dellersound Portable Piano Keyboard KD88 User Manual

1. Introduction

Thank you for choosing the dellersound KD88 Portable Digital Folding Piano. This instrument combines portability with a full 88-key semi-weighted keyboard, offering a versatile playing experience for musicians of all levels. This manual provides essential information for the safe and effective use of your new digital piano.

Image 1.1: The dellersound KD88 Portable Digital Folding Piano in use and folded.

The KD88 features 128 tones, 128 rhythms, 30 demo songs, MIDI functionality, and a built-in rechargeable battery, making it suitable for practice, performance, and creative music production. Its unique folding design allows for easy transport and storage.

Image 1.2: The KD88 piano is designed for portability, weighing approximately 2.6 kg.

2. Safety Information

• Do not expose the instrument to direct sunlight, high temperatures, or excessive humidity.
• Avoid placing the instrument near heat sources or in areas with poor ventilation.
• Do not use excessive force when operating buttons or keys.
• Keep the instrument away from water and other liquids.
• Use only the provided power adapter.
• Do not attempt to disassemble or modify the instrument. Refer all servicing to qualified personnel.
• Keep out of reach of small children to prevent accidental injury or ingestion of small parts.

3. Package Contents

Please check that all items are present in the package:

• dellersound KD88 Digital Folding Piano
• Sustain Pedal
• Power Adapter
• USB-C Cable
• Music Stand
• Carrying Bag
• User Manual (this document)

Image 3.1: Included accessories with the KD88 Digital Folding Piano.

4. Product Overview

4.1. Control Panel and Interfaces

Image 4.1: KD88 Control Panel Layout.

• Power Switch: Turns the piano on or off.
• LED Display: Shows current settings (tone, rhythm, volume, etc.).
• Encoder Switch: Rotary knob for adjusting parameters and navigating menus.
• Recording/Playing Button: Initiates recording or playback of performances.
• Metronome Button: Activates the metronome function.
• Demonstrate Button: Plays built-in demo songs.
• Timbre Button: Selects different instrument tones.

Image 4.2: KD88 Interface Ports.

• SUS (Sustain) Port: For connecting the sustain pedal.
• MP3 Port: For connecting external audio devices.
• MIC Port: For connecting a microphone.
• Headphone Jack (3.5mm): For private practice.
• USB Port (Micro USB): For power, charging, and MIDI connectivity.

5. Setup

5.1. Unfolding the Piano

1. Place the folded piano on a flat, stable surface.
2. Locate the folding mechanism release button (usually near the hinge).
3. Press the button and carefully unfold the two halves of the keyboard until it locks into a straight, flat position. Ensure it is fully locked before use.

5.2. Powering the Piano

The KD88 offers three power options:

Image 5.1: Power Supply Options.

• Power Adapter: Connect the provided power adapter to the DC IN port and a wall outlet.
• USB Port Charging: Connect the USB-C cable to the USB port on the piano and a compatible USB power source (e.g., computer, USB wall charger).
• Built-in Battery: The piano has a built-in rechargeable Lithium Polymer battery. Ensure it is charged before portable use.

5.3. Connecting the Sustain Pedal

Plug the sustain pedal cable into the 'SUS' port on the piano's interface panel.

5.4. Connecting Headphones or External Speakers

For private practice, plug 3.5mm headphones into the headphone jack. To connect to external speakers or an amplifier, use an appropriate audio cable from the headphone jack to your audio system's input.

Image 5.2: Private practice with headphones.

5.5. MIDI Connectivity

The KD88 features MIDI functionality via its Micro USB port. Connect the piano to a computer, smartphone, or other intelligent device using a Micro USB cable to use it as a MIDI controller for music composition and software interaction.

Image 5.3: MIDI function for connecting to computers and smart devices.

5.6. Bluetooth APP Practice

The KD88 supports Bluetooth connectivity for use with practice applications on your smartphone or tablet. Refer to your device's Bluetooth settings and the specific app's instructions for pairing.

Image 5.4: Bluetooth APP practice for quick start learning.

6. Operating Instructions

6.1. Power On/Off and Volume Control

• Press the Power Switch to turn the piano on or off.
• Use the Encoder Switch to adjust the master volume. Rotate clockwise to increase, counter-clockwise to decrease.

6.2. Selecting Tones and Rhythms

The KD88 features 128 tones and 128 rhythms.

Image 6.1: Rich sound features of the KD88.

• Press the Timbre Button to enter Tone selection mode. Use the Encoder Switch to browse and select from 128 different instrument sounds.
• To select rhythms, refer to the specific rhythm selection function (details may vary, consult the LED display). Use the Encoder Switch to choose from 128 rhythms.

6.3. Playing Demo Songs

Press the Demonstrate Button to play through the 30 built-in demo songs. Use the Encoder Switch to select a specific demo song if desired.

6.4. Metronome Function

Press the Metronome Button to activate the metronome. Use the Encoder Switch to adjust the tempo.

6.5. Recording and Playback

Press the Recording/Playing Button to initiate recording. Play your desired piece. Press the button again to stop recording. To play back your recorded performance, press the Recording/Playing Button once more.

6.6. Transpose Function

The transpose function allows you to shift the pitch of the keyboard up or down in semitone steps. Refer to the LED display and use the Encoder Switch to adjust the transpose value.

6.7. Chord and Vibrato Functions

These functions enhance your playing. Refer to the LED display and specific button labels for activation and adjustment. The Chord function may enable automatic chord accompaniment, while Vibrato adds a wavering effect to the sound.

6.8. Dynamic Touch Sensitivity

The 88 semi-weighted keys are touch-sensitive, meaning the volume and timbre of the sound will vary based on how hard you strike the keys, mimicking an acoustic piano.

6.9. Dual Tone Setting

The KD88 supports an innovative Dual Tone setting, allowing two different instrument sounds to be layered and played simultaneously. Refer to the LED display and controls to activate and select the layered tones.

Image 6.2: Innovative Dual Tone Setting.

6.10. LED Key Lights

The keys feature LED lights that illuminate when struck, providing visual feedback during play or practice.

Image 6.3: Triggering red LED lights when playing piano keys.

7. Maintenance

7.1. Cleaning

• Wipe the surface of the piano with a soft, dry cloth.
• For stubborn dirt, slightly dampen the cloth with water and a mild, non-abrasive cleaner. Avoid excessive moisture.
• Do not use chemical solvents, alcohol, or abrasive cleaners, as these can damage the finish.

7.2. Storage

• When not in use, fold the piano and store it in its carrying bag to protect it from dust and damage.
• Store in a cool, dry place away from direct sunlight, extreme temperatures, and humidity.

7.3. Battery Care

• Charge the battery fully before first use.
• For optimal battery life, avoid completely draining the battery frequently.
• If storing the piano for an extended period, charge the battery to approximately 50% every few months.

8. Troubleshooting

9. Specifications

• Model Name: KD88
• Brand: dellersound
• Number of Keys: 88
• Key Type: Semi-Weighted, Touch Sensitive
• Tones: 128
• Rhythms: 128
• Demo Songs: 30
• Polyphony: 128
• Connectivity: Micro USB (MIDI, Power), 3.5mm Headphone Jack, MP3 Input, MIC Input, Bluetooth
• Power Source: Built-in Lithium Polymer Battery, Power Adapter, USB-C
• Speakers: Built-in (2 x 25W)
• Special Features: Folding Design, LED Key Lights, Metronome, Recording, Playback, Transpose, Chord, Vibrato, Dual Tone, Dynamic Touch
• Item Weight: Approximately 13.17 pounds (5.97 kg)
• Package Dimensions: 28.5 x 12.25 x 8.3 inches (72.4 x 31.1 x 21.1 cm)
• Body Material: Wood (internal components), Plastic (exterior)

Image 9.1: KD88 dimensions when unfolded.

10. Warranty and Support

For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact dellersound customer service through the retailer where the product was acquired. Keep your purchase receipt as proof of purchase.