Casio Casiotone LK-S250 61-Key Lighted Portable Keyboard User Manual

1. Introduction

The Casio Casiotone LK-S250 is a compact and portable 61-key electronic keyboard designed for musicians of all skill levels. It features a key lighting system to assist with learning, a wide range of tones and rhythms, and connectivity options for external devices. This manual provides essential information for setting up, operating, and maintaining your LK-S250 keyboard.

Figure 1: Front view of the Casio Casiotone LK-S250 keyboard.

Key Features:

• 61 Touch-Responsive Keys: Full-size keys that respond to playing dynamics.
• Key Lighting System: Keys light up to guide you through lessons and songs.
• 4-Stage Lesson System: Voice-guided lessons for structured learning.
• 400 Tones & 77 Rhythms: A diverse selection of instrument sounds and accompaniment patterns.
• Dance Music Mode: Create and remix electronic dance music tracks.
• Portable Design: Lightweight with a built-in carrying handle and battery power option.
• Connectivity: USB-MIDI, 1/8" audio input, and 1/4" microphone input.

2. Setup

Follow these steps to prepare your Casio Casiotone LK-S250 for use.

2.1 Power Supply

The keyboard can be powered using the included AC adapter or six AA batteries.

1. Using the AC Adapter: Connect the included AC adapter to the DC 9.5V jack on the rear of the keyboard and plug it into a standard wall outlet.
2. Using Batteries: Open the battery compartment on the underside of the keyboard. Insert six AA-size alkaline batteries, ensuring correct polarity (+/-). Close the compartment securely.

2.2 Attaching the Music Rest

Slide the included music rest into the slot located on the top panel of the keyboard. Ensure it is firmly seated.

2.3 Initial Power On

Press the [POWER] button located on the top panel to turn on the keyboard. The LCD display will illuminate.

Figure 2: The portable design of the LK-S250, featuring a built-in handle for easy transport.

3. Operation

This section details the various functions and modes of your LK-S250 keyboard.

3.1 Basic Controls

• Volume Knob: Adjusts the overall output volume.
• LCD Display: Shows current tone, rhythm, song number, and other settings.
• Function Buttons: Access various settings and modes. Refer to the on-screen prompts.

3.2 Tones and Rhythms

The LK-S250 offers 400 different tones (instrument sounds) and 77 accompaniment rhythms.

• Selecting Tones: Use the [TONE] button and the numeric keypad or [+/-] buttons to select a desired tone.
• Selecting Rhythms: Use the [RHYTHM] button and the numeric keypad or [+/-] buttons to select an accompaniment rhythm. Press [START/STOP] to begin/end the rhythm.
• Reverb: Apply one of 10 reverb types to add depth to your sound. Access this setting via the [FUNCTION] menu.

Figure 3: The keyboard's speakers, LCD display, and touch-sensitive keys for expressive play.

3.3 Lesson System and Key Lighting

The LK-S250 features a built-in lesson system with 60 songs and a key lighting function to guide your practice.

• Activating Lessons: Press the [LESSON] button. Use the numeric keypad or [+/-] buttons to select a song.
• Key Lighting: The keys will light up to indicate which notes to play. Follow the lights to learn the melody.
• 4-Stage Lesson: Progress through different stages, from listening to playing along, with voice guidance.

Figure 4: The unique key lighting system guides users by illuminating the notes to be played.

3.4 Dance Music Mode

This mode allows you to create and remix EDM tracks by triggering loops and effects with the keys.

• Activating Dance Music Mode: Press the [DANCE MUSIC] button.
• Creating Tracks: Select a style and use the keys to trigger drum loops, basslines, synth parts, effects, and transitions.

3.5 Connectivity

The LK-S250 offers various ports for connecting to other devices.

• Headphones: Plug 3.5mm headphones into the [PHONES/OUTPUT] jack for private practice.
• Audio Input: Connect an external audio player (e.g., smartphone, tablet) to the [AUDIO IN] 1/8" stereo mini jack to play along with your favorite music.
• Microphone Input: Connect a microphone to the [MIC IN] 1/4" jack to sing along.
• USB-MIDI: Use the class-compliant USB port to connect the keyboard to a Mac, PC, iOS, or Android device. This enables MIDI communication without requiring special drivers.
• Chordana Play App: Enhance your learning experience by connecting to the free Chordana Play app (iOS/Android) to learn songs from downloaded MIDI files.

Figure 5: Connecting the keyboard to a tablet via USB-MIDI for use with learning applications like Chordana Play.

3.6 My Setup Button

The [MY SETUP] button allows you to quickly save and recall your favorite tones, rhythms, and other settings for instant access.

4. Maintenance

Proper care will ensure the longevity and optimal performance of your keyboard.

4.1 Cleaning

• Wipe the keyboard's surface with a soft, dry cloth.
• For stubborn dirt, slightly dampen the cloth with water and a mild, neutral detergent, then wipe dry immediately.
• Avoid using abrasive cleaners, solvents, or chemical wipes, as these can damage the finish.

4.2 Storage

• Store the keyboard in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
• If storing for an extended period, remove the batteries to prevent leakage.

4.3 Battery Replacement

When the battery indicator on the LCD display is low, replace all six AA batteries with new ones to ensure consistent performance.

5. Troubleshooting

If you encounter issues with your LK-S250, refer to the following common problems and solutions.

• No Sound:
  • Check the volume knob and ensure it is turned up.
  • If headphones are connected, disconnect them to check speaker output.
  • Ensure the AC adapter is properly connected or batteries are fresh and correctly inserted.
• Keys Not Lighting Up:
  • Ensure the lesson function is active and a song is selected.
  • Check the lesson settings to confirm key lighting is enabled.
• Connectivity Issues (USB-MIDI):
  • Ensure the USB cable is securely connected to both the keyboard and your device.
  • Verify that your computer or mobile device recognizes the keyboard as a MIDI device.
  • Restart both the keyboard and the connected device.
• Distorted Sound:
  • Reduce the volume level.
  • If using external speakers, check their connections and volume levels.

If the problem persists, consult the Casio support website or contact customer service.

6. Specifications

Figure 6: Physical dimensions of the LK-S250 keyboard.

7. Warranty and Support

7.1 Warranty Information

For detailed warranty information, please refer to the warranty card included with your product or visit the official Casio website. Keep your proof of purchase for warranty claims.

7.2 Customer Support

If you require further assistance, technical support, or have questions not covered in this manual, please contact Casio customer support through their official website or the contact information provided in your product packaging.