Kircuit LS-B40
Kircuit AC Adapter User Manual
For Onkyo LS-B40 (B) Sound Bar System Power Supply
1. Introduction
Thank you for choosing the Kircuit AC Adapter. This manual provides essential information for the safe and effective use of your new power supply. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following safety precautions:
- Use the adapter only with compatible devices, specifically the Onkyo LS-B40 (B) Sound Bar System, to avoid electrical damage.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to open, modify, or repair the adapter. Refer servicing to qualified personnel.
- Ensure the power outlet is easily accessible and unplug the adapter during lightning storms or when unused for extended periods.
- Keep out of reach of children.

The Kircuit AC Adapter is designed with multiple safety protections, including safeguards against short circuits, excess voltage, over temperature, and overcurrent, ensuring reliable and safe power delivery.
3. Product Overview
The Kircuit AC Adapter is a high-quality power supply designed to provide stable and efficient power to your Onkyo LS-B40 (B) Sound Bar System. It features a robust design for durability and includes built-in protections for safe operation.

This image displays the Kircuit AC Adapter, highlighting its compact design and the attached power cord, ready for use.

A view of two Kircuit AC Adapters, illustrating their standard wall-plug design and overall size.

The power cable is constructed from high-quality materials with a thick insulation layer, designed to resist wear, tear, and abrasion, ensuring long-term durability and safety.

The adapter's plugs are well-made, designed for a secure and stable connection, and capable of handling electrical loads without overheating, reducing fire hazards.
4. Specifications
| Feature | Description |
|---|---|
| Model | AC Adapter for Onkyo LS-B40 (B) Sound Bar System |
| Input Voltage | 100V-240V AC |
| Output Wattage | 120 watts |
| Power Source | Corded Electric |
| Main Power Connector Type | 2 Pin (US Standard) |
| Cord Length | Approximately 6.5 ft (2 meters) |
| Item Weight | 8 ounces (approx. 227 grams) |
| Special Features | Portable, Travel-friendly, Built-in Overcharge Protection |

This image shows the adapter and its power cord, highlighting the approximate 6.5 ft cord length for convenient placement.
5. Setup
Follow these steps to set up your Kircuit AC Adapter:
- Verify Compatibility: Ensure your device is the Onkyo LS-B40 (B) Sound Bar System or another device requiring the exact same power specifications.
- Connect to Device: Carefully insert the DC output plug of the Kircuit AC Adapter into the power input port of your Onkyo LS-B40 (B) Sound Bar System. Ensure a snug and secure connection.
- Plug into Power Outlet: Insert the AC input plug of the adapter into a standard wall power outlet (100V-240V AC).
- Power On: Once connected, your sound bar system should receive power. Refer to your sound bar's manual for specific power-on instructions.

The adapter is shown plugged into a power strip, illustrating how it connects to a standard electrical outlet.
6. Operating Instructions
The Kircuit AC Adapter operates automatically once connected to a power source and a compatible device. It provides a stable power supply for continuous operation of your Onkyo LS-B40 (B) Sound Bar System.
- Continuous Power: The adapter is designed for continuous power delivery.
- Overcharge Protection: The built-in IC and power fuse protect against overcharging, ensuring the longevity of your device.
- Temperature Management: Avoid covering the adapter during operation to allow for proper ventilation and prevent overheating.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your AC adapter:
- Cleaning: Disconnect the adapter from the power outlet and the device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the adapter in a cool, dry place away from direct sunlight and moisture. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires, cracks, or bent pins. If damage is found, discontinue use immediately.
8. Troubleshooting
If you encounter issues with your Kircuit AC Adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on | Adapter not properly plugged in; Power outlet issue; Device issue; Damaged adapter | Ensure adapter is fully plugged into both the wall outlet and the device. Test the outlet with another appliance. Check the device's power button. Inspect adapter for damage; if damaged, replace. |
| Adapter feels hot | Normal operation; Poor ventilation; Overload | A slight warmth is normal. Ensure adapter is in a well-ventilated area, not covered. If excessively hot, unplug immediately and check device's power requirements. |
| Intermittent power | Loose connection; Damaged cable/connector | Check all connections for tightness. Inspect the cable and connector for any visible damage. If damaged, replace the adapter. |
9. Warranty and Support
Specific warranty details for this Kircuit AC Adapter are not provided in this manual. For information regarding warranty coverage, technical support, or replacement parts, please refer to the product packaging or visit the official Kircuit website. Keep your purchase receipt as proof of purchase.
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