HKY HKY
HKY 24V AC/DC Power Adapter User Manual
Model: HKY
Introduction
This user manual provides essential information for the safe and effective use of your HKY 24V AC/DC Power Adapter. Please read this manual thoroughly before using the product and retain it for future reference.
The HKY 24V AC/DC Power Adapter is designed to provide a stable and reliable power supply for various Casio musical instruments, including specific models of Privia, Celviano, MZ-X, and CGP series pianos and keyboards. It features robust construction and multiple safety protections to ensure optimal performance and device longevity.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the product and connected devices:
- Ensure the power adapter's voltage and current specifications match the requirements of your device.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not disassemble or modify the adapter. Refer all servicing to qualified personnel.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep out of reach of children.

Image: The HKY power adapter features a UL certified plug, ensuring high safety standards for electrical connections.
Specifications
| Feature | Detail |
|---|---|
| Input Voltage | 100-240V AC, 50-60Hz |
| Output Voltage | 24V DC |
| Output Current | 2.73A |
| Output Power | 65W |
| Connector Type | Barrel Connector (as pictured) |
| Cable Length | Approximately 10 feet (3 meters) total length |
| Safety Certifications | UL, CE, FCC, RoHS compliant |
| Protection Features | Over Voltage Protection (OVP), Over Current Protection (OCP), Short Circuit Protection (SCP) |

Image: The HKY 24V AC/DC Power Adapter, showing the main unit, AC power cord, and DC output cable with barrel connector.
Compatible Models
This power adapter is compatible with a wide range of Casio musical instruments. Please verify your device's power requirements before connecting.
- Casio Model: AD-E24250LW, PSAA60W-240, AD-A24250LW
- Casio MZ-X Series: MZ-X500, MZ-X300
- Casio CGP Series: CGP-700, CGP-700BK
- Casio AP Series: AP-450, AP-450BK, AP-450BN, AP-460, AP-460BN, AP-460BK, AP-460WE, AP-420, AP-420BK, AP-470
- Casio Privia PX Series: PX-860, PX-860WE, PX-860BK, PX-860BN, PX-780, PX-780BK, PX-780m, PX-830, PX-830BK, PX-830BP, PX-A800, PX-A800BN, PX-870, PX-870BK, PX-870BN, PX-870WE, PX-850, PX-850BN, PX-850BK, PX-850WE, PX-758M, PX-758MBK
- Casio CT-X Series: CT-X5000
Setup and Connection
- Unpack: Carefully remove the HKY power adapter from its packaging.
- Inspect: Check the adapter and cables for any visible damage. Do not use if damaged.
- Connect to Device: Locate the DC input jack on your Casio piano or keyboard. Insert the barrel connector of the HKY power adapter firmly into this jack. Ensure a secure connection.
- Connect to Power Outlet: Plug the AC power cord of the adapter into a standard 100-240V wall outlet.
- Power On: Once connected, you can power on your musical instrument.

Image: The HKY power adapter connected to a Casio keyboard, demonstrating its compact size and the extra-long 10-foot cable for flexible placement.

Image: A user playing a Casio keyboard, illustrating the practical application of the HKY power adapter in a home setting.
Operating Instructions
The HKY power adapter operates automatically once connected. It provides a continuous and stable power supply to your compatible Casio device.
- Stable Power: The adapter is designed for continuous operation, providing consistent 24V DC power.
- Safety Features: Built-in Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP) safeguard both the adapter and your connected device from electrical irregularities.
- Energy Efficiency: The adapter is designed to be energy-efficient, complying with modern standards.

Image: An illustration of the high-quality internal components of the HKY power adapter, highlighting features like overcharging prevention and intelligent current matching for stable power delivery.
Maintenance
Proper maintenance ensures the longevity and safe operation of your HKY power adapter:
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid sharp bends or kinks in the cable. Do not place heavy objects on the cable. The adapter features reinforced stress points and flexible insulation to withstand wear and tear.
- Inspection: Periodically inspect the adapter and cables for any signs of damage, such as frayed wires or cracked casing.

Image: A diagram illustrating advanced components of the HKY power adapter, including pure copper cable for durability, a magic tape strap for cable management, and an anti-interference magnetic ring.

Image: An illustration demonstrating the flexible insulation and bending test results, indicating the cable's durability and resistance to damage from repeated bending.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on. | Adapter not properly connected. Power outlet issue. Incompatible device. Adapter or device malfunction. | Ensure all connections are secure. Test the outlet with another device. Verify your device model is listed as compatible. Contact customer support if issues persist. |
| Adapter feels hot. | Normal operation (slight warmth). Overload or poor ventilation. | Ensure adequate ventilation around the adapter. If it's excessively hot or emitting smoke/smell, unplug immediately and contact support. |
| Intermittent power. | Loose connection. Damaged cable. | Check all connections. Inspect the cable for damage. If damaged, discontinue use and replace. |
If you encounter problems not listed here or if the suggested solutions do not resolve the issue, please contact HKY customer support.
Warranty and Support
HKY is committed to providing high-quality products and excellent customer service.
- Warranty: This product comes with a 3-year warranty and a 90-day money-back guarantee.
- Customer Support: For any quality problems, suggestions, or technical assistance, please contact our customer service team. We offer 24/7 email support and aim to reply within 24 hours.

Image: An overview of HKY's customer service commitment, including a 30-day money-back guarantee, 3-year warranty, and 24/7 service, alongside a diagram of the cable's internal construction for reliability.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.