Casio Celviano AP-22S Manual de usuario

ELECTRONIC KEYBOARD

AP-22S

— 2 —

CONTENTS

Safety Notice...................................................................................... 2

Specifications .................................................................................... 4

Block Diagram ................................................................................... 5

PCB Layout ........................................................................................ 6

Disassembly Instructions ................................................................. 7

Circuit Description .......................................................................... 11

Major Waveforms............................................................................. 13

Printed Circuit Board ...................................................................... 14

Troubleshooting .............................................................................. 15

Wiring Diagram ................................................................................ 19

Exploded View ................................................................................. 20

Parts List .......................................................................................... 23

Schematic Diagrams ....................................................................... 25

SAFETY NOTICE

CAUTION!

Danger of explosion if battery is incorrectly replaced. Replace

only with the same or equivalent type.

— 3 —

DENMARK:

FINLAND:

SWEDEN:

VAROITUS

Paristo voiäjähtää, jos se on virheellisesti asennettu. Vaihda

paristo ainoastaan valmistajan suosittelemaan tyyppiin. Hävitä

käytetty paristo valmistajan ohjeiden mukaisesti.

VARNING

Felaktigt batteribyte kan medf fara för explosion. Använd där-

för endast samma typ eller likvärdig typ enligt apparat-

tillverkarens rekommendation.

Kassera förbrukade batterier enligt tillverkarens anvisning.

ADVARSE!

Lithiumbatteri. Eksplosionsfare ved fejlagtig handtering.

Udskiftning ma kun ske med batteri af samme fabrikat og type.

Lever det brugte batteri tilbage tili leverandoren.

— 4 —

SPECIFICATIONS

GENERAL

Keyboard: 88 piano keys (with touch response)

Polyphony: 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 (TrackA, 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 (q= 30 to 300)

• Touch Select: 3types

• Transpose: 1 octave (F#to C TO F)

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

• Temperament: 7 types

• Baroque pitch

MIDI: 16 multi-timbre receive

Input/Output: • Headphones: Standard stereo jacks ×2

• LINE OUT (R)(L): Standard stereo jacks ×2

Output impedance 22 KΩ

Output voltage: 2.0 V (RMS) MAX

• LINE IN (R)(L): Standard stereo jacks ×2

Input impedance: 30 KΩ

Input voltage 200 mV

• MIDI (OUT)(IN)

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

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

household current viaAC power cord supplied with piano.

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

Dimensions: • CELVIANO Only: 139 ×54 ×25 cm (5.5 ×2.1 ×1.0 inch)

• CELVIANO and Stand: 139 ×54 ×88 cm (5.5 ×2.1 ×3.5 inch)

Weight: • CELVIANO Only: approximately 48.5 kg (106.9 lbs)

• CELVIANO and Stand: approximately 60.2 kg (132.7 lbs)

Accessories: Stand with three pedals, score book, power cord

— 5 —

BLOCK DIAGRAM

SOLM, SOLP

BDK, WOK1, SORM, SORP

FI0 ~ 10

SI0 ~ 10

DSP

HG51B155FD

RAM

256K

TC55257DFL-

70L

ROM

MX23C8000MC-

12CA73

CPU

HD6435328RF35F

PEDAL

MIDI

IN OUT

ROM

24M

MX23C2410MC-

12CA58

RAM

256K ×2

TC55257DFL-

70L ×2

Keyboard

Controller

HG52E35P

Switch & LED

Controller

µPD65005GF-419

D/A Converter

µPD6376GS

D/A Converter

µPD6376GS

Filter

Mixer, Mute Circuit

Power Amp.

STK4132MK

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

RST

MUTE

BRILLIANCE

M-IN M-OUT

PB4 ~ 6

Filter

LINE IN

Tweeter Tweeter

HEADPHONE

SPSP

LINE OUT

P70 ~

P77

P12 ~

P14

NJM78M78M15FA

NJM78L05A

NJM7805FA

A0 ~ 14

A0 ~ 19

Voltage

selector

— 6 —

LIGHT

MIDDLE

HEAVY

HARPSICHORD

POWER

ONON

OFFOFF

VOLUME

BRILLIANCE

CONTROLCONTROL

CONTROLCONTROL MIDIMIDI

MAXMAX

TRANSPOSETRANSPOSE

TUNETUNE

MIDIMIDI

BRILLIANCEBRILLIANCE

METRONOME VOL

MELLOWMELLOW BRIGHTBRIGHT

PLAY/STOP

PLAY/STOP PART

PART

TRACK

RECORD

DEMO

SONG LESSON/MEMORY

ROOMROOM

STAGESTAGE

HALL 1HALL 1

HALL2HALL2

CHORUSCHORUS

TREMOLOTREMOLO

CHORUS/TREMOLOCHORUS/TREMOLO PIPE ORGAN

PIPE ORGAN STRINGS

STRINGS VIBRAHONE

VIBRAHONE CHOIR

CHOIR

TONE

W. BASS

LOWER TONE

E. BASS

E. BASS TOUCH SELECT

TOUCH SELECT

MALTI FUNCTION DISPLAYMALTI FUNCTION DISPLAY

VALUE

TEMPO/BEAT/

FIXED PHRASE REPEATPHRASE REPEAT NEXTMETRONOMEREVERB

PIANO 1PIANO 1 PIANO 2PIANO 2 E.PIANO

MIN

SONG

A B

PS11 PS2M MA1M

CN1M

CN2M

PS3M

PS4M

TP20-KY1M TP20-KY2M

PCB LAYOUT

PCB

Main PCB

Jack PCBs

Console PCBs

Power PCB

JCM434-

MA1M

PS2M

PS3M

PS4M

CN1M

CN2M

PS11

Components

CPU, DSP, Sound Source ROM Working storage

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

troller, Power amp, Power supply circuit

LINE IN/OUT jack, MIDI jacks

Phone jacks

Power indicator

Gate array (Button controller/LED driver), LEDs,

Buttons

Main Volume, Brilliance volume, LEDS, Buttons

Fuse, Noise filter

— 7 —

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.

— 8 —

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.

— 9 —

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

5. Disassembling keyboard unit

5-1. Remove 12 screws fixing front end of the keyboard unit and three screws supporting rear end of

the keyboard.

5-2. Remove 2 connectors CA and CB on PCB JCM434-MA1M.

5-3. Lift up the keyboard unit.

— 10 —

6. Disassembling keys

6-1. Pressing the hook with long-nose pliers, lift the key.

6-2. Using pliers, remove key spring.

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

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