Introduction
This manual provides instructions for the safe and effective use of your GreatPowerDirect AC Adapter. This power supply is designed to provide reliable power to compatible Yamaha keyboards, including models PSR-225, PSR-225GM, and PSR-3500.
Please read this manual thoroughly before using the product and retain it for future reference.
Safety Information
- Ensure the adapter's voltage and current ratings match your device's requirements before connecting.
- 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 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.
Package Contents
- 1x GreatPowerDirect AC Adapter (Model: GPD0806281195)

Image 1: The GreatPowerDirect AC Adapter. This image shows the main body of the adapter with its US-style two-prong plug and the attached power cord terminating in a barrel connector.
Setup Instructions
- Verify Compatibility: Ensure your device is a Yamaha PSR-225, PSR-225GM, or PSR-3500 keyboard. This adapter is specifically designed for these models.
- Connect to Device: Insert the barrel connector end of the AC adapter cable into the DC input jack on your Yamaha keyboard. Ensure a firm and secure connection.
- Connect to Power Outlet: Plug the two-prong AC plug of the adapter into a standard 100-240VAC 50/60Hz wall outlet.
- Power On Device: Once connected, you can power on your Yamaha keyboard.

Image 2: Detail of the adapter's connectors. This image highlights the barrel connector that plugs into the keyboard and the US-style two-prong plug for the wall outlet.
Operating Instructions
The GreatPowerDirect AC Adapter operates automatically once connected. It converts the incoming AC power from your wall outlet to the DC 12V power required by your compatible Yamaha keyboard.
- The adapter is designed for worldwide use with input voltage ranging from 100V to 240V AC.
- No user intervention is required during operation.
- Disconnect the adapter from the wall outlet and your device when not in use.
Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the adapter. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the cable and connectors for any signs of wear, fraying, or damage. If damage is observed, discontinue use immediately.
Troubleshooting
If your device is not receiving power, perform the following checks:
- Check Connections: Ensure both the barrel connector is fully inserted into your keyboard's DC input and the AC plug is securely seated in the wall outlet.
- Verify Power Outlet: Test the wall outlet with another known working device to confirm it is supplying power.
- Device Power Switch: Ensure your Yamaha keyboard's power switch is in the "ON" position.
- Adapter Condition: Inspect the adapter and cable for any visible damage. If damaged, do not use.
This adapter features built-in protections for short-circuit, over voltage, and over heat. If the adapter stops functioning, these protections may have been activated due to an issue. Disconnect the adapter and allow it to cool before re-attempting connection, or consult the manufacturer if the issue persists.
Specifications
| Feature | Detail |
|---|---|
| Model Number | GPD0806281195 |
| Brand | GreatPowerDirect |
| Compatibility | Yamaha PSR-225, 225GM, PSR-3500 Keyboards |
| Input Voltage | 100-240VAC, 50/60Hz |
| Output Voltage | DC 12V |
| Connector Type | Barrel Connector |
| Special Features | Short-circuit Protection, Over Voltage Protection, Over Heat Protection, Travel-friendly |
| Item Weight | 8 ounces |
Warranty and Support
For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact the seller directly. GreatPowerDirect is the manufacturer of this product.
Manufacturer: GreatPowerDirect