Introduction
This manual provides essential instructions for the safe and effective use of your Onerbl AC-DC Adapter. This power supply unit is specifically designed to provide reliable power to the Astak Model No CM-909 CM909 2.4GHZ Receiver.
Safety Information
- Indoor Use Only: This adapter is designed for indoor use. Do not expose it to rain, moisture, or extreme temperatures.
- Proper Voltage: Ensure the wall outlet provides the correct voltage (110V AC) as specified for the adapter.
- Ventilation: Do not cover the adapter during use, as this may lead to overheating.
- Damage Inspection: Regularly inspect the adapter and cable for any signs of damage. Discontinue use if damaged.
- Protection Features: This adapter includes built-in Over Voltage Protection, Over Heat Protection, and Short Circuit Protection to safeguard your devices.
- Children and Pets: Keep the adapter out of reach of children and pets.
Product Overview
The Onerbl AC-DC Adapter is a compact and efficient power supply unit. It converts standard alternating current (AC) from a wall outlet into direct current (DC) required by your compatible device. Its robust design ensures stable power delivery.

Image Description: A black AC-DC adapter featuring a standard US two-prong plug. The adapter's casing has a ribbed texture for heat dissipation. An attached power cord extends from the adapter, terminating in a barrel connector. The label on the adapter indicates it is an 'AC Adapter' with input voltage specifications.
Setup
- Prepare Device: Ensure your Astak Model No CM-909 CM909 2.4GHZ Receiver is powered off before connecting the adapter.
- Connect to Device: Insert the barrel connector of the Onerbl AC-DC Adapter firmly into the power input port on your Astak CM-909 receiver.
- Connect to Power Outlet: Plug the AC adapter into a standard, functional 110V AC electrical wall outlet.
Operating Instructions
Once the Onerbl AC-DC Adapter is securely connected to both the Astak CM-909 receiver and a live power outlet, the receiver is ready to be powered on. The adapter will continuously supply the necessary DC power for the device's operation.
Maintenance
- Cleaning: Use a dry, soft cloth to clean the adapter. 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 moisture.
- Cable Care: Avoid bending or crimping the power cable excessively, as this can damage internal wires.
Troubleshooting
If your Astak CM-909 receiver does not power on or function correctly after connecting the Onerbl AC-DC Adapter, consider the following:
- Connection Check: Verify that the adapter's barrel connector is fully inserted into the receiver's power port and that the AC plug is securely seated in the wall outlet.
- Power Outlet: Test the wall outlet with another device to ensure it is supplying power.
- Adapter Condition: Inspect the adapter and its cable for any visible signs of damage, such as cuts, frayed wires, or bent pins. If damage is found, discontinue use.
- Device Compatibility: Confirm that your device is indeed the Astak Model No CM-909 CM909 2.4GHZ Receiver, as this adapter is specifically designed for it.
If the issue persists after these checks, please contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | onerbl |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Input Voltage | 110 Volts (AC) |
| Connector Type | Barrel Connector |
| Compatible Devices | Astak Model No CM-909 CM909 2.4GHZ Receiver |
| Special Feature | Short Circuit Protection |
| Color | Black |
| Power Source | Corded Electric |

Image Description: An illustration detailing the physical dimensions of the AC-DC adapter. The main body of the adapter measures approximately 2.6 inches in length, 1.6 inches in width, and 1.2 inches in height.

Image Description: A visual representation of the power cable's length for the AC-DC adapter. The coiled cable is shown, indicating a total length of 76 inches.
Warranty and Support
For technical assistance, product inquiries, or information regarding warranty coverage, please refer to your purchase documentation or contact the retailer from whom the product was acquired. Specific warranty terms may vary.