1. Introduction
This 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 specific Arcade1Up models, converting AC power from an electrical outlet into the DC power required by your device. Please read these instructions carefully before use.
2. Important Safety Instructions
- Voltage Compatibility: This adapter is designed for 12V DC Arcade1Up models only. It is NOT compatible with 5V versions. Verify your device's voltage requirements before connecting.
- Indoor Use Only: Do not expose the adapter to rain, moisture, or extreme temperatures.
- Proper Ventilation: Ensure the adapter has adequate ventilation. Do not cover it or place it in an enclosed space during operation.
- Avoid Damage: Do not use the adapter if the cord or plug is damaged. Do not attempt to open or repair the adapter.
- Disconnect When Not in Use: Unplug the adapter from the power outlet when not in use for extended periods.
- Children and Pets: Keep the adapter out of reach of children and pets.
3. Product Overview
The Onerbl AC-DC Adapter provides reliable power to your compatible Arcade1Up gaming cabinet. It consists of the main adapter unit and a detachable AC input power cord.

This image displays the Onerbl AC-DC adapter unit along with its key dimensions. The main adapter body measures approximately 4.2 inches in length, 1.8 inches in width, and 1.2 inches in height. The output cable, connecting to the device, is 44.3 inches long, while the input cable, connecting to the wall outlet, is 79.3 inches long. The total cable length is 127.8 inches.

This image shows the detachable AC power cord. It features a standard two-prong plug for wall outlets on one end and a C7 connector on the other end, which plugs into the Onerbl AC-DC adapter unit.
4. Setup Instructions
- Verify Compatibility: Confirm that your Arcade1Up cabinet requires a 12V DC power supply. This adapter is specifically designed for models MRC-A-403811, 8280, and XMN-A-01253.
- Connect AC Cord: Plug the detachable AC power cord into the adapter unit. Ensure it is firmly seated.
- Connect to Device: Insert the DC output plug from the adapter into the power input port of your Arcade1Up cabinet.
- Connect to Power Outlet: Plug the AC power cord into a standard, grounded electrical wall outlet.
- Power On: If your Arcade1Up cabinet has a power switch, turn it on. The adapter typically has an indicator light (often blue) that illuminates when power is supplied.

This image illustrates the Onerbl AC-DC adapter in a typical usage scenario. The adapter's input cable is plugged into a standard wall outlet, and the output cable is connected to a device, likely an Arcade1Up cabinet. The adapter unit rests on a wooden surface.
5. Operating Instructions
Once properly connected, the Onerbl AC-DC Adapter will continuously supply power to your Arcade1Up cabinet. No further user interaction with the adapter itself is required during operation. The adapter is designed for continuous use with compatible devices.
6. Compatibility
This Onerbl AC-DC Adapter is specifically designed and tested for compatibility with the following Arcade1Up models:
- Arcade1Up Model: MRC-A-403811 (Marvel Vs. Capcom 2 X-Men ‘97 Edition Deluxe AT Home Arcade Video Game Gaming Cabinet Machine with Lit Marquee and Riser)
- Arcade1Up Model: 8280 (X-Men VS Street Fighter Arcade Cabinet with Riser)
- Arcade1Up Model: XMN-A-01253 (X-Men 4 Player Arcade Video Game Machine Riser Lit Marquee)
Important Note: This adapter provides 12V DC output. It is NOT for use with Arcade1Up cabinets or other devices that require a 5V power supply. Using an incorrect voltage adapter can damage your device.
7. Maintenance
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or aerosols.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid wrapping the cable too tightly around the adapter.
- Inspection: Periodically inspect the adapter and cables for any signs of damage, such as fraying, cuts, or bent pins. If damage is found, discontinue use and replace the adapter.
8. Troubleshooting
- No Power to Device:
- Ensure all connections (AC cord to adapter, adapter to device, AC cord to wall outlet) are secure.
- Check if the wall outlet is functional by plugging in another device.
- Verify that your Arcade1Up cabinet's power switch is in the 'ON' position.
- Confirm the adapter's indicator light is illuminated. If not, the adapter may not be receiving power or may be faulty.
- Device Not Functioning Correctly:
- Double-check that your Arcade1Up model is listed as compatible and requires a 12V DC power supply. Incorrect voltage can cause malfunction or damage.
- Ensure the adapter is not overheating. If it is excessively hot, disconnect it immediately.
If troubleshooting steps do not resolve the issue, contact customer support for further assistance.
9. Specifications
| Product Type | AC-DC Power Adapter |
| Input Voltage | AC (Standard Wall Outlet) |
| Output Voltage | 12V DC |
| Compatibility | Arcade1Up Models: MRC-A-403811, 8280, XMN-A-01253 (12V versions only) |
| Total Cable Length | Approximately 127.8 inches (3.25 meters) |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
10. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the retailer. Specific warranty details are not provided in this manual.