1. Introduction
This manual provides instructions for the safe and effective use of your onerbl 12V AC-DC Adapter. This adapter is designed as a replacement power supply for specific Arcade1Up game cabinets, including models STF-A-202110 and STF-A-303911. It converts standard AC wall power into the 12V DC power required by your device.
2. Safety Information
- Read all instructions: Before using the adapter, read and understand all safety and operating instructions.
- 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 voltage matches the adapter's input requirements (typically 100-240V AC).
- Avoid damage: Do not use the adapter if the cord or plug is damaged. Do not bend, twist, or pull the cord excessively.
- Ventilation: Ensure adequate ventilation around the adapter. Do not cover it or place it in an enclosed space that could restrict airflow.
- Disconnect when not in use: Unplug the adapter from the wall outlet when not in use for extended periods.
- Keep away from children: This product is not a toy. Keep it out of reach of children.
- Compatibility: Use this adapter only with compatible devices as specified. Using it with incompatible devices may cause damage. This adapter is specifically for 12V versions of Arcade1Up cabinets, not 5V versions.
3. Package Contents
Verify that all items are present in the package:
- 1 x onerbl 12V AC-DC Power Adapter
- 1 x AC Power Cord (Type A - 2 pin, North American)


4. Setup
- Connect the AC Power Cord: Insert the female end of the AC power cord into the input port of the onerbl 12V AC-DC adapter. Ensure it is firmly seated.
- Connect to Wall Outlet: Plug the 2-pin male end of the AC power cord into a standard North American 100-240V AC wall outlet.
- Connect to Device: Locate the DC input port on your Arcade1Up game cabinet (models STF-A-202110 or STF-A-303911). Insert the DC barrel connector from the onerbl adapter into this port.
- Verify Connection: Ensure all connections are secure before powering on your Arcade1Up cabinet.

5. Operating Instructions
Once the adapter is correctly connected to both the wall outlet and your Arcade1Up cabinet, the cabinet should receive power. Follow the operating instructions provided with your Arcade1Up game cabinet to power it on and begin use.
- The adapter is designed for continuous operation when powering your device.
- A small indicator light on the adapter may illuminate when power is supplied, indicating it is functioning.
- To power off your Arcade1Up cabinet, use the cabinet's power switch. For complete power disconnection, unplug the adapter from the wall outlet.
6. Maintenance
- 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 aerosols.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid wrapping the cable too tightly around the adapter.
- Inspection: Periodically inspect the adapter and its cables for any signs of damage, such as cuts, fraying, or bent pins. If damage is found, discontinue use and replace the adapter.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Arcade1Up cabinet does not power on. |
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| Adapter feels hot during use. |
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8. Specifications
| Brand | onerbl |
| Input Voltage | 100-240V AC (Standard Global) |
| Output Voltage | 12 Volts DC |
| Connector Type | DC Barrel (Proprietary) |
| Compatible Devices | Arcade1Up STF-A-202110, STF-A-303911, Capcom Street Fighter II 2 Deluxe Champion Turbo Legacy Edition Cabinet Game Machine Arcade 1up (12V versions only) |
| Power Plug Type | Type A - 2 pin (North American) |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Cable Length (Total) | Approximately 127.8 inches (324.6 cm) |

9. Warranty Information
This product is covered by a standard manufacturer's warranty. For specific details regarding warranty coverage, duration, and claims process, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for warranty purposes.
10. Support
If you encounter issues not covered in the troubleshooting section or require further assistance, please contact the seller or manufacturer:
- Seller: GreatComputerParts (as listed on Amazon)
- Manufacturer: Shenzhen Waweis Technology Co., Ltd
- For online support, visit the product page on Amazon or the manufacturer's official website if available.
When contacting support, please have your product model (onerbl 12V AC-DC Adapter) and purchase details ready.





