Introduction
Welcome to the Roland FR-4x Piano-type V-Accordion instruction manual. This guide provides essential information for setting up, operating, maintaining, and troubleshooting your instrument. Please read this manual thoroughly to ensure proper use and to maximize the performance of your FR-4x.
The Roland FR-4x is a digital V-Accordion that combines the familiar feel of an acoustic accordion with the versatility of modern digital technology. It features a powerful sound engine, onboard recording capabilities, and a responsive pressure-sensing bellows system.
Product Overview
The Roland FR-4x is designed for musicians seeking a high-quality digital accordion experience. Key features include:
- 37 velocity-sensitive piano-style keys
- 120 velocity-sensitive bass buttons
- Onboard recording and speaker system
- USB connectivity
- 128-note polyphony

Figure 1: Main view of the Roland FR-4x Piano-type V-Accordion. This image displays the keyboard, bass buttons, and control panel.
Setup
Unpacking and Initial Inspection
Carefully remove the FR-4x from its packaging. Inspect the instrument for any signs of damage that may have occurred during shipping. Retain all packaging materials for future transport or storage.
Power Connection
Connect the supplied AC adapter to the DC IN jack on the FR-4x and then plug it into a standard AC outlet. Ensure the power switch is in the OFF position before connecting.
Battery Installation (Optional)
The FR-4x can also be powered by AA-size rechargeable Ni-MH batteries (not included). Open the battery compartment cover on the underside of the instrument and insert eight AA batteries, observing the correct polarity.
Strap Attachment
Attach the shoulder straps to the strap pins located on the top and bottom of the instrument. Adjust the straps for comfortable playing posture.
Operating Instructions
Powering On/Off
To power on, press the power switch located on the control panel. To power off, press and hold the power switch until the display turns off.
Basic Sound Selection
Use the ACCORDION and ORCHESTRAL buttons to select different sound categories. Rotate the VALUE dial to browse through the available sounds within each category.
Bellows Control
The FR-4x features a pressure-sensing bellows system. The volume and expression of the sound are controlled by the movement of the bellows, similar to an acoustic accordion.
Recording
To record your performance, press the REC button. Play your desired passage, then press STOP to end the recording. Refer to the detailed manual for advanced recording features and playback options.
USB Connectivity
Connect the FR-4x to a computer using a USB Type B cable for MIDI communication or data transfer. This allows for software updates, sound library management, and use as a MIDI controller.
Video 1: A short demonstration of the Roland FR-4x V-Accordion's sound capabilities. This video illustrates various tones and expressions achievable with the instrument.
Video 2: An overview of the Roland FR-4x V-Accordion's features and design. This video highlights the physical aspects and key functionalities of the instrument.
Video 3: A brief preview demonstrating the responsiveness of the Roland FR-4x V-Accordion's bellows. This short clip showcases the dynamic control over sound.
Video 4: An extended performance and feature demonstration of the Roland FR-4x V-Accordion. This video provides a comprehensive look at the instrument's capabilities in a musical context.
Maintenance
Cleaning
Use a soft, dry cloth to wipe the exterior of the instrument. For stubborn dirt, a slightly damp cloth can be used, followed by a dry cloth. Avoid abrasive cleaners or solvents.
Storage
When not in use, store the FR-4x in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries to prevent leakage.
Battery Care
If using rechargeable batteries, ensure they are charged regularly. Do not mix old and new batteries, or different types of batteries.
Troubleshooting
No Sound
- Check if the power is on and the volume is turned up.
- Ensure headphones or external speakers are properly connected.
- Verify that a sound has been selected and the bellows are being moved.
Display Not Working
- Ensure the AC adapter is securely connected or batteries are properly installed and charged.
- Try powering the unit off and on again.
USB Connection Issues
- Verify the USB cable is correctly connected to both the FR-4x and the computer.
- Check if the necessary drivers are installed on your computer.
For further assistance, refer to the comprehensive owner's manual available on the Roland website or contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Name | FR-4x |
| Keys | 37 Velocity-sensitive Piano-type |
| Bass Buttons | 120 Velocity-sensitive |
| Polyphony | 128 notes |
| Item Weight | 28.6 pounds (12.97 kg) |
| Product Dimensions | 24.4 x 23.4 x 14.1 inches (61.98 x 59.44 x 35.81 cm) |
| Connectivity | USB Type B |
| Manufacturer | Roland |
| UPC | 761294509227 |
Warranty Information
Roland products are covered by a limited warranty. For specific details regarding the warranty period and terms for your FR-4x, please refer to the warranty card included with your product or visit the official Roland website. Keep your proof of purchase for warranty claims.
Support
For technical support, service, or additional information, please visit the official Roland support website or contact your local Roland distributor.
Official Roland Website: www.roland.com





