DGX-660

This is the main loudness dial for everything you hear. Turn it up to get louder, down to get quieter. It controls the keyboard, styles, songs and playback all at once.

tip: Always start at MIN when powering up or connecting to other gear, then raise it while playing to find your level. Note: when Output Gain is set to 'Fixed' for a connected external audio device, this knob no longer changes the line-out level.

This is your go-to knob for picking sounds and changing settings. After you press a button like [VOICE], [STYLE], or [SONG/AUDIO], you spin this dial to scroll through the list until you land on the instrument sound or backing track you want. The manual calls it the easiest and most intuitive way to select things, and almost anything you can do with the +/- buttons you can do faster here.

tip: For long jumps (like scrolling from Voice 1 to Voice 400) spin the dial; for fine one-step nudges the [+]/[-] buttons are cleaner. Pressing [+] and [-] together resets most settings back to their default value.

This is your on/off button. Press it to turn the piano on; press and hold it for about a second to turn it off. When it looks 'off,' it's really just sleeping, so unplug the adaptor if you're leaving it for a long time.

tip: Hold the lowest key while turning on to disable Auto Power Off (which otherwise shuts down after 30 minutes idle). Hold the highest white key while powering on to reset all backup settings to factory defaults; add the three highest black keys to also wipe user songs and loaded files.

Press it to hear a built-in demonstration of the instrument's sounds and features. But it doubles as a 'background music' player: set it up once and it can loop through all your songs continuously, turning the piano into a jukebox.

tip: Hold the button for a second to pick a playback group. Combine with the 'Demo Play Mode' function set to '2 (Random)' for shuffled background playback instead of numerical order.

Shows sheet music on the screen for whatever song you've loaded, with a marker that follows along as the song plays. Great for reading and learning a piece as you hear it.

tip: Single-staff view shows chords and lyrics; double-staff view doesn't. If tiny notes look cluttered, adjust the Score 'Quantize' function to clean up the timing display so it's easier to read.

Puts the words of a song on screen, karaoke-style, highlighting them as the music plays so you can sing along and keep your place.

tip: Of the internal songs, only Song 38 provides a lyric display. For your own material, only MIDI song files that actually contain lyric data will show words—plain audio (WAV) files won't.

This is the record button. Press it to arm the instrument to capture your playing, then start playing (or press start) to record. You can build up a song one part at a time, or record everything as an audio file to a USB stick.

tip: For layered recording, hold [REC] while pressing a track button [1]–[5] to record parts one at a time; use [A] for the style accompaniment. Split Voice, the metronome, AUX IN and microphone sounds are never captured in MIDI Song recording—but audio recording does capture the mic and AUX IN.

A practice mode that holds your hand: the song freezes at each note until you press the right key, so you can't fall behind. Perfect for learning a piece note by note at your own pace.

tip: First pick which hand to practice using the Song Track [R/1] and [L/2] buttons (press both for a both-hands lesson). Your playing gets graded OK, Good, Very Good or Excellent at the end—turn grading off via the 'Grade' function if you'd rather not be scored.

A practice mode that follows your speed. Play the right notes and the backing keeps pace with you—play faster and it speeds up, slow down and it waits. It teaches correct timing without leaving you behind.

tip: Use this after you're comfortable with Lesson 1 (Waiting) and know the notes—it's about getting your rhythm even, since it only advances when you hit the right key with reasonable timing.

A play-along practice mode: the song plays at full speed but leaves out the part you picked, so you fill in that hand while everything else keeps going—like playing with a band. Held down, it becomes a chord lookup tool.

tip: Hold this button for a second to open the Chord Dictionary: press a root note in the Chord Root range and a chord-type key, and the screen shows you exactly which keys to press for that chord.

Lets you drive a full backing band by pressing just one key at a time. Tell it the key of your song, and it figures out the 'right' chords for you—so beginners can play convincing chord progressions without knowing how to finger chords.

tip: Hold the button for a second to set the Key Signature to match your sheet music (count the sharps or flats shown), then check the TYPE page to pick a music genre for more fitting chord choices. Turn on [SYNC START] first so the style kicks in the instant you press a key.

This is the control room for a microphone you've connected so you can sing along. It lets you turn the mic on, check that it isn't too loud (watch the input meter), and shape your voice — make it brighter, louder, add reverb echo, or clamp down on background hiss.

tip: Start with the STANDARD preset for balanced vocals; use BRIGHTER to help your voice cut through a busy backing, or LOUDER to even out loud and soft singing. Set the MIC VOLUME knob so the INPUT LEVEL meter doesn't peg to the far right, or you'll get distortion. You only get one USER slot, so saving overwrites the last one.

This turns one layer of a song's playback on or off — handy for silencing the melody so you can play it yourself. When learning a song, this same button picks the right-hand part to practice.

tip: Mute Track 1 to play the melody by ear along with the backing. For lessons, press [R] alone for a right-hand lesson, or hold [R] and [L] at the same time for a both-hands lesson. You can hold two Track buttons at once to flip several tracks together.

This mutes or un-mutes a second layer of the song — often the left-hand accompaniment. In lesson mode it's the button that tells the piano you want to practice the left-hand part.

tip: When recording a piano piece one hand at a time, record the right hand to Track 1 first, then record the left hand to Track 2 while listening back — you build up a full performance you couldn't play live all at once.

Another mute/un-mute switch for a separate layer of a song, and another slot you can record your own playing into. Useful for building a multi-part piece a track at a time.

tip: If you want to layer two sounds (a Dual Voice) into a recording, use Tracks 1 to 3 — the Dual layer only records to those. Each track can use a different Voice, so you can stack, say, piano on one track and strings on another.

A mute/un-mute switch for the song's fourth layer, and a fourth slot to record your own part into when building up a song piece by piece.

tip: A muted track shows differently on screen from an empty track, so you can tell at a glance which tracks actually contain something. Hold a Track button for over a second while a User Song is selected to clear just that one track.

Mutes or un-mutes the fifth playback layer, and gives you a fifth slot to record your own playing into. Together with the other track buttons this lets you assemble a whole song one part at a time.

tip: A User Song can hold up to about 30,000 notes across all its tracks. If you build a rich multi-track arrangement here, you can later convert the whole User Song into an audio (WAV) file on a USB drive to play on other devices.

This is the auto-band track. In playback it mutes or un-mutes the backing band; in recording it's where the whole Style accompaniment gets captured, separate from your own keyboard parts.

tip: Record your Style backing to Track A first, then record melodies to Tracks 1–5 while listening along. If you record to Tracks 1–5 without wanting the band, make sure Track A is turned off, because it can be auto-selected when Auto Accompaniment is on. To wipe a whole User Song, hold Track [A] plus Track [1] for over a second.

Turns on a steady click to keep you in time while practicing. Hold it down to change the count — for example a 3/4 waltz feel instead of standard 4/4 — where the first beat of each bar rings a bell.

tip: You can't change the time signature inside the Piano Room — set it before entering. The metronome click won't be captured when you record a Song or audio, so it's safe to practice with it running. Turn the bell accent off in the Function menu if you only want plain clicks.

Sets how fast the backing band, song, or metronome plays. Instead of dialing a number, you can just tap the button in time to the speed you want, and the music starts at that pace.

tip: Press the [+] and [-] buttons at the same time to instantly snap back to a Style's original default tempo. Tapping the button twice mid-song nudges the speed without stopping — great for finding the right groove live.

A drill tool for practicing a tricky spot. It rewinds a few bars, gives you a countdown, then loops that section over and over so you can nail the part that's tripping you up.

tip: Hit a number key [1] through [9] while it's looping to change how far back it jumps — pick a small number to hammer just one or two hard bars. This works with the Lesson feature (right-hand, left-hand, or both-hands practice) but not with audio files.

Lets you loop a chunk of a song over and over. Press it once when playback reaches the spot where you want the loop to begin, press again where you want it to end, and that slice repeats endlessly until you switch it off.

tip: To loop from the very beginning of a song, press this button before you start playback to set point A at the top. Great for drilling a tricky passage.

Jumps you backward through the song. A single tap steps back a little (one bar for MIDI songs, one second for audio recordings), and holding it down rewinds smoothly.

tip: Pair it with the [PAUSE] button to park exactly on a spot you want to practice against.

Jumps you forward through the song. A single tap skips ahead a little (one bar for MIDI songs, one second for audio recordings), and holding it down fast-forwards smoothly.

tip: Use short taps to nudge to the exact measure you want rather than holding and overshooting.

Freezes the song right where it is without losing your place. Press it again to pick up from that exact spot instead of starting over.

tip: Combine with [REW]/[FF] to line up a precise starting point before you play along.

The play/stop button for a song or audio recording. Press once to play the whole thing from the beginning, press again to stop it.

tip: This is also how you stop the Overview Demo. Don't confuse it with the STYLE [START/STOP] button just above it, which runs the backing-band patterns instead.

Switches on the automatic backing band. With it on, chords you play with your left hand steer the drums, bass, and harmony of the current Style; with it off, pressing Play gives you only the drum rhythm. An 'ACMP' indicator appears on screen when it's active.

tip: Hold it down for a second to choose how chords are recognized: Multi Finger (easy one-to-three-finger chords), FullKeyboard (chords detected anywhere on the keys), or AI Fingered (fewer notes needed).

Gives your backing band a proper opening and a proper finish instead of just cutting in and out. Press it before you start for an intro; press it during a song to trigger an ending that wraps up and stops on its own.

tip: Press it a second time while the ending is playing to make the band gradually slow down for a natural, dramatic finish.

Swaps between two versions of the main groove, A (usually simpler) and B (usually busier), and automatically plays a short drum fill as it changes. It's how you build energy across a song.

tip: Jump to Main B for choruses and back to Main A for verses; the automatic fill makes each transition sound intentional and polished.

Makes the backing band play only while your left hand is holding chords. Lift your hand and the band stops dead; press again and it restarts. This lets you punch in rhythmic breaks just by releasing the keys.

tip: Requires ACMP to be on to do anything useful. Use it for stop-and-start staccato hits and dramatic silences in a performance.

Puts the backing band on a hair trigger so it kicks in the moment you play your first left-hand chord. No need to hit a start button separately, so your playing and the band begin together perfectly.

tip: Turn this on before you start a song so the groove locks to your very first chord. Combine with the [INTRO/ENDING/rit.] button to launch straight into an intro on your first note.

This is the on/off switch for the backing band. Press it and the drums and rhythm of your chosen Style start playing; press it again to stop. If you've also turned on Auto Accompaniment (ACMP) and play a chord with your left hand, you'll hear a full band following your chords.

tip: Instead of this button, try pressing [SYNC START] first so the whole band kicks in the instant you play your first chord — a much more natural way to start a song than pressing a button with your hand.

Think of this as picking which drawer of saved setups you're looking in. Each of the 8 drawers holds 4 complete snapshots of your Voice, Style, tempo, effects and other settings. This button lets you flip between drawers before grabbing one of the four saved snapshots inside.

tip: Press and release [BANK], then turn the dial to move between banks. To save a setup, hold [BANK] down while pressing one of the [1]–[4] buttons — the current panel settings get stored instantly.

An instant-recall button for one of your saved setups. Press it and the whole instrument jumps to a complete configuration you saved earlier — the right sound, backing Style, tempo and effects all at once, with no menu digging.

tip: In Piano Room, the REGIST MEMORY [1]–[4] buttons are repurposed to control piano settings (environment, piano type, etc.) rather than recalling your saved setups.

The same instant-recall idea as slot 1, but for a second saved setup in the same drawer. Great for keeping a contrasting sound ready — for example, slot 1 for a piano ballad and slot 2 for a brass big-band setup — so you can switch mid-song with one press.

tip: Selecting a slot that already holds data will overwrite it when you save, so keep track of which of the four slots in a bank are full. Occupied slots light up in the MAIN display.

A third instant-recall slot within the same drawer of setups. With four slots per bank, you can line up the different sounds a single song needs — intro, verse, chorus, solo — and step through them button by button as you play.

tip: Settings can't be saved to Registration Memory during Song playback, so set up and store your slots before you start playing along to a Song.

The fourth instant-recall slot in a drawer. Like the others, one press loads a full saved configuration. Note that when you're in Piano Room, this same button does a different job — it flips between the main piano screen, the detailed settings, and the recording screen.

tip: In Piano Room, press [4] repeatedly to reach the RECORD page, where you can capture your piano performance as an audio file to a USB flash drive.

The reverse of the up-arrow button. It jumps back to the top of the previous group in a list — for example from the organs back to the pianos — so you can move through big lists in chunks instead of one item at a time. In the settings menus it moves backward through the settings.

tip: Use the two CATEGORY arrows to bracket the section you want, then fine-tune with the dial or number buttons to land on the exact Voice, Style or Song.

The reverse of the up-arrow button. It jumps back to the top of the previous group in a list — for example from the organs back to the pianos — so you can move through big lists in chunks instead of one item at a time. In the settings menus it moves backward through the settings.

tip: Use the two CATEGORY arrows to bracket the section you want, then fine-tune with the dial or number buttons to land on the exact Voice, Style or Song.

Your universal 'back to home' button. Whenever you're lost in a menu, a score view, or any special screen and just want to get back to normal playing, press this and you'll return to the main display. Note that while certain screens like the FILE CONTROL display are showing, the keyboard makes no sound until you press EXIT.

tip: If the keyboard suddenly stops making sound, check whether a special screen (like FILE CONTROL) is open — pressing EXIT to return to the MAIN display usually restores playability.

The 'do it' button for actions that need a definite go-ahead. Depending on what's on screen, it kicks off tasks like recording audio to USB, saving your custom mic settings, formatting a memory stick, or connecting to a Wi-Fi network — the important, committing steps.

tip: During audio recording setup, press [EXECUTE] to actually start recording after you've armed it with [REC]; press it again (or [REC]) to stop. Many operations follow up with a YES/NO prompt confirmed by the [+]/[-] buttons.

Instead of spinning the dial forever to reach, say, Voice 003, you can just punch in the number directly. This button is the zero. When you're naming a file you're saving to a USB stick, this same button nudges the text cursor one space to the right.

tip: If you already know the exact Voice, Style, or Song number from the panel list or the separate Data List, typing it in is much faster than dialing.

Punch in numbers directly to jump straight to a Voice, Style, or Song rather than scrolling. It's also handy during lesson practice: when you're looping a tricky passage with Repeat & Learn, pressing this makes the loop jump back just 1 measure before replaying.

tip: Use the number buttons [1]–[9] mid-practice to fine-tune how far Repeat & Learn rewinds, so you drill exactly the phrase you keep flubbing.

A quick way to type numbers so you can jump straight to a specific sound or song. In lesson mode, pressing it while looping tells the instrument to rewind 2 measures before playing the passage again.

tip: Leading zeros can be dropped when typing a number, so for Voice 023 you can just press [2][3] instead of hunting with the dial.

Type numbers directly to leap to a Voice, Style, or Song without scrolling. While practicing with Repeat & Learn, pressing it makes the loop rewind 3 measures each time before replaying.

A shortcut for typing numbers to jump straight to the sound or track you want. In lesson practice, pressing it sets the Repeat & Learn loop to rewind 4 measures before each replay.

tip: 4 measures is Repeat & Learn's normal default rewind, so pressing [4] simply restores that standard loop length if you've changed it.

Type numbers directly to jump to a specific Voice, Style, or Song instead of dialing through the list. During Repeat & Learn practice, pressing it makes the loop back up 5 measures before replaying.

A quick number-entry key for leaping straight to the sound or song you want. When looping a passage in lesson mode, pressing it makes Repeat & Learn rewind 6 measures each time.

Type numbers directly to jump to a Voice, Style, or Song without scrolling. During Repeat & Learn practice, pressing it makes the loop rewind 7 measures before each replay.

A shortcut for typing numbers to reach a specific sound or track fast. In lesson mode, pressing it while looping tells Repeat & Learn to rewind a full 8 measures before playing the section again.

tip: Use a higher number like 8 when the phrase you're drilling spans several measures and you want the whole run-up included in the loop.

A shortcut to jump straight to a specific sound, backing pattern, or song by typing its number, instead of scrolling through the list with the dial. Press [9] and you land on item number 9 in whatever list you're browsing.

tip: When you already know the exact number of the Voice or Style you want, typing it is much faster than turning the dial. During Repeat & Learn playback, number buttons [1]–[9] also set how many measures the lesson jumps back.

Nudges whatever you're editing down by one step — the previous sound, a slower tempo, a quieter volume. It's also the 'No, cancel' button when the screen asks you to confirm something.

tip: If you accidentally start a save or overwrite and want out, [-] (NO) backs you out safely. Hold it down to scroll rapidly downward through long Voice or Style lists.

Nudges whatever you're editing down by one step — the previous sound, a slower tempo, a quieter volume. It's also the 'No, cancel' button when the screen asks you to confirm something.

tip: If you accidentally start a save or overwrite and want out, [-] (NO) backs you out safely. Hold it down to scroll rapidly downward through long Voice or Style lists.

Your file cabinet button. Press it to save your recordings and favorite setups to a USB stick, load them back in, erase old files, or format a new USB drive. It's also where you set up the wireless connection to an iPhone or iPad.

tip: While the FILE CONTROL display is showing, the keyboard produces no sound and only file-related buttons work — press [EXIT] to get back to playing. If you plug in an unformatted USB stick, this button jumps straight to the Format option.

The deep-settings menu. This is where you go to fine-tune things that aren't on their own dedicated button — like retuning the whole instrument, changing the reverb flavor, adjusting how touch-sensitive the keys feel, or turning off the auto power-off timer.

tip: There are dozens of items here, so press the CATEGORY up/down arrows repeatedly to hunt for the one you want. Many of these settings survive power-off and can be backed up to a computer, so once you dial in your preferences you usually won't need to redo them.

Your one-button 'just let me play piano' button. A quick tap opens a dedicated piano mode where you can pick the piano and the room it sounds like it's in. Holding it down wipes away layers, splits, and effects so the whole keyboard is a clean grand piano again.

tip: Hold it for over a second whenever your settings get cluttered and you just want a pure grand piano sound back. Note the quick-tap Piano Room and the hold-down Piano Reset are two different things even though it's the same button.

The button for picking a song to play along with or listen to — either the built-in MIDI songs and your own recordings, or WAV audio files from a USB stick. It's also where you start setting up a recording of your own performance.

tip: If no USB drive is plugged in, this button only shows the MIDI Song list. Once a drive is connected, press it repeatedly to flip between the Song and Audio lists. WAV files must be 44.1 kHz, 16-bit stereo to play back.

The button for your automatic backing band. Press it to browse rhythm-and-accompaniment patterns (pop, jazz, waltz, and more) that follow the chords you play with your left hand. Hold it down and the instrument listens to a rhythm you play and recommends matching Styles.

tip: Always press [STYLE] first before using any Style-related buttons like [ACMP ON/OFF] — otherwise those functions won't respond. Styles 174 and 188–205 (Pianist category) have no drums, so they stay silent until you play a chord with accompaniment turned on.

The button for choosing which instrument the keys sound like — grand piano, organ, guitar, strings, sax, drums, and hundreds more. Hold it down while a built-in song is loaded to swap out the song's melody instrument on the fly.

tip: Selecting Voice 000 activates One Touch Setting, which automatically picks the best-matching Voice whenever you choose a Style or Song. When holding it during Song playback, press [VOICE] again to toggle between changing the right-hand (Melody R) and left-hand (Melody L) parts.

A shortcut for when you know the vibe you want but not the technical settings. Pick a music genre or song type and the instrument sets up the right sound and backing band for you in one step, ready to start as soon as you play a chord.

tip: This is the fastest way to get a great-sounding setup without hunting through Voices and Styles separately. Because it auto-enables the accompaniment, just play a chord with your left hand and the backing starts immediately.

Splits your keyboard into two zones so your left hand plays one instrument (like a bass) and your right hand plays another. Press once to turn it on, press again to turn it off. You'll see the Split Voice name appear on the screen when it's active.

tip: Hold the button down for a second to jump straight to picking which instrument the left hand plays. You can move where the split happens via Function > 'Split Point' (range A-1 to C7); note the same Split Point is shared with the auto-accompaniment chord zone.

Stacks a second sound on top of your main sound so both play together every time you press a key — for example, piano with strings underneath for a fuller, richer tone. Press once for on, again for off.

tip: Turning Dual on automatically picks a layer that suits your current Main Voice, but hold the button for a second to choose your own. Classic combos are piano + strings or piano + choir; keep the Dual volume lower than the Main so it enriches rather than overwhelms (adjust via Function 'Dual Volume').

Automatically adds extra notes or effects to what your right hand plays, so a single melody line sounds fuller — like having a backing singer harmonize with you, or adding echo and trills. Press once for on, again for off.

tip: Many Harmony types (01–10, 13) only work when auto-accompaniment is on and you're playing chords with your left hand — the harmony follows those chords. Other types like Echo (15–18), Tremolo (19–22) and Trill (23–26) work just by playing notes. Hold the button a second to try different types.

The screen that shows you everything the instrument is doing — which sound is selected, the tempo, chord names, and more. It can also show sheet music or song lyrics so you can play or sing along.

tip: If you ever get lost in a menu, press [EXIT] to jump back to the main home screen. If the screen looks too faint or too dark, adjust the CONTRAST knob on the rear panel.

This is where you plug in a USB memory stick to save your recordings and settings, or to play back songs and WAV audio files from the stick. Audio recording (your performance saved as a WAV file) requires a drive plugged in here.

tip: Format new flash drives on the instrument itself (via [FILE CONTROL]) for reliable operation. Never unplug the drive or turn off power while it's being accessed — you'll corrupt your data. Only one drive can be connected at a time, and it should be plugged in with the correct orientation.

Lets you smoothly slide a note's pitch up or down while you hold it, like a guitarist bending a string or a singer sliding into a note. Push it away or pull it back, then let go and the pitch snaps back to normal.

tip: Default range is 2 semitones (a whole step), which suits guitar-style bends; increase 'Pitch Bend Range' up to 12 (a full octave) for dramatic dives. Note the effect may not apply to the Split Voice when auto-accompaniment is on.

This is the full-size set of piano keys you play. Because it's weighted like a real piano — heavier in the low notes, lighter up high — how hard you press changes how loud and bright each note sounds, giving you expressive control.

tip: Adjust Touch Response via Function 'Touch Response' (1 Soft, 2 Medium, 3 Hard, 4 Fixed) to match your playing strength — pick Fixed if you want every note the same volume regardless of pressure. Certain keys held during power-on trigger resets: highest white key clears backup data, lowest key disables Auto Power Off.

Turn this to make the text on the screen darker or lighter until it's easiest to read. It doesn't affect the sound at all — it just fixes a screen that looks too washed out or too dark.

tip: If the display suddenly looks unreadable after moving the instrument or a temperature change, this knob is almost always the fix — adjust it before assuming anything is broken.

Controls how loud your microphone is when you sing along. Turn it up to hear more of your voice through the instrument's speakers, down to reduce it.

tip: Set this to minimum before powering on and before connecting/disconnecting the mic. While singing, raise it until the on-screen INPUT LEVEL meter moves but does NOT stay pinned to the far right — if it maxes out, you'll get distortion. Use a standard dynamic microphone.

This connects the piano to a computer, phone, or tablet so it can 'talk' to music software — recording what you play as note data, or letting apps control the instrument. Unlike the other USB port, this one is for connecting to a computer, not a memory stick.

tip: Connect directly to the computer, not through a USB hub. This carries MIDI (note/performance data), not audio — to record actual sound to a computer you'd use the audio output or convert a User Song. Check the free 'Computer-related Operations' guide from Yamaha Downloads for driver and setup details.

Plug in the included footswitch here and pressing it holds your notes ringing after you lift your fingers off the keys, just like a piano's right pedal. When you use a piano-family Voice like Natural! Grand Piano, it also adds Damper Resonance for a richer, more realistic sustained sound. Note that it doesn't affect a Split Voice (the sound in your left-hand zone).

tip: Connect and disconnect the footswitch only while the power is OFF — if you press the switch while turning power on, the pedal's polarity flips and sustain works backwards. If you want that lush piano-string ringing, use the FC3A foot pedal, which unlocks Half Pedal so you can control how much sustain you get by how far you press.

This lets you add a proper set of three piano pedals, just like an acoustic grand. The right pedal sustains all notes (and supports Half Pedal, so pressing partway gives partial sustain); the center pedal sustains only the notes you're already holding while later notes play normally; the left pedal makes notes softer and slightly mellower. These pedals only affect the Main, Dual, and Harmony sounds — not the Split Voice.

tip: Connect or disconnect the pedal unit only with the power OFF. If you have both a footswitch in the SUSTAIN jack and the pedal unit connected, the last pedal you press wins for the damper effect.

Plug your headphones in here for private practice — the built-in speakers switch off automatically so only you hear the sound. You can also run a cable from here into an amp, speakers, or a recorder to send the piano's sound out to a bigger system.

tip: When you connect an amp or mixer instead of headphones, go to "Output Gain" and switch from "Headphones" to "Line Out" or "Fixed" to avoid distortion. Never route this output back into the AUX IN jack — it creates a feedback loop that can damage both units. Always power up the instrument first, then the external device (reverse when shutting down).

Plug your phone or music player in here and its music plays through the piano's speakers, so you can play or sing along with your favorite backing tracks. Note that this incoming sound cannot be captured by Song (MIDI) recording, but it CAN be included when doing Audio recording or converting a User Song to audio.

tip: If the backing track is too loud or too quiet compared to your playing, press [FUNCTION], use the CATEGORY buttons to find "AUX IN Level," and adjust it with the dial. Power on the external device first, then the instrument, to avoid a damaging pop.

Plug in a microphone here and sing along with your playing or with a Song — your voice comes out mixed with the music through the piano's speakers. You get effects like reverb to sweeten your vocals, plus tools to keep the level even and clean.

tip: Before turning the power on, set the MIC VOLUME knob to minimum, then bring it up while singing so the INPUT LEVEL meter never pins to the far right (that causes distortion). Use a dynamic microphone, not a condenser. Try the BRIGHTER preset to help your voice cut through the music, or LOUDER to even out soft and loud singing. Note that the mic sound can't be captured by Song (MIDI) recording but can be by Audio recording.

This is where the power adaptor plugs in to run the instrument — it has nothing to do with the sound itself. Connect the adaptor here and then to a wall outlet to turn the piano on.

tip: Use only the specified PA-150 adaptor (or Yamaha equivalent) — the wrong adaptor can damage or overheat the instrument. If your adaptor has a removable plug, make sure the plug is fully clicked into place and never touch the metal parts. Unplug it from the wall when not using the instrument for a long time, since a small amount of power is used even when switched off.