK12M

RSTB

SIN2

SOOT2

CN604

CN602

TXDO TXDI

CN4

CN600

IC601

uPD65881GK

SDA0 ~ SDA11, BA0, BA1

SDD0 ~ SDD15

EA0 ~ EA16

EA0 ~ ED7

Control signal

D8 ~ D15

A1 ~ A20

D0 ~ D15

CONSOLE PCB (M332-CNA1)

Buttons

RAM (128Mbit)

IC2

EDS1216AATA

RAM (1Mbit)

IC3

CY62128DV30LL

NAND FLASH (256Mbit)

IC6

NAND256W3A2BN

RAM (16Mbit)

IC7

MB82D01181E60L

CONSOLE PCB (M332-CNB1)

CN601

Buttons

CN603

— 2 —

CIRCUIT DESCRIPTION

KEY MATRIX

KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7

FI0 A01 A0#1 B01 C11 C1#1 D11 D1#1 E11

SI0 A02 A0#2 B02 C12 C1#2 D12 D1#2 E12

FI1 F11 F1#1 G11 G1#1 A11 A1#1 B11 C21

SI1 F12 F1#2 G12 G1#2 A12 A1#2 B12 C22

FI2 C2#1 D21 D2#1 E21 F21 F2#1 G21 G2#1

SI2 C2#2 D22 D2#2 E22 F22 F2#2 G22 G2#2

FI3 A21 A2#1 B21 C31 C3#1 D31 D3#1 E31

SI3 A22 A2#2 B22 C32 C3#2 D32 D3#2 E32

FI4 F31 F3#1 G31 G3#1 A31 A3#1 B31 C41

SI4 F32 F3#2 G32 G3#2 A32 A3#2 B32 C42

FI5 C4#1 D41 D4#1 E41 F41 F4#1 G41 G4#1

SI5 C4#2 D42 D4#2 E42 F42 F4#2 G42 G4#2

FI6 A41 A4#1 B41 C51 C5#1 D51 D5#1 E51

SI6 A42 A4#2 B42 C52 C5#2 D52 D5#2 E52

FI7 F51 F5#1 G51 G5#1 A51 A5#1 B51 C61

SI7 F52 F5#2 G52 G5#2 A52 A5#2 B52 C62

FI8 C6#1 D61 D6#1 E61 F61 F6#1 G61 G6#1

SI8 C6#2 D62 D6#2 E62 F62 F6#2 G62 G6#2

FI9 A61 A6#1 B61 C71 C7#1 D71 D7#1 E71

SI9 A62 A6#2 B62 C72 C7#2 D72 D7#2 E72

FI10 F71 F7#1 G71 G7#1 A71 A7#1 B71 C81

SI10 F72 F7#2 G72 G7#2 A72 A7#2 B72 C82

NOMENCLATURE OF KEYS

A#1A#0 G#1F#1D#1C#1 A#6G#6F#6D#6C#6

C1 D1 E1 F1 G1 A1 B1A0 B0

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

D#3

C#3A#2G#2F#2D#2C#2

F#3G#3 A#3 C#4D#4 F#4G#4A#4 C#5D#5 F#5G#5 A#5

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

— 3 —

C#7

A#7G#7F#7D#7

B7A7G7F7E7D7 C8

LED MATRIX

LL0

LL1

LL2

1LL0

1LL1

1LL2

2LL0

2LL1

2LL2

LH9

GRAND

PIANO 1

GRAND

PIANO 2

GRAND

PIANO 3

1LH23

REC

PLAY

–––

LH10

ELEC

PIANO 1

ELEC

PIANO 2

ELEC

PIANO 3

1LH24

R/2

L/1

–––

LH11

60'S

E.PIANO

HARPSI-

CHORD

VIBRA-

PHONE

1LH25

MUSIC

LIBRARY

PLAY/STOP

–––

LH12

PIPE

ORGAN

PERC

ORGAN

STRINGS

2LH7

–––

CHORUS

REVERB

SPLIT

LH13

ACOUSTIC

BASS

RIDE ACO

BASS

VARIOUS/

GM TONES

2LH8

–––

BRILLIANCE

CARD

–––

BUTTON MATRIX

SI3

SC3

SC4

SC5

SC6

1SC0

1SC1

1SC2

2SC4

2SC5

2SC6

TEMPO

BEAT

METRONOME

VOLUME

SONG-ACCOMP

VOLUME

1SI0

YES

왖

–––

SYNCHRO/

FILL-IN

–––

SI4

MODE

TOUCH

RESPONSE

TRANSPOSE

TUNE

1SI1

–––

왔

INTRO/

ENDING

–––

SI5

LAYER

BALANCE

EFFECT

MIDI

OTHERS

1SI2

START/

STOP

RECORDER

TEMPO/

SETTING

–––

SI6

ACOUSTIC

BASS

RIDE ACO

BASS

–––

1SI3

PART/

TRACK

RHYTHM

METRONOME

–––

SI7

TONE

SELECT

–––

2SI6

–––

SPLIT

POINT

REVERB

TYPE

2SI7

–––

CHORUS

TYPE

BRILLIANCE

LEVEL

CARD

— 4 —

Main PCB M408-MDA1

PRINTED CIRCUIT BOARDS

Console PCB M332-PSA1

Top View

Bottom View

— 5 —

Sub PCB M332-CNA1

Top View

Console PCB M332-CNB1

Bottom View

Console PCB M332-CNB2

— 6 —

Jack PCB M332-JKA1

Jack PCB M332-JKA2

Jack PCB M332-JKA3

Jack PCB M332-JKA4 Jack PCB M332-JKA5

— 7 —

SD CARD PCB M332-SDA1

Top View

Power supply PCB M332-PDA1

Bottom View

Power supply PCB M332-PDA2

— 8 —

1. Remove 6 screws.

2. Remove 2 T-BRD-S assy.

DISASSEMBLY

3. Remove 6 screws.

4. Remove the T-BRD-M assy.

— 9 —

5. Remove the Key cover.

— 10 —

6. Removing the M332-MDA1 PCB 6-1.Remove the 6 connectors, release the lock and then remove the FPC.

Connector

(M332-CNA1)

FPC

(Keyboard)

Connector

(M332-JKA4)

Connector

(M332-SDA1)

Connector

(M332-JKA1)

Connector

(M332-PSA1)

6-1. Remove 4 screws and the M332-MDA1 PCB.

7. Removing the M332-PSA1 PCB 7-1. Remove the 8 connectors.

Connector

(M332-JKA2)

Connector

(Speaker)

(M332-JKA5)

Connector

(M332-PDA2)

Connector

(M332-JKA3)

Connector (Speaker)

Connector

(M332-JKA1)

7-2. Remove 5 wires. 7-3. Remove 10 screws and the M332-PSA1 PCB.

— 11 —

+ 29 hidden pages

casio AP-500 Service Manual

AP-500

CONTENTS

SPECIFICATIONS

BLOCK DIAGRAM

CIRCUIT DESCRIPTION

PRINTED CIRCUIT BOARDS

DISASSEMBLY