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
8M
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
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
E
TRANSPOSETRANSPOSE
E
TUNETUNE
E
MIDIMIDI
E
BRILLIANCEBRILLIANCE
E
METRONOME VOL
MELLOWMELLOW BRIGHTBRIGHT
PLAY/STOP
PLAY/STOP PART
PART
TRACK
TRACK
L
LR
R
RECORD
RECORD
DEMO
DEMO
SONG LESSON/MEMORY
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
TONE
W. BASS
W. BASS
LOWER TONE
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
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.
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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