Casio PX850 PX850_e User Manual To The 1e898c0f 33b2 4d6a B039 Bcfa88b20b98
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PX850-ES-1B
ES
USER’S GUIDE
GUÍA DEL USUARIO
Please keep all information for future reference.
Guarde toda información para tener como referencia futura.
Safety Precautions 
Before trying to use the Digital Piano, be sure to 
read the separate “Safety Precautions”.
Precauciones de seguridad
Antes de intentar usar el piano, asegúrese de 
leer las “Precauciones de seguridad” separadas.
EnglishEspañol
PX-850

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Important!
Please note the following important information before using this product.
• Before using the AD-E24250LW Adaptor to power the unit, be sure to check the AC Adaptor for any damage first. Carefully check the power 
cord for breakage, cuts, exposed wire and other serious damage. Never let children use an AC adaptor that is seriously damaged.
• The product is not intended for children under 3 years.
• Use only CASIO AD-E24250LW adaptor.
• The AC adaptor is not a toy.
• Be sure to disconnect the AC adaptor before cleaning the product.
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. 
A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the 
provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit 
from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the 
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury 
from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as 
power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been 
exposed to rain or moisture, does not operate normally, or has been dropped.
The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the 
apparatus.
The power indicator being unlit does not mean the apparatus is completely disconnected from the MAINS.
When you need to have the apparatus completely disconnected from the MAINS, you must unplug the power cord. For that purpose, locate 
the apparatus in a way that secures easy access to the power cord.
NOTICE
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. 
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment 
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause 
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If 
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and 
on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the 
equipment.
Declaration of Conformity
Model Number: PX-850
Trade Name: CASIO COMPUTER CO., LTD.
Responsible party: CASIO AMERICA, INC.
Address: 570 MT. PLEASANT AVENUE, DOVER, NEW JERSEY 07801
Telephone number: 973-361-5400
This device complies with Part 15 of the FCC Rules, Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that 
may cause undesired operation.
Manufacturer:
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
Responsible within the European Union:
CASIO EUROPE GmbH
Casio-Platz 1, 22848 Norderstedt, Germany
This mark applies in EU countries only.
Declaration of Conformity According to EU Directive

E-1
English
Contents
General Guide ................................... E-2
FUNCTION Button............................................................ E-3
Saving Settings and Using Operation Lock......................E-3
Power Outlet...................................... E-4
Turning Power On or Off ..................................................E-4
Playing with Different Tones ........... E-5
Selecting and Playing a Tone........................................... E-5
Adjusting Acoustic Piano Sound Characteristics..............E-7
Layering Two Tones .........................................................E-7
Using Effects .................................................................... E-8
Using the Digital Piano’s Pedals.......................................E-9
Using the Metronome .......................................................E-9
Playing a Piano Duet ......................................................E-10
Playing Back a Song ...................... E-12
Playing Back All of the Built-in Songs............................. E-12
Playing Back a Specific Music Library Song .................. E-13
Practicing with a Music Library Song.............................. E-13
Playing Back Audio Data Stored on 
a USB Flash Drive .......................................................... E-14
Recording and Playback ................ E-15
Recording to Built-in Song Memory (Song Recorder) ....E-15
Using the SONG RECORDER Button............................E-16
Recording to a USB Flash Drive (Audio Recorder) ........E-18
Configuring Settings with the 
Keyboard ......................................... E-21
To configure settings with the keyboard .........................E-21
Keyboard Keys Used for Configuring Settings ............... E-22
Parameter List ................................................................ E-23
Tone selection.............................................................E-23
Reverb ........................................................................ E-23
Chorus ........................................................................E-23
Brilliance .....................................................................E-23
Layer balance .............................................................E-23
Tempo (TEMPO)......................................................... E-23
Song select (SONG SELECT) .................................... E-23
Song volume ............................................................... E-23
Metronome beat (METRONOME BEAT) ....................E-23
Metronome volume ..................................................... E-23
Keyboard key (Transpose)..........................................E-24
Keyboard tuning (Tuning) ...........................................E-24
Octave shift................................................................. E-24
Temperament..............................................................E-24
Temperament select ................................................... E-24
Temperament Base note ............................................ E-24
Touch response (TOUCH RESPONSE).....................E-24
USB device mode .......................................................E-24
Send channel..............................................................E-24
Local control................................................................ E-24
Operation tone ............................................................ E-25
Back up ....................................................................... E-25
Operation lock .............................................................E-25
USB flash drive mode .................................................E-25
Format.........................................................................E-25
Save ............................................................................E-25
Load ............................................................................E-25
Delete..........................................................................E-25
USB Flash Drive .............................. E-26
Storing Standard Audio Data (WAV Files) to 
a USB Flash Drive ..........................................................E-26
Connecting a USB Flash Drive to and 
Detaching It from the Digital Piano .................................E-27
Formatting a USB Flash Drive ........................................E-28
Saving a Recorded Song to a USB Flash Drive .............E-29
Loading Song Data from a USB Flash Drive into 
Digital Piano Memory......................................................E-30
Deleting Data from a USB Flash Drive ...........................E-31
Simple Play Back of a Song on a USB Flash Drive........E-32
Error Indicators ...............................................................E-33
Connecting to a Computer............. E-35
Minimum Computer System Requirements ....................E-35
Connecting the Digital Piano to Your Computer .............E-35
Using MIDI ......................................................................E-36
Transferring Song Data with a Computer .......................E-36
Reference......................................... E-47
Troubleshooting ..............................................................E-47
Product Specifications ....................................................E-48
Operating Precautions ....................................................E-49
Appendix............................................ A-1
Tone List...........................................................................A-1
Song List...........................................................................A-1
MIDI Implementation Chart
Getting Ready ........................................................................................................E-39
Assembling the Stand .................................................. E-39
To connect the cable.................................................... E-43
To install the music stand...............................................E-43
Opening and Closing the Piano Lid
............................... E-44
Power Outlet ................................................................ E-45
Connecting Headphones ............................................. E-45
Connecting Audio Equipment or an Amplifier .............. E-46
Bundled and Optional Accessories.............................. E-46
Company and product names used in this manual may 
be registered trademarks of others.

E-2
General Guide
21 3 4 5 6 8 97
bk
bq
bp
bl bm
bn
bo
Front
Bottom
Rear

General Guide
E-3
English
*CAUTION
•Make sure that the cover is fully open whenever you are playing on the keyboard. A partially open cover can 
suddenly close unexpectedly and pinch your fingers.
NOTE
•The names shown here are always indicated in bold when they appear within the text of this manual.
The FUNCTION button is used when configuring a variety of different Digital Piano settings. The following are 
FUNCTION button basics.
zTo change a setting, hold down the FUNCTION button as you 
press the keyboard key that is assigned the setting you want to 
select.
Example: “To select a tone” on page E-5
NOTE
•For details about operations and settings, see “Configuring 
Settings with the Keyboard” on page E-21.
Your Digital Piano lets you save its current settings and lock its buttons to protect against operation errors. For 
details, see “Parameter List” on pages E-23 - E-25.
FUNCTION Button
Saving Settings and Using Operation Lock
1P (POWER) button
2VOLUME controller
3AUDIO RECORDER, FUNCTION button
4SONG a button
5SONG RECORDER (L/R) button
6METRONOME, DUET button
7GRAND PIANO (CONCERT), 
HAMMER RESPONSE button
8GRAND PIANO (MODERN), 
STRING RESONANCE button
9ELEC PIANO, LID SIMULATOR button
bk Pedal connector
bl USB flash drive port
bm USB port
bn DC 24V terminal
bo LINE OUT R, L/MONO jacks
bp PHONES jacks
bq Power lamp

E-4
Power Outlet
After you finish assembling the stand, turn on the 
Digital Piano. For details, see “Getting Ready” on page 
E-39.
1.
Press the P (POWER) button to turn on 
Digital Piano power.
•This causes the P (POWER) button to light.
•When you turn on the Digital Piano, it performs a 
power up operation in order to initialize its system. 
During system initialization the tone button lamps 
cycle on and off in the sequence for about five 
seconds to let you know that system initialization is 
in progress.
2.
To turn off the Digital Piano, hold down the 
P (POWER) button until its light goes out.
NOTE
•Pressing the P (POWER) button to turn off power 
actually puts the Digital Piano into a standby state. 
Minute amounts of current continue to flow within 
the Digital Piano in the standby state. If you do not 
plan to use the Digital Piano for a long time or if 
there is a lightning storm in your area, be sure to 
unplug the AC adaptor from the power outlet.
Auto Power Off
This Digital Piano is designed to turn off automatically 
to avoid wasting power after no operation is 
performed for a preset amount of time. The Auto 
Power Off trigger time is about four hours.
•You also can use the procedure below to temporarily 
suspend Auto Power Off.
■To disable Auto Power Off
1.
While the Digital Piano is turned on, press the 
P (POWER) button to turn it off.
2.
While holding down the FUNCTION button, 
press the P (POWER) button to turn on the 
Digital Piano.
•Auto Power Off will be disabled at this time.
NOTE
•Turning off the Digital Piano after performing the 
above steps will re-enable Auto Power Off.
Turning Power On or Off
12

E-5
English
Playing with Different Tones
The Digital Piano comes with 18 built-in tones.
•The names of the tones are marked above the keyboard keys to which they are assigned.
To select a tone
1.
Select the tone you want.
Selecting and Playing a Tone
SONG a
FUNCTION METRONOME ELEC PIANO
GRAND PIANO
VOLUME
zTo select GRAND PIANO (CONCERT or 
MODERN) or ELEC PIANO
•Press one of the GRAND PIANO buttons 
(CONCERT or MODERN) or the ELEC PIANO 
button to select the one you want.
•The button lamp of the selected tone will light.
zTo select one of the other tones
•While holding down the FUNCTION button, 
press the keyboard key that corresponds to the 
tone you want to select.

E-6
Playing with Different Tones
2.
Use the VOLUME controller to adjust the 
volume.
NOTE
•Of the Digital Piano’s 18 built-in tones, the first five 
are grand piano tone. Each tone has its own 
distinctive merits, so you should select the tone that 
suits the song you are playing along with or your 
own personal preferences. The CONCERT and 
MODERN tones are assigned to buttons for quick 
and easy selection.
*Feature that applies computer morphing 
technology to enable seamless changes between 
sounds sampled at various dynamics from a full 
concert grand piano.
Bass Tones (BASS 1, BASS 2)
Selecting either of the two BASS (LOWER) tones (1 or 
2) in step 1 of the above procedure will assign the 
selected bass tone to the low range (left side) of the 
keyboard. The high range (right side) will be assigned 
the tone that was selected when you pressed the 
BASS 1 or BASS 2 key.
•BASS 1 and BASS 2 let you effectively split the 
keyboard between two different tones.
NOTE
•To return the keyboard to a single tone, select any 
tone other than BASS 1 or BASS 2.
•You cannot select BASS 1 or BASS 2 when recording 
to Track 2.
Tone Name Characteristics
CONCERT This is a full concert grand piano tone 
that uses Linear Morphing* for 
dynamic and natural tone changes. 
This tone is designed to reproduce 
damper, resonance, and other piano 
nuances, which makes it ideal for 
virtually any type of piano 
performance.
MODERN This tone provides a bright grand piano 
sound. The volume and timbre of this 
tone is quick to respond to different 
keyboard pressures, and it has 
relatively strong reverb. This tone is a 
good choice for dynamic and lively 
performances.
CLASSIC This is a natural piano tone that closely 
resembles the sound of an acoustic 
piano. Though reverb and other flashy 
effects are subdued for this tone, 
resonance is more pronounced, which 
enables expression of delicate nuances. 
This tone is a good choice for lesson 
and practice sessions.
MELLOW Warm and mellow piano tone
BRIGHT Bright and clear piano tone
Split Point
Low Range High Range
BASS 2 PIPE ORGAN
(Currently selected tone.)

English
Playing with Different Tones
E-7
The tones of your Digital Piano have built-in elements 
that give them the characteristic reverberation of an 
acoustic piano. Each of these elements can be 
individually adjusted to one of four levels.
zHAMMER RESPONSE
zSTRING RESONANCE
zLID SIMULATOR
NOTE
•Opening or closing the Digital Piano’s lid does not 
affect the LID SIMULATOR setting.
1.
While holding down the FUNCTION button, 
press the button that corresponds to the 
element whose setting you want to change.
•Each press of the button cycles to the next option for 
that setting. The Digital Piano emits a beep pattern 
that indicates the currently selected option: 
One beep: Option 1 3 Two beeps: Option 2 3 
Three beeps: Option 3 3 Four beeps: Option 4 3 
One beep: Option 1, etc.
•The lamp of each button lights whenever the 
standard setting of its element is selected.
NOTE
•In addition to the above, piano tones also have a 
KEY OFF SIMULATOR.
zKEY OFF SIMULATOR
Use the following procedure to layer two tones, so they 
sound at the same time.
When specifying two tones for layering, first tone you 
select will be the main tone, while the second tone will 
be the layered tone.
1.
While holding down the FUNCTION button, 
press down the keyboard key for the first tone 
you want to layer and then the key for the 
second tone.
Example:
First press the 
HARPSICHORD
 key and then 
the STRINGS 1 key.
2.
To unlayer the keyboard, select another tone 
by pressing the GRAND PIANO button or by 
using the procedure under “Selecting and 
Playing a Tone” (page E-5).
NOTE
•You cannot layer the BASS 1 or BASS 2 tone with 
another tone.
•You cannot perform the layer operation when 
recording to Track 2.
Adjusting Acoustic Piano 
Sound Characteristics
Controls the time deviation between when a key is
pressed and when the note actually sounds.
Settings
1: Fast  2: Grand piano feel  3: Slightly slower  4: Slow
Adjusts the characteristic reverberation (string 
resonance) of an acoustic piano.
You can select a reverberation setting that matches 
the song being played or your own personal 
preference.
Settings
1: Suppressed  2: Slightly suppressed  
3: Reverberation  4: Strong reverberation
Adjusts how sound resonates in accordance with the 
opening state of a grand piano lid.
Settings
1: Lid closed  2: Lid opened slightly  3: Lid fully open  
4: Lid removed
Causes notes to decay when keyboard keys are 
released.
Layering Two Tones
HARPSICHORD
STRINGS 1
B

E-8
Playing with Different Tones
To adjust the volume balance between 
two layered tones
1.
While holding down the FUNCTION button, 
use the keyboard keys shown below to adjust 
the volume of the layered tones.
•To return the volume setting to its initial default, hold 
down the FUNCTION button and press both of the 
keys at the same time.
1.
While holding down the FUNCTION button, 
use the Reverb or Chorus keyboard key to 
cycle through the available settings.
•Each press of the Reverb or Chorus keyboard key 
causes the Digital Piano to beep according to which 
setting is selected, as shown in the table below.
•Reverb
•Chorus
■About DSP
DSP makes it possible to digitally produce complex 
acoustic effects. The DSP is assigned to each tone 
whenever you turn on Digital Piano power.
C1 C2 C3 C4 C5 C6 C7 C8
Initial default (Center)
Volume of the main tone
(First tone you selected)
Volume of the layered tone
(Second tone you selected)
Using Effects
Reverb : Makes your notes resonate.
Chorus: Adds more breadth to your notes.
Number of Beeps Setting
1 (long)
1 (short)
2
3
4
Off (OFF)
Room
Small Hall
Large Hall
Stadium
Number of Beeps Setting
1 (long)
1 (short)
2
3
4
Off (OFF)
Light Chorus
Medium Chorus
Deep Chorus
Flanger (whooshing effect)
ChorusReverb

English
Playing with Different Tones
E-9
Your Digital Piano comes equipped with three pedals: 
damper, soft, and sostenuto
Pedal Functions
zDamper Pedal
Pressing the damper pedal while playing will cause the 
notes you play to reverberate for a long time.
•When a GRAND PIANO tone (CONCERT, 
MODERN, CLASSIC, MELLOW, BRIGHT) is 
selected as the tone, pressing this pedal will cause 
notes to reverberate (with damper resonance) just 
like the damper pedal on an acoustic grand piano. 
Half-pedal operation (pressing the pedal part way) 
is also supported.
zSoft Pedal
Pressing this pedal while playing suppresses notes 
played on the keyboard after the pedal was pressed, 
and makes them sound softer.
zSostenuto Pedal
Only the notes of the keys that are depressed when this 
pedal is pressed are sustained until the pedal is 
released.
1.
Press the METRONOME button.
•This starts the metronome.
•The lamp above the SONG a button flash in time 
with the metronome beat.
2.
To change the beat, hold down the 
FUNCTION button as you press one of the 
METRONOME BEAT keys to select a beat 
setting.
•You can specify beats per measure value of 0, 2, 3, 4, 
5, or 6. Specifying 0 as the setting plays a straight 
click, without any chime. This setting lets you 
practice with a steady beat.
3.
While holding down the FUNCTION button, 
use the TEMPO keys to specify a tempo 
value in the range of 20 to 255 beats per 
minute.
•Each press of the + or – key raises or lowers the 
tempo value by 1.
•You can use the value input keys (0 to 9) to enter a 
specific three-digit. Be sure to input all three digits.
Example: To enter “96”, press keys 0, 9, 6.
Using the Digital Piano’s 
Pedals
Soft pedal Damper pedal
Sostenuto pedal
Using the Metronome

E-10
Playing with Different Tones
4.
Press the METRONOME button or SONG 
a button to turn off the metronome.
NOTE
•To return the tempo setting to the default tempo of 
the currently selected Music Library tune, press the 
+ and – keys at the same time in step 3. Pressing + 
and – while recording will return the tempo value to 
120.
To adjust the metronome volume
You can perform the following procedure at any time, 
regardless of whether or not the metronome is 
sounding.
1.
While holding down the FUNCTION button, 
use the METRONOME VOLUME keys to 
specify a volume value in the range of 0 to 42.
•For details about using the keyboard keys for 
settings, see “Keyboard Keys Used for Configuring 
Settings” on page E-22.
•Each press of the T orS key raises or lowers the 
metronome volume value by 1.
NOTE
•To return to the initial default setting, press T and 
S at the same time.
You can use the Duet Mode to split the Digital Piano’s 
keyboard in the center so two people can play a duet. 
The left and right side keyboards have virtually the 
same range. The left pedal operates as the left side 
damper pedal, while the right pedal is the right side 
damper pedal.
The Duet Mode is the perfect way to conduct lessons, 
with the teacher playing on the left side as the student 
playing the same song on the right side.
NOTE
•Only the damper pedal for the right side keyboard 
supports half-pedal operations.
1.
Select the piano tone you want to use for the 
duet.
Example: GRAND PIANO (MODERN)
2.
While holding down the FUNCTION button, 
press the METRONOME button to toggle 
duet on (lamp lit) and off (lamp unlit).
IMPORTANT!
• You cannot use the Duet Mode while recording 
(page E-15).
Playing a Piano Duet
C3 C4 C5 C6 C3 C4 C5 C6
Keyboard
Split point
Left keyboard Right keyboard
(middle C)(middle C)
Pedals
Left side damper pedal
Left and right side damper pedal
Right side damper pedal

English
Playing with Different Tones
E-11
Changing the Octaves of the duet 
keyboards
You can change the ranges of the left and right 
keyboards in octave units from their initial default 
settings. This comes in handy, for example, if the initial 
default range is not enough when one person is 
playing the left hand part and another person is 
playing the right hand part.
1.
While holding down the FUNCTION and 
METRONOME buttons, press the keyboard 
C key that you want located at C4 (middle C) 
of the left keyboard.
•This will sound the note assigned to C4 and change 
the octave of the left keyboard.
Example: Press the keyboard key of the leftmost C (C4) 
will assign the range shown below.
2.
While holding down the FUNCTION and 
METRONOME buttons, press the keyboard 
C key that you want located at C4 (middle C) 
of the right keyboard.
•This will sound the note assigned to C4 and change 
the octave of the right keyboard.
NOTE
•You can return the keyboards to their initial default 
ranges by exiting and then re-entering the Duet 
Mode.
C4 C5 C6 C7 C3 C4 C5 C6
Left keyboard Right keyboard
(Pressed key)
1 octave higher than initial 
setting
Unchanged

E-12
Playing Back a Song
Your Digital Piano comes with a Music Library of 60 
built-in tunes. You can play all 60 tunes in sequence, 
from beginning to end.
1.
While holding down the FUNCTION button, 
press the SONG a button.
•This will start repeat demo playback of the built-in 
songs in sequence, from 01 through 60.
•You can play along with a song on the keyboard as it 
is playing. The tone assigned to the keyboard is the 
one that is preset for the song that is playing.
2.
To change demo playback to a different song, 
hold down the FUNCTION button as you use 
the SONG SELECT keys to specify a song 
number.
•Each press of the + or – key raises or lowers the song 
number by 1.
•You can use the value input keys (0 to 9) to enter a 
specific two-digit song number. Be sure to input both 
digits.
Example: To select song 08, enter 0 and then 8.
3.
Press the SONG a button again to stop 
built-in song play.
NOTE
•The tune selection and playback stop operations 
described above are the only operations that are 
possible during demo tune play.
SONG a
AUDIO RECORDER, FUNCTION SONG RECORDER
Playing Back All of the Built-in 
Songs

English
Playing Back a Song
E-13
The Music Library includes both built-in songs (01 to 
60), plus songs (61 to 70) that have been saved to 
Digital Piano memory from a computer*. You can use 
the procedure below to select one of these songs and 
play it back.
*You can download music data from the Internet and 
then transfer it from your computer to Digital Piano 
memory. See “Transferring Song Data with a 
Computer” on page E-36 for more information.
1.
Find the song number of the song you want to 
play in the song list on page A-1.
2.
To specify a song, hold down the FUNCTION 
button as you use the SONG SELECT 
keyboard keys to specify a song number.
•For information about how to perform this step, see 
the note under step 2 of the procedure under 
“Playing Back All of the Built-in Songs” on page E-12.
3.
Press the SONG a button.
•This starts the playback of the song.
4.
To stop playback, press the SONG a 
button again.
•Playback will stop automatically when the end of the 
song is reached.
NOTE
•Pressing the + and – keyboard keys at the same time 
will select song number 01.
•You also can adjust the playback tempo and volume 
of the song. See “Configuring Settings with the 
Keyboard” on page E-21 for more information.
You can turn off the left hand part or right hand part of 
a song and play along on the Digital Piano.
NOTE
•The Music Library includes a number of duets. 
While a duet is selected, you can turn off the first 
piano (Primo) or second piano (Secondo) tone and 
play along with the song.
PREPARATION
•Select the song you want to practice and adjust the 
tempo. See “Configuring Settings with the 
Keyboard” on page E-21.
•A number of tunes have tempo changes part way 
through in order to produce specific musical effects.
1.
While holding down the FUNCTION button, 
press the SONG RECORDER (L/R) button to 
select the part you want to turn off.
•Pressing a button toggles its part on (button lamp on) 
and off (button lamp off).
2.
Press the SONG a button.
•This starts playback, without the part you turned off 
in step 1.
3.
Play the missing part on the keyboard.
4.
To stop playback, press the SONG a 
button again.
Playing Back a Specific Music 
Library Song Practicing with a Music Library 
Song
Left hand Right hand
Both parts on Right hand 
part off Left hand 
part off

E-14
Playing Back a Song
You can use your Digital Piano to play back audio data 
(WAV files*) stored on a commercially available USB 
flash drive.
See “USB Flash Drive” on page E-26 for more 
information.
*Linear PCM, 16bit, 44.1 kHz, Stereo
PREPARATION
•Prepare a USB flash drive that contains data 
recorded to it using the Digital Piano’s Audio 
Recorder. See “Recording to a USB Flash Drive 
(Audio Recorder)” on page E-18 for more 
information.
•You can also use a computer to save audio data 
(WAV file) to the USB Flash Drive for playback. See 
“Storing Standard Audio Data (WAV Files) to a USB 
Flash Drive” on page E-26 for more information.
•Insert the USB flash drive that contains the data you 
want to play back into your Digital Piano’s USB 
flash drive port.
1.
Press the AUDIO RECORDER button.
•This causes the two SONG a button indicator 
lamps to light.
2.
Press the SONG RECORDER button so its 
lamp is lit.
3.
Hold down the FUNCTION button as you use 
the SONG SELECT keyboard keys to select 
the song you want.
•Pressing the plus (+) key scrolls forward through 
song file names (WAV01, WAV02, etc.). Pressing the 
minus (–) key scrolls backward.
•You also can use the number (0 through 9) keyboard 
keys to directly select a file by inputting its number. 
The Digital Piano will beep if there is no file on the 
USB flash drive that corresponds to the number you 
input.
4.
Press the AUDIO RECORDER button and 
SONG a button at the same time.
•This will start playback of the selected song.
5.
To stop playback of the song, press the 
SONG a button.
Playing Back Audio Data 
Stored on a USB Flash Drive

E-15
English
Recording and Playback
You can use the Song Recorder to record what you play 
on the Digital Piano to built-in song memory. When a 
commercially available USB flash drive is inserted in 
the Digital Piano’s USB flash drive port, audio data is 
recorded to and played back from the USB flash drive 
(Audio Recorder).
Tracks
A track is a container of recorded data, and a song 
consists of two tracks: Track 1 and Track 2. You can 
record each track separately and then combine them so 
they play back together as a single song.
Memory Capacity
•You can record approximately 5,000 notes in Digital 
Piano memory.
•The SONG RECORDER button lamp will flash at 
high speed when memory runs low.
•Recording stops automatically if the number of 
notes in memory exceeds the maximum.
Recorded Data
•Keyboard play
•Tone used
•Pedal operations
•Reverb and chorus settings (Track 1 only)
•Tempo setting (Track 1 only)
•Layer setting (Track 1 only)
•Split setting (Track 1 only)
•Temperament and base note settings (Track 1 only)
•Octave shift setting (Track 1 only)
Recording Data Storage
•Starting a new recording deletes any data that was 
previously recorded in memory.
•Should power fail during recording, all of the data in 
the track you are recording will be deleted.
IMPORTANT!
• CASIO COMPUTER CO., LTD. takes no 
responsibility for any damages, lost profits, or claims 
by third parties arising from the deletion of recorded 
data due to malfunction, repair, or for any other 
reason.
SONG aMETRONOME
AUDIO RECORDER, FUNCTION SONG RECORDER
Recording to Built-in Song 
Memory (Song Recorder)
Track 1 Record While playing 
back. . .
Track 2 Record
Song

E-16
Recording and Playback
Each press of the SONG RECORDER button cycles 
through the recording options in the sequence shown 
below.
Recording to a Specific Song Track
After recording to either of the tracks of a song, you can 
record to the other track while listening to playback 
what you recorded in the first track.
1.
Press the SONG RECORDER button twice 
so its lamp is flashing.
•At this time the L lamp will flash to indicate that the 
Digital Piano is standing by for recording to Track 1.
2.
While holding down the FUNCTION button, 
press the SONG RECORDER (L/R) button to 
select the track you want to record.
•Make sure that the indicator lamp for the record track 
is flashing.
Track 1: L lamp
Track 2: R lamp
Example: Track 1 selected
3.
Select the tone and effects (Track 1 only) you 
want to use in your recording.
•Tone (page E-5)
•Effects (page E-8)
NOTE
•If you want the metronome to sound while you are 
recording, configure the beat and tempo settings, 
and then press the METRONOME button. See 
“Using the Metronome” on page E-9 for more 
information.
4.
Start playing something on the keyboard.
•Recording will start automatically.
5.
To stop recording, press the SONG a 
button.
•This will cause the SONG RECORDER button lamp 
and the lamp of the track you recorded to change 
from flashing to lit.
•To play back the track you just recorded, press the 
SONG a button.
6.
After you are finished recording or playing 
back, press the SONG RECORDER button 
so its lamp goes out.
Using the SONG RECORDER 
Button
Lit Flashing Off
Playback 
Standby
Record 
Standby Normal

English
Recording and Playback
E-17
Recording to One Track while Listening 
to Playback of the Other Track
1.
Press the SONG RECORDER button so its 
lamp is lit.
2.
While holding down the FUNCTION button, 
press the SONG RECORDER (L/R) button to 
select the track you want to play back while 
recording.
3.
Press the SONG RECORDER button so its 
lamp is flashing.
•This will cause the L lamp to flash.
4.
While holding down the FUNCTION button, 
press the SONG RECORDER (L/R) button to 
select the track you want to record.
•Make sure that the indicator lamp for the record track 
is flashing.
Example: To listen to playback of Track 1 as you record 
to Track 2
5.
Select the tone and effects (Track 1 only) you 
want to use for your recording.
6.
Press the SONG a button or play 
something on the keyboard.
•This will start both playback of the recorded track 
and recording to the other track.
7.
To stop recording, press the SONG a 
button.
Playing Back from Digital Piano Memory
1.
Press the SONG RECORDER button so its 
lamp is lit.
NOTE
•When a song has something recorded in both tracks, 
you can turn off one track and play back just the 
other track, if you want.
2.
Press the SONG a button.
•This starts playback of the song and/or track you 
selected.
NOTE
•You can change the tempo setting as a track is 
playing.
•Press the SONG a button again to stop playback.
Lit (Play) Flashing (Record Standby)

E-18
Recording and Playback
Deleting Recorded Data
The following procedure deletes a specific track of a 
song.
IMPORTANT!
• The procedure below deletes all of the data of the 
selected track. Note that the delete operation cannot 
be undone. Check to make sure you really do not 
need the data in Digital Piano memory before you 
perform the following steps.
1.
Press the SONG RECORDER button twice 
so its lamp is flashing.
2.
While holding down the FUNCTION button, 
press the SONG RECORDER (L/R) button to 
select the track you want to delete.
3.
Press the SONG RECORDER button until its 
lamp is lit.
•This will cause the lamp of the track you selected in 
step 2 of this procedure to flash.
Example: If you selected Track 2 for deletion
4.
Once again, hold down the FUNCTION 
button as you press the SONG RECORDER 
button.
•This deletes the selected track and enters playback 
standby.
•To cancel the delete operation at any time, press the 
SONG RECORDER button twice so its lamp is unlit.
NOTE
•Only the Digital Piano’s SONG RECORDER (L/R) 
button are operational from step 3 until you actually 
perform the delete operation in step 4. No other 
button operation can be performed.
Anything played on the Digital Piano is recorded to the 
USB flash drive as audio data (WAV files*). If you play 
along on the Digital Piano as you play back data stored 
in song memory, the memory playback and your 
keyboard play are both recorded to USB flash drive.
*Linear PCM, 16bit, 44.1 kHz, Stereo
Recording Capacity
•99 files (No. 01 to No. 99)
•Approximately 25 minutes maximum recording per 
file.
Recorded Data
•Anything played on the Digital Piano is recorded.
•Individual part recording is not supported.
Recording Data Storage
Each new recording of audio data to a USB flash drive 
is automatically assigned a new file name, so existing 
data is not overwritten.
Recording Digital Piano Play 
(Audio Recorder)
PREPARATION
•Be sure to format the USB flash drive on the Digital 
Piano before using it. See “USB Flash Drive” on page 
E-26 for more information.
1.
Insert the USB flash drive into the Digital 
Piano’s USB flash drive port.
2.
Press the AUDIO RECORDER button.
•This causes the two SONG a button indicator 
lamps to light.
3.
Press the SONG RECORDER button so its 
lamp is lit.
Off Flashing: Delete standby
Recording to a USB Flash 
Drive (Audio Recorder)

English
Recording and Playback
E-19
4.
Start playing something on the keyboard.
•The SONG RECORDER button lamp will flash once 
or twice to indicate that recording to the USB flash 
drive has started.
NOTE
•Do not remove the USB flash drive from the USB 
flash drive port while the two SONG a lamps are 
flashing or lit. Doing so will interrupt recording and 
may corrupt data.
5.
To stop recording, press the AUDIO 
RECORDER button.
•The two SONG a button lamps will flash four 
times to let you know that audio recording is 
complete.
Recording Digital Piano Play as Data 
Recorded in Song Memory Plays Back 
(Audio Recorder)
1.
Press the AUDIO RECORDER button.
•This causes the two SONG a button indicator 
lamps to light.
2.
Press the SONG RECORDER button so its 
lamp is lit.
3.
Press the SONG a button.
•This will start playback of the current song memory 
contents. Play along on the Digital Piano.
4.
To stop recording, press the AUDIO 
RECORDER button.
•The two SONG a button lamps will flash four 
times to let you know that audio recording is 
complete.
Playing Back Data Recorded on a USB 
Flash Drive
1.
Press the AUDIO RECORDER button.
•This causes the two SONG a button indicator 
lamps to light.
2.
Press the SONG RECORDER button so its 
lamp is lit.
3.
Press the AUDIO RECORDER button and 
SONG a button at the same time.
•This starts playback of the last song you recorded.
To select a file and play it
Hold down the FUNCTION button as you use the 
SONG SELECT keyboard keys to select the song you 
want.
•Press the minus (–) keyboard key to scroll back 
through songs in reverse chronological order.
•Press the plus (+) keyboard to key scrolls forward.
•You also can use the number keyboard keys 
(0 through 9) to inputting a two-digit file number (01 
to 99) and directly select a file (TAKE01.WAV, 
TAKE02.WAV, etc.). The keyboard will beep if there 
is no file on the USB flash drive that corresponds to 
the number you input.
4.
To stop playback of the song, press the 
SONG a button.
B

E-20
Recording and Playback
Deleting an Audio File from a USB Flash 
Drive
Files can be deleted one at a time.
IMPORTANT!
• The procedure below deletes all of the data of the 
selected track. Note that the delete operation cannot 
be undone. Check to make sure you really do not 
need the data in Digital Piano memory before you 
perform the following steps.
1.
Press the AUDIO RECORDER button.
•This causes the two SONG a button indicator 
lamps to light.
2.
Press the SONG RECORDER button twice 
so its lamp is flashing.
3.
If you want to delete the last file you 
recorded, jump directly to step 4.
To select a file and delete it
Hold down the FUNCTION button as you use the 
SONG SELECT keyboard keys to select the song you 
want.
•Press the minus (–) keyboard key to scroll back 
through songs in reverse chronological order.
•Press the plus (+) keyboard to key scrolls forward.
•You also can use the number keyboard keys 
(0 through 9) to inputting a two-digit file number (01 
to 99) and directly select a file (TAKE01.WAV, 
TAKE02.WAV, etc.). The keyboard will beep if there 
is no file on the USB flash drive that corresponds to 
the number you input.
4.
Hold down the SONG RECORDER button 
until both the L and R lamps flash.
5.
Once again, hold down the FUNCTION 
button as you press the SONG RECORDER 
button.
•The Digital Piano will enter the song recorder 
playback mode after file deletion is complete.
•To cancel the delete operation at any time, press the 
SONG RECORDER button twice so its lamp is unlit.
NOTE
•When you record a new file, it is always 
automatically assigned the next new file number in 
the sequence of files currently on the USB flash 
drive, even if a previous number is unused (because 
a file was deleted). For example, if a USB flash drive 
contains files numbered 01, 02, 04, 07, 08, the next 
file recorded to the USB flash drive will be assigned 
file number 09.
B

E-21
English
Configuring Settings with the Keyboard
In addition to selecting tones and Music Library tunes, 
you also can use the FUNCTION button in 
combination with the keyboard keys to configure 
effect, keyboard touch, and other settings.
1.
Use the “Parameter List” on pages E-23 - 
E-25 to find the setting you want to configure, 
and note its details.
2.
Use “Keyboard Keys Used for Configuring 
Settings” on page E-22 to find the location on 
the keyboard for configuring the setting you 
want.
3.
While holding down the FUNCTION button, 
press the keyboard key for the setting you 
want to configure.
•The Digital Piano will sound an operation tone after it 
configures the setting.
Example: To lower the transpose setting by one 
semitone
4.
Release the FUNCTION button to complete 
the setting procedure.
NOTE
•You can configure the Digital Piano so no operation 
tone sounds in step 3. For details, see “bt Operation 
tone” under “Parameter List” on pages E-23 - E-25.
Keyboard Setting Operation Types
There are four types of operations that you can perform 
while configuring settings with the keyboard keys: 
Type A, Type B, Type C, and Type D.
Example: Pressing the STRINGS keyboard key to select the 
STRINGS 1 tone
•Holding down a key raises or lowers the setting at 
high speed.
•To return to the initial default setting, press both 
keys at the same time.
Example: To enter “120”, press keys 1, 2, 0.
•When you press a key, the Digital Piano will beep to 
let you know which setting is selected.
•A long beep indicates that the applicable setting is 
turned off.
Example: While reverb is turned off, pressing the Reverb 
keyboard key twice will cause the Digital Piano 
to beep twice, which indicates that the Small Hall 
setting is selected.
NOTE
•You can find out what operation type applies to each 
setting by checking the “Operation Type” in the 
“Parameter List” on pages E-23 - E-25.
FUNCTION
To configure settings with the 
keyboard
Transpose T key
Type A : Direct input
Type B: Raising or lowering a setting using the + and 
– or T and S keyboard keys
Type C: Value input using the numeric keys (0 to 9)
Type D: Toggling or cycling through settings by 
pressing a keyboard key

E-22
Configuring Settings with the Keyboard
•The numbers 1 through cq correspond to the same numbers in the “Parameter List” on pages E-23 - E-25.
Keyboard Keys Used for Configuring Settings
  
 
−
+
OFF
/
ON
OFF
/
ON
OFF
/
ON
OFF
/
ON
[Left keyboard]
[Overall]
[Center keyboard]
[Right keyboard]
5Tempo/Temperament select
bmSong volume
boBrilliance
bnMetronome volume
1Keyboard key (Transpose)
2Keyboard tuning (Tuning)
3Octave shift
6Song select/Base note 7Tone selection
bpUSB device mode
bqLayer balance
blTouch response
brSend channel
bsLocal control
btOperation tone
ckBack up
clOperation lock
4Temperament
bkMetronome beat
8Reverb
9Chorus
cmUSB flash drive mode
cnFormat
coSave
cpLoad
cqDelete

Configuring Settings with the Keyboard
E-23
English
■Tones
■Song/Metronome
Parameter List
Parameter Settings
Operation 
Type 
(page E-21)
Description Remarks
7Tone selection See page E-5.
Default: GRAND 
PIANO 
(CONCERT)
A Assigns a tone to the keyboard. 
(page E-5)
8Reverb Off (OFF), 1 to 4
Default: 2
DSpecifies the reverb of notes. 
(page E-8)
9Chorus Off (OFF), 1 to 4
Default: 2
D Controls the breadth of notes. 
(page E-8)
bo Brilliance –3 to 0 to 3
Default: 0
BSpecifies the brilliance of notes. 
Pressing [+] makes notes brighter 
and harder. Pressing [–] makes 
notes mellower and softer.
• To return the setting to its initial default (0), 
press [+] and [–] at the same time.
bq Layer balance –24 to 0 to 24
Default: 0
B Specifies the volume balance 
between the main tone and the 
layered tone. (page E-8)
Parameter Settings
Operation 
Type 
(page E-21)
Description Remarks
5Tempo (TEMPO) 20 to 255
Default: 120
B (+/–)
C (0 to 9)
Specifies the tempo of Music 
Library songs, the metronome, 
recording and playback, etc. 
(page E-9)
• Always enter three digits when using the 
number keys (0 to 9) to input a value.
Example: To input 90, enter 0, 9, 0 (leading 
zero required).
• During recording, pressing + and – at the 
same time sets a value of 120.
6Song select 
(SONG SELECT)
01 to 70
Default: 01
B (+/–)
C (0 to 9)
Selects a Music Library tune. 
(page E-13)
• Always enter two-digits when using the 
number keys (0 to 9) to input a value.
Example: To input 8, enter 0, 8 (leading 
zero required).
• This setting cannot be changed while 
recording.
bm Song volume 00 to 42
Default: 42
B Sets the volume level of Music 
Library playback.
• This setting cannot be changed while 
recording.
bk Metronome beat 
(METRONOME 
BEAT)
0, 2, 3, 4, 5, 6
Default: 4
ASpecifies the metronome beat. 
(page E-9)
• The metronome beat setting cannot be 
changed while playback of a Music Library 
tune is in progress.
bn Metronome 
volume
00 to 42
Default: 36
B Specifies the metronome volume. 
(page E-10)

E-24
Configuring Settings with the Keyboard
■Keyboard
■MIDI and Other Settings
Parameter Settings
Operation Type 
(page E-21)
Description Remarks
1Keyboard key 
(Transpose)
–12 to 0 to 12
Default: 0
B Raises or lowers the tuning of 
the Digital Piano in semitone 
steps.
• The transpose setting cannot be 
configured while Music Library 
playback is in progress or while in 
the Duet Mode.
• Raising the key of the Digital Piano 
can cause notes the highest part of 
the range to become distorted.
2Keyboard tuning 
(Tuning)
415.5Hz to 440.0Hz 
to 465.9Hz
Default: 440.0Hz
BRaises or lowers the overall 
pitch of the Digital Piano in 
0.1Hz steps from the standard 
pitch of A4 = 440.0Hz.
• The pitch setting cannot be changed 
while playback of a Music Library 
tune is in progress.
3Octave shift –2 to 0 to 2
Default: 0
B Change the range of the 
keyboard in octave units.
• You can configure octave shift 
settings for the main tone part and 
layered tone part.
• You cannot configure octave shift 
settings for split tone parts.
4
5
6
Temperament
Temperament 
select
Temperament 
Base note
Temperament: 
00 to 16
Base note: 
–, +, 0 to 9 (C to B)
Defaults:
Temperament: 00 
(Equal Temperament)
Base note
: C
Hold down 
FUNCTION as you 
press each of the 
following keyboard 
keys.
1. TEMPERAMENT 
(4)
2. TEMPERAMENT 
SELECT (5)
3. BASE NOTE (6)
You can change the scale 
(tuning system) of the 
keyboard from standard equal 
temperament to another tuning 
that is more suitable for 
playing Indian music, Arabic 
music, classical pieces, etc.
<Temperaments>
00: Equal / 01: Pure Major / 02: Pure 
Minor / 03: Pythagorean / 
04: Kirnberger 3 / 05: Werckmeister / 
06: Mean-Tone / 07: Rast / 08: Bayati / 
09: Hijaz / 10: Saba / 11: Dashti / 
12: Chahargah / 13: Segah / 
14: Gurjari Todi / 15: Chandrakauns / 
16: Charukeshi
<Base notes>
–: C / +: C#/ 0: D / 1: Eb/ 2: E / 3: F / 
4: F#/ 5: G / 6: Ab/ 7: A / 8: Bb/ 9: B
bl Touch response 
(TOUCH 
RESPONSE)
Off (OFF), 1 to 3
Default: 2
A Specifies the relative touch of 
the keyboard keys.
Setting a smaller value causes 
lighter touch to produce more 
powerful sound.
Parameter Settings
Operation 
Type 
(page E-21)
Description Remarks
bp USB device 
mode
MIDI, Storage
Default: MIDI
–
The Digital Piano enters the MIDI 
mode automatically when it is 
connected to a computer by a USB 
cable. Select storage when saving 
Recorder memory song data to a 
computer or when loading 
computer song data to Digital 
Piano memory. (page E-36)
• While Storage is selected for this setting, the 
GRAND PIANO (CONCERT, MODERN) 
and ELEC PIANO button lamps flash, and 
all other lamps are unlit.
• All Digital Piano operations are disabled at 
this time.
• Each press of the USB device mode 
keyboard key toggles between the MIDI 
and storage modes.
br Send channel 01 to 16
Default: 01
BSpecifies one of the MIDI channels 
(1 through 16) as the Send channel, 
which is used for sending MIDI 
messages to an external device.
bs Local control Off, On
Default: On
D Selecting “Off” for Local control 
cuts off the Digital Piano’s sound 
source, so no sound is produced by 
the Digital Piano when keys are 
pressed.
• The local control setting cannot be changed 
while playback of a Music Library tune is in 
progress.

Configuring Settings with the Keyboard
E-25
English
bt Operation tone Off, On
Default: On
DSelecting “Off” disables sounding 
of the operation tone whenever a 
keyboard key is pressed while the 
FUNCTION is depressed.
• This setting is retained even when the 
Digital Piano is turned off.
• The operation tone setting cannot be 
changed while Music Library playback is in 
progress, while the metronome is 
sounding, and during recording.
ck Back up Off, On
Default: Off
D When “On” is selected for this 
setting, the Digital Piano will 
remember its current settings*1, 
and restore them when it is turned 
on again.
When “Off” is selected, settings*2 
are reset to their initial defaults 
whenever the Digital Piano is 
turned on.
*1
The following settings are not 
remembered.
•Duet Mode
•Tune LR (part)
•Local control
*2
Except for the operation tone 
on/off setting.
• The back up setting cannot be changed 
while Music Library playback is in 
progress, while the metronome is 
sounding, in the Duet Mode, and during 
recording.
cl Operation lock Off, On
Default: Off
DSelecting “On” for this setting locks 
the Digital Piano’s buttons (except 
for the P (POWER) button and the 
buttons required for unlock), so no 
operation can be performed.
Turn on operation lock when you 
want to protect against 
unintentional button operations.
• The operation lock setting cannot be 
changed while Music Library playback is in 
progress, while the metronome is 
sounding, and during recording.
cm USB flash drive 
mode
Off, On
Default: Off
–
USB flash drive mode.
cn Format Off, On
Default: Off
–
Formats a USB flash drive.
co Save Off, On
Default: Off
–
Stores data to a USB flash drive.
cp Load Off, On
Default: Off
–
Loads data from a USB flash drive to Digital Piano song memory.
cq Delete Off, On
Default: Off
–
Deletes USB flash drive data.
Parameter Settings
Operation 
Type 
(page E-21)
Description Remarks

E-26
USB Flash Drive
Your Digital Piano supports the following USB flash 
drive operations.
zUSB flash drive formatting
zData storage to a USB flash drive
zUSB flash drive data loading to Digital Piano 
memory
zDelete data from a USB flash drive
zEasy play back of song data from a USB flash drive
■Save and Load Data Formats and Capacities
*Can be converted to a standard MIDI file (SMI 
format 0, file name extension .MID) and saved.
Performing a record operation with the Digital Piano’s 
audio recorder creates a folder named AUDIO on the 
USB flash drive. WAV files are stored in the AUDIO 
folder, automatically assigning them names from 
TAKE01.WAV to TAKE99.WAV. You also can connect 
a USB flash drive to a computer and change the names 
of audio data (WAV) files to the format 
“TAKEXX.WAV”*, and move them to the AUDIO 
folder. Then you will be able to play them back on the 
Digital Piano.
*XX = 01 to 99
SONG a
FUNCTION
•Song data recorded with the Digital Piano’s song 
recorder is on a USB flash drive as MIDI files 
(SMF format 0).
•Standard audio data from a computer (WAV files) 
can also be stored on a USB flash drive and 
played back on the Digital Piano.
•Digital Piano play can be recorded directly to a 
USB flash drive. For details, see “Recording to a 
USB Flash Drive (Audio Recorder)” (page E-18).
•MIDI files and CASIO format files stored on a 
USB flash drive can be loaded into the Digital 
Piano’s Music Library (61 to 70).
Data Type Description 
(File Name Extension)
Supported 
Operations
Save to 
USB 
flash 
drive
Load 
from 
USB 
flash 
drive
User songs 
(page E-36)
One of the following two 
types of music data
1. CASIO format data 
(CM2)
2. Standard MIDI files 
(MID) 
SMF Format 0 or 
Format 1
–O
Songs 
recorded 
with song 
recorder 
(page E-15)
Song data recorded on 
this Digital Piano (MID)
O*–
Storing Standard Audio Data 
(WAV Files) to a USB Flash 
Drive
B

English
USB Flash Drive
E-27
USB Flash Drive and USB Flash Drive 
Port Handling Precautions
IMPORTANT!
• Be sure to observe the precautions provided in the 
documentation that comes with the USB flash drive.
• Avoid using a USB flash drive under the following 
conditions. Such conditions can corrupt data stored 
on the USB flash drive.
• Areas subjected to high temperature, high 
humidity, or corrosive gas
• Areas subjected to strong electrostatic charge and 
digital noise
• Never remove the USB flash drive while data is 
being written to or loaded from it. Doing so can 
corrupt the data on the USB flash drive and damage 
the USB flash drive port.
• Never insert anything besides a USB flash drive into 
the USB flash drive port. Doing so creates the risk of 
malfunction.
• A USB flash drive can become warm after very long 
use. This is normal and does not indicate 
malfunction.
• Static electricity conducted to the USB flash drive 
port from your hand or from a USB flash drive can 
cause malfunction of the Digital Piano. If this 
happens, turn the Digital Piano off and then back on 
again.
IMPORTANT!
• Never plug any other device besides a USB flash 
drive into the USB flash drive port.
■To insert a USB flash drive
1.
As shown in the illustration below, insert the 
USB flash drive into the Digital Piano’s USB 
flash drive port.
•Carefully push the USB flash drive in as far as it will 
go. Do not use undue force when inserting the USB 
flash drive.
■To remove a USB flash drive
1.
Check to confirm that there is no data 
exchange operation being performed, and 
then pull the USB flash drive straight out.
Copyrights
You are allowed to use recordings for your own 
personal use. Any reproduction of an audio or music 
format file, without the permission of its copyright 
holder, is strictly prohibited under copyright laws 
and international treaties. Also, making such files 
available on the Internet or distributing them to third 
parties, regardless of whether such activities are 
conducted with or without compensation, is strictly 
prohibited under copyright laws and international 
treaties. CASIO COMPUTER CO., LTD. shall not be 
held in any way liable for any use of this Digital 
Piano that is illegal under copyright laws.
Connecting a USB Flash Drive 
to and Detaching It from the 
Digital Piano
USB flash drive
USB flash drive port

E-28
USB Flash Drive
IMPORTANT!
• Be sure to format a USB flash drive on the Digital 
Piano before using it for the first time.
• Before formatting a USB flash drive, make sure it 
does not have any valuable data stored on it.
• The format operation performed by this Digital Piano 
is a “quick format”. If you want to completely delete 
all of the data in USB flash drive, format it on your 
computer or some other device.
<Supported USB Flash Drives>
This Digital Piano supports USB flash drives formatted 
to FAT32. If your USB flash drive is formatted to a 
different file system, use the Windows format function 
to reformat it to FAT32. Do not use quick format.
1.
Insert the USB flash drive you want to format 
into the Digital Piano’s USB flash drive port.
2.
While holding down the FUNCTION button, 
press the keyboard key that corresponds to 
the USB flash drive mode.
•This will cause the L/R lamps to flash.
3.
While holding down the FUNCTION button, 
press the format keyboard key.
•This will cause the SONG RECORDER button lamp 
to light.
•To cancel the format operation, hold down the 
FUNCTION button as you press the USB flash drive 
mode key.
4.
Press the SONG a button.
•This starts formatting.
•When formatting is complete, the L/R lamps will go 
out to indicate that the USB flash drive mode has 
been exited.
NOTE
•Formatting a large-capacity USB flash drive can take 
several minutes.
Formatting a USB Flash Drive
Flashing
Lit
Flashing
Flashing Off
Formatting 
started
Formatting 
complete
B

English
USB Flash Drive
E-29
Use the procedure below to save data you recorded on 
the Digital Piano to a USB flash drive as a MIDI file 
(SMF format 0).
1.
Insert the USB flash drive into the Digital 
Piano’s USB flash drive port.
2.
While holding down the FUNCTION button, 
press the keyboard key that corresponds to 
the USB flash drive mode.
•This will cause the L/R lamps to flash.
3.
While holding down the FUNCTION button, 
press the save keyboard key.
•This will cause the GRAND PIANO (CONCERT) 
button lamp to light.
•To exit the data save operation, hold down the 
FUNCTION button as you press the USB flash drive 
mode key.
4.
Hold down the FUNCTION button as you use 
the SONG SELECT keyboard keys to select 
a song number (61 to 70).
•The Digital Piano will emit a short beep if you specify 
a correct song number, and a long beep if the song 
number is not correct.
Saving a Recorded Song to a 
USB Flash Drive
Flashing
Lit

E-30
USB Flash Drive
5.
Press the SONG a button.
•This starts the data save operation.
•When saving is complete, the L/R lamps will go out 
to indicate that the USB flash drive mode has been 
exited.
■USB Flash Drive Data (File) Storage 
Locations
The above procedure stores piano data in a folder 
named MUSICLIB on the USB flash drive.
•The MUSICLIB folder is created automatically when 
you format the USB flash drive on the Digital Piano 
(page E-28).
•Note that files not in the MUSICLIB folder cannot be 
loaded or deleted by this Digital Piano.
•The “MUSICLIB” folder contains sub-folders named 
“61” through “70”. Data is saved in the sub-folder 
whose name corresponds to the song number you 
specify in step 4 of the procedure above.
You can use the procedure below to load user song 
data (page E-36) from a USB flash drive to the Digital 
Piano’s Music Library (song numbers 61 to 70). After 
that, you can play back the user song or use it for 
lesson play.
1.
On your computer, copy the file you want to 
load to one of the numbered sub-folders (61 
through 70) inside the “MUSICLIB” folder on 
the USB flash drive.
•The number names of the sub-folders correspond to 
the Digital Piano’s user song numbers (61 to 70).
2.
Insert the USB flash drive into the Digital 
Piano’s USB flash drive port.
3.
While holding down the FUNCTION button, 
press the keyboard key that corresponds to 
the USB flash drive mode.
•This will cause the L/R lamps to flash.
4.
While holding down the FUNCTION button, 
press the load keyboard key.
•This will cause the GRAND PIANO (MODERN) 
button lamp to light.
•To cancel the load operation, hold down the 
FUNCTION button as you press the USB flash drive 
mode key.
Loading Song Data from a 
USB Flash Drive into Digital 
Piano Memory
Flashing Off
Save started Save complete
Flashing
Lit

English
USB Flash Drive
E-31
5.
Hold down the FUNCTION button as you use 
the SONG SELECT keyboard keys to select 
a song number (61 to 70).
•The Digital Piano will emit a short beep if you specify 
a correct song number, and a long beep if the song 
number is not correct.
•Selecting song number 00 will batch load the 10 files 
from 61 through 70 to the Digital Piano’s song 
memory.
6.
Press the SONG a button.
•This starts loading of the data to the Music Library 
user song area.
•When loading is complete, the L/R lamps will go out 
to indicate that the USB flash drive mode has been 
exited.
You can use the procedure below to delete song data 
stored in the “MUSICLIB” folder on a USB flash drive.
1.
Insert the USB flash drive into the Digital 
Piano’s USB flash drive port.
2.
While holding down the FUNCTION button, 
press the keyboard key that corresponds to 
the USB flash drive mode.
•This will cause the L/R lamps to flash.
3.
While holding down the FUNCTION button, 
press the delete keyboard key.
•This will cause the ELEC PIANO button lamp to 
light.
•To exit the data delete operation, hold down the 
FUNCTION button as you press the USB flash drive 
mode key.
Flashing Off
Loading start Loading complete
Deleting Data from a USB 
Flash Drive
Flashing
Lit

E-32
USB Flash Drive
4.
Hold down the FUNCTION button as you use 
the SONG SELECT keyboard keys to select 
a song number (61 to 70).
•The Digital Piano will emit a short beep if you specify 
a correct song number, and a long beep if the song 
number is not correct.
5.
Press the SONG a button.
•This starts deletion of the selected data.
•When deleting is complete, the L/R lamps will go out 
to indicate that the USB flash drive mode has been 
exited.
You can use the procedure below to play back a user 
song (page E-36) stored on a USB flash drive without 
loading the song into Digital Piano Music Library 
memory (song numbers 61 to 70).
1.
On your computer, copy the data you want to 
play back on the Digital Piano into the 
MUSICLIB folder on the USB flash drive.
•Of the song data in the MUSICLIB folder, you can 
select any of the first 99 songs, sorted in file name 
sequence, for playback.
2.
Insert the USB flash drive into the Digital 
Piano’s USB flash drive port.
3.
While holding down the FUNCTION button, 
press the keyboard key that corresponds to 
the USB flash drive mode.
•This will cause the L/R lamps to flash.
4.
Press the SONG a button.
•This will start playback of the song data.
•Press the SONG a button again to stop playback.
5.
To change to another song, hold down the 
FUNCTION button as you use the SONG 
SELECT plus (+) and minus (–) keyboard 
keys to select the song you want to hear.
•Pressing the plus (+) or minus (–) key scrolls through 
song file names.
•You can use the value input keys (0 to 9) to enter a 
specific two-digit song number.
Example: To select song 08, enter 0 and then 8.
6.
To exit the USB flash drive song playback 
function, hold down the FUNCTION button as 
you press the USB flash drive mode key.
Flashing Off
Delete start Delete complete
Simple Play Back of a Song on 
a USB Flash Drive

USB Flash Drive
E-33
English
The following shows how the lamps indicate the error type when an error occurs due to data transfer failure or 
some other reason.
Error Indicators
Lamps Error Type Cause Action
No Media
1. The USB flash drive is 
not connected to the 
Digital Piano’s USB 
flash drive port.
1. Correctly plug the USB 
flash drive into the USB 
flash drive port.
2. The USB flash drive 
was removed while 
some operation was in 
progress.
2. Do not remove the USB 
flash drive while any 
operation is in 
progress.
3. The USB flash drive is 
write-protected.
3. Unprotect the USB 
flash drive.
4. The USB flash drive has 
anti-virus software.
4. Use a USB flash drive 
that does not have anti-
virus software.
No File
There is no loadable file in 
the “MUSICLIB” folder or 
no playable file in the 
“AUDIO” folder.
Move the file you want to 
load into the “MUSICLIB” 
folder or the file you want 
to play into the “AUDIO” 
folder (pages E-26 and 
E-29).
No Data
You are attempting to save 
data to a USB flash drive 
when there is no data to 
save.
Record something before 
performing a save 
operation.
Read Only
A read-only file with the 
same name you are trying 
to use is already stored on 
USB flash drive.
• Change the name and 
then save the new data.
• Remove the read-only 
attribute from the existing 
USB flash drive file and 
overwrite it with the new 
data.
• Use a different USB flash 
drive.
Media Full
There is not enough space 
available on the USB flash 
drive.
Delete some of the files on 
the USB flash drive to 
make room for new data 
(page E-31) or use a 
different USB flash drive.
File Full
1. There are too many 
files on the USB flash 
drive.
1. Delete some of the files 
on the USB flash drive 
to make room for new 
data.
2. There is a file named 
TAKE99.WAV in the 
“AUDIO” folder.
2. Delete the WAV file in 
the “AUDIO” folder.
Not SMF01
You are attempting to play 
back SMF Format 2 song 
data.
This Digital Piano 
supports playback of SMF 
Format 0 or Format 1 only.
Size Over
The data on the USB flash 
drive is too big to play.
This Digital Piano 
supports playback of song 
data files with a maximum 
size of 
65 kbytes.
B

E-34
USB Flash Drive
Wrong Data
1. The USB flash drive 
data is corrupted.
—
2. USB flash drive 
contains data that is not 
supported by this 
Digital Piano.
Convert
There is not enough 
Digital Piano memory 
available to convert a song 
recorder song to SMF data 
and store it on the USB 
flash drive.
Reduce the size of the song 
data.
Example:
Delete any tracks that are 
not required.
Format
1. The USB flash drive 
format is not 
compatible with this 
Digital Piano.
1. Format the USB flash 
drive on the Digital 
Piano.
2. The USB flash drive is 
corrupted.
2. Use a different USB 
flash drive.
Media R/W
The USB flash drive is 
corrupted.
Use a different USB flash 
drive.
Lamps Error Type Cause Action

E-35
English
Connecting to a Computer
You can connect the Digital Piano to a computer and 
exchange MIDI data between them. You can send play 
data from the Digital Piano to commercially available 
music software running on your computer, or you can 
send MIDI data from your computer to the Digital 
Piano for playback.
The following shows the minimum computer system 
requirements for sending and receiving MIDI data. 
Check to make sure that your computer complies with 
these requirements before connecting the Digital Piano 
to it.
zOperating System
Windows® XP (SP2 or later)*1
Windows Vista® *2
Windows® 7*3
Mac OS® X (10.3.9, 10.4.11, 10.5.X, 10.6.X, 10.7.X)
zUSB port
IMPORTANT!
• Never connect to a computer that does not conform 
to the above requirements. Doing so can cause 
problems with your computer.
IMPORTANT!
• Make sure you follow the steps of the procedure 
below exactly. Connecting incorrectly can make data 
send and receive impossible.
1.
Turn off the Digital Piano and then start up 
your computer.
•Do not start up the music software on your computer 
yet!
2.
After starting up your computer, use a 
commercially available USB cable to connect 
it to the Digital Piano.
3.
Turn on the Digital Piano.
•If this is the first time you are connecting the Digital 
Piano to your computer, the driver software required 
to send and receive data will be installed on your 
computer automatically.
4.
Start up commercially available music 
software on your computer.
5.
Configure the music software settings to 
select one of the following as the MIDI device.
•For information about how to select the MIDI device, 
see the user documentation that comes with the 
music software you are using.
IMPORTANT!
• Be sure to turn on the Digital Piano first before 
starting up your computer’s music software.
NOTE
•Once you are able to connect successfully, there is no 
problem with leaving the USB cable connected when 
you turn off your computer and/or Digital Piano.
•For detailed specifications and connections that 
apply to MIDI data send and receive by this Digital 
Piano, see the latest support information provided 
by the website at the following URL.
http://world.casio.com/
Minimum Computer System 
Requirements
*1: Windows XP Home Edition
Windows XP Professional (32-bit)
*2: Windows Vista (32-bit)
*3: Windows 7 (32-bit, 64-bit)
Connecting the Digital Piano 
to Your Computer
CASIO USB-MIDI : (For Windows Vista, Windows 7, 
Mac OS X)
USB Audio Device: (For Windows XP)
Computer USB port
A connector
Digital Piano USB port
B connector
USB cable
(A-B type)

E-36
Connecting to a Computer
What is MIDI?
The letters MIDI stand for Musical Instrument Digital 
Interface, which is the name of a worldwide standard 
for digital signals and connectors that makes it possible 
to exchange musical data between musical instruments 
and computers (machines) produced by different 
manufacturers.
NOTE
•For detailed information about MIDI 
Implementation, visit the CASIO website at: 
http://world.casio.com/.
See “Send channel” and “Local control” on page E-24.
Use the procedures in this section to transfer Recorder 
memory data to a computer for storage, and to load 
songs to user song memory (Music Library 61 to 70).
IMPORTANT!
• Turning off the Digital Piano while data is being 
saved or loaded can cause all data currently stored 
in Digital Piano memory (recorded songs, etc.) to be 
deleted. Take care so power is not turned off 
accidentally during data save and load operations. If 
data is deleted, it will take longer than normal for the 
Digital Piano to power up the next time you turn it on 
(page E-4).
1.
Perform steps 1 through 3 of the procedure 
under “Connecting the Digital Piano to Your 
Computer” on page E-35.
2.
Change the Digital Piano’s USB device mode 
to storage.
•While holding down the FUNCTION button, press 
the keyboard key that corresponds to the USB device 
mode.
•After this setting is changed, the GRAND PIANO 
(CONCERT, MODERN) and ELEC PIANO button 
lamps flash, and all other lamps are unlit.
•See “USB device mode” on page E-24 for more 
information.
3.
On your computer, perform the required 
operation to display your computer’s storage 
devices.
•The memory of this Digital Piano will appear as 
“PIANO” under “Devices with Removable Storage”.
Using MIDI
Transferring Song Data with a 
Computer
If your computer is 
running this operating 
system:
Do this:
Windows XP Double-click “My Computer”.
Windows Vista, 
Windows 7
Double-click “Computer”.
Mac OS Skip step 3 and double-click 
“PIANO” on your Mac 
desktop.

English
Connecting to a Computer
E-37
4.
Double-click “PIANO”.
•“PIANO” contains folders named “MUSICLIB” and 
“RECORDER”.
•To transfer a user song to the Digital Piano from your 
computer, open the “MUSICLIB” folder and put the 
song into one of the numbered subfolders (61 
through 70). Each subfolder corresponds to a Music 
Library number: Subfolder 61 to Music Library 61, 
and so on.
•The files in the “RECORDER” folder are songs that 
have been recorded with the Digital Piano’s recorder 
function. You can move files from the “RECORDER” 
folder to another location on your computer, and you 
can return recorded song files to the Digital Piano by 
placing them into the “RECORDER” folder.
*Before starting a store or load operation, first check 
the file name extension to ensure it matches the ones 
shown in this column. 
In the case of a song recorded with the Digital 
Piano’s recorder function, change its file name to one 
of the names and extensions shown in this column.
IMPORTANT!
• The initial default configuration for Windows XP, 
Windows Vista, and Windows 7 is to hide file name 
extensions. Perform one of the following operations 
on your computer to show file name extensions.
•To show file name extensions under Windows XP
•To show file name extensions under Windows Vista 
or Windows 7
■To load a song into user song memory 
(Music Library 61 to 70)
Data Type Folder 
Name File Name and Extension*
User songs MUSICLIB .MID: SMF format data 
(format 0/1)
.CM2: CASIO original 
format data
Recorder 
memory data
RECORDER BIDREC01.CSR: CASIO 
original format data
1. Open the folder you want.
2. On the [Tools] menu, click [Folder Options].
3. Click the [View] tab. In the [Advanced settings] list, 
clear the check box next to [Hide extensions for 
known file types].
4. Click [OK].
1. Open Folder Options by clicking the [Start] button, 
clicking [Control Panel], clicking [Appearance and 
Personalization], and then clicking [Folder Options].
2. Click the [View] tab. Under [Advanced settings] 
clear the [Hide extensions for known file types] 
check box.
3. Click [OK].
1. Open the MUSICLIB folder.
2. Copy the song file (.MID or .CM2) to the number-
named subfolder (61 to 70) whose name matches the 
number of the Music Library location to which you 
want to load the song.
•If there are two files with the filename extensions 
.MID and .CM2 in the MUSICLIB folder, only the 
.MID data will be loaded into user song memory.

E-38
Connecting to a Computer
■To transfer Recorder memory data between 
the Digital Piano and your computer
To transfer the Digital Piano’s current Recorder 
memory data to your computer, copy the contents of 
the RECORDER folder to your computer.
To return Recorder data you previously saved to your 
computer back to Recorder memory, copy it back to the 
RECORDER folder (and replace the current 
RECORDER folder contents).
5.
After the file copy operation is complete, 
return the USB device mode to MIDI.
•If you are using a Macintosh, perform the eject 
operation (drag them to the trash can).
•While holding down the FUNCTION button, press 
the applicable keyboard key. See “USB device mode” 
on page E-24 for more information.
•Returning the USB device mode to MIDI will load the 
contents of MUSICLIB into user song memory and 
the contents of RECORDER into Recorder memory.
IMPORTANT!
• A data conversion error is indicated when both of the 
SONG a button lamps, and the GRAND PIANO 
(CONCERT, MODERN) and ELEC PIANO button 
lamps are all lit, and all other lamps are unlit.
Copyrights
The rights of creators and copyright holders of music, 
images, computer programs, databases, and other 
data are protected by copyright laws. You are allowed 
to reproduce such works for personal or non-
commercial use only. For any other purpose, all 
reproduction (including data format conversion), 
modification, transfer of reproductions, distribution 
over a network, or any other use without permission 
of the copyright holder exposes you to claims for 
damages and criminal prosecution for copyright 
infringement and violation of the author’s personal 
rights. Be sure to reproduce and otherwise use 
copyrighted works only in accordance with applicable 
copyright laws.

E-39
English
Getting Ready
PREPARATION
•Before starting assembly, check to make sure that 
you have all the parts shown below.
•This stand does not include any of the tools required 
for assembly. It is up to you to prepare a large 
Philips head (+) screwdriver for assembly.
IMPORTANT!
• Do not use any screws other than those that come 
with the stand. Doing so risks damage to the stand 
and/or Digital Piano.
• You can find the screws in a plastic bag inside of the 
packing material.
• If anything is missing or damaged, contact your local 
CASIO service provider.
*CAUTION
•The stand should be assembled by two people 
working together.
•The stand should be assembled on a flat surface.
•Do not remove the tape securing the keyboard cover 
in place until assembly is complete. Removing the 
tape can cause the keyboard cover to open and close 
during assembly, creating the risk of personal injury 
to your hands and fingers.
•Take care that you do not pinch your fingers 
between parts when assembling them.
•When placing the Digital Piano on the floor, be sure 
to place it on something soft (a blanket, cushion, 
etc.). Do not place the Digital Piano directly onto the 
floor.
NOTE
•Be sure to follow the proper procedure when 
assembling the stand.
PREPARATION
•Pull the pedal unit cable out from the pedal unit E.
Assembling the Stand
ASide panel ........................... ×1
BSide panel ........................... ×1
CBack board .......................... ×1
DScrew caps.......................... ×6
EPedal unit ............................ ×1
FScrews ................................ ×2
GClips .................................... ×2
HBrackets .............................. ×2
IScrew caps ......................... ×2
JScrews ................................ ×4
KBack board .......................... ×1
LBrackets .............................. ×2
MScrews ................................ ×4
NScrews ................................ ×3
OHeadphones hook............... ×1
PScrew .................................. ×1
A
B
D
H
I
F
G
E
C
J
L
M
N
O
P
K
E

E-40
Getting Ready
1.
Remove the four screws (two on each end) 
from back board C.
2.
Attach side panels A and B to back board 
C. Secure side panels A and B to the back 
board C using the screws you removed in 
step 1.
•Attach the side panels so the side of the back board C 
where the joint connectors are inserted is facing 
towards the back of the stand.
•If you have trouble inserting a screw into a joint 
connector screw hole, use a screwdriver to adjust the 
joint connector by rotating it.
3-1.
If you plan to locate the piano and stand 
where it is not against a wall, you need to 
extend the anti-tip brackets at the base of 
side panels A and B. Remove the two 
screws (one on the outside of each side 
panel) that hold the brackets, and then slide 
the brackets as shown in the illustration. After 
extending the anti-tip brackets, reinstall the 
screws that secure them in place, but do not 
tighten the screws fully at this time.
[Inside of side panels]
3-2.
If you plan to locate the piano and stand 
against a wall, loosen the two screws (one on 
the outside of each side panel) that secure 
the brackets. You do not need to remove the 
screws in this case.
•In this case, you do not need to remove the screws. 
Just loosen them.
C
CC
AB
Joint
connectors

English
Getting Ready
E-41
4.
Insert angle brackets H into the gap between 
the anti-tipping bracket and the side panel.
5.
From the outside of side panels A and B, 
temporarily tighten the screws you loosened 
in step 3, above.
6.
Mount pedal unit E onto angle brackets H, 
which you installed in step 5, above.
7.
Mount brackets L onto both ends of the 
pedal unit E.
8.
Use the screws F to securely fix the brackets 
L to the pedal unit E.
9.
After adjusting the position (height) of pedal 
unit 
E
, fully tighten the screws that you 
temporarily tightened in step 5, above.
10.
Secure the back board K to the back board 
C.
•Screw the screws M into the four holes in the back 
board K.
H
E
L
F
M4
X
C
K

E-42
Getting Ready
11.
Go around to the front of the Digital Piano 
and securely tighten the three screws N 
shown in the illustration below.
12.
Mount the piano onto the stand. Position the 
piano so the dowels on the top edges of side 
panels 
A
 and 
B
 enter the dowel holes on the 
bottom of the piano.
•Note that there is nothing anchoring the piano to the 
stand at this time. Take care to ensure that the piano 
does not fall off the stand.
13.
Use the screws 
J
 to securely fix the brackets 
at the top of side panels 
A
 and 
B
 to the 
bottom of the piano.
14.
After checking to make sure the six screws 
that secure side panels A and B are fully 
tightened, cover the heads of the screws with 
screw caps D.
15.
With the two screw caps I, cover the heads 
of the screws that you fully tightened in 
step 8.
N
3
X
JJ
D
I

English
Getting Ready
E-43
16.
Install the headphones hook O.
1.
Making sure that the pedal unit cable plug is 
oriented as shown in the illustration below, 
plug it into the pedal connector on the bottom 
of the piano.
•Press the plug fully into the connector as far as it will 
go.
•Use the clips G to secure the pedal cable to two 
locations on side panel B.
2.
Insert the plug of the AC adaptor that comes 
with the Digital Piano into its power terminal 
(DC 24V).
3.
Plug the power cord of the AC adaptor that 
comes with the Digital Piano into a household 
power outlet as shown in the illustration 
below.
1.
Install the music stand by inserting its pegs 
into the holes in the top of the piano.
(16-1) Insert the headphones hook O into the two holes 
on the bottom of the piano.
(16-2) Use the screw P to secure the headphones hook 
in place.
To connect the cable
O
P
16-2
16-1
G
To install the music stand
AC adaptor plug
Supplied AC adaptor
Household power outlet
AC adaptor
Power cord

E-44
Getting Ready
IMPORTANT!
• Use both hands whenever opening or closing the lid, 
and take care that you do not close it on your fingers.
• Do not open the lid too wide. Doing so creates the 
risk of damage to the cover and Digital Piano.
• Stand in front of the Digital Piano on the right side 
when opening or closing the lid.
To open the lid
1.
Lift up the lid as shown in the illustration.
•The lid has a support bracket (indicated by the star  
in the illustration) attached to its inside surface. 
Check to make sure that the support bracket is 
standing up fully.
To close the lid
1.
Carefully lift up slightly on the lid.
2.
Use the fingers of your left hand to press 
back on the support bracket () as you 
slowly and carefully lower the lid.
Opening and Closing the 
Piano Lid

English
Getting Ready
E-45
Your Digital Piano runs on standard household 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 
malfunction of the Digital Piano.
Specified AC Adaptor: AD-E24250LW
•Use the supplied power cord to connect the AC 
adaptor.
■About the AC adaptor that comes with the 
Digital Piano
Note the following important precautions to avoid 
damage to the AC adaptor and power cord.
•Never pull on the cord with excessive force.
•Never repeatedly pull on the cord.
•Never twist the cord at the base of the plug or 
connector.
•Before moving the Digital Piano, be sure to unplug 
the AC adaptor from the power outlet.
•Loop and bundle the power cord, but never wind it 
around the AC adaptor.
IMPORTANT!
• Never connect the AC adaptor that comes with this 
Digital Piano to any other device besides this Digital 
Piano. Doing so creates the risk of malfunction.
• Make sure the Digital Piano is turned off before 
plugging in or unplugging the AC adaptor.
• The AC adaptor will become warm to the touch after 
very long use. This is normal and does not indicate 
malfunction.
• Use the AC adaptor so its label surface is pointed 
downwards. The AC adaptor becomes prone to 
emitting electromagnetic waves when the label 
surface is facing upwards.
Connect commercially available headphones to the 
PHONES jacks. Connecting headphones to either of 
the PHONES jack cuts off output to the speakers, 
which means you can practice even late at night 
without bothering others. To protect your hearing, 
make sure that you do not set the volume level too high 
when using headphones.
NOTE
•Be sure to push the headphones plug into the 
PHONES jacks as far as it will go. If you don’t, you 
may hear sound from only one side of the 
headphones.
•If the plug of the headphones you are using does not 
match the PHONES jacks, use the applicable 
commercially available adaptor plug.
•If you are using headphones that require an adaptor 
plug, make sure you do not leave the adaptor 
plugged in when you unplug the headphones. If you 
do, nothing will sound from the speakers when you 
play.
Power Outlet Connecting Headphones
PHONES jacks
Front
Stereo standard plug

E-46
Getting Ready
You can connect audio equipment or a music amplifier 
to the Digital Piano and then play through external 
speakers for more powerful volume and better sound 
quality.
IMPORTANT!
• The Digital Piano automatically adjusts sound output 
to optimize for headphone output (when headphones 
are connected) or built-in speaker output (when 
headphones are not connected). This also will cause 
a change in the output quality from the Digital 
Piano’s LINE OUT R and L/MONO jacks.
• Whenever connecting a device to the Digital Piano, 
first use the VOLUME controller to set the volume to 
a low level. After connecting, you can adjust the 
volume to the level you want.
• Whenever you connect any device to the Digital 
Piano, be sure to read the user documentation that 
comes with the device.
Connecting to Audio Equipment 1
Use commercially available cables to connect the 
external audio equipment to the Digital Piano’s LINE 
OUT jacks as shown in Figure 1. LINE OUT R jack 
output is right channel sound, while LINE OUT L/
MONO jack output is left channel sound. It is up to 
you to purchase connecting cables like the ones shown 
in the illustration for connection of audio equipment. 
Normally in this configuration you must set the audio 
equipment’s input selector to the setting that specifies 
the terminal (such as AUX IN) to which the piano is 
connected. Use the Digital Piano’s VOLUME controller 
to adjust the volume level.
Connecting to a Musical Instrument 
Amplifier 2
Use commercially available cables to connect the 
amplifier to the Digital Piano’s LINE OUT jacks as 
shown in Figure 2. LINE OUT R jack output is right 
channel sound, while LINE OUT L/MONO jack 
output is left channel sound. Connecting to the LINE 
OUT L/MONO jack only outputs a mixture of both 
channels. It is up to you to purchase connecting cable 
like the one shown in the illustration for connection of 
the amplifier. Use the Digital Piano’s VOLUME 
controller to adjust the volume level.
IMPORTANT!
• When using the LINE OUT jacks, also connect 
headphones to the PHONES jack. This will switch 
the LINE OUT output to appropriate sound quality.
Use only accessories that are specified for use with this 
Digital Piano.
Use of unauthorized accessories creates the risk of fire, 
electric shock, and personal injury.
NOTE
•You can get information about accessories that are 
sold separately for this product from the CASIO 
catalog available from your retailer, and from the 
CASIO website at the following URL.
http://world.casio.com/
Connecting Audio Equipment 
or an Amplifier
INPUT 1
INPUT 2
Guitar amplifier
Keyboard amplifier, etc.
Standard plug
To either of the Digital Piano’s LINE OUT jacks
RIGHT (Red)
LEFT (White)
Audio amplifier AUX IN jack, etc.
Pin plug
Bundled and Optional 
Accessories
B

E-47
English
Reference
Troubleshooting
Problem Cause Action See 
Page
No sound is produced when I 
press a keyboard key.
1. The VOLUME controller is set to 
“MIN”.
1. Rotate the VOLUME controller more towards 
“MAX”.
) E-6
2. Headphones or an adaptor plug is 
plugged into one of the PHONES 
jacks.
2. Disconnect whatever is connected to the 
PHONES jacks.
) E-45
3. MIDI Local control is turned off. 3. Turn on the Local control setting. ) E-24
The pitch of the Digital Piano 
is off.
1. The Digital Piano’s key setting is 
something other than “440.0Hz”.
1. Change the key setting to “440.0Hz”, or turn 
Digital Piano power off and then back on 
again.
) E-24
2. Digital Piano tuning is incorrect. 2. Adjust Digital Piano tuning, or turn the Digital 
Piano off and then back on again.
) E-24
3. Octave shift is enabled. 3. Change the octave shift setting to 0. ) E-24
4. A non-standard temperament 
setting is being used.
4. Change the temperament setting to 
“00: Equal”, which is the standard modern 
tuning.
) E-24
Nothing happens when I 
press a pedal.
The pedal unit cable is not connected. Connect the cable correctly. ) E-43
Tones and/or effects sound 
strange. Turning power off 
and then back on again does 
not eliminate the problem.
Example:
 Note intensity does 
not change even though I 
alter key pressure.
The “Back up” feature is turned on. Turn off “Back up”. Next, turn power off and then 
back on again.
) E-25
I cannot transfer data after 
connecting the Digital Piano 
to a computer.
– 1. Check to make sure that the USB cable is 
connected to the Digital Piano and computer, 
and that the correct device is selected with 
your computer’s music software.
) E-35
2. Turn off the Digital Piano and then exit the 
music software on your computer. Next, turn 
the Digital Piano back on and then restart the 
music software on your computer.
I cannot store data to a USB 
flash drive or load data from a 
USB flash drive.
– See “Error Indicators”. ) E-33
It takes a long time before I 
can use the Digital Piano after 
I turn it on.
Digital Piano memory data was 
corrupted because a data transfer 
operation with a computer was in 
progress the last time you turned off 
the Digital Piano. When this happens, 
the Digital Piano performs a memory 
format operation the next time you turn 
it on. You cannot perform any other 
operation while a format operation is in 
progress.
It takes about 20 seconds after you turn on 
power to perform the memory format operation. 
Wait until the format operation is complete. Note 
that you should take care to avoid turning off the 
Digital Piano while a data transfer operation with 
a computer is in progress.
) E-36
A tone’s quality and volume 
sounds slightly different 
depending where it is played 
on the keyboard.
This is an unavoidable result of the digital sampling process,* and does not indicate malfunction.
*Multiple digital samples are taken for the low range, middle range, and high range of the original 
musical instrument. Because of this, there may be very slight differences in tonal quality and 
volume between sample ranges.
When I press a button, the 
note that is sounding cuts out 
momentarily or there is a 
slight change in how effects 
are applied.
This happens when the sounds of multiple parts are sounding at the same time while using layer, 
using the Duet Mode, playing back a built-in tune, recording, etc. Pressing a button when one of 
these conditions exists will cause the effect setting that is built into the tone to change automatically, 
which causes notes to cut out momentarily or causes a slight change in how effects are being 
applied.

E-48
Reference
•Specifications and designs are subject to change without notice.
Product Specifications
Model PX-850BK
Keyboard 88-key piano keyboard, with Touch Response
Maximum Polyphony 256 notes
Tones 18
• Layer (excluding bass tones)
• Split (Low-range bass tones only)
Effects Brilliance (–3 to 0 to 3), Reverb (4 types), Chorus (4 types), DSP, Damper Resonance,
Hammer response, String resonance, Lid simulator, Key Off Simulator
Metronome • Beats: 0, 2, 3, 4, 5, 6
• Tempo Range: 20 to 255
Duet Adjustable tone range (–1 to 2 octaves)
Music Library • Number of Songs: 60, User Songs: 10 (Up to approximately 90KB per song, approximately 900KB for 10 
songs)*
*Based on 1KB = 1024 bytes, 1MB = 10242 bytes
• Song volume: Adjustable
• Part On/Off: L, R
Song Recorder • Functions: Real-time recording, playback
• Number of Song: 1
• Number of Tracks: 2
• Capacity: Approximately 5,000 notes total
• Recorded Data Protection: Built-in flash memory
Audio Recorder • Real-time recording and playback to USB flash drive*
*Linear PCM, 16bit, 44.1 kHz, stereo .WAV format
• Songs: 99 files
• Approximately 25 minutes maximum recording per file.
Pedals Damper (with half-pedal operation), Soft, Sostenuto
Other Functions • Touch Select: 3 types, Off
• Transpose: 2 octaves (–12 to 0 to 12)
• Tuning: 415.5Hz to 440.0Hz to 465.9Hz (variable)
• Temperament
• Octave shift
• Operation Lock
MIDI 16-channel multi-timbre receive
USB Flash Drive SMF playback, data storage, data loading, USB flash drive format, delete data, play back of audio data
Inputs/Outputs • PHONES jacks: Stereo standard jacks × 2
• Power: 24V DC
•LINE OUT R, L/MONO jacks: Standard jacks × 2
Output impedance: 2.3KΩ
Output voltage: 1.8V (RMS) MAX
• USB port : Type B
• USB flash drive port : Type A
• Pedal connector
Speakers
φ
 12cm × 2 + 
φ
 5cm × 2 (Output 20W + 20W)
Power Requirements AC Adaptor: AD-E24250LW
• Auto Power Off: Approximately 4 hours after last operation. Auto Power Off can be disabled.
Power Consumption 24V = 20W
Dimensions Digital Piano and Stand: 136.7 (W) × 29.9 (D) × 83.7 (H) cm (53 7/8 × 11 × 32 15/16 inch)
Weight Digital Piano and Stand: approximately 35.5kg (78.3 lbs)
B

English
Reference
E-49
Be sure to read and observe the following operating 
precautions.
■Location
Avoid the following locations for this product.
•Areas exposed to direct sunlight and high humidity
•Areas subjected to temperature extremes
•Near a radio, TV, video deck, or tuner
The above devices will not cause malfunction of the 
product, but the product can cause interference in 
the audio or video of a nearby device.
■User Maintenance
•Never use benzine, alcohol, thinner, or other 
chemical agents to clean the product.
•To clean the product or its keyboard, wipe with a 
soft cloth moistened in a weak solution of water and 
a mild neutral detergent. Wring all excess moisture 
from the cloth before wiping.
■Included and Optional Accessories
Use only accessories that are specified for use with this 
product. Use of unauthorized accessories creates the 
risk of fire, electric shock, and personal injury.
■Weld Lines
Lines may be visible on the exterior of the product. 
These are “weld lines” that result from the plastic 
molding process. They are not cracks or scratches.
■Musical Instrument Etiquette
Always be aware of others around you whenever using 
this product. Be especially careful when playing late at 
night to keep the volume at levels that do not disturb 
others. Other steps you can take when playing late at 
night are closing the window and using headphones.
•Any reproduction of the contents of this manual, 
either in part or its entirety, is prohibited. Except for 
your own, personal use, any other use of the 
contents of this manual without the consent of 
CASIO is prohibited under copyright laws.
•IN NO EVENT SHALL CASIO BE LIABLE FOR 
ANY DAMAGES WHATSOEVER (INCLUDING, 
WITHOUT LIMITATION, DAMAGES FOR LOSS 
OF PROFITS, BUSINESS INTERRUPTION, LOSS 
OF INFORMATION) ARISING OUT OF THE USE 
OF OR INABILITY TO USE THIS MANUAL OR 
PRODUCT, EVEN IF CASIO HAS BEEN ADVISED 
OF THE POSSIBILITY OF SUCH DAMAGES.
•The contents of this manual are subject to change 
without notice.
■AC Adaptor Handling Precautions
•Use a power outlet that is easily accessible so you 
can unplug the AC adaptor when a malfunction 
occurs or whenever else you need to do so.
•The AC adaptor is intended for indoor use only. Do 
not use it where it might be exposed to splashing or 
moisture. Do not place any container, such as a 
flower vase, that contains liquid on the AC adaptor.
•Store the AC adaptor in a dry place.
•Use the AC adaptor in an open, well-ventilated area.
•Never cover the AC adaptor with newspaper, a table 
cloth, a curtain, or any other similar item.
•Unplug the AC adaptor from the power outlet if you 
do not plan to use the Digital Piano for a long time.
•Never try to repair the AC adaptor or modify it in 
any way.
•AC adaptor operating environment
Temperature: 0 to 40°C
Humidity: 10% to 90% RH
•Output polarity:
Operating Precautions

E-50
Reference
AC Adaptor Handling Precautions
Model: AD-E24250LW
1. Read these instructions.
2. Keep these instructions on hand.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this product near water.
6. Clean only with a dry cloth.
7. Do not install near radiators, heat registers, stoves, or any other source of heat (including amplifiers).
8. Use only attachments and accessories specified by the manufacturer.
9. Refer all servicing to qualified service personnel. Servicing is required after any of the following occurs: 
when the product is damaged, when the power supply cord or plug is damaged, when liquid is spilled into 
the product, when a foreign object falls into the product, when the product is exposed to rain or moisture, 
when the product does not operate normally, when the product is dropped.
10. Do not allow the product to be exposed to dripping or splashing liquid. Do not place any object containing 
liquid on the product.
11. Do not allow the electrical load output to exceed the label rating.
12. Make sure the surrounding area is dry before plugging into a power source.
13. Make sure the product is oriented correctly.
14. Unplug the product during lightning storms or when you do not plan to use it for a long time.
15. Do not allow product ventilation openings to become blocked. Install the product in accordance with the 
manufacturer’s instructions.
16. Take care the power cord is located where it will not be stepped upon or bent severely, particularly in 
locations close to plugs and convenience receptacles, and in locations where it exits from the product.
17. The AC adaptor should be plugged into a power outlet as close to the product as possible to allow 
immediate disconnection of the plug in case of emergency.
The symbol below is an alert indicating un-insulated hazardous voltage inside the product’s enclosure, which 
may be sufficient to constitute the risk of electric shock to users.
’
The symbol below is an alert indicating the presence of important operating and maintenance (servicing) 
instructions in the documentation that accompanies the product.
*

A-1
Appendix/Apéndice
Tone List/Lista de tonos
Tone Name/
Nombre de tonos
Program Change/
Cambio de programa
Bank Select MSB/
MSB de selección de 
banco
GRAND PIANO CONCERT 0 0
GRAND PIANO MODERN 0 1
GRAND PIANO CLASSIC 0 2
GRAND PIANO MELLOW
0 3
GRAND PIANO BRIGHT
04
ELEC PIANO 4 0
FM E.PIANO 5 0
60’S E.PIANO 4 1
HARPSICHORD 6 0
VIBRAPHONE 11 0
STRINGS 1 49 0
STRINGS 2 48 0
PIPE ORGAN 19 0
JAZZ ORGAN 17 0
ELEC ORGAN 1 16 0
ELEC ORGAN 2 16 1
BASS (LOWER) 1 32 0
BASS (LOWER) 2 32 1
Song List/Lista de canciones
No./NºSong Name/Nombre de canciones
01 Nocturne Op.9-2
02 Fantaisie-Impromptu Op.66
03 Étude Op.10-3 “Chanson de l’adieu”
04 Étude Op.10-5 “Black Keys”
05 Étude Op.10-12 “Revolutionary”
06 Étude Op.25-9 “Butterflies”
07 Prélude Op.28-7
08 Valse Op.64-1 “Petit Chien”
09 Valse Op.64-2
10 Moments Musicaux 3
11 Impromptu Op.90-2
12 Marche Militaire 1 (Duet)
13 Frühlingslied [Lieder Ohne Worte Heft 5]
14 Fröhlicher Landmann [Album für die Jugend]
15 Von fremden Ländern und Menschen [Kinderszenen]
16 Träumerei [Kinderszenen]
17 Tambourin
18
Menuet BWV Anh.114 [Clavierbüchlein der Anna Magdalena Bach]
19 Inventio 1 BWV 772
20 Inventio 8 BWV 779
21 Inventio 13 BWV 784
22 Praeludium 1 BWV 846 [Das Wohltemperierte Klavier 1]
23 Le Coucou
24 Gavotte
25 Sonatina Op.36-1 1st Mov.
26 Sonatine Op.20-1 1st Mov.
27 Sonate K.545 1st Mov.
28 Sonate K.331 3rd Mov. “Turkish March”
29 Rondo K.485
30 Für Elise
31 Marcia alla Turca
32 Sonate Op.13 “Pathétique” 1st Mov.
33 Sonate Op.13 “Pathétique” 2nd Mov.
34 Sonate Op.13 “Pathétique” 3rd Mov.
35 Sonate Op.27-2 “Moonlight” 1st Mov.
36 Rhapsodie 2
37 Waltz Op.39-15 (Duet)
38 Liebesträume 3
39 Blumenlied
40 La Prière d’une Vierge
41 Csikos Post
42 Humoresque Op.101-7
43 Melodie [Lyrische Stücke Heft 2]
44 Sicilienne Op.78
45 Berceuse [Dolly] (Duet)
46 Arabesque 1
47 La Fille aux Cheveux de Lin [Préludes]
48 Passepied [Suite bergamasque]
49 Gymnopédie 1
50 Je Te Veux
51 Salut d’Amour
52 The Entertainer
53 Maple Leaf Rag
54 L’arabesque [25 Etüden Op.100]
55 La Styrienne [25 Etüden Op.100]
56 Ave Maria [25 Etüden Op.100]
57 Le retour [25 Etüden Op.100]
58 La chevaleresque [25 Etüden Op.100]
59 No.13 [Études de Mécanisme Op.849]
60 No.26 [Études de Mécanisme Op.849]

Function Transmitted Recognized Remarks
Basic 
Channel
1 - 16
1 - 16
1 - 16
1 - 16
Default 
Changed
Note
Number
0 - 127 0 - 127
0 - 127*1True voice
After 
Touch
Control
Change
X
X
X
O
Pitch Bender
XO
Key’s
Ch’s
Velocity
O
 9nH v = 1 - 127
O
 8nH v = 0 - 127
O
 9nH v = 1 - 127
X
 9nH v = 0, 
O
 8nH v = 0 - 127
Note ON
Note OFF
Mode
Mode 3
X
Mode 3
X
Default
Messages
Altered
0, 32
1
5
6, 38
7
10
11
16
17
18
19
64
65
66
67
Bank select
Modulation
Portamento Time
Data entry LSB, MSB*2
Volume
Pan
Expression
DSP Parameter0*2
DSP Parameter1*2
DSP Parameter2*2
DSP Parameter3*2
Damper
Portamento Switch
Sostenuto
Soft pedal
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
X
O
X
X
X
X
X
X
O
X
O
O
Model PX-850 Version : 1.0
*1 : Depends on tone
*1 : Depende del tono
MIDI Implementation Chart

Program
Change
OO
0 - 127:True #
System Exclusive
OO
System 
Common
X
X
X
X
X
X
: Song Pos
: Song Sel
: Tune
Aux 
Messages
Remarks
X
O
X
X
X
O
O
X
: Local ON/OFF
: All notes OFF
: Active Sense
: Reset
System 
Real Time
O
O
X
X
: Clock
: Commands
76
77
78
80
81
82
83
84
88
91
93
100, 101
120
121
Vibrato rate
Vibrato depth
Vibrato delay
DSP Parameter4*2
DSP Parameter5*2
DSP Parameter6*2
DSP Parameter7*2
Portamento Control
High resolution velocity prefix
Reverb send
Chorus send
RPN LSB, MSB*2
All sound off
Reset all controller
Mode 1 : OMNI ON, POLY 
Mode 3 : OMNI OFF, POLY
Mode 2 : OMNI ON, MONO 
Mode 4 : OMNI OFF, MONO
O  :  Yes
X  :  No
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
X
X
X
X
X
X
X
O
X
O
X
X
O
*2
*2: For details, see MIDI Implementation at http://world.casio.com/.
*2: Si desea más información, vea Implementación MIDI en http://world.casio.com/.

This recycle mark indicates that the packaging conforms to 
the environmental protection legislation in Germany.
Esta marca de reciclaje indica que el empaquetado se 
ajusta a la legislación de protección ambiental en Alemania.
MA1207-B  Printed in China
C