1/4USER’S GUIDE
EN
USER’S GUIDE
Please keep all information for fu ture reference.
These instruction s consist of four pa ges on two sheets. Ea ch page is identi fied by a page number i n the
upper right corner.
● Refer to “Assembling the Stand” on page 4/ 4 of these instructions for information abou t how
to assemble the stand and attach the music stand.
● Be sure to read the “Safety Precautions” in these instructions and use the Digital Piano
correctly.
*Caution!
Make sure that the keyboard cover is fully open when ever you are playing. A partially open cover can
suddenly close u nexpectedly and pinch your fing ers.
About These Instructions
Before performing an y operation, be sure to go to p age 3/4 first and read the
information under “Piano Buttons”, “Using the FUNCTION Button”, and
“Keyboard Keys Used for Configuring Settings”.
These instruction s provide general informat ion about Digi tal Piano operati ons. For
more deta iled inform ation, refe r to the “User’s Guide (Full)”, which can be
downloaded by visitin g the website below or by using the nearby QR code.
http://world. casio.com/manual/ emi/
The “User’s Guide (Full)” includes informati on on the topics listed below.
• Auto Resume and Operation Lock
• Connecting to an audio system and amplifier
• Connecting to a computer
• Details about sett ings using the FU NCTION button
• Operations using a USB flash drive (PX-870)
• MIDI Implementati on Chart, etc.
Your Digital Piano runs on standard hou sehold power. Be
sure to turn off power whenever you are not using the Digital
Piano.
■ Using an AC Adaptor
Use only the AC adaptor (JEITA Standard, with unified
polarity plug) that comes with this Digital Piano. Use of a
different type of AC adaptor can cause malf unction.
• Use the supplied power cord to connect the AC adaptor.
Bottom
• Never connect the AC adaptor that comes with this
Digital Piano to any other device besides this Digital
Piano. Do ing so creat es the risk o f malfuncti on.
• Make sure the Digital Piano is turned off before
plugging in or unpl ugging the AC adaptor.
• The AC adaptor will become warm to the touch after
very long use. This is normal and does not indicate
malfunc tion.
• Never try to use the supplied power cord with any
other device.
• Place the AC adaptor on t he floor with its label
surface pointed downwards. The AC adaptor
becomes more prone to electromagnetic wave
generation if the label surface is in a diffe rent
position.
■ To turn on power
Press the P (Power) but ton. Power up takes ab out five
seconds.
■ To turn off power
Hold down the P (Power) but ton until the power lamp goes
out.
Front
• Pressing the P (Power) button to turn off power
actually puts the Digital Piano into a standby state
(minute current continues to flow). If you do not plan
to use the Di gital Pian o for a long t ime or if the re is a
lightning storm in your area, unplug the AC adaptor
from the power outlet.
■ Auto Power Off
Power turns off auto matically after four hour s of non-use.
To disable Auto Power Off, turn on power by holding down
the FUNCTION button and pressing P (Power).
Use the VOLUME knob to adjust the volume of speaker and
headphone output.
The factory tuning (A4=44 0.0Hz) can be change in 0.1 Hz
steps.
1.
Hold down t he FUNCTION button and use the A-
tuning keys (+, –).
• Tuning is raised or lowered in 0.1 Hz step s.
• To toggle betwe en the two settings below, hold
down the FUNCTION button and press the A-tuning
keyboard keys (+ and –) at the sam e time.
440.0 Hz (1 beep)
442.0 Hz (2 beeps)
Power Outlet
Specified AC Adaptor:
PX-870: AD-E24250LW
PX-770: AD-A12150LW
Power Termina l
(PX-870: DC 24V )
Power Terminal
(PX-770: DC 12V)
Turning Power On or Off
Adjusting Volume
Changing the Tuning
Connect headphones to the PHONES/OUTPUT jack.
Connecting headphones mut es speaker output, so you can
practice even late at night. To prot ect your hearing, do not
set the volume too high when using headphones.
Front
NOTE
• If the plug of th e headphones does no t match the
PHONES/OUTPUT jack, use a commercially available
adaptor plug.
The Head Phone Mode reproduces natural sound ing
acoustic piano tones when using headphones.
1.
Hold down t he FUNCTION button and press the
Head Phone Mode key.
Each press toggles between on and off.
1.
Press the GRAND PIANO button or E.PIANO 1
button.
• Pressing the GRAND PIANO button selects t he
GRAND PIANO CONCERT tone.
Tone names are marked above the keys.
1.
Hold down the FU NCTION button and press the
desired tone key. (See the “Tone” a rea under
“Keyboard Keys Used for Configuring Settings”.)
• Some keys may have more than one tone assigned.
In this case, each press of the key cycles to the next
assigned tone. Which tone is selected by the key
press is indicate d by beeps.
Example: Cycling through MODERN, ROCK, and
JAZZ settings
MODERN: (1 beep)
ROCK: (2 beeps)
JAZZ: (3 beeps)
■ Bass Tone (BASS)
Pressing the BASS ( LOWER) key t o select a bass tone
selects a bass tone for the low end (left side) of the
keyboard only. The high end (right side) of the ke yboard
retains the tone assigned to it befo re the bass tone was
selected.
1.
Hold down the FU NCTION button and press the
Select Layer Tone key.
• Each press of the keyboard ke y toggles betwee n on
and off.
2.
Hold down the FU NCTION button and press key of
the tone to be layered.
3.
To return to the original tone, hold down the
FUNCTION button and press the Select Layer Tone
key (which exits the Layer Mode).
Connecting Headphones
Head Phone Mode (PX-870)
Selecting a Tone with a Button
Selecting a Tone with a Keyboard
Key
Layering Two Tones
Split point
Bass range High range
BASS JAZZ ORGAN
(previously selected tone)
GRAND PIANO BRI GHT
STRINGS 2
You can split the keyboard in the cen ter so the left an d right
sides have the same range. The left outer pedal is the left
side damper pedal, while the right outer pedal is the right
side damper pedal.
Keyboard
Pedals
NOTE
• Only the damper pedal for the right keyboard supports
half-pedal operatio ns.
1.
Select a tone.
2.
To cycle between the Duet Mode settings below,
hold down the FUNC TION button and press the
Duet Mode key.
Off
On
Pan: Outputs left side keyboard tone from the left
speaker and right side keyboard tone from the right
speaker.
You can change the ranges of the left and right ke yboards in
octave units from their initial default settings.
1.
Pressing the FUNCTIO N button and the GRAND
PIANO button, press the C-key you want as middle
C (C4) of the left keyboard. Keep the FUNCTION
button and the GRAND PIANO button depressed as
you advance to step 2.
Example: Pressing th e leftmost C key configures the
keyboards below.
2.
With the FUNCTION button and the GRAND PIAN O
button still depressed, press the C-key you want as
middle C (C4) of the right keyboard.
This sounds the n ote assigned to C4 and change the
octave of the right keyb oard.
• You can return the keyboards to the ir initial default
ranges by exiting and then re- entering the Duet Mode.
Splitting the Keyboard for Duet
Play
Split point
Left keyboard Right keyboard
(Middle C) (Middle C)
Left keyboard
damper peda l
Left and rig ht damper p edal
Right keyboard
damper pedal
Changing the Octaves of the Keyboards
Left keyboard Right keyboard
(Pressed key)
1 octave higher than initi al setting Unchanged
The tones of your Digital Piano have built-i n elements that
give them the char acteristic reverberation and other
characteristics of an acoustic p iano. Each of these elements
can be individually adjusted to one of four leve ls.
■ Hammer Response
Controls the time lag between when a ke y is pressed and
when the note actually sounds.
Settings
1: Quick
2: Grand piano style
3: Slightly slow
4: Slow
■ String Resona nce
Adjusts the characteri stic reverberation (stri ng resonance) of
an acoustic piano.
You can select a reverberati on setting that matche s the
song being played or your own pe rsonal preference.
Settings
1: Subdued
2: Slightly subdued
3: Resonant
4: Very resonant
■ Lid Simulator
Adjusts how sound resonates in accordance with the
opening state of a grand piano lid.
Settings
1: Lid clos ed
2: Lid partially open
3: Lid full y open
4: Lid removed
1.
Hold down the FUNCTION button and press the
desired element key.
This Digital Piano comes with a Music Library of 60 piano
songs (numbered 1 to 60), and Concert Play selecti on of
piano and orchestra performa nce songs (numbered 1 to 10)
built in.
1.
Hold down t he FUNCTION button and press the
METRONOME button.
This starts sequentially looped playback of all Concert
Play (Listen) songs and Music Library songs.
• To advance to th e next demo song, hold down the
FUNCTION button and press the MIDI REC
button.
• To return to the previous demo song, hold down the
FUNCTION button and press the AUDIO REC
button (REVERB button for PX -770).
• To stop demo playback, press the a button.
NOTE
• Pressing th e METRON OME button while holding down
the FUNCTION button during Concert Play jumps to the
first Music Library song. Performing the same oper ation
during Music Library p lay jumps to the first Concert Play
song.
• The only operat ions possible during demo play back are
changing the currently playin g tune and stopping
playback.
1.
To select a song, hold down the FUNC TION button
and use the Select Music Library Song keys (–, +).
You can also input a value from 0 to 9 to specify a
Music Library song number.
2.
To start playback press the a button.
• To stop playback, press the a button.
Adjusting Acoustic Piano Sound
Characteristics (PX-870)
Playing Back Built-in Songs
Demo Songs
Music Library
1.
To select a song, hold down the FUNCTION button
and use the CONCERT PLAY area SELECT keys
(–, +).
2.
To start song playback, hold down the FUNCTION
button and press the CONCERT PLAY area a
key.
• To stop song playback, hold down the FUNC TION
button and p ress the CONCERT PLAY area a
key.
NOTE
• Concert Play uses recordings of a live orchestra, so the
tones used for recording are differ ent from those that can
be selected with the Digita l Piano. Also note that br eath
and performance noises may be audible in Concert Pla y
songs.
Use the steps below to turn off t he left-hand p art or right-
hand part of a song and pl ay along.
1.
To select a song to practice, hold down the
FUNCTION button and use the Sel ect Music Library
Song keys (–, +, keys 0 to 9).
2.
To select on or off for each part, hold down the
FUNCTION button and press the a button.
Play the part you turned off.
• Each press of th e a button cycles the on/off
settings as shown above.
3.
To start playback, press the a button.
• To stop playback, press t he a button.
You can use Conc ert Play for 3-step practice.
■ Step 1: LISTEN
Listen to playback of the piano and orchestra to familiarize
yourself with the music.
1.
To select a song, hold down the FUNCTIO N butto n
and use the CONCERT PLAY area SELECT keys
(–, +).
2.
Hold down t he FUNCTION button and press the
CONCERT PLAY area LISTEN key.
3.
To start song playback, hold down the FUNC TION
button and press the CONCERT PLAY area a
key.
• To stop song playback, hold down the FUNCTION
button and press the CONCERT PLAY area a
key.
■ Step 2: LESSON
You can turn of f the left-han d part or r ight-hand part of a
built-in song and pla y along on the Digital Piano. Pr actice
the piano part of the ensemble.
1.
Hold down t he FUNCTION button and press the
CONCERT PLAY area LESSON key.
2.
To select on or off for each part, h old down the
FUNCTION button and press the a button.
See the illustration under step 2 of th e “Music Library”
part selection procedure.
3.
To start song playback, hold down the FUNC TION
button and press the CONCERT PLAY area a
key.
• To stop song playback, hold down the FUNCTION
button and press the CONCERT PLAY area a
key.
■ Step 3: PLAY
Play along with the orchestra.
1.
Hold down t he FUNCTION button and press the
CONCERT PLAY area PLAY key.
2.
To start song playback, hold down the FUNC TION
button and press the CONCERT PLAY area a
key.
• To stop song playback, hold down the FUNCTION
button and press the CONCERT PLAY area a
key.
Concert Play
Practicing with Built-in Tunes
Music Library
Both part s on
Right-hand part
off
Left-hand part off
Left-hand par t
(lit)
Right-ha nd part
(lit)
Right-han d part
(unlit)
Left-hand pa rt
(unlit)
Concert Play
■ Damper Pedal
Pressing the damper pedal while playing ca uses the notes
you play to reverberate. Half-pe dal operation (pressing the
pedal part way) is also supported.
■ Sostenuto pedal
Only the notes of the ke ys that are depressed when this
pedal is pressed are sustained, even if t he keyboard keys
are released, until the pedal is released.
■ Soft pedal
This pedal makes notes softer and gentler. The effect is
applied only to notes played while the peda l is depressed.
NOTE
• If pressing the pedal does not pr oduce the desired effect,
it could mean that the pedal cord is not connected
properly. Fully push the plug in as far as it goes.
■ To sound the metronom e
1.
Press the METRONOME button.
The first beat of a measure is a chime, and remaining
beats are clicks. The lamp flashes with each beat.
Press the METRONOME button again to turn of f the
metronome.
■ To set the beat
1.
Hold down the FU NCTION button and press the
METRON OME area BEAT key .
• Keep the FUNCTION button depressed as you
advance to the next step.
2.
Still holding down the FUNCTION b utton, use the
number keys (0 to 9) to specify the beat.
Setting range: 0 to 9
• Specifying 0 so unds a straight click, without any chime.
■ To set the tempo
1.
Hold down the FU NCTION button and press the
METRON OME area TEMPO k ey.
• Keep the FUNCTION button depressed as you
advance to the next step.
2.
Still holding down the FUNCTION b utton, use the
number keys (0 to 9) to specify the tempo.
Setting range: 20 to 255
• Each press of the + or – key raises or lowers the tempo
by 1.
■ To adjust the metronome volume
Hold down the FUNCTION button and use the Metronome
Volume keys (– , +) to set a vo lume level from 0 to 42.
Setting range: 0 to 42
• To return to the initial def ault volume, press the
Metronome Volume + key and – key at the same time
Using a Pedal
Soft pedal
Sostenut o pedal
Damper pedal
Using the Metronome
Metronome Settings
Touch Response alters tone volume in accordance with
keyboard pressure (speed).
1.
Hold down the FUNCTION button and press the
Keyboard Touch key.
• You can select from amon g three levels, or off. Each
press of the keyboard key causes it to beep th e
number of times shown b elow to indicate the cu rrent
setting.
Once (long): Off
Once (short) : 1
Twice: 2
Three times: 3
• Setting a smaller value causes lighter touch to
produce more powerful sound .
• Selecting off causes notes t o be played at a fixe d
volume, regardless of the key press ve locity.
You can use the built in MIDI recorder to recor d your
performance and pl ay it back when you wan t.
■ Recording Capacity
• You can record approximat ely 5,000 notes in Digital
Piano memory.
■ Recorded Data
• Keyboard play
• Tone used for keyboard play
• Beat (Track 1 only)
• Tempo setting (Track 1 only)
• Layer setting (Tra ck 1 only)
• Duet (Track 1 only)
• Temperament (Track 1 only)
• Keyboard volume (Track 1 only)
• Chorus (Track 1 only)
• Brilliance (Track 1 only)
• PX-870: Hall Simulat or setting (Track 1 only)
• PX-770: Reverb setting (Track 1 only)
• PX-870: Acoust ic Simulator (Track 1 only)
• PX-770: Damp er Noise On/O ff (Track 1 only)
■ Recording Data Storage
• Starting a new recording deletes any data that was
previously recorded in memory.
• Should power fail durin g recording, all of the data in the
track you are recording will be deleted.
• CASIO COMPUTER CO., LTD. takes no responsibility
for any damages, lost profits, or claims by third
parties arising from the loss of deleted recorded data
due to malfunction, repair, or for any other reason.
■ Tracks
A “track” is a lo cation where your performance is re corded.
This Digital Piano has two tracks, and th e status of each is
indicated by the L/R lamps of the a button.
• You can record each track se parately and then combine
them so they p lay back to gether as a single song.
■ To record keyboard play
1.
Press the MIDI REC button once or twice so the
MIDI REC lamp is flashing.
This enters record standby.
2.
Hold down th e FUNCTION button and press the
a button once or twice until the lam p of the track
to be recorded is flashing.
3.
To start recording, pres s the a button or start
playing.
Recording can also be started by pressing a pedal or
performing anoth er operation.
• If, while recording is in progress, you want to re -
record from the beginning, hold down the MIDI
REC button unti l the Digital Piano beeps. This
discards the current recording data and enters
recording standby.
• To stop recording, press the a button or MIDI
REC button.
Changing Keyboard Response to
Touch Pressure (Touch
Response)
Using the MIDI Recorder
Lamp Status
Unlit Off
Lit Playback standby or pl ayback in
progres s
Flashing Recording standby or recording in
progres s
Song name
Track 1 Record
While play ing
back...
Track 2 Record
Continued on the back
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