Yamaha PSREW425 & FC4A
Yamaha 76-Key Touch-Sensitive Advanced Portable Keyboard (PSREW425) & FC4A Sustain Pedal
Instruction Manual
Introduction
This manual provides essential information for the setup, operation, maintenance, and troubleshooting of your Yamaha 76-Key Touch-Sensitive Advanced Portable Keyboard (PSREW425) and FC4A Assignable Piano Sustain Foot Pedal. The PSR-EW425 is designed for both beginners and experienced players, offering a wide range of features for musical expression. The FC4A pedal enhances your playing experience by providing sustain functionality.
Setup
Follow these steps to set up your Yamaha keyboard and sustain pedal:
- Unpacking: Carefully remove all components from the packaging. Ensure you have the keyboard, power adapter, music rest, and FC4A sustain pedal.
- Placement: Place the keyboard on a stable, flat surface or a compatible keyboard stand. Ensure there is adequate space for comfortable playing and access to connections.
- Power Connection: Connect the supplied power adapter to the DC IN 12V jack on the rear of the keyboard. Plug the other end into a standard electrical outlet.
- Sustain Pedal Connection: Connect the FC4A sustain pedal's 0.25-inch plug into the SUSTAIN jack on the rear of the keyboard.
- Music Rest Installation: Insert the music rest into the designated slots on top of the keyboard.

Image: The Yamaha PSREW425 keyboard shown with the FC4A sustain pedal, illustrating the complete product package.

Image: The Yamaha PSREW425 keyboard with its music rest installed, ready for use.

Image: A close-up view of the Yamaha FC4A Assignable Piano Sustain Foot Pedal, showing its design and connector.

Image: Rear view of the Yamaha PSREW425 keyboard, highlighting the various input and output ports including the DC IN and SUSTAIN jacks.
Operating Instructions
The PSR-EW425 keyboard offers a variety of features to enhance your musical performance:
- Power On/Off: Press the POWER button to turn the keyboard on or off.
- Volume Control: Use the MASTER VOLUME knob to adjust the overall sound level. The keyboard supports a wide dynamic range, from very quiet to loud.
- Voice Selection: The PSR-EW425 features 820 different voices. Use the VOICE section controls to browse and select your desired instrument sound.
- Assignable Knobs: Manipulate various effects and parameters on voices and styles in real-time using the assignable knobs. Refer to the on-screen display for current assignments.
- Mega Boost: Activate the Mega Boost function to add +6dB of boosted volume, useful for cutting through a mix or for a more powerful sound.
- Motion Effect: Modify voices with Filter, Pitch, and Modulation effects by holding the Motion Effect button. This allows for dynamic sound changes during performance.
- Quick Sampling: Record audio samples directly to USB or internal memory for instant recall during your performance. This feature allows for creative integration of custom sounds.
- Microphone Input: Connect a microphone to the dedicated input jack and utilize the built-in DSP effects to enhance your vocal sound.
- FC4A Sustain Pedal: The FC4A pedal provides sustain functionality, allowing notes to ring out longer. Press the pedal down to sustain notes and release to stop. The improved anti-slip rubber base ensures stability during use.

Image: A graphic highlighting the availability of 820 different instrument voices on the PSR-EW425 keyboard.

Image: A diagram illustrating the concept of the Motion Effect feature, showing a hand interacting with controls.

Image: A close-up view of the Quick Sampling pads on the Yamaha keyboard, showing the dedicated buttons for sampling functions.

Image: A person playing the Yamaha keyboard while singing into a microphone, demonstrating the microphone input feature.

Image: A side view of the Yamaha FC4A Sustain Pedal, showing its low profile and anti-slip feet.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your instrument:
- Cleaning: Wipe the keyboard and pedal surfaces with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly. Avoid abrasive cleaners or solvents.
- Storage: When not in use, store the keyboard and pedal in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If storing for extended periods, consider covering the keyboard to protect it from dust.
- Handling: Avoid dropping the instrument or subjecting it to strong impacts. Do not place heavy objects on the keys or controls.
Troubleshooting
If you encounter issues with your Yamaha keyboard or pedal, try the following solutions:
- No Power:
- Ensure the power adapter is securely connected to both the keyboard and a working electrical outlet.
- Verify that the power outlet is active.
- No Sound:
- Check the MASTER VOLUME knob and ensure it is turned up.
- If headphones are connected, disconnect them to enable speaker output.
- Ensure a voice is selected and not set to a silent patch.
- Sustain Pedal Not Working:
- Ensure the FC4A pedal is fully inserted into the SUSTAIN jack.
- Some pedals may require the keyboard to be powered off and on after connection to be recognized.
- Distorted Sound:
- Reduce the MASTER VOLUME.
- If using external speakers, check their connections and volume levels.
If the issue persists after attempting these steps, please contact Yamaha customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Name | PSREW425 |
| Item Model Number | PSREW425 & FC4A |
| Brand | Yamaha |
| Number of Keys | 76 |
| Key Sensitivity | Touch-Sensitive |
| Skill Level | Advanced |
| Special Feature | Portable |
| Power Source | Corded Electric |
| Connectivity Technology | USB |
| Supported Software | Audacity |
| Instrument Type | Piano |
Warranty and Support
For detailed warranty information regarding your Yamaha PSREW425 Keyboard and FC4A Sustain Pedal, please refer to the warranty card included with your product or visit the official Yamaha website. Yamaha provides comprehensive customer support for all its products.
For further assistance, technical support, or to inquire about repairs, please visit the official Yamaha support page or contact their customer service directly. Keep your purchase receipt and product serial number handy for faster service.
Official Yamaha Website: www.yamaha.com
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