Casio Celviano AP-40 Manual de usuario

DIGITAL PIANO

AP-40

AUG. 2000

Ver.1 Oct. / 2000

CONTENTS

Page

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

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

PCB Layout.............................................................................................................................................................3

Disassembly Instructions ........................................................................................................................................4

Circuit Description ...................................................................................................................................................8

Major Waveforms ..................................................................................................................................................10

Printed Circuit Board .............................................................................................................................................11

Troubleshooting ....................................................................................................................................................12

Wiring Diagram .....................................................................................................................................................16

Exploded View ......................................................................................................................................................17

Parts List ...............................................................................................................................................................19

Schematic Diagrams .............................................................................................................................................22

— 1 —

SPECIFICATIONS

GENERAL

Keyboard: 88 piano keys (with touch response)

Polyphonic: 32 notes, maximum

Tones: • 10 (including two bass tones)

• Tuning Curves: 3 (preset for each tone)

• Layer: Adjustable volume

• Split: Split point, adjustable volume

Digital Effects: Reverb (4 types), Chorus, Tremolo, Brilliance

Demo Tunes: • Number of Tunes: 8

• Playback: Repeat (all tunes, one tune)

Memory: • Operations: Real-time recording, playback

• Number of Tracks: 2 (Track A,Track B)

• Capacity: Approximately 5,000 notes (total of 2 tracks)

• Memory Backup: Built-in lithium battery (Battery Life:5 years)

Song Lesson: • Number of Tunes: 80

• Playback: All song repeat, specific song

• Part Off: L, R

• Phrase Repeat

Pedals: Damper, Soft, Sostenuto

Other Functions: • Metronome: Beat (6 types), Tempo ( = 30 to 300)

• Touch Select: 3 types

• Transpose: 1 octave (F# to C to F)

• Tuning: A4 = 440Hz ±13Hz (adjustable)

• Temperament: 7 types

• Baroque pitch

MIDI: 16 multi-timbre receive

Input/Output: • Headphones: Stereo standard jacks ×2

• LINE OUT (R)(L): Monaural standard jacks ×2

Output impedance: 22KΩ

Output voltage:2.0V (RMS) MAX

• LINE IN (R)(L): Monaural standard jacks ×2

Input impedance: 30KΩ

Input voltage: 200mV

• MIDI (OUT) (IN)

Speakers: Ø 16cm ×2, Ø 5cm ×2 (Output: 30W + 30W)

Power Supply: 120V (for U.S.A.), 120V, 220V, 230V and 240V (for other countries) AC household

current via AC power cord supplied with piano.

Power consumption: 70W (with 120V AC), 90W (with 220V, 230V and 240V AC)

Dimensions: • CELVIANO Only: 139.0 ×54.0 ×24.9 cm (54 3/4×21 1/4×9 13/16 inch)

• CELVIANO and Stand: 139.0 ×54.0 ×88.4 cm (54 3/4×21 1/4×34 13/16 inch)

Weight: • CELVIANO Only: approximately 48.5kg (107.1 lbs)

• CELVIANO and Stand: approximately 63.6kg (140.4 lbs)

— 2 —

BLOCK DIAGRAM

SOLM, SOLP

BDK, WOK1, SORM, SORP

FI0 ~ 10

SI0 ~ 10

DSP

HG51B155FD

LSI 7

RAM 256K

TC55257DFL-70L

ROM 8M

LSI2

LSI3

MSM538002E-

W1-GS-K

CPU

HD6435328RF35F

LSI1

PEDAL

MIDI

IN OUT

ROM 24M

MX23C2410MC-

12CA58

RAM 256K × 2

LSI8,9

LSI6

TC55257DFL-70L

× 2

Keyboard

Controller

HG52E35P

LSI10

Switch & LED

Controller

uPD65005GF-419

LSI301

D/A Converter

uPD6376GS

D/A Converter

uPD6376GS LSI 5LSI 4

Filter

Mixer, Mute Circuit

Power Amp.

STK4132MK

IC405

RA0 ~ 22

RD0 ~ 15

EA0 ~ 14

ED0 ~ 15

D0 ~ 7

L18 ~ 28

KI0 ~ 3

LA ~ LG, LP

LK8 ~ 14 LEDs

Buttons

Keyboard

KC0 ~ 7

Main

Volume

AVCC

AVDD

AVFF

VDD

+15V

+5V

–15V

+5V

Power Switch

Power

Transformer

T101

Reset IC

MB3771PF

IC5

RST

MUTE

BRILLIANCE

M-IN M-OUT

PB4 ~ 6

Filter

LINE IN

Tweeter Tweeter

HEADPHONE

SPSP

LINE OUT

P70 ~

P77

P12 ~

P14

NJM78M15FA

NJM78L05A

NJM7805FA

IC401,403,404

A0 ~ 14

A0 ~ 19

Voltage

selector

— 3 —

PCB LAYOUT

PCB JCM434- Components

Main PCB MA1M CPU, DSP, Sound Source ROM Working storage RAM,

Effect RAM Reset IC, DAC, Filter, Key con-troller, Power

amp, Power supply circuit

Jack PCBs PS2M LINE IN/OUT jack, MIDI jacks

PS3M Phone jacks

PS4M Power indicator

Console PCBs CN1M Gate array (Button controller/LED driver), LEDs, Buttons

CN2M Main Volume, Brilliance volume, LEDS, Buttons

Power PCB PS11 Fuse, Noise filter

LIGHT

MIDDLE

HEAVY

HARPSICHORD

POWER

OFF

VOLUME

BRILLIANCE

CONTROL

CONTROL MIDI

MAX

TRANSPOSE

TUNE

MIDI

BRILLIANCE

METRONOME VOL

MELLOW BRIGHT

PLAY/STOP PART

TRACK

RECORD

DEMO

SONG LESSON/MEMORY

ROOM

STAGE

HALL 1

HALL2

CHORUS

TREMOLO

CHORUS/TREMOLO PIPE ORGAN STRINGS VIBRAHONE CHOIR

TONE

W. BASS

LOWER TONE

E. BASS TOUCH SELECT

MALTI FUNCTION DISPLAY

VALUE

TEMPO/BEAT/

FIXED PHRASE REPEATPHRASE REPEAT NEXTMETRONOMEREVERB

PIANO 1 PIANO 2 E.PIANO

MIN

SONG

PS11 PS2M MA1M

CN1M

CN2M

PS3M

PS4M

KY3M

KY2MKY1M

— 4 —

DISASSEMBLY INSTRUCTIONS

1. Disassembling top board

1-1. Remove 8 screws on the rear.

1-2. Slide the top board towards the rear.

The top board will be free from catches on the case.

1-3. Lift the top board.

2. Disassembling keyboard cover

2-1. Slide the keyboard cover to open fully.

2-2. Passing the gear into the opening on each rack, lift the

keyboard cover.

— 5 —

3. Disassembling console panel

Note: To avoid scratch on the side board, put paper between the console panel and the side board at both

ends.

3-1. Remove three screws afixing the console panel.

3-2. Remove the screw fixing a grounding wire at the transformer.

3-3. Disconnect two connectors CF on PCB JCM434-PS2M and CD on PCB JCM434-MA1M

3-4. Slide the console panel towards the front to free from catches.

3-5. Turn round the console panel.

3-6. Remove the 2 screws fixing the power switch.

Insert paper here. Insert paper here.

— 6 —

5. Removal of keyboard unit

5-1. Disconnect connector CA on the PCB MA1M.

5-2.Remove 24 screws that affix the keyboard unit

(16 on the bottom of the case and 8 on the

keyboard unit).

5-3.Lift and remove the keyboard unit.

4. Disassembling front cover

4-1. Remove 9 screws at the front edge on the bottom.

4-2. Unscrew 2 screws and remove JCM434-PS4M

Front cover screws

Bottom

Keyboard screws

Connector (CA)

— 7 —

6. Removal of keys

6-1. While plying the side partition plastics with tweezers, push

the edge of the key toward front.

7. Disassembling keyboard PCBs

7-1. Turn round the keyboard unit to face the PCB up.

7-2. Disconnect the connector at the middle of keyboard.

7-3. Remove screws on the keyboard PCBs.

8. Replacing the main PCB

Note: The main PCB contains a lithium battery for memory back-up.Please remove the jumper before replacing

the PCB.And make sure that the jumper is reset on new main PCB after replacing the PCB.Because no

jumper is set on a spare part of the main PCB.

Lithium battery

Jumper

— 8 —

CIRCUIT DESCRIPTION

KEYMATRIX

KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7

FI0 A0 1 A0 # 1 B0 1 C1 1 C1 # 1 D1 1 D1 # 1 E1 1

SI0 A0 2 A0 # 2 B0 2 C1 2 C1 # 2 D1 2 D1 # 2 E1 2

EI1 F1 1 F1 # 1 G1 1 G1 # 1 A1 1 A1 # 1 B1 1 C2 1

SI1 F1 2 F1 # 2 G1 2 G1 # 2 A1 2 A1 # 2 B1 2 C2 2

FI2 C2 # 1D2 1 D2 # 1 E2 1 F2 1 F2 # 1 G2 1 G2 # 1

SI2 C2 # 2 D2 2 D2 # 2 E2 2 F2 2 F2 # 2 G2 2 G2 # 2

FI3 A2 1A2 # 1 B2 1 C3 1 C3 # 1 D3 1 D3 # 1 E3 1

SI3 A2 2A2 # 2 B2 2 C3 2 C3 # 2 D3 2 D3 # 2 E3 2

FI4 F3 1F3 # 1 G3 1 G3 # 1 A3 1 A3 # 1 B3 1 C4 1

SI4 F3 2F3 # 2 G3 2 G3 # 2 A3 2 A3 # 2 B3 2 C4 2

FI5 C4 # 1D4 1 D4 # 1 E4 1 F4 1 F4 # 1 G4 1 G4 # 1

SI5 C4 # 2D4 2 D4 # 2 E4 2 F4 2 F4 # 2 G4 2 G4 # 2

FI6 A4 1A4 # 1 B4 1 C5 1 C5 # 1 D5 1 D5 # 1 E5 1

SI6 A4 2A4 # 2 B4 2 C5 2 C5 # 2 D5 2 D5 # 2 E5 2

FI7 F5 1F5 # 1 G5 1 G5 # 1 A5 1 A5 # 1 B5 1 C6 1

SI7 F5 2F5 # 2 G5 2 G5 # 2 A5 2 A5 # 2 B5 2 C6 2

FI8 C6 # 1D6 1 D6 # 1 E6 1 F6 1 F6 # 1 G6 1 G6 # 1

SI8 C6 # 2D6 2 D6 # 2 E6 2 F6 2 F6 # 2 G6 2 G6 # 2

FI9 A6 1A6 # 1 B6 1 C7 1 C7 # 1 D7 1 D7 # 1 E7 1

SI9 A6 2A6 # 2 B6 2 C7 2 C7 # 2 D7 2 D7 # 2 E7 2

FI10 F7 1F7 # 1 G7 1 G7 # 1 A7 1 A7 # 1 B7 1 C8 1

SI10 F7 2F7 # 2 G7 2 G7 # 2 A7 2 A7 # 2 B7 2 C8 2

LSI

HG52E35P

Second contact First contact

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