Casio Privia PX-870 88-Console Piano with Built-In Speakers (Black) User Manual

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USER’S GUIDE

■

To play back a recorded performance

Press the

MIDI REC

button once or twice (Until the

MIDI REC lamp is lit.)

This enters playback standby.

Hold down the

FUNCTION

button and press the

button once or twice until the lamp of the track

to be played back is lit.

• To play back both tracks, make sure that both the L

and R lamps are lit.

Press the

button.

This starts playback.

• To stop playback, press the

button.

■

To play back from one track as you record to
another track

Press the

MIDI REC

button once or twice (Until the

MIDI REC lamp is lit.)

This enters playback standby.

Hold down the

FUNCTION

button and press the

button once or twice until the lamp of the track

to be played back is lit.

Press the

MIDI REC

button so the MIDI REC lamp is

flashing.

This enters record standby.

Hold down the

FUNCTION

button and press the

button once or twice until the lamp of the track

to be recorded is flashing.

Press the

button or start playing.

This starts recording and playback.

• If you want to re-record from the beginning, hold

down the

MIDI REC

button until the Digital Piano

beeps.

• To stop playback and recording, press the

button.

■

To delete a recorded performance

IMPORTANT!

• A track delete operation cannot be undone. Deleted

data is unrecoverable.

Press the

MIDI REC

button once or twice so the

MIDI REC lamp is flashing.

Hold down the

FUNCTION

button and press the

button once or twice until the lamp of the track

to be deleted is flashing.

Hold down

MIDI REC

until the MIDI REC lamp is lit.

This enters delete standby.

Hold down the

FUNCTION

button and press the

button.

This deletes the contents of the selected track.

• To exit the above operation at any point, press the

MIDI REC

button once or twice so the MIDI REC

lamp is unlit.

Hall simulation makes it possible to simulate the rich clarity,
unconstrained brilliance, and other distinctive acoustic
characteristics of world-famous concert halls.

Hold down the

FUNCTION

button and press Hall

Simulator key of the simulation to be applied.

Each press of the

REVERB

button toggles reverb

between on and off.

Reverb is applied when it is turned on.

■

To select the reverb type

While holding down the

FUNCTION

button, press

the keyboard key of the reverb type to be applied.

1: Room
2: Small hall
3: Large hall
4: Stadium

Applying Hall Simulation (PX-870)

Name

Description

DUTCH CHURCH

Amsterdam church with acoustics
that are suitable for music

STANDARD HALL

Standard concert hall

BERLIN HALL

Berlin arena type classic concert
hall

FRENCH
CATHEDRAL

Large Gothic cathedral in Paris

Applying Reverb (PX-770)

You can record your performances as audio files to a USB
flash drive and play them back when you want.
Anything played on the Digital Piano is recorded to the USB
flash drive as audio data (WAV file

Linear PCM, 16bit, 44.1 kHz, Stereo

Bottom

■

Recording Capacity

• 99 files (TAKE01.WAV to TAKE99.WAV)
• Approximately 25 minutes maximum recording per file.

■

Recorded Data

• Everything played on the Digital Piano
• 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.

■

To record keyboard play

Insert the USB flash drive into the USB flash drive
port.

• When you plug in a USB flash drive, the Digital

Piano performs a mounting sequence to prepare for
data exchange with the USB flash drive. The L and
R lamps flash and Digital Piano operations are
temporarily disabled during the mounting sequence.

• It may take up to 10 or 20 seconds or even longer

for USB flash drive mounting to finish. Do not
perform any operation on the Digital Piano mounting
is in progress.

• A USB flash drive needs to be mounted each time it

is connected to the Digital Piano.

Press the

AUDIO REC

button once or twice so the

AUDIO REC lamp is flashing.

This enters record standby.

To start recording, press the

button or start

playing.

This starts recording to the USB flash drive.

• Recording can also be started by pressing a pedal

or performing another operation.

• If, while recording is in progress, you want to re-

record from the beginning, hold down the

AUDIO

REC

button until the Digital Piano beeps. This

discards the current recording data and enters
recording standby.

• To stop recording, press the

button or

AUDIO

REC

button.

To record more, perform the above procedure from
step 2.

IMPORTANT!

• Do not remove the USB flash drive from the USB

flash drive port while the AUDIO REC lamp is
flashing. Doing so interrupts recording and may
corrupt data.

• A yellow flashing

METRONOME

button lamp

indicates an error. For more information, see “Error
Indicators (PX-870)” on this page of these
instructions.

Using the Audio Recorder
(PX-870)

USB flash drive port (PX-870)

USB Port

■

To play back data recorded on a USB flash
drive

Press the

AUDIO REC

button once or twice so the

AUDIO REC lamp is lit.

This enters playback standby.

Select the song you want to play back.

If you want to play back the last file you recorded, jump
directly to step 3.

●

To select the previous song

Hold down the

FUNCTION

button and press the Select

Music Library Song minus (–) key.
Each press scrolls back one song.

●

To scroll in file number sequence

Hold down the

FUNCTION

button and press the Select

Music Library Song plus (+) key.
Each press scrolls forward one song.

●

To specify a file number

Use the Select Music Library Song number keys (0
through 9) to specify the file number (1 to 99) you want.
(TAKE01.WAV, TAKE02.WAV, etc.)
The Digital Piano beeps if a file with the specified
number does not exist.

To start playback, press the

button.

• To stop song play, press the

button.

■

To delete an audio file from a USB flash drive

Files can be deleted one at a time.

IMPORTANT!

• Note that the file (recorded data) delete operation

cannot be undone.

Press the

AUDIO REC

button once or twice so the

AUDIO REC lamp is lit.

This enters playback standby.

Select the song you want to delete.

If you want to delete the last file you recorded, jump
directly to step 3.

●

To select the previous song

Hold down the

FUNCTION

button and press the Select

Music Library Song minus (–) key.
Each press scrolls back one song.

●

To scroll in file number sequence

Hold down the

FUNCTION

button and press the Select

Music Library Song plus (+) key.
Each press scrolls forward one song.

●

To specify a file number

Press the

AUDIO REC

button so the AUDIO REC

lamp is flashing.

Hold down the

AUDIO REC

button until the AUDIO

REC lamp lights.

This enters delete standby, which is indicated by the L
and R lamps flashing.

Hold down the

FUNCTION

button and press the

button.

This deletes the file and enters audio recorder playback
standby.

• To exit the above operation at any point, press the

AUDIO REC

button once or twice so the AUDIO

REC lamp is unlit.

NOTE

• The file number of the file you delete remains unused

(remaining files are not renumbered). Recording a new
file causes the file number that comes after the last file
recorded to the USB flash drive to be assigned to the new
file.

The information below shows how the lamps indicate the error type by flashing or lighting when an error occurs due to data
transfer failure or some other reason.

Error Indicators (PX-870)

Lamps

Error Type

Cause

Action

No Media

1. The USB flash drive is not

connected to the 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. Write-enable the USB flash

drive.

4. The USB flash drive is

protected by anti-virus
software.

4. Use a USB flash drive that

is not protected by 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 appropriate location in
the “MUSICLIB” or “AUDIO”
folder.
For information about folders,
refer to the “User’s Guide
(Full)”.

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 files from the USB
flash drive to make room for
new data 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 from

the “AUDIO” folder.

Wrong Data

1. The USB flash drive data is

corrupted.

–

2. USB flash drive contains

data that is not supported
by this Digital Piano.

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. USB flash drive memory is

corrupted.

2. Use a different USB flash

drive.

Media R/W

USB flash drive memory is
corrupted.

Use a different USB flash drive.

Troubleshooting

If this happens:

Do this:

No sound is produced when I
press a keyboard key.

1. Rotate the

VOLUME

knob more towards “MAX”.

2. Disconnect whatever is connected to the

PHONES/OUTPUT

jack.

3. Turn on the Local Control setting. For details, refer to the “User’s Guide (Full)”.

The pitch of the Digital Piano
is off.

1. Change the transpose setting to “0”. Or turn power off and then back on.
2. Change the tuning setting to 440.0 Hz. Or turn power off and then back on.
3. Change the octave shift setting to “0”. For details, refer to the “User’s Guide (Full)”.
4. Change the temperament setting to “00: Equal”.

Nothing happens when I press
a pedal.

Check the orientation of the pedal unit plug and makes sure it is inserted as far as it goes.
For the correct plug orientation, see “To connect the cables” under “Assembling the
Stand” of page 4/4 of these instructions.

Tones and/or effects sound
strange. Turning power off and
then back on again does not
eliminate the problem.
Example: No change in

intensity when key press
pressure (touch) is changed

Turn off Auto Resume, and then turn power off and then back on again. For details, refer
to the “User’s Guide (Full)”.

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. There may be a very slight difference 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 while 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 causes the effect setting that is built into the tone to change
automatically, which causes notes to cut out momentarily or a slight change in how
effects are applied. It does not indicate malfunction

I need to reset all Digital Piano
data and settings to their
initial defaults.

Hold down the

FUNCTION

MIDI REC

and

E.PIANO1

buttons, and press the power

button to turn on power.

I need to reset a specific
setting to its initial default.

Hold down the

FUNCTION

button and press the + and – keyboard keys of the setting at

the same time.

Lamps

Error Type

Cause

Action

Product Specifications

Model

PX-870BK/PX-870BN/PX-870WE

PX-770BK/PX-770BN/PX-770WE

Keyboard

88-key piano keyboard, with Touch Response

Maximum Polyphony

256 notes

128 notes

Tone

19 types
• Layer (excluding bass tones)

Acoustic Simulator

Damper Resonance (Damper Noise on/off),
Hammer Response, String Resonance, Lid
Simulator, Key Off Simulator, Key On Action
Noise, Key Off Action Noise

Damper Resonance (Damper Noise on/off),
Hammer Response

Effects

Brilliance (–3 to 0 to 3), Hall Simulator (4 types),
Chorus (4 types), DSP, Head Phone Mode,
Volume Sync Equalizer

Brilliance (–3 to 0 to 3), Reverb (4 types),
Chorus (4 types), DSP

Metronome

• Beats: 0 to 9
• Tempo range: 20 to 255

Duet Mode

Adjustable tone range (–2 to 2 octaves)

Concert Play

• Songs: 10
• Song volume: Adjustable
• Part On/Off: L, R (Lesson Mode only)
• 3 Modes: LISTEN, LESSON, PLAY

Music Library

• Songs: 60; 10 download songs (Up to

approximately 90 KB per song, up to
approximately 900 KB/10 songs total)

Based on 1 KB = 1024 bytes

• Song volume: Adjustable
• Part On/Off: L, R

• Songs: 60; 10 download songs (Up to

approximately 90 KB per song, up to
approximately 900 KB/10 songs total)

Based on 1 KB = 1024 bytes

• Song volume: Adjustable
• Part On/Off: L, R

Recorder

MIDI Recorder
• Modes: Real-time recording, playback
• Songs: 1
• Tracks: 2
• Capacity: Approximately 5,000 notes total
• Recording storage: Built-in flash memory
Audio Recorder
• USB flash drive real-time recording and

playback; Linear PCM, 16bit, 44.1 kHz, stereo
.WAV format

• Songs: 99 files
• Approximately 25 minutes maximum

recording per file.

• Audio file volume: Adjustable

MIDI Recorder
• Modes: Real-time recording, playback
• Songs: 1
• Tracks: 2
• Capacity: Approximately 5,000 notes total
• Recording storage: Built-in flash memory

Pedals

Damper (seamless half-pedal support),
sostenuto, soft

Damper (half-pedal supported), sostenuto, soft

Other Functions

• Touch Response: 3 levels, Off
• Transpose: 2 octaves (–12 to 0 to +12)
• Tuning: 415.5 Hz to 440.0 Hz to 465.9 Hz (0.1

Hz steps)

• Temperament: Equal + 16 other types
• Octave Shift: 4 octaves (–2 to 0 to +2)
• Panel Lock

• Touch Response: 3 levels, Off
• Transpose: 2 octaves (–12 to 0 to +12)
• Tuning: 415.5 Hz to 440.0 Hz to 465.9 Hz (0.1

Hz steps)

• Temperament: Equal + 16 other types
• Octave Shift: 4 octaves (–2 to 0 to +2)
• Panel Lock

MIDI

16-channel multi-timbre receive

USB Memory

• Supported capacity: 32 GB or less

recommended

• Functions: SMF playback, recorded song

storage, song data import, formatting, audio
data playback and storage

–

• Specifications and designs are subject to change without notice.

Your Digital Piano can connect with a smartphone, tablet, or other smart device. A special app is available to display music
scores and a piano roll display to support your practice.

Go to the website below to download the app and install it on your smart device.
http://web.casio.com/app/en/

Input/Output Terminals

• PHONES/OUTPUT jacks: Stereo standard

jacks × 2

• AC Adaptor Terminal: 24 VDC
• USB port: Type B
• USB flash drive port: Type A
• Pedal connector

• PHONES/OUTPUT jacks: Stereo standard

jacks × 2

• AC Adaptor Terminal: 12 VDC
• USB port: Type B
• Pedal connector

Speakers

12cm × 2 +

4cm × 2 (Output: 20W + 20W)

12 cm × 2 (Output: 8W + 8W)

Power Requirements

AC adaptor: AD-E24250LW
• Auto Power Off: Approximately 4 hours; Can

be disabled.

AC adaptor: AD-A12150LW
• Auto Power Off: Approximately 4 hours; Can

be disabled.

Power Consumption

24V

20W

12V

18W

Dimensions

Piano and Stand: 139.3(W) × 29.9(D) × 80.1(H)
cm (54 7/8 Ч 11 3/4 Ч 31 9/16 inches)

Piano and Stand: 139.1(W) × 29.9(D) × 79.8(H)
cm (54 13/16 Ч 11 3/4 Ч 31 7/16 inches)

Weight

Piano and Stand: Approximately 34.3 kg (75.6
lbs)

Piano and Stand: Approximately 31.5 kg (69.4
lbs)

Linking with an Application (APP Function)

Downloading the Special App

Included Accessories

●

AC adaptor

●

Power cord

●

Music Stand

●

Leaflets

• Safety Precautions
• Other (Warranty, etc.)

Items included as accessories are subject to change
without notice.

Separately Available Accessories

• You can get information about accessories that are

separately for this product from the CASIO catalog
available from your retailer, and from the CASIO
website at the URL below.

http://world.casio.com/

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