Yamaha PSR-EW425 User Manual

Before using the instrument, be sure to read
“PRECAUTIONS” on pages 5 – 7.

Yamaha PSR-EW425 Specifications

General

Display	LCD
Amplifiers	12 W + 12 W
Speakers	12 cm x 2
One Touch Setting (OTS)	Yes
Quick Sampling	Yes
Groove Creator	Yes
USB Audio Recorder	Yes
Power Supply	PA-300C or an equivalent recommended by Yamaha
Arpeggiator	Yes
Styles	290 styles
Effects	Reverb, Chorus, DSP, Master EQ
Connectivity	Headphones, USB to Host, USB to Device, Aux In
Keyboard	76 keys, touch response
Voices	820 voices

Summary

FCC Information and Compliance

FCC Regulations and Notices

Details FCC compliance, warnings against modifications, and usage instructions.

Important Safety Instructions

Graphical Symbols and General Safety

Explains graphical symbols and provides general safety instructions for operating the instrument.

Precautions for Safe Operation

AC Adaptor and Instrument Safety

Safety guidelines for AC adaptor usage, power, water, fire, and battery handling.

Precautions for Safe Operation (Continued)

Location, Handling, and Connections

Guidelines for instrument placement, safe handling, connections, and abnormality response.

Panel Controls and Terminals

Front Panel Overview and SHIFT Function

Panel Controls and Terminals (Continued)

Quick Sampling, Pitch Bend, and Rear Panel Ports

Setting Up the Instrument

Power Requirements and AC Adaptor Usage

Information on power sources, AC adaptor connection, and related warnings.

Battery Installation and Handling

Details on battery types, installation, and necessary precautions for battery operation.

Setting Up the Instrument (Continued)

Battery Type Settings and Power Status Check

Setting Up the Instrument (Continued)

Power On/Off and Auto Power Off Functions

Instructions for turning the instrument on/off and managing auto power-off features.

Basic Operations and Display Items

Core Operation Workflow and Data Selection

Step-by-step guide to selecting functions, data, and starting playback.

Basic Operations and Display Items (Continued)

Data Selection Techniques

Details using the dial, category buttons, and number input for data selection.

Display Items Explained

Understanding Instrument Display Indicators

Explains all indicators and information shown on the instrument's display for operational clarity.

Using Common Functions

Metronome, Tempo, and Mega Boost

How to use the metronome, tap tempo, change tempo, and utilize the Mega Boost.

Playing a Variety of Instrument Voices

Selecting Main and Dual Voices

How to choose a main voice and layer a second voice for richer sound.

Playing a Variety of Instrument Voices (Continued)

Split Voice and One Touch Settings

How to use split voice and recall optimum panel settings (OTS) for performance.

Playing a Variety of Instrument Voices (Continued)

Harmony and Arpeggio Effects

Articulation Effects and Pedal Control

Adding Effects to Performance and Playback

Digital Signal Processor (DSP) Effects

Explains how to add and configure DSP1 and DSP2 effects for sound enhancement.

Adding Effects to Performance and Playback (Continued)

Motion Effects for Dynamic Sound

Creating Original Sounds via the Knobs

Knob Assignment and Usage for Sound Manipulation

How to assign functions to the knobs and use them for sound manipulation.

Playing with Rhythm and Auto Accompaniment (Styles)

Styles, Auto Accompaniment, and Sync Start

Guide to selecting Styles, using ACMP, Sync Start, and playing chords for accompaniment.

Playing with Rhythm and Auto Accompaniment (Styles) (Continued)

Style Playback Variations and Track Control

Playing with Rhythm and Auto Accompaniment (Styles) (Continued)

Fingering Types and Style Customization

Setting fingering types, smart chord key, and revoicing style parts for personalized performance.

Playing Back Songs or Audio Files (Continued)

Playing Demo Songs and User Songs

Playing Audio Files and Transport Controls

Song Section Repeat and Track Muting

Connecting and Using a Microphone

Microphone Connection and Setup

Step-by-step guide for connecting a microphone and initial setup for vocal performance.

Playing with Groove Creator

Groove Playback and Sound Customization

How to play grooves, change tracks, sections, and use Musical Climax for dynamic performances.

Using Quick Sampling

Quick Sampling Overview and Playback

Using Quick Sampling (Continued)

Preparing for Sampling and Capturing External Audio

Using Quick Sampling (Continued)

Sampling Process and Audio Playback Sampling

Recording Your Performance

Song and Audio Recording Overview

Recording a New User Song

Recording Your Performance (Continued)

Clearing User Songs and Tracks

Recording Your Performance (Continued)

Recording and Saving Audio Files to USB

Saving Your Favorite Settings (Registration Memory)

Saving Panel Settings to Registration Memory

Saving Your Favorite Settings (Registration Memory) (Continued)

Recalling Settings and Freeze Function

Connecting to External Devices

Connecting Headphones and External Speakers

Connecting to External Devices (Continued)

Playing External Audio Devices and Smart Device Connectivity

Connecting a USB Flash Drive

USB Flash Drive Precautions and Formatting

Guidelines for using USB flash drives, including compatibility, precautions, and formatting.

Connecting a USB Flash Drive (Continued)

USB Flash Drive File Control Operations

Managing Data on USB Flash Drives (Save, Load, Delete)

The Functions

Accessing and Using Instrument Functions

Step-by-step guide on navigating and changing instrument functions via the display.

The Functions (Continued)

Function List - Overall and Voice Parameters

Function List - Split Voice, Style, Groove, Song, Effects, DSP

The Functions (Continued)

Function List - Microphone, Sampling, Harmony/Arpeggio, Pedal

Function List - Scale Tuning, Metronome, MIDI

Function List - Audio, Registration Freeze, Demo, Speaker

Backup and Initialization

Backup Data and Initialization Methods

Explains backup parameters, files, and methods for initializing the instrument to factory settings.

Troubleshooting

Common Problems and Solutions

Guides users through common instrument issues and their resolutions for problem-solving.

Troubleshooting (Continued)

Additional Troubleshooting Scenarios

Covers further common problems and solutions for instrument operation and connectivity.