Yamaha PortableGrand DGX-670 User Manual (English)

Questions and Answers:

J
James SmithAug 15, 2025
What to do if there is no sound or strange sound in the left-hand section on my Yamaha Electronic Keyboard?
- D
  Dr. Jennifer GriffinAug 15, 2025
  If no sound is heard or the sound is strange in the left-hand section of your Yamaha Electronic Keyboard, check the Stop ACMP parameter. If it's set to something other than Disabled, the chord section Voice won't sound correctly when the [ACMP] button is on. You can set the Stop ACMP parameter to Disabled or turn the [ACMP] button off.
K
Kimberly JordanAug 18, 2025
How to fix if existing file is not shown on Yamaha PortableGrand DGX-670?
- K
  Kathryn LopezAug 18, 2025
  If an existing file is not shown on your Yamaha Electronic Keyboard, the file extension (.MID, etc.) may have been changed or deleted. Manually rename the file on a computer, adding the appropriate extension. Also, data files with names longer than 50 characters cannot be handled by the instrument. Rename the file, reducing the number of characters to 50 or less.
C
Caleb BaileyAug 21, 2025
Why does my Yamaha PortableGrand DGX-670 Electronic Keyboard sound like it has a strange flanging or doubling effect?
- J
  John WilliamsAug 21, 2025
  If you hear a strange flanging or doubling sound that varies each time you play the keys on your Yamaha Electronic Keyboard, it might be because the Main and Layer parts are both active and set to the same Voice. To fix this, either turn off the Layer part or select a different Voice for one of the parts.
A
Ashley BurtonAug 25, 2025
What to do if the style does not start when I press the [START/STOP] button on my Yamaha Electronic Keyboard?
- T
  Tina ChambersAug 25, 2025
  If the style on your Yamaha Electronic Keyboard doesn't start when you press the [START/STOP] button, it could be that the Rhythm channel of the selected Style doesn't contain any data. To resolve this, turn on the [ACMP] button and play the left-hand section on the keyboard to activate the accompaniment part of the Style.
M
michele37Aug 27, 2025
Why does only the rhythm channel play on my Yamaha PortableGrand DGX-670 Electronic Keyboard?
- C
  christopher71Aug 27, 2025
  If you only hear the rhythm channel on your Yamaha Electronic Keyboard, ensure that the Auto Accompaniment function is turned on by pressing the [ACMP] button. Also, make sure you are playing keys in the chord section of the keyboard.
J
Jennifer PooleAug 31, 2025
Why audio files cannot be selected on my Yamaha Electronic Keyboard?
- J
  Jerry ButlerAug 31, 2025
  If audio files cannot be selected on your Yamaha Electronic Keyboard, it may be due to an incompatible file format. The instrument only supports the WAV format. Also, DRM-protected files cannot be played back.
J
Joshua MillerSep 2, 2025
What to do if the Voice selected from the Voice Selection display does not sound on my Yamaha Electronic Keyboard?
- M
  Misty WiseSep 3, 2025
  If a voice selected from the Voice Selection display does not sound on your Yamaha Electronic Keyboard, turn on the PART ON/OFF button for the desired part.
D
Daniel JimenezSep 5, 2025
Why songs cannot be selected on my Yamaha PortableGrand DGX-670 Electronic Keyboard?
- E
  Eric ParksSep 5, 2025
  If songs cannot be selected on your Yamaha Electronic Keyboard, this might be because the language settings have been changed. Set the appropriate language for the Song file name. If the size of the Song data is large (about 300 KB or greater), the Song cannot be selected because the data is too large to be handled by the instrument.
H
hsheltonSep 9, 2025
What to do if song playback stops before the song is finished on my Yamaha PortableGrand DGX-670 Electronic Keyboard?
- A
  adamscassandraSep 9, 2025
  If song playback stops before the song is finished on your Yamaha Electronic Keyboard, the Guide function may be turned on. Turn off the Guide function.

Yamaha PortableGrand DGX-670 Specifications

General

Touch Response	Soft, Medium, Hard, Fixed
One Touch Setting (OTS)	4 per style
Power Supply	PA-300C or an equivalent recommended by Yamaha
Keyboard Type	Graded Hammer Standard (GHS) keyboard
Polyphony	256
Featured Voices	VRM (Virtual Resonance Modeling), Super Articulation Voices
Accompaniment Styles	263
Display	4.3 inch TFT Color LCD
Amplifiers	6W + 6W
Speakers	12cm x 2
Dimensions	1397 x 445 x 151 mm
Effects	Reverb, Chorus, DSP, Master EQ
Songs	100 Preset Songs
Recording	16-track recording
Connectivity	Headphones, Microphone, AUX IN, USB to Device, USB to Host, Pedal Unit
Included Accessories	Music Rest

Summary

PRECAUTIONS

For the AC adaptor

Safety precautions for using the AC adaptor with Yamaha electronic instruments.

For the instrument

General safety warnings to prevent injury or damage to the instrument.

About the Manuals

Included Documents

Lists the documents included with the instrument for basic operations.

Online Materials

Information on downloadable manuals and data from the Yamaha website.

Included Accessories

Lists the accessories that come with the instrument.

Panel Controls and Terminals

Top Panel

Identifies and explains the controls and features on the top panel of the instrument.

Rear Panel

Identifies and explains the connection terminals on the rear panel of the instrument.

Starting Up

Power Supply

Instructions for connecting the AC adaptor and power supply.

Turning the Power On/Off

Steps for powering the instrument on and off.

Setting the Auto Power Off function

Details on how to configure or disable the auto power off feature.

Adjusting the Master Volume

How to adjust the overall volume level of the instrument.

Basic Operations

Display-based Controls

Explanation of how to use controls and displays on the LCD screen.

Main Display Configuration

Details on the main display elements and their functions.

File Management

Instructions for saving, copying, moving, creating folders, and deleting files.

Entering Characters

Guide on how to enter characters for naming files, folders, etc.

Data Backup

Procedure for backing up and restoring instrument settings and data.

Resetting to the Factory-programmed Settings (Initializing)

How to reset the instrument's settings to their factory defaults.

1 Piano Room – Enjoying the Piano Performance –

Playing a Piano Performance in the Piano Room

How to call up and play using the Piano Room function.

Making the Detailed Settings in the Piano Room

Adjusting touch sensitivity and other detailed settings within Piano Room.

Recording your Performance in the Piano Room

Steps for recording and saving piano performances within the Piano Room.

2 Voices – Playing the keyboard with various sounds –

Playing Preset Voices

How to select and play preset Voices using Main, Layer, and Left parts.

Playing Super Articulation Voices

Using Super Articulation Voices for realistic musical expressions.

Setting the Touch Response of the Keyboard

Adjusting how the sound responds to playing strength (velocity).

Applying Voice Effects

Using the multi-processor effect system to add depth and expression.

3 Styles – Playing Rhythm and Accompaniment –

Playing a Style with the Auto Accompaniment

How to play with automatic accompaniment by using Styles.

To Start/Stop Playing

Instructions for starting, stopping, and controlling Style playback.

Changing Variation (Sections) During Style Playback

Using Main Variations, Fills, and Breaks to add dynamism to performances.

Adjusting the Tempo

How to change the playback tempo for Styles.

Playing in Unison or Adding Accents to Style Playback (Unison & Accent)

Using Unison and Accent functions for expressive control over Style playback.

Changing the Chord Fingering Type

Selecting how the instrument detects chords for Style accompaniment.

Changing the Split Points

Adjusting the keyboard split points for Left and Style sections.

4 Songs – Playing, Practicing and Recording Songs –

Playback of Songs

How to select and play back preset, recorded, or commercial MIDI Songs.

Playback-related Operations

Operations for pausing, synchro start, rewinding, and adjusting Song playback.

Displaying Music Notation (Score)

Viewing the music notation for selected Songs.

One-handed Practice with the Guide Function

Practicing specific parts of a Song using the Guide function.

Recording Your Performance

How to record keyboard performances as MIDI files.

5 USB Audio Player/Recorder – Playback and Recording Audio Files –

Playing Back Audio Files (USB Audio Player)

How to play back WAV audio files from a USB flash drive.

Recording Your Performance as Audio (USB Audio Recorder)

Recording performances as WAV audio files to a USB flash drive.

6 Microphone – Connecting a Microphone and Singing Along with Your Performance –

Connecting a Microphone

Steps for connecting a microphone and adjusting its input level.

Applying Effects to Your Singing Voice

Applying effects like Reverb and Chorus to the microphone input.

7 Registration Memory/Playlist – Saving and Recalling Custom Panel Setups –

Registration Memory

Saving and recalling custom panel settings to buttons.

Playlist

Creating custom performance lists linking to Registration Memory files.

Recalling a Registered Panel Setup

Procedure for recalling saved panel setups via Bank files.

8 Mixer – Editing the Volume and Tonal Balance –

Basic Procedure

How to call up the Mixer display and edit parts like Panel, External, and Style.

9 Connections – Using Your Instrument with Other Devices –

Connecting USB Devices ([USB TO DEVICE] terminal)

Precautions and procedures for connecting USB flash drives.

Connecting to a Computer ([USB TO HOST] terminal)

How to connect the instrument to a computer for data transfer.

Connecting to a Smart Device ([AUX IN] jack/Bluetooth/[USB TO HOST] terminal/Wireless LAN)

Connecting smart devices via various methods for audio and app usage.

Listening to Audio data from a Bluetooth-equipped device through this instrument (Bluetooth Audio Function)

Playing audio from Bluetooth devices through the instrument's speakers.

Connecting Headphones or an External Speaker ([PHONES/OUTPUT] jack)

Connecting headphones or external speakers to the instrument.

10 Menu – Making Global Settings and Using Advanced Features –

Basic Procedure

How to navigate and use the instrument's Menu for settings.

Function List

An overview of functions accessible via the Menu and their locations.

Troubleshooting

Overall

Common issues and solutions related to power, noise, and display.

Voice

Troubleshooting issues related to voice selection and sound output.

Style

Troubleshooting problems with Style playback and selection.

Song

Troubleshooting issues related to Song playback and selection.

Connection

Troubleshooting connection issues with USB, Bluetooth, and audio devices.

Specifications

Compatible Format

Details on compatible file formats for MIDI, Styles, and Audio.

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Yamaha PortableGrand DGX-670 User Manual

Table of Contents

Questions and Answers:

Yamaha PortableGrand DGX-670 Specifications

Summary

PRECAUTIONS

For the AC adaptor

For the instrument

About the Manuals

Included Documents

Online Materials

Included Accessories

Panel Controls and Terminals

Top Panel

Rear Panel

Starting Up

Power Supply

Turning the Power On/Off

Setting the Auto Power Off function

Adjusting the Master Volume

Basic Operations

Display-based Controls

Main Display Configuration

File Management

Entering Characters

Data Backup

Resetting to the Factory-programmed Settings (Initializing)

1 Piano Room – Enjoying the Piano Performance –

Playing a Piano Performance in the Piano Room

Making the Detailed Settings in the Piano Room

Recording your Performance in the Piano Room

2 Voices – Playing the keyboard with various sounds –

Playing Preset Voices

Playing Super Articulation Voices

Setting the Touch Response of the Keyboard

Applying Voice Effects

3 Styles – Playing Rhythm and Accompaniment –

Playing a Style with the Auto Accompaniment

To Start/Stop Playing

Changing Variation (Sections) During Style Playback

Adjusting the Tempo

Playing in Unison or Adding Accents to Style Playback (Unison & Accent)

Changing the Chord Fingering Type

Changing the Split Points

4 Songs – Playing, Practicing and Recording Songs –

Playback of Songs

Playback-related Operations

Displaying Music Notation (Score)

One-handed Practice with the Guide Function

Recording Your Performance

5 USB Audio Player/Recorder – Playback and Recording Audio Files –

Playing Back Audio Files (USB Audio Player)

Recording Your Performance as Audio (USB Audio Recorder)

6 Microphone – Connecting a Microphone and Singing Along with Your Performance –

Connecting a Microphone

Applying Effects to Your Singing Voice

7 Registration Memory/Playlist – Saving and Recalling Custom Panel Setups –

Registration Memory

Playlist

Recalling a Registered Panel Setup

8 Mixer – Editing the Volume and Tonal Balance –

Basic Procedure

9 Connections – Using Your Instrument with Other Devices –

Connecting USB Devices ([USB TO DEVICE] terminal)

Connecting to a Computer ([USB TO HOST] terminal)

Connecting to a Smart Device ([AUX IN] jack/Bluetooth/[USB TO HOST] terminal/Wireless LAN)

Listening to Audio data from a Bluetooth-equipped device through this instrument (Bluetooth Audio Function)

Connecting Headphones or an External Speaker ([PHONES/OUTPUT] jack)

10 Menu – Making Global Settings and Using Advanced Features –

Basic Procedure

Function List

Troubleshooting

Overall

Voice

Style

Song

Connection

Specifications

Compatible Format

Related product manuals