1. Introduction
This manual provides essential instructions for the safe and effective use of your Kircuit AC Adapter, designed as a replacement power supply for the Gemini PMX-15A Scratch Master Stereo Preamp Compact Mixer. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
To prevent electric shock, fire, or damage to the product, please observe the following safety precautions:
- Ensure the adapter's voltage and current ratings match the requirements of your device (Gemini PMX-15A Mixer).
- 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.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep out of reach of children.
3. Package Contents
The package contains:
- 1 x Kircuit AC Adapter for Gemini PMX-15A
4. Product Overview
The Kircuit AC Adapter is designed to provide reliable power to your Gemini PMX-15A mixer. It features a robust design with built-in safety mechanisms.

Image 1: Front view of the Kircuit AC Adapter with its attached power cord and barrel connector.

Image 2: The Kircuit AC Adapter illustrating its 6.5 ft cord length for flexible placement.
Key Features:
- Input Voltage: 100V-240V AC, suitable for various regions.
- Safety Protections: Incorporates Dynamic IC, Charger IC, and Power fuse for rapid charging and overcharge protection.
- Durable Design: Constructed with quality materials for longevity.

Image 3: Diagram illustrating the adapter's built-in safety protections, including short circuit, excess voltage, over temperature, and overcurrent protection.

Image 4: Detailed view of the power cable, highlighting its durable construction with thick insulation and robust plug design.
5. Setup
Follow these steps to set up your Kircuit AC Adapter:
- Verify Compatibility: Ensure the adapter's output specifications match the power requirements of your Gemini PMX-15A mixer.
- Connect to Mixer: Insert the barrel connector of the AC adapter firmly into the power input jack of your Gemini PMX-15A mixer.
- Connect to Power Outlet: Plug the AC adapter into a standard 100V-240V wall power outlet.
- Power On: Turn on your Gemini PMX-15A mixer using its power switch.

Image 5: The Kircuit AC Adapter plugged into a power strip, demonstrating a typical connection scenario.
6. Operating Instructions
Once connected, the Kircuit AC Adapter provides continuous power to your Gemini PMX-15A mixer. No further operation is required from the adapter itself. The mixer's power indicator should illuminate, indicating it is receiving power.
7. Maintenance
To ensure the longevity and optimal performance of your AC adapter:
- Cleaning: Disconnect the adapter from the power outlet and the mixer before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the cable and connector for any signs of wear, cuts, or damage. If damage is observed, discontinue use and replace the adapter.
8. Troubleshooting
If your Gemini PMX-15A mixer does not power on when connected to the Kircuit AC Adapter, consider the following:
- No Power:
- Ensure the adapter is securely plugged into a working wall outlet. Test the outlet with another device.
- Verify the barrel connector is fully inserted into the mixer's power jack.
- Check the mixer's power switch is in the 'ON' position.
- Intermittent Power:
- Inspect the adapter's cable and connectors for any visible damage.
- Ensure connections are firm at both the wall outlet and the mixer.
If issues persist, contact customer support for assistance.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Kircuit |
| Input Voltage | 100V-240V AC |
| Connector Type | Barrel Connector |
| Power Source | Corded Electric |
| Item Weight | 8 Ounces |
10. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Kircuit customer service through the retailer where the product was acquired.