1. Product Overview
This manual provides instructions for the SKKSource 8ft 2-Prong Square AC Power Cord, designed as a replacement power cable for compatible electronic musical instruments, specifically the Korg Concert C-800 and 800 Series Pianos.
The power cord features a 2-prong square connector on one end and a standard 2-prong AC plug on the other, ensuring a secure and reliable power connection to your device.

Image 1: The SKKSource 8ft 2-Prong Square AC Power Cord, showing the 2-prong wall plug, the 2-prong square connector, and detailed dimensions of the square connector (21mm x 12mm, with prong holes 10mm center-to-center).
2. Safety Information
Please read and understand all safety information before using this product. Failure to follow these instructions may result in electric shock, fire, or damage to the product or connected devices.
- Ventilation: If the adapter is used for extended periods, ensure adequate ventilation and humidity. Do not place it on heat-sensitive surfaces or materials.
- Compatibility: Verify that the DC output and tip size of this AC power cord are compatible with your device before connecting. This cord is specifically designed for Korg Concert C-800 and 800 Series Pianos.
- Protection Features: This product is manufactured with safety features to guard against incorrect voltage (IV), short circuits (SC), and internal overheating (IO).
- Cable Integrity: The power supply uses high-quality copper core wire to prevent breakage and extend its lifespan. Avoid bending, twisting, or crimping the cable excessively.
- Certifications: Chargers are certified with CE, FCC, and other relevant standards.
- Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
3. Setup and Connection
Follow these steps to properly connect the power cord to your Korg Concert C-800 or 800 Series Piano:
- Verify Compatibility: Ensure your device is a Korg Concert C-800 or 800 Series Piano. The rectangular end of the power cord measures approximately 13/16" x 1/2" (21mm x 12mm), and the prong holes are 10mm (a little over 3/8") center-to-center. Confirm these dimensions match your instrument's power input port.
- Connect to Instrument: Insert the square 2-prong connector firmly into the power input port on your Korg piano.
- Connect to Power Outlet: Plug the standard 2-prong AC plug into a suitable wall power outlet.
- Power On: Once both ends are securely connected, you can power on your instrument.

Image 2: The SKKSource 2-Prong Square AC Power Cord shown alongside a Korg Concert Series Piano, illustrating its compatibility.
4. Operating Instructions
This power cord functions as a direct replacement or spare for your Korg Concert C-800 or 800 Series Piano's original power cable. Once properly connected, it supplies the necessary AC power to operate your instrument.
- Ensure the power cord is not strained or kinked during use.
- Avoid placing heavy objects on the power cord.
- Always unplug the cord from the wall outlet before disconnecting it from the instrument, especially during thunderstorms or when not in use for extended periods.
5. Maintenance
Proper care and maintenance will extend the life of your power cord:
- Cleaning: Disconnect the power cord from both the wall outlet and the instrument before cleaning. Wipe the cord with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Storage: When not in use, coil the power cord loosely. Avoid tight coiling or sharp bends, which can damage the internal wires. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the power cord for any signs of damage, such as frayed insulation, exposed wires, or bent prongs. If any damage is observed, discontinue use immediately and replace the cord.
6. Troubleshooting
If your Korg piano is not receiving power after connecting the SKKSource power cord, consider the following:
- No Power:
- Ensure both ends of the power cord are fully and securely plugged in.
- Check the wall outlet by plugging in another known working device to confirm it has power.
- Inspect the power cord for any visible damage (cuts, kinks, bent prongs). If damaged, replace the cord.
- Confirm the power switch on your Korg piano is in the "On" position.
- Loose Connection: If the connection feels loose, ensure the square connector's dimensions match your instrument's input port precisely. This cord is designed for a snug fit.
If issues persist, please contact SKKSource customer support for assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | SKKSource |
| Compatible Devices | Korg Concert C-800, Korg 800 Series Piano |
| Connector Type | 2-Pin (Square to Standard AC) |
| Cable Length | 8 feet (approximately 2.4 meters) |
| Square Connector Dimensions | 13/16" x 1/2" (21mm x 12mm) |
| Prong Hole Spacing (Square Connector) | 10mm (center-to-center) |
| Input Voltage | 240 Volts (AC) (Note: Standard US outlets are 120V. This indicates the cord's maximum rating.) |
| Output Voltage | 12 Volts (DC) (Note: This refers to the output of the device it powers, not the cord itself. The cord transmits AC.) |
| Material | Composite, Metal, Plastic |
| Color | Black |
| Special Feature | Travel (Compact and durable design) |
8. Support and Warranty
For any questions, concerns, or assistance with your SKKSource 8ft 2-Prong Square AC Power Cord, please contact SKKSource customer support.
SKKSource products are manufactured with high-quality materials and undergo aging tests to ensure durability and performance.
While specific warranty details are not provided in this manual, please refer to your purchase documentation or contact SKKSource directly for warranty information.