onerbl 12V AC/DC Power Adapter
Onerbl 12V AC/DC Power Adapter User Manual for Kmise MI3267 M13267 Digital Piano
1. Introduction
This manual provides essential instructions for the safe and effective use of your Onerbl 12V AC/DC Power Adapter. This adapter is designed as a replacement power supply for compatible devices, including the Kmise MI3267 and M13267 Digital Pianos. Please read this manual thoroughly before use and retain it for future reference.
2. Important Safety Information
- Ensure the adapter's voltage and current ratings match your device's requirements. Using an incompatible adapter may damage 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 attempt to repair 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.
- The adapter features built-in protections against over-voltage, over-current, and short-circuit conditions to ensure safe operation.

Figure 2.1: Smart Chip with Multiple Protection Features. This image illustrates the adapter's integrated smart chip, providing safeguards against short-circuit, over-voltage, and over-current conditions for enhanced safety.
3. Package Contents
Please check the package contents upon receipt. If any items are missing or damaged, contact customer support.
- Onerbl 12V AC/DC Power Adapter
- AC Power Cord

Figure 3.1: Onerbl 12V AC/DC Power Adapter and AC Power Cord. This image displays the main power adapter unit along with its separate AC power cord, which connects the adapter to a wall outlet.
4. Setup Instructions
- Connect the AC Power Cord: Insert the 2-pin connector of the AC power cord into the corresponding port on the Onerbl 12V AC/DC Power Adapter. Ensure it is firmly seated.
- Connect to Device: Plug the DC output connector of the adapter into the power input jack of your compatible device (e.g., Kmise MI3267/M13267 Digital Piano).
- Connect to Power Outlet: Insert the AC plug of the power cord into a standard wall power outlet (AC 100-240V, 50/60Hz).
- Verify Power: A small indicator light on the adapter will illuminate, confirming that power is being supplied. Your device should now be ready for operation.

Figure 4.1: Adapter in Use. This image demonstrates the power adapter properly connected to a wall outlet and supplying power to a device on a desk, with the indicator light visible.
5. Operating Instructions
Once connected as described in the Setup section, the Onerbl 12V AC/DC Power Adapter will continuously supply power to your device. There are no additional operational controls on the adapter itself.
- To power on your device, use the device's own power switch.
- To disconnect power, unplug the adapter from the wall outlet first, then disconnect from your device.
6. Maintenance and Care
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid tightly coiling the cables to prevent damage.
- Cable Inspection: Regularly inspect the power cord and adapter for any signs of damage, such as frayed wires, cuts, or bent pins. If damage is found, discontinue use immediately and replace the adapter.

Figure 6.1: Durable Design. This image highlights the construction quality of the power adapter's cable, featuring copper wire and a protective PVC jacket for durability and safety.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to device. |
|
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| Adapter feels hot. |
|
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| Indicator light not on. |
|
|
8. Specifications
| Brand | Onerbl |
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 12V |
| Wattage | 12 Watts |
| Compatible Devices | Musical Instruments (e.g., Kmise MI3267, M13267 Digital Pianos) |
| Special Feature | Travel-friendly design, Over Voltage Protection, Over Heat Protection |
| Cable Length | Approximately 127.8 inches (324.6 cm) total (AC cord + DC cord) |

Figure 8.1: Adapter Dimensions. This image provides a detailed view of the power adapter's dimensions, including the length of both the AC and DC cables, totaling approximately 127.8 inches.

Figure 8.2: Extended Cord Design. This image illustrates the extended length of the power adapter's cord, providing flexibility for various setup configurations.

Figure 8.3: Wide Range of Applications. This image demonstrates the versatility of the power adapter, suitable for various electronic devices beyond digital pianos, such as CCTV, routers, and humidifiers.
9. Warranty and Support
This product comes with a standard return policy. For specific warranty details or technical support, please refer to the retailer's policy or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.
For customer service inquiries, please visit the Onerbl brand page or contact your point of purchase.
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