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.

●Full-keyboard ABC (Auto Bass Chord) provides ac-

companiment as you play across the entire

keyboard.

●24 Solo Styleplay variations make it simple to pro-

duce rich, complex harmonies.

●10-track performance memory records and plays

back your keyboard performances.

●Internal 3.5" floppy disk drive provides extended Per-

formance Memory capacity and Disk Orchestra play-

back capability – one blank floppy disk for recording

and one Disk Orchestra Collection disk with corre-

sponding 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.

Contents
Auto Bass Chord (ABC) ....................20
■Single-finger Accompaniment ...........20
■Fingered Accompaniment .................21
■Full-keyboard ABC ............................22
■Volume Control.................................. 22
■Changing the ABC Split Point ...........22
■Special Modes................................... 22
Disk Styles ............................................23
■Selecting & Loading Disk Styles........ 23
■Using a Loaded Disk Style ................24
Solo Styleplay ......................................25
■Using Solo Styleplay .........................25
■Harmonization Variations ..................25
■The Foot Switch & Solo Styleplay .....25
Disk Orchestra .....................................26
■Automatic Performance..................... 26
■Playing Back only Specific Parts....... 27
■Volume Control.................................. 28
■
Guided Right- and Left-hand Practice
..28
■Repeat Functions ..............................29
■Other Playback Controls ...................30
■DISK ORCHESTRA COLLECTION
Disk Copy.......................................... 30
■Playing Other Types of Music Data... 30
Performance Memory......................... 31
Easy One-pass Recording & Playback
.31
Multi-track Recording & Playback..... 32
■Adding New Tracks ...........................34
■Punch-in Recording........................... 35
■Playback............................................ 36
The Chord Sequence Function.......... 37
Disk Control.......................................... 38
■Formatting a New Disk...................... 38
■Copying Songs.................................. 39
■Deleting a Song................................. 40
■Error Messages................................. 40
Utility Mode 1........................................ 41
U1: Touch Sensitivity ............................41
U2: Accompaniment Volume Mode....... 42
U3: Individual Key Tuning .....................42
U4: Style Tempo Switching................... 42
U5: Auto Synchro Start Switching......... 43
U6: Random All Song Repeat............... 43
U7: Octave Shift.................................... 43
U8: Mute................................................ 43
U9: Minor Harmonization ......................43
Ub: Standard MIDI File Playback Mode 43
Utility Mode 2........................................ 44
u1:
DOC Common Voice Conversion
........44
u2: Save Panel Settings........................ 45
u3: Load Panel Settings........................ 45
u4: Save Individual Key Tuning............. 45
u5: Load Individual Key Tuning............. 46
u6: Quantize Song Data........................ 46
MIDI Functions..................................... 47
■Send and Receive Channel Select.... 47
■Local Control ON/OFF....................... 48
■Program Change ON/OFF ................48
■Control Change ON/OFF................... 48
■The Multi-Timbre Mode .....................49
■The Split Send Mode......................... 49
■MIDI Clock Select.............................. 50
■Panel Data Send ...............................50
■MIDI Transpose Transmit.................. 50
■The DOC Common Voice Mode........ 50
The Connectors ...................................51
Troubleshooting.................................. 52
Options................................................... 52
Index .......................................................53
MIDI Data Format.................................... i
Specifications......................................... v
Fingering Chart..................................... vi
MIDI Implementation Chart................ xi
Taking Care of Your PDP-400............ 1
The Panel Controls............................... 2
Preparation.............................................. 4
The Volume Controls ...........................5
Demonstration Playback..................... 6
Voice Selection...................................... 7
■Selecting the 60 Voices....................... 7
■Keyboard Percussion ..........................8
Dual Mode................................................ 9
■Engaging the Dual Mode..................... 9
■Dual-mode Voice Balance................... 9
Split Mode.............................................. 10
■Engaging the Split Mode ...................10
■Changing the Split Voices .................10
■Changing the Split Point.................... 10
■Split Balance .....................................11
■Damper Pedal Operation in the Split
Mode ................................................. 11
Digital Reverb Effects........................ 12
■Selecting a Reverb Effect.................. 12
■Reverb Depth Control........................ 12
The Keyboard & Polyphony............. 13
Pitch Wheel........................................... 13
Modulation Wheel ...............................13
The Pedals............................................. 14
■Damper Pedal ...................................14
■Foot Switch (Multi-function)............... 14
Pan........................................................... 15
Transposition .......................................15
Pitch Control......................................... 16
■The Pitch Display ..............................16
Accompaniment................................... 17
■Style Selection................................... 17
■Tempo Control................................... 17
■Starting the Accompaniment .............18
■Fill-ins................................................ 19
■Stopping the Accompaniment ...........19
■Metronome ........................................ 19

●AWM (Advanced Wave Memory) tone generator sys-

tem offers a range of 60 rich, realistic voices.

●A maximum of 32-note polyphony permits use of so-

phisticated playing techniques.

●Piano-like touch response provides extensive expres-

sive 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-orches-

trated rhythm, bass, and chord accompaniment. 50

additional accompaniment styles are provided on

floppy disk (Style Disk).

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.