Introduction

The Casio 61-Key Portable Keyboard CT-X8000IN is a versatile instrument designed for musicians of all skill levels, featuring an advanced AiX sound source that delivers rich and expressive tones. Launched in 2019, this keyboard is manufactured by Casio, a well-known brand in the music industry. Priced at approximately $225, the CT-X8000IN offers 800 tones, including 43 Indian tones, and 250 rhythms, making it ideal for a variety of musical styles and educational purposes.

Specifications

Model	CT-X9000IN	CT-X8000IN
Keyboard Touch Response	61 standard size keys Sensitivity: 3 types, Off
Maximum Polyphony	64 notes (32 for certain tones)
Tones
Preset Tones	800
User Tones	100 (See “Tone Editing” item of these specifications.)
Other	Layer, split (configurable split point, lower point, chord point settings)
System Effects
Reverb	32 types, Off	24 types, Off
Chorus	16 types, Tones	12 types, Tones
Delay DSP	20 types, Tones 100 types*1, DSP tones	15 types, Tones 100 types*1, DSP tones
Master Effects	Equalizer (10 presets) 4-band User Equalizer	Equalizer (10 presets)
External Input Effects	Center cancel (vocal cut) for input from the Audio In jack
Metronome Beat Tempo	0 (accented tone off), 1 to 16 Tempo value: 20 to 255
Demo Songs	3
Song Bank
Built-in Songs	30
User-recorded Songs	10 (See the “MIDI Recorder” item of these specifications.)
USB Memory Songs	Playback of standard MIDI files (SMF format 0/1), CASIO MIDI files (CMF format) on a USB flash drive is supported.
USB Audio Playback Supported File Formats Other Functions	Playback of audio files on a USB flash drive is supported. WAV format, 44.1 kHz 16 bit Center Cancel (Vocal Cut)
Auto Accompaniment
Built-in Rhythms	250	250
User Rhythms	100 (See the “Rhythm Editing” item of these specifications.)	50 (See the “Rhythm Editing” item of these specifications.)
One Touch Presets	250	250
Music Presets	310 (With chord progressions)
Phrase Pads
Number of Pads	4
User Phrases	100 (4 phrases × 25 pads)
Memory Capacity	Approximately 1,000 notes (per phrase)
Editing Mode	Copy, delete, phrase editing
Mixer function Affected Parts Parameters	Sound source parts, microphone input part Part on/off, volume, pan, reverb send, chorus send, delay send
Registration	Maximum 128 setups (8 setups × 16 banks), registration sequence
Tone Editing	Preset tone editing, DSP editing Memory for storage of edited tones (up to 100)
Rhythm Editing	New rhythm creation, rhythm editing Memory for storage of created/edited rhythms (CT-X9000IN: Up to 100, CT-X8000IN: Up to 50)

MIDI Recorder	Real-time recording, playback
Keyboard Performance Recording	10 songs, 17 tracks (1 system track, 16 solo tracks)
Memory Capacity	Approximately 40,000 notes (per song)
Editing Mode	Song editing, track editing, event editing, step input
Other Functions	Overdubbing, punch-in recording
Pedals	Sustain, sostenuto, soft, rhythm/song, expression
Controllers	Pitch bend wheel, TOUCH ON/OFF button, PORTAMENTO button, MODULATION/ ASSIGNABLE button	Pitch bend wheel, TOUCH ON/OFF button, PORTAMENTO button
Other Functions
Transpose	±1 octaves (–12 to 0 to +12 semitones)
Octave Shift	Upper 1/Upper 2/Lower 1/Lower 2, ±3 octaves
Tuning	A4 = 415.5 to 465.9 Hz (Initial Default: 440.0 Hz)
Part coarse tune	For each keyboard part, ±2 octaves (–24 to 0 to +24 semitones)
Part fine tune	For each keyboard part, ±99 cents
Scales	17 preset scales, scale fine tuning
Auto Harmonize	12 types
Arpeggiator	150 types
MIDI	16ch multi-timbre received, GM Level 1 standard
Inputs/Outputs
USB Flash Drive Port	Type A
USB Port	Type B
Pedal 1 Jack	Standard jack (6.3 mm)
Pedal 2, Expression Jack	Standard jack (6.3 mm)
Headphones Jack	Stereo standard jack (6.3 mm)
Audio Input Jack	Stereo mini jack (3.5 mm) Input impedance: 9 kΩ; Input sensitivity; 200 mV
Line Out Jack (CT-X9000IN)	Standard jacks (6.3 mm) × 2 Output impedance: 2.3 kΩ; Output voltage: 1.9 V (RMS) MAX
Microphone Input Jack (CT-X9000IN)	Standard jack (6.3 mm) (Connect a dynamic microphone.) Input impedance: 3 kΩ; Input sensitivity; 10 mV
Power Jack	DC 24V	DC 12V
Power Supply	AC adaptor only	2-way
AC Adaptor	AD-E24250LW	AD-A12150LW
Batteries	–	6 D-size alkaline batteries
Battery Life	–	Approximately 10 hours continuous operation on alkaline batteries
Auto Power Off	Approximately 30 minutes after last operation; Can be disabled.	Approximately 30 minutes after last operation; Can be disabled.
Speakers	10cm× 2 (Output: 15W + 15W)	10cm× 2 (Output: 6W + 6W)
Power Consumption	24V = 15 W	12V = 8 W
Dimensions	94.8 × 38.4 × 11.6 cm (37 5/16 × 15 1/8 × 4 9/16 inch)
Weight	Approximately 7.0 kg (15.4 lbs)	Approximately 6.9 kg (15.2 lbs) (without batteries)

General Guide

All of the illustrations in this manual show the Casio CT-X8000IN.

Some of the button names shown here include the mark. This indicates that you need to long-press the button to perform its operation.

This manual uses the numbers and names below to refer to buttons, keys, and controllers.

(Power) button
VOLUME knob
Display
CATEGORY button
TONE button
RHYTHM button
SONG BANK, AUDIO button
RECORD/STOP, AUDIO PLAY/STOP button
PART, MIXER button
FUNCTION, SET, EDIT button
Dial
Number keys
[–], [+] keys
INTRO, PART SELECT button
VARIATION/FILL-IN 1, REPEAT button
VARIATION/FILL-IN 2, A-B button
VARIATION/FILL-IN 3, REW button
VARIATION/FILL-IN 4, FF button
ENDING/SYNCHRO START, PAUSE button
START/STOP, PLAY/STOP button
SYNCHRO STOP button
ACCOMP, MUSIC PRESET button
FREEZE button
BANK button
STORE button
PHRASE PAD buttons
STOP button
REGISTRATION buttons
METRONOME, BEAT button
TEMPO buttons
TAP TEMPO button
PORTAMENTO button
TOUCH ON/OFF, SENSITIVITY button
AUTO HARMONIZE/ARPEGGIATOR, TYPE button
SPLIT, SPLIT POINT button
UPPER LAYER, LOWER LAYER button
OCTAVE button
TRANSPOSE buttons
MODULATION/ASSIGNABLE button (CT-X9000IN only)
PITCH BEND wheel
CHORD root names
Percussion instrument list (CT-X9000IN only)
TONE GROUP SELECT button
TONE Category buttons
RHYTHM GROUP SELECT button
RHYTHM Category buttons
Back
USB flash drive port
USB port
BACK
LINE OUT R, L/MONO jacks (CT-X9000IN only)
PHONES jack PHONES/OUTPUT jack (CT-X8000IN)
MIC IN jack (CT-X9000IN only)
MIC VOLUME knob (CT-X9000IN only)
AUDIO IN jack
PEDAL1 jack
PEDAL2/EXPRESSION jack
DC 12V terminal (CT-X8000IN)

Note: In this manual, the PHONES/OUTPUT jack on the CT-X8000IN is referred to as the PHONES jack.

In this manual, this jack is referred to as the fk PHONES jack.

Display

Tone indicator
Rhythm indicator
Song Bank indicator
Music Preset indicator
Number/setting value display (left), name display (right)
Tempo, measure, beat
Keyboard part indicators
Chord name
Auto Accompaniment indicators
Mixer info display area
Registration display, event edit display
Other Indicators

Preparing the Music Stand

Returning the Digital Keyboard to Its Factory Default Settings

There are two ways to reset the Digital Keyboard to its default settings: a “setting reset” that initializes settings only without deleting data, and a “factory reset” that initializes settings and deletes all data, returning the Digital Keyboard to the state it was in when it left the factory.

Preparing a Power Supply

Your Digital Keyboard uses an AC adaptor for power.

Using the AC Adaptor

Make sure that you use only the AC adaptor specified for this Digital Keyboard. Use of a different type of AC adaptor can cause malfunction.

Connecting the AC Adaptor

Specified AC Adaptor: AD-E24250LW (JEITA Standard plug)

Important

Never connect the AC adaptor (JEITA Standard, with unified polarity plug) that comes with this Digital Keyboard to any other device besides this Digital Keyboard. Doing so creates the risk of malfunction.
Be sure to turn off Digital Keyboard power before connecting or disconnecting the AC adaptor.
The AC adaptor will become warm to the touch after very long use. This is normal and does not indicate malfunction.
Note the following important precautions to avoid damage to the power cord.

During Use

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.

During Movement

Before moving the Digital Keyboard, be sure to unplug the AC adaptor from the power outlet.

During Storage

Loop and bundle the power cord, but never wind it around the AC adaptor.
Never insert metal, pencils, or any other objects into the product’s DC12V (CT-X8000IN) terminal. Doing so creates the risk of accident.
Do not try to use the power cord that comes with the product with another device.
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.
Plug the AC adaptor into a power outlet that is close to the Digital Keyboard. This lets you immediately unplug from the power outlet should any problem occur.
The AC adaptor is intended for indoor use only. Do not leave it in a location where it can become wet. Also, do not place a vase or any other container of liquid on the AC adaptor.
Make sure that the AC adaptor does not become covered with a newspaper, table cloth, curtain, or any other type of fabric.
If you do not plan to use the Digital Keyboard for a long time, unplug the AC adaptor from the power outlet.
The AC adaptor cannot be repaired. If your AC adaptor malfunctions or becomes damaged, you need to purchase a new one.
AC Adaptor Usage Environment
- Temperature: 0 to 40°C
- Humidify: 10% to 90%RH
- Output Polarity: &

Adjusting Display Contrast

Press
Press the number key to display “Other”.
Press the number key.
Use the and number keys to display “Contrast”.
Use [–] and [+] or the dial to change the setting value.
When the setting is the way you want, long-press the (EXIT) 12 number key to exit the setting screen.

Connecting to Audio Equipment

Digital Keyboard Audio Output

Your Digital Keyboard outputs audio from its built-in speakers and/or the PHONES jack. (CT-X9000IN: Also outputs audio from the LINE OUT jacks.)

There will be an indicator mark next to [SPEAKER] while built-in speaker output is enabled.

There will be no indicator mark next to [SPEAKER] while built-in speaker output is disabled.
- Built-in speaker output is disabled in the cases described below.
  - When there is a plug in the PHONES jack.*
  - When the following setting is disabled (Off): Speakers
- (Speaker) 3 Speaker on/off (Enabled) (page EN-112).
The Digital Keyboard automatically adjusts the sound to make it suitable for headphones (or, in the case of the CT-X9000IN, the LINE OUT jacks) while speaker output is disabled, and for speakers while speaker output is enabled.

When the following setting is disabled (Off): Speakers (Speaker) 3 Enabled when PHONES connected (PhoneSpk)

IMPORTANT

If there is no sound output even though there is an indicator mark next to [SPEAKER], check the current settings of the 2 VOLUME knob and/or volume related settings.
To enable and disable speaker output

Perform the procedure under “To configure function settings with the button” and configure the following setting: Speakers (Speaker) 3 Speaker on/off (Enabled)

To output from the speakers while headphones are connected

Perform the procedure under “To configure function settings with the button” and enable the following setting: Speakers (Speaker) 3 Enabled when PHONES connected (PhoneSpk). This will leave speaker output enabled even if there is a plug in the phone jack.

Using Headphones

Using headphones normally cuts off* output from the built-in speakers, which means you can practice playing even late at night without disturbing others.

When the following setting is disabled (Off): Speakers (Speaker) 3 Enabled when PHONES connected (PhoneSpk)

IMPORTANT

Before connecting headphones, be sure to use 2 VOLUME to turn the volume down to a low level. After connecting, you can adjust the volume to the level you want.
Do not listen to very high volume output over headphones for long period. Doing so creates the risk of hearing damage.
If you are using headphones that require an adaptor plug, make sure you do not leave the adaptor plugged in when removing the headphones.

NOTE

Headphones do not come with the Digital Keyboard. Use commercially available headphones.

Outputting Keyboard Notes to Audio Equipment

You can connect audio equipment or a music amplifier to the Digital Keyboard and then play through external speakers for more powerful volume and better sound quality.

Turn off the external device when making connections. After connecting, turn down the Digital Keyboard and external device volume levels whenever turning power on or off.
After connecting, turn on the Digital Keyboard and then the external device.
If keyboard notes sound distorted when they are sounded from external audio equipment, lower the Digital Keyboard’s volume setting.

To connect an external device to the Digital Keyboard’s PHONES jack

Connection requires commercially available connecting cords, supplied by you.

The connecting cords should have a stereo standard plug on one end and a plug that matches the configuration of the external device on the other end.

50 PHONES jack (Stereo standard jack (6.3mm)

To connect an external device to the Digital Keyboard’s LINE OUT jacks

Connection requires commercially available connecting cords, supplied by you.

to_connect_an_external_device_to_the_digital_keyboardâs_line_out_jacks.png

Connecting to Audio Equipment (Figure 1)

Use commercially available cables to connect the external audio equipment to the Digital Keyboard’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 Digital Keyboard is connected.

Connecting to a Musical Instrument Amplifier (Figure 2)

Use commercially available cables to connect the amplifier to the Digital Keyboard’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 a connecting cable like the one shown in the illustration for connection of the amplifier.

Description

The Casio CT-X8000IN boasts a sleek and durable design, making it easy to transport to gigs or practice sessions. The keyboard features a backlit LCD display that provides clear visibility of the various functions and settings. With its intuitive layout, users can quickly navigate through the extensive library of sounds and rhythms.

The keyboard also includes a built-in lesson system, which is particularly useful for beginners. This feature allows users to practice along with built-in songs and exercises, helping to improve their skills.

Configuring Function Settings

Use the procedures in this section to configure master Digital Keyboard settings. The procedure uses the button.

IMPORTANT

When power is turned off by pressing 1 (power) or by triggering of Auto Power Off (page EN-9) while Auto Resume (page EN-10) is turned off, all settings, except for those below, are returned to their initial defaults. Equalizer, Tuning, Registration Memory Freeze Target, Pedal 2 type, Expression pedal calibration, Tap rhythm start, Examination Mode, Display contrast

To configure function settings with the button

Press .
This displays the [FUNCTION] indicator and the main menu item.
The display shown here is one example for explanatory purposes. The actual display that appears when you press is different.
Use the [1] () and [3] () 12 number keys to display the menu item you want to change.
- If the [ENTER] 12 indicator is displayed, execute the steps below. If it is not displayed, advance to step 3.
  1. Press the [6] (ENTER) bm number key. This changes to the sub-menu item display.
  2. Use the [1] () and [3] () keys to display the sub-menu for the changes you want to make.
- After the sub-menu item appears, advance to step 3.
- To return to a main menu item from a sub-menu item, press the [4] (EXIT) 12 number key.
- If the [ENTER] indicator is displayed while a sub-menu item is displayed, it means there is another sub-menu under the currently displayed one. In this case, repeat steps (1) and (2).
Use 13 [–] and [+] or the 11 dial to change the setting value.
- Pressing the [0] (NUM) 12 number key displays the [NUM] indicator, indicating that numeric input with the 12 number keys is enabled (page EN-14). However, a setting item that inputs a value with a decimal part, only the integer part can be input using the 12 number keys. The decimal part must be specified using 13 [–] and [+] or the 11 dial.
When the setting is the way you want, long-press the [4] (EXIT) 12 number key to exit the setting screen. This causes the [FUNCTION] indicator to disappear.

Setup Guide

To set up the Casio CT-X8000IN,

Start by unpacking the keyboard and its accessories.
Connect the power adapter or insert batteries as per your preference.
Plug in any external devices such as headphones or a MIDI interface if needed.
Turn on the keyboard and follow the on-screen instructions to select your preferred language and other initial settings.
You can then explore the various modes and functions by using the navigation buttons and the LCD display.

Connecting a Computer

You can connect the Digital Keyboard to a computer and exchange MIDI data between them. You can send play data from the Digital Keyboard to music software running on your computer, or you can send MIDI data from your computer to the Digital Keyboard for playback.

Minimum Computer System Requirements

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 Keyboard to it.

Operating System

Windows Vista *1
Windows 7 *2
Windows 8.1 *3
Windows 10 *4

macOS (OS X/Mac OS X) 10.7, 10.8, 10.9, 10.10, 10.11, 10.12

Windows Vista (32-bit)
Windows 7 (32-bit, 64-bit)
Windows 8.1 (32-bit, 64-bit)
Windows 10 (32-bit, 64-bit)

USB port

IMPORTANT: Never connect to a computer that does not conform to the above requirements. Doing so can cause problems with your computer.

NOTE: For the latest news about supported operating systems, visit the website at the URL below. http://world.casio.com/

Connecting the Digital Keyboard to Your Computer

IMPORTANT: Make sure you follow the steps of the procedure below exactly. Connecting incorrectly can make data send and receive impossible.

Turn off the Digital Keyboard and then start up your computer.
Do not start up the music software on your computer yet!
After starting up your computer, use a commercially available USB cable to connect it to the Digital Keyboard.
Use a USB 2.0 or 1.1 A-B connector-type USB cable.
Turn on the Digital Keyboard.
If this is the first time you are connecting the Digital Keyboard to your computer, the driver software required to send and receive data will be installed on your computer automatically.
Start up commercially available music software on your computer.
Configure the music software settings to select “CASIO USB-MIDI” 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 Keyboard first before starting up your computer’s music software.
USB send and receive is disabled during playback of a Song Bank song.

MIDI Settings

Keyboard Channel

This parameter specifies the channel to be used when keyboard performance information is sent from this Digital Keyboard to a computer.
Perform the procedure under “To configure function settings with the button and configure the following setting: Keyboard Channel (Keybd Ch).

Local Control

This parameter can be used when using an external sound source to play Digital Keyboard notes to specify that the notes should not be sounded by the Digital Keyboard.
Perform the procedure under “To configure function settings with the action button and configure the following setting: Local Control (Local).

Accomp Out

This parameter specifies whether or not Auto Accompaniment data should be sent.
Perform the procedure under “To configure function settings with the button and configure the following setting: Accomp Out (AcompOut).

Transferring Data Between the Digital Keyboard and a Computer

You can transfer recorded songs, and other data in Digital Keyboard memory to a computer for storage. You also can load the Auto Accompaniment data you download from the CASIO website to the Digital Keyboard, which greatly expands Auto Accompaniment patterns available to you. A special Data Manager application is required in order to transfer data to and from the Digital Keyboard.

Data Types Supported for Data Transfer

You can transfer the types of data listed below between the Digital Keyboard and a computer.

Downloading Data Manager

Go to the CASIO WORLDWIDE site at the following URL. http://world.casio.com/
At the site, select a geographic area or country.
After accessing the area site, navigate to the minimum computer system requirements for the Data Manager for this product.
You should be able to find a link to Data Manager information on the product introduction page of this product. If you cannot find such a link, use the search form of the area site where you are located to enter the model name of this product and search for it.
Note that site contents are subject to change without notice.
Check if your computer system complies with the minimum requirements for Data Manager.
Download Data Manager and its user’s guide to your computer.
Follow the procedure in the user’s guide that you downloaded in step 5 to install and use Data Manager.
You can download accompaniment data from the Internet Data Expansion system of the CASIO MUSIC SITE http://music.casio.com/ and load it into the memory of this Digital Keyboard. Note that there is no accompaniment data intended specifically for this model, so you should use data for other models.

NOTE

Since the accompaniment data is for other models, you may experience some abnormalities when playing it on this model.
For information about accompaniment data compatibility between models, see the Data Manager user’s guide you download in step 5 of the above procedure.

Troubleshooting

	Symptom	Action
Included Accessories
	I can’t find something that should be here.	Carefully check inside all of the packing materials.
Power Requirements
	Power will not turned on.	Check the AC adaptor (page EN-8). CT-X8000IN: Make sure that the batteries are facing correctly (page EN-9). Replacethe batteries with new ones (page EN-9)or switch over to AC adaptor power (page EN-8).
	The display lightsup momentarily butpower does not turnon when I press the 1P (power) button.	Press 1P (power) firmly and completely to turn on power.
	The Digital Keyboard outputs a loud sound and then suddenly powers down.	CT-X8000IN: Replace the batteries with new ones (page EN-9) or switch over to AC adaptor power (page EN-8).
	The Digital Keyboard suddenly powers down after about 30 minutes.	This happens when Auto Power Off (page EN-9) is triggered.
Display
	The display keeps going out or are flashing.	CT-X8000IN: Replace the batteries with new ones (page EN-9) or switch over to AC adaptor power (page EN-8).
	Screen contents are visible only from straight ahead.	This is dues to production limitations. It does not indicate malfunction.
Sound
	Nothing happens when I press any keyboard key.	Adjust the volume setting (page EN-11). Check if something is plugged into fk on the back of the Digital Keyboard. Turn power off and thenback on to initialize all keyboard settings (page EN-9).
	Nothing happensor notes do not play normally when I play notes on the left side of the keyboard.	Press cm to disable chord input in the accompaniment keyboard area (page EN-43).
	Nothing happens when I start an Auto Accompaniment.	With rhythms 241 to 250, nothing will sound until you play a chord on the keyboard. Try playing a chord (page EN-47). Check and adjustthe accompaniment volumesetting (page EN-44). If there is no user rhythm stored in memory, Auto Accompaniment will not start when you press ck while a rhythm in the range of 309 to 408 (CT-X9000IN) / 309 to 358 (CT-X8000IN) is selected (page EN-74). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
	Nothing happens when I start playback of a built-in song.	It takes a little timeafter you pressthe button untilthe song startsto play. Wait for a moment for the song to start. Check and adjust the song volume (page EN-39). With song numbers 31 through 40, pressing ck will not start the song if there is no MIDI recorder data stored to the song (page EN-87). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
	The metronome does not sound.	Check and adjust the metronome volume setting (page EN-27). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
	Notes keep sounding, without stopping.	Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9). CT-X8000IN: Replace the batteries with new ones (page EN-9) or switch over to AC adaptor power (page EN-8).

	Symptom	Action
	Some notes are cut off while they are playing.	Notes are cut off whenever the number of notes being sounded exceeds the maximum polyphony value of 64 (32 for some tones). This does not indicate malfunction.
	The volume or tone setting I made has changed.	Adjust the volume setting (page EN-11) and the equalizer setting (page EN-25). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9). CT-X8000IN: Replace the batteries with new ones (page EN-9) or switch over to AC adaptor power (page EN-8).
	Output volume does not change even though I change my keyboard touch.	Change the Touch Response setting (page EN-28). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
	In certain keyboard ranges, the volume and tone quality sound are slightly different from those in other keyboard ranges.	This is due to system limitations. It does not indicate malfunction.
	With some tones, octaves do not change at the far ends of the keyboard.	This is due to system limitations. It does not indicate malfunction.
	The pitch of the notes does not match other accompanying instruments or sounds strange when played long with other instruments.	Check and adjust the transpose (page EN-34), tuning (page EN-36), part coarse tuning and part fine tuning settings (page EN-36). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
	The reverb of notes seems to change suddenly.	Check and adjust the reverb and delay settings (page EN-22). Turn power off and then back on to initialize all Digital Keyboard settings (page EN-9).
Operation
	Tone, rhythm, and other settings revert to their initial defaults whenever you turn on the Digital Keyboard.	Though Digital Keyboard settings reset when you turn off the Digital Keyboard (page EN-9), you can save setups to registration memory for instant recall whenever you need them (page EN-65). If Auto Resume function (page EN-10) is turned on, most settings are saved while power is turned off.
Computer Connection
	I can’t exchange data between the Digital Keyboard and a computer.	Check to make sure that the USB cable is connected to the Digital Keyboard and computer, and that the device is selected correctly with your computer’s music software settings (page EN-119). Turn off the Digital Keyboard and then exit the music software on your computer. Next, turn the Digital Keyboard back on and then restart the music software on your computer.

Error Messages

Display	Cause	Action
Err Limit	You are attempting to record more than 999 measures.	Make your recordings up to 999 measures long.
Err Mem Full	You are attempting a recording that exceeds the allowable per-song limit.	Keep song recordings with the allowable per-song limit.
	You are attempting a recording that exceeds the allowable per-phrase limit.	Keep phrase recordings with the allowable per-phrase limit.
	You are attempting a recording that exceeds the allowable per-user-rhythm limit.	Keep user rhythm recordings with the allowable per- user-rhythm limit.
Err DataFull	You are attempting to record more than 10 songs.	Delete some of the songs in memory.
	You are attempting to store user tones that cause the maximum allowable limit to be exceeded.	Delete unneeded user tones.
	You are attempting to store user rhythms that cause the maximum allowable limit to be exceeded.	Delete unneeded user rhythms.
Err No Media	The USB flash drive is not plugged correctly into the USB flash drive port.	Correctly plug the USB flash drive into the USB flash drive port.
	The USB flash drive was removed while some operation was in progress.	Do not remove the USB flash drive while any operation is in progress.
	The USB flash drive is write-protected.	Write-enable the USB flash drive.
	The USB flash drive is protected by anti-virus software.	Use a USB flash drive that is not protected by anti- virus software.
Err No File	There is no loadable or playable file in the MUSICDAT folder.	Move the file you want to load into the “MUSICDAT” folder or the file you want to play into the “MUSICDAT” folder (page EN-118).
Err No Data	You are selecting a user data item that does not have any data stored to it.	Select a user data item that has data stored to it.
Err ReadOnly	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.
Err MediaFul	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 or use a different USB flash drive.
Err ManyFile	There are too many files on the USB flash drive.	Delete some of the files on the USB flash drive to make room for new data.
Err NotSMF01	You are attempting to play back SMF Format 2 song data.	Playback of SMF Format 0 or Format 1 only is supported.
Err Large Sz	The SMF file on the USB flash drive cannot be played because it is too big	Playback of SMF files up to approximately 320 KB in size is supported.
Err Large Sz	The data you are trying to import cannot be imported because it is too big.	The maximum data size (per data item) when loading data into Digital Keyboard memory is shown below. Rhythms: Approximately 64 KB Phrases: Approximately 8 KB

Err WrongDat	The USB flash drive data is corrupted.	–
Err WrongDat	USB flash drive contains data that is not supported by this Digital Keyboard.	–
Err Format	The USB flash drive format is not compatible with this Digital Keyboard.	Use a computer or other device to change the USB flash drive format to something that is compatible with the Digital Keyboard (page EN-115). Use a different USB flash drive.
Err Format	USB flash drive memory is corrupted.	Use a different USB flash drive.

Casio CT-X8000IN Pros & Cons

Pros

Extensive sound library and rhythms
Portable and lightweight design
User-friendly interface and navigation
Built-in lesson system for beginners
Robust speaker system and external connectivity options

Cons

No touch sensitivity on lower-end models
Limited polyphony for complex compositions
No built-in Wi-Fi or Bluetooth connectivity
Batteries may drain quickly with heavy use

Customer Reviews

Customers have praised the Casio CT-X8000IN for its versatility and value for money. Many have appreciated the wide range of sounds and rhythms, which cater to various musical genres. However, some users have noted that the battery life could be improved and that the lack of touch sensitivity on some models can be a drawback.

Common Complaint

Is the complexity of the menu system, which can take time to get accustomed to. Despite this, the overall feedback has been positive, with many recommending it for both practice and performance use.

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