PRODUCT SAFETY MARKINGS: Yamaha electronic
products may have either labels similar to the graphics
shown below or molded/stamped facsimiles of these
graphics on the enclosure. The explanation of these graphics appears on this page. Please observe all cautions indicated on this page and those indicated in the safety instruction section.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The exclamation point with the equilateral triangle is intended to alert the user
to the presence of important operating
and maintenance (servicing) instructions in the literature accompanying the
product.
ENVIRONMENTAL ISSUES: Yamaha strives to produce products that are both user safe and environmentally
friendly. We sincerely believe that our products and the
production methods used to produce them, meet these
goals. In keeping with both the letter and the spirit of the
law, we want you to be aware of the following:
Battery Notice: This product MAY contain a small nonrechargeable battery which (if applicable) is soldered in
place. The average life span of this type of battery is approximately five years. When replacement becomes necessary, contact a qualified service representative to perform
the replacement.
Warning: Do not attempt to recharge, disassemble, or
incinerate this type of battery. Keep all batteries away
from children. Dispose of used batteries promptly and as
regulated by applicable laws. Note: In some areas, the
servicer is required by law to return the defective parts.
However, you do have the option of having the servicer
dispose of these parts for you.
Disposal Notice: Should this product become damaged
beyond repair, or for some reason its useful life is considered to be at an end, please observe all local, state, and
federal regulations that relate to the disposal of products
that contain lead, batteries, plastics, etc.
The lightning flash with arrowhead
symbol within the equilateral triangle is
intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that
may be of sufficient magnitude to constitute a risk of electrical shock.
IMPORTANT NOTICE: All Yamaha electronic products
are tested and approved by an independent safety testing
laboratory in order that you may be sure that when it is
properly installed and used in its normal and customary
manner, all foreseeable risks have been eliminated. DO
NOT modify this unit or commission others to do so unless specifically authorized by Yamaha. Product performance and/or safety standards may be diminished. Claims
filed under the expressed warranty may be denied if the
unit is/has been modified. Implied warranties may also be
affected.
SPECIFICATIONS SUBJECT TO CHANGE: The
information contained in this manual is believed to be
correct at the time of printing. However, Yamaha reserves
the right to change or modify any of the specifications
without notice or obligation to update existing units.
NOTICE: Service charges incurred due to lack of knowledge relating to how a function or effect works (when the
unit is operating as designed) are not covered by the
manufacturer’s warranty, and are therefore the owners
responsibility. Please study this manual carefully and consult your dealer before requesting service.
NAME PLATE LOCATION: The graphic below indicates the location of the name plate. The model number,
serial number, power requirements, etc., are located on
this plate. You should record the model number, serial
number, and the date of purchase in the spaces provided
below and retain this manual as a permanent record of
your purchase.
PERSONAL DIGITAL PIANO MODEL PDP-400
AUX OUT
SPEAKER
AUX IN
OFF
ON
L
R
R
MIDI
IN
OUT
THRU
L/L+R
FOOT SWITCH
DAMPER
Model _____________________________________
92-469-
Serial No.__________________________________
Purchase Date _____________________________
➀
Introduction
Thank you for choosing a Yamaha PDP-400. Your PDP-400 is a fine musical instrument that employs advanced
Yamaha music technology. With the proper care, your PDP-400 will give you many years of musical pleasure.
● AWM (Advanced Wave Memory) tone generator system offers a range of 60 rich, realistic voices.
● A maximum of 32-note polyphony permits use of sophisticated playing techniques.
● Piano-like touch response provides extensive expressive control and outstanding playability.
● Dual and split play modes allow 2 voices to be played
simultaneously or individually with the left and right
hands.
● 24 exciting accompaniment styles can be used to
provide rhythm-only accompaniment or fully-orchestrated rhythm, bass, and chord accompaniment. 50
additional accompaniment styles are provided on
floppy disk (Style Disk).
● Full-keyboard ABC (Auto Bass Chord) provides accompaniment as you play across the entire
keyboard.
● 24 Solo Styleplay variations make it simple to produce rich, complex harmonies.
● 10-track performance memory records and plays
back your keyboard performances.
● Internal 3.5" floppy disk drive provides extended Performance Memory capacity and Disk Orchestra playback capability – one blank floppy disk for recording
and one Disk Orchestra Collection disk with corresponding score are provided.
● MIDI compatibility, GM voices, and a range of MIDI
functions make the PDP-400 useful in a range of ad-
vanced MIDI music systems.
In order to make the most of your PDP-400’s performance potential and features, we urge you to read this Own-
er’s Manual thoroughly, and keep it in a safe place for later reference.
Contents
Taking Care of Your PDP-400 ............ 1
The Panel Controls ............................... 2
Your PDP-400 will give you years of playing pleasure if you observe the simple rules given below:
1
1. Avoid Humidity & Heat
Avoid placing the PDP-400 in areas that are subject to excessive humidity or heat. Do not leave the instrument near heaters
or in a car exposed to direct sunlight, for example.
2. Avoid Dust & Moisture
Avoid locations in which the instrument is likely to be exposed
to excessive dust or moisture.
3. Power-off Before Connecting
Connections between the PDP-400 and any other device must
be made with both pieces of equipment turned off.
4. Handle With Care
Never apply excessive force to the controls, connectors or
other parts of your PDP-400, and avoid scratching or bumping
it with hard objects. Further, always turn the POWER switch off
after use.
5. Clean Carefully
Clean the cabinet and keys of your PDP-400 only with a clean,
slightly damp cloth. A neutral cleanser may be used if desired.
Never use abrasive cleansers, waxes, solvents or chemical
dust cloths since these can dull or damage the finish.
6. Never Tamper With the Internal Circuitry
Never open the PDP-400 cabinet and touch or tamper with the
internal circuitry. Tampering with the circuitry can result in electrical shock!
7. Electric Interference
Since the PDP-400 contains digital circuitry, it may cause interference if placed too close to radio or television receivers. If
this occurs, move the instrument further away from the affected
equipment.
8. Check Your Power Supply
Make sure that your local AC mains voltage matches the voltage specified on the name plate on the rear panel. In some
areas a voltage selector may be provided on the rear panel.
Make sure that the voltage selector is set for the voltage in
your area.
9. Name Plate Location
The PDP-400 name plate, including the unit’s serial number, is
located on the rear panel of the main unit.
10.Handling Floppy Disks
Yamaha Disk Orchestra Collection and Style Disk are writeprotected, and therefore cannot be used to save songs. To save
Performance Memory songs from the Performance Memory, a
blank floppy disk should be used (one blank disk is supplied
with the PDP-400).
Taking Care of Your Floppy Disks
■ Do NOT eject the disk during recording or playback, or at
any time when the disk drive lamp is lit. Doing so may damage both the disk and the FDD.
■ Do NOT turn the PDP-400 on or off while the disk is in the
drive.
■ Always eject the disk before turning the PDP-400 off.
■ When ejecting a floppy disk from the disk drive:
• To eject a floppy disk, press the eject button slowly as far as
it will go. Then when the disk Is fully ejected, remove it by
hand.
• The disk may not be ejected properly if the eject button is
pressed too quickly or if it is not pressed in far enough. (The
eject button may become stuck halfway with the disk extending from the slot by only a few millimeters). If this is the
case, do not attempt to pull out the partially ejected disk.
Doing so may damage the disk drive mechanism and/or the
floppy disk. To remove a partially ejected disk, try pressing
the eject button once again or push the disk back into the
slot, then repeat the eject procedure carefully.
■ Do not insert anything but floppy disks into the disk
drive. Other objects may cause damage to the disk
drive or floppy disk.
■ Use only double-sided double density (2DD) 3.5-inch
floppy disks with the PDP-400.
Precautions Regarding Floppy Disk Use
■ Never open the disk’s shutter. Dirt or dust on the
Internal magnetic surface will cause data errors.
■ Never leave disks near a speaker, TV, or other device that emits a strong magnetic field.
■ Do not store disks in places exposed to direct sunlight or sources of high temperature.
■ Do not place heavy objects such as books on top of
a disk.
■ Avoid getting the disks wet.
■ Be sure to store the disks in environmental condi-
tions as specified below:
• Storage temperature: 4° to 53°C (39° to 127°F).
• Storage humidity: 8 to 90% relative humidity.
• Store in an area free from dust, sand, smoke, etc.
■ Be sure to apply the disk label at the proper position.
When changing the label never cover the old label
with a new label; always remove the old label first.
Head Cleaning
The head of the disk drive unit will get dirty as you use
it eventually causing data errors. If this occurs, clean
the head with a 3.5 inch head cleaning disk (available
from most computer supply stores).
Data Backup
It is recommended that you copy your recorded songs
to another disk for backup (see page 39). If the original
disk is damaged or your song is deleted, the backup
disk can be used instead of the original.
Attach the supplied music stand to the PDP-400 by inserting it into the groove
at the rear of the instrument’s top panel.
DAMPER
FOOT SWITCH
■The Power Switch
POWER
The supplied FC4 foot switch should normally be connected to the DAMPER
jack. It (or an optional FC4 or FC5 foot switch) can also be connected to the
FOOT SWITCH jack — see page 14 for details.
In some areas the power cord must be connected to a socket on the rear panel of
the instrument before being plugged into an AC wall outlet. A plug adaptor may
also be provided to match the pin configuration of the AC wall outlets in your area.
Make sure the power cord is properly connected to both the instrument and a convenient AC wall outlet, then press the [POWER] switch located to the left of the
keyboard once to turn the power on. Press the [POWER] switch again to turn the
power off.
When the power is initially turned on, the PIANO voice selector LED will
light, the POP style selector LED will light, and “72” will appear on the TEMPO
display.
■Headphones
A pair of stereo headphones can be plugged in here for private practice or latenight playing. The internal speaker system is automatically shut off when a pair of
If you will be using the PDP-400 with an external sound system connected via
the AUX OUT jacks, the internal amplifier and speaker system can be turned off by
using the rear-panel SPEAKER ON OFF switch.
The Volume Controls
5
The PDP-400 has several volume controls that give
you extra versatility in creating the required sound.
The MASTER VOLUME control adjusts the overall volume of sound
MASTER VOLUME
MINMAX
produced by the PDP-400. It also adjusts headphone volume when a pair of headphones is plugged into the PHONES jack.
Initially set the MASTER VOLUME control about half way between the
“MIN” and “MAX” settings. Then, when you start playing, adjust the control for
the most comfortable listening level.
● Auto Accompaniment ............................................................................................................................
AUTO ACCOMPANIMENT
BASS
RHYTHM
MIDI/
TRANSPOSE
MAX
MIN
CHORD 1
MAX
MIN
CHORD 2
MAX
MIN
BASS
MAX
Separate volume controls are provided for the RHYTHM, CHORD 1,
CHORD 2, and BASS sound. These volume controls let you set up the best
balance between the various accompaniment parts when the AUTO BASS
CHORD (ABC), Disk Orchestra Collection playback, and Performance Memory
features are used, and the RHYTHM volume control can be used to balance the
keyboard and rhythm sound when only rhythm accompaniment is used.
The volume of the keyboard can be independently adjusted by using the BASS
control while holding the [MIDI/TRANSPOSE] button — this is particularly
handy for adjusting the balance when recording the PDP-400 sound.
DISK CONTROL
CHORD
REC
PAUSE
COPY
FORMAT
SEQUENCE
MIN
The Internal Amplifier &
Speaker System
● Other Volume Control Modes
The Auto Accompaniment volume controls can be assigned to other functions
via the “Accompaniment Volume Mode” utility function (page 42). They can be
used to control modulation, pitch bend, and expression; or individual reverb
depth for the rhythm, chord 1, chord 2, and bass parts.
• If any or all of the Auto Accompaniment volume controls are set to their minimum
NOTES
The PDP-400 features a powerful stereo amplifier delivering 20 watts per channel to a highperformance speaker system . The PDP-400 speaker system employs two 13-centimeter
speaker units that deliver exceptionally rich sound with natural response from powerful lows
to shimmering highs.
positions, no sound will be produced by the corresponding parts. The maximum
control positions produce the normal volume levels.
The PDP-400 features 13 demonstration tunes that demonstrate some of its voices.
Here’s how you can select and play the demo tunes.
CLAVINOVA
TONE
GUIDE
LEFT/2TR ORCH/3-10TR RHYTHM
7
DISK CONTROL
CHORD
F F
REC
PAUSE
COPY
FORMAT
REW
SEQUENCE
2
90
STYLE
AUTO BASS CHORD
CHORD 1
CHORD 2
SOLO
POP
SINGLE FINGERFULL KEYBOARD FINGERED
STYLEPLAY
JAZZ
MAX
MIN
ROCK
MAX
SYNCHRO
INTRO/ENDING
START/STOP
START
SWING
JAZZ
BALLAD
VARIATION NORMAL
MIN
3
UPRIGHT
BASS
BLUE-
DANCE
SLOW
16BEAT
ROCK’N’
GRASS
POP
ROCK
BALLAD
ROLL
16BEAT
16BEAT
DISK
COUNTRY
ROCK
POWER
POP
SHUFFLE
STYLE 1
SHUFFLE
SHUFFLE
HOUSE
METRONOME
BIG BAND
BOSSA
CHA-CHA
MARCH
WALTZ
DISK
JAZZ
BOOGIE
SAMBA
RHUMBA
POLKA
TAP TEMPO
STYLE 2
WALTZ
456
ELEC
BASS
VOICE
BEAT
CLAVINOVA
PIANO E.PIANO HARPSI VIBES GUITAR STRINGS SPLIT
TONE
1
234567
8
90
UPRIGHT
ELEC
ORGAN CHOIR
DRUMS VOICE 13-60
BASS
BASS
DRUMSVOICE 13-60
DISK ORCHESTRA / PERFORMANCE MEMORY
SONG NUMBER
PHRASE
SONG
REPEAT
SELECT
/
START/STOP
RIGHT/1TR
DEMO
PIANOE.PIANOHARPSIVIBESGUITARSTRINGS
1
8
ORGANCHOIR
AUTO ACCOMPANIMENT
BASS
RHYTHM
DEMO
REVERB
FOOT SWITCH
MAX
SOFT
ROOM
HALL 1
SOSTENUTO
MASTER VOLUME
HALL 2
START/STOP
MIDI/
COSMIC
SOLO STYLEPLAY
TRANSPOSE
MIN MAX
MIN
ZPress the [DEMO] button .......................................................................................................................
DEMO
XSelect a Demo Tune ...............................................................................................................................
PIANOE.PIANOHARPSIVIB
1
8
ORGANCHOIR
CLAVINOVA
TONE
2
90
3
UPRIGHT
BASS
45
ELEC
BASS
DR
The 13 demo tunes are selected via the VOICE selectors — the voice selectors
will flash in sequence when the [DEMO] button is pressed. Press a selector to start
playback of the corresponding tune. You can also select continuous repeat playback
of all demo tunes by pressing the [START/STOP] button. The demo tunes will
play back in sequential or random order, depending on the setting of the “Random
All Song Repeat” utility function described on page 43.
CAdjust the Volume ..................................................................................................................................
MASTER VOLUME
MINMAX
Use the MASTER VOLUME control to adjust the volume, and play along on
the keyboard if you like.
• The tempo cannot be adjusted during demo playback.
PIANOF. F. ChopinEtude Op.25-1 “Aeolian Harp” or “The Shephered Boy”
CLAVINOVA TONE D. Foster“Water Fountain” from “The Secret of My Success”
HARPSICHORDJ. S. BachItalienisches Konzert (Italian Concerto) BWV 971 3rd movement
GUITARI. AlbenizAsturias
STRINGSA. VivaldiThe Four Seasons No. 3 “Autumn” 1st movement
ORGANJ. S. BachSinfonia from Kantate (Cantata) 29 BWV 29
CHOIRW. A. MozartRequiem K. 626 No. 6 “Lacrimosa”
* The demonstration pieces listed above are short excerpts from the original compositions.
The PDP-400 has a total of 60 different voices
that can be selected in a number of ways. There’s
also a “Keyboard Percussion” mode that let’s you
play a range of drums and percussion instruments
on the keyboard.
PIANOE.PIANOHARPSIVIBESGUITARSTRINGS
1
8
ORGANCHOIR
CLAVINOVA
TONE
2
90
3
UPRIGHT
BASS
456
ELEC
BASS
DRUMSVOICE 13-60
7
7
AUTO ACCOMPANIMENT
BASS
RHYTHM
CHORD 1
DEMO
REVERB
FOOT SWITCH
MAX
MAX
ROOM
SOFT
HALL 1
SOSTENUTO
MASTER VOLUME
HALL 2
START/STOP
MIDI/
COSMIC
SOLO STYLEPLAY
TRANSPOSE
MIN MAX
MIN
MIN
STYLE
AUTO BASS CHORD
DANCE
SLOW
16BEAT
SINGLE FINGERFULL KEYBOARD FINGERED
SYNCHRO
START
ROCK’N’
SOLO
POP
POP
ROCK
BALLAD
ROLL
STYLEPLAY
16BEAT
16BEAT
ROCK
POWER
JAZZ
POP
SHUFFLE
SHUFFLE
HOUSE
ROCK
INTRO/ENDING
BIG BAND
BOSSA
CHA-CHA
MARCH
SWING
JAZZ
BOOGIE
SAMBA
RHUMBA
POLKA
BALLAD
VARIATION NORMAL
CHORD 2
MAX
START/STOP
MIN
VOICE
BEAT
BLUEGRASS
DISK
COUNTRY
SHUFFLE
WALTZ
JAZZ
WALTZ
CLAVINOVA
PIANO E.PIANO HARPSI VIBES GUITAR STRINGS SPLIT
STYLE 1
METRONOME
TONE
1
234567
8
90
UPRIGHT
TAP TEMPO
ELEC
ORGAN CHOIR
DRUMS VOICE 13-60
BASS
BASS
DISK
STYLE 2
DISK ORCHESTRA / PERFORMANCE MEMORY
SONG NUMBER
PHRASE
SONG
GUIDE
REPEAT
SELECT
/
START/STOP
F F
LEFT/2TR ORCH/3-10TR RHYTHM
RIGHT/1TR
REW
■Selecting the 60 Voices
● Voices 1-12: Direct Panel Selection......................................................................................................
PIANOE.PIANOHARPSIVIBESGUITARSTRINGSSPLIT
1
8
ORGANCHOIR
CLAVINOVA
TONE
2
90
3
UPRIGHT
BASS
456
ELEC
BASS
DRUMSVOICE 13-60
7
● The VOICE 13-60 [▲] and [▼] Buttons..................................................................................................
VOICE 13-60
14
Of the PDP-400’s 60 voices, 12 are “panel voices” which
can be directly accessed by pressing the corresponding
VOICE selector. When a voice selector is pressed the corresponding indicator will light and the number of the selected
voice will appear on the TEMPO display while the voice
selector is held.
The PIANO voice is automatically selected when the
power is initially turned on.
Use the [▲] and [▼] buttons immediately to the right of
the [VOICE 13-60] button to select a voice number between
13 and 60. Press either button briefly to select the next voice
number in the specified direction, or hold the button for continuous scrolling in the specified direction. The [VOICE 13-60] indicator will light and the voice number will appear on
the TEMPO display during selection.
DISK CONTROL
CHORD
REC
PAUSE
COPY
FORMAT
SEQUENCE
If a panel voice (1-12) is selected, the last selected voice in
the 13-60 range can be instantly re-selected simply by pressing the [VOICE 13-60] button. The [VOICE 13-60] button
will initially select voice number 13 (BRASS) after the power
is turned on.
• Voice number 13 can be instantly selected by pressing