1. Introduction
This instruction manual provides essential information for the safe and effective use of your onerbl AC/DC Adapter. This adapter is designed as a replacement power supply for various Sony radio models. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Observe the following safety precautions to prevent electric shock, fire, or damage to the product or connected devices.
- Ensure the adapter's input voltage (AC 100-240V) matches your local power supply.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid using the adapter if the cord or plug is damaged.
- Do not attempt to open or repair the adapter. Refer servicing to qualified personnel.
- Unplug the adapter from the power outlet when not in use for extended periods.
- This adapter features built-in Over Voltage Protection, Over Heat Protection, and Short-Circuit Protection to safeguard your devices.

Figure 2.1: Smart Chip with Multiple Protection Features
3. Package Contents
Verify that all items are present in the package:
- 1 x onerbl AC/DC Adapter
4. Product Overview

Figure 4.1: Front and Side View of the AC/DC Adapter
The onerbl AC/DC Adapter is a compact power supply designed for portability and compatibility with various Sony radio models. It features a standard two-prong plug for wall outlets and a barrel connector for device input.
5. Setup
Follow these steps to connect your AC/DC adapter to your compatible Sony radio:
- Identify the Power Port: Locate the DC input port on your Sony radio. This is typically a circular port.
- Connect the Adapter: Insert the barrel connector of the onerbl AC/DC Adapter firmly into the DC input port of your radio.
- Plug into Power Outlet: Insert the two-prong plug of the adapter into a standard AC 100-240V wall power outlet.
- Verify Connection: Ensure both connections are secure. Your radio should now be receiving power.

Figure 5.1: Adapter Connected to a Device and Power Outlet
6. Operating Instructions
Once the adapter is properly connected as described in the Setup section, your Sony radio will receive power directly from the wall outlet. You can then operate your radio according to its own instruction manual.
- The adapter provides a stable 5V DC output, compatible with devices requiring 4.5V or 5V.
- No additional controls are present on the adapter itself; its function is to convert AC power to DC power for your device.
7. Maintenance
To ensure the longevity and optimal performance of your onerbl AC/DC Adapter, follow these maintenance guidelines:
- Cleaning: Wipe the adapter with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid wrapping the cable too tightly.
- Inspection: Periodically inspect the cable and plug for any signs of damage, such as fraying or bends. Discontinue use if damage is observed.

Figure 7.1: Durable Design and Quality Construction
8. Troubleshooting
If you encounter issues with your AC/DC adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on. | Adapter not properly connected. | Ensure the barrel connector is fully inserted into the radio and the plug is secure in the wall outlet. |
| Radio does not power on. | Wall outlet is not active. | Test the wall outlet with another device or try a different outlet. |
| Adapter feels unusually hot. | Overload or poor ventilation. | Unplug the adapter immediately. Ensure it is not covered and is in a well-ventilated area. If the issue persists, discontinue use. |
| Intermittent power to radio. | Loose connection or damaged cable. | Check all connections. Inspect the cable for damage. If damaged, discontinue use. |
If troubleshooting steps do not resolve the issue, please contact customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | onerbl |
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 5V |
| Wattage | 5 Watts |
| Connector Type | Barrel Connector |
| Cable Length | 76 inches (approximately 6.3 feet) |
| Compatible Devices | Sony Radios: ICF-M410, ICF-M410V, ICF-M410S, ICF-M410L, ICF-SW40, ICF-SW30, ICF-SW15, ICF-SW33 (and other 4.5V/5V compatible devices) |
| Safety Features | Over Voltage Protection, Over Heat Protection, Short-Circuit Protection |
| Additional Features | Portable, Travel-friendly |

Figure 9.1: Adapter Dimensions and Cable Length
10. Warranty and Support
For warranty information or technical support, please refer to the retailer's return policy or contact the manufacturer directly. Keep your purchase receipt for any warranty claims.