Why won't my Casio LK-170 Musical Instrument turn on?
- JJessica DennisAug 20, 2025
Check the AC adapter, or ensure the batteries are correctly installed. You can also replace the batteries with new ones or switch to AC adapter power.

Why won't my Casio LK-170 Musical Instrument turn on?
Check the AC adapter, or ensure the batteries are correctly installed. You can also replace the batteries with new ones or switch to AC adapter power.
What to do if nothing happens when I press any key on my Casio Musical Instrument?
First, adjust the main volume setting. Then, check if anything is plugged into the PHONES/OUTPUT jack. Finally, turn the power off and then back on to initialize all settings.
What to do if the display keeps flashing on my Casio Musical Instrument?
Replace the batteries with new ones or switch over to AC adaptor power.
What to do if the volume or tone setting I made has changed on my Casio LK-170 Musical Instrument?
Adjust the main volume setting, or turn the power off and then back on to initialize all settings. Also, try replacing the batteries with new ones or switch over to AC adapter power.
What to do if notes keep sounding without stopping on my Casio LK-170?
Turn the power off and then back on to initialize all settings. Alternatively, replace the batteries with new ones or switch over to AC adapter power.
What to do if nothing happens when I start playback of a built-in song on my Casio LK-170?
Wait a moment after pressing the button for the song to start playing. Check and adjust the song volume. Alternatively, turn the power off and then back on to initialize all settings.
What to do if nothing happens when I start an Auto Accompaniment on my Casio Musical Instrument?
With rhythms 140, and 142 to 150, nothing will sound until you play a chord on the keyboard; try playing a chord. Check and adjust the accompaniment volume setting. Alternatively, turn the power off and then back on to initialize all settings.
What to do if the metronome does not sound on my Casio LK-170 Musical Instrument?
Check and adjust the accompaniment volume setting. Check and adjust the song volume. Alternatively, turn the power off and then back on to initialize all settings.
What to do if I can’t exchange data between my Casio LK-170 and a computer?
Check to ensure that the USB cable is connected to both the Digital Keyboard and the computer, and that the device is correctly selected in your computer’s music software settings. Turn off the Digital Keyboard, then exit the music software on your computer. Next, turn the Digital Keyboard back on and restart the music software.
What to do if on-screen keyboard keys or notes remain on the display of my Casio Musical Instrument?
A Step Up Lesson is in progress, and the Digital Keyboard is waiting for you to play the next note in the song. Cancel the lesson to stop this.
| Keyboard | 61 standard-size keys |
|---|---|
| Touch Response | 2 sensitivity levels, Off |
| Sound Source | AHL |
| Maximum Polyphony | 48 |
| Tones | 400 built-in tones |
| Rhythms/Patterns | 150 built-in rhythms |
| Built-in Songs | 110 |
| Display | LCD |
| Amplifiers | 2.5W + 2.5W |
| Speakers | 10cm x 2 |
| Power Supply | AC adaptor or 6 AA-size batteries |
| Metronome | Yes |
| Sampling Function | No |
| Dimensions | 946 x 307 x 92 mm |
| Digital Effects | Reverb (10 types) |
| Lesson Function | Step Up Lesson |
| Key Transpose | -12 to +12 semitones |
| Tuning Control | A4 = 415.5 to 465.9 Hz |
| Input/Output Terminals | Headphone |
| Weight | 3.4 kg (Without batteries) |
Key operational advice and warnings before use, including safety and compliance information.
Identifies and explains the keyboard's buttons, controls, and display elements.
Details on using the 10-key pad and FUNCTION button for settings adjustments.
Instructions for setting up the music stand and powering the device via AC adapter or batteries.
Covers turning on/off, auto power off feature, and power-on alert.
Instructions for connecting headphones for practice and using the metronome.
Selecting instrument tones, adjusting reverb, pedal effects, and pitch (transpose/tuning).
Detailed steps for long and short sampling methods using the microphone.
Applying effects to samples, deleting data, and managing sampled sounds.
Selecting songs, controlling playback, and using skip/repeat functions.
Using the lesson system to learn songs, including part selection.
Explains the structured learning approach for songs and lesson progression.
Customizing lessons, turning guides/evaluations on/off, and auto progression.
Playing rhythm patterns and adding chords for accompaniment.
Playing intros, variations, fill-ins, endings, and using presets.
Connecting to computers for MIDI data exchange and configuring MIDI settings.
Connecting to external audio systems like amplifiers and players.
Solutions for common issues and technical details of the keyboard.
Guidelines for safe use, maintenance, and the library of built-in songs.
Examples of chord fingerings and the MIDI implementation chart.
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