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MIDI, the Musical Instrument Digital Interface, is a world-standard communication interface that allows
MIDI-compatible musical instruments and equipment to share musical information and control one another.
This makes it possible to create “systems” of MIDI instruments and equipment that offer far greater versatility
and control than is available with isolated instruments.
The PDP-400 has 11 MIDI functions that are accessed by pressing the appropriate VOICE selector while
holding the [MIDI/TRANSPOSE] button. The MIDI functions accessed by the various VOICE selectors are
shown in the following chart:
Function Selector
1. Send Channel Select PIANO
2. Receive Channel Select CLAVINOVA TONE
3. Local ON/OFF E. PIANO
4. Program Change ON/OFF HARPSI
5. Control Change ON/OFF VIBES
6. Multi-Timbre Mode ON/OFF GUITAR
7. Split Send Mode STRINGS
8. MIDI Clock Select ORGAN
9. Panel Data Transmit CHOIR
10. MIDI Transpose Transmit UPRIGHT BASS
11. DOC Common Voice Mode ON/OFF ELEC BASS
The available settings and procedure for each MIDI function are described below.
MIDI Functions
■ Send and Receive Channel Select
In any MIDI control setup, the MIDI channels of the transmitting and receiving equipment must be matched for
proper data transfer (there are 16 MIDI channels). An “OMNI” receive mode is also available, which allows reception
on all 16 MIDI channels. In the OMNI mode it is not necessary to match the receive channel of the receiving device to
the transmit channel of the transmitting device.
ZHold [MIDI/TRANSPOSE] and press [PIANO] to set the send channel or
[CLAVINOVA TONE] to set the receive channel.
XUse TEMPO [▲] and [▼] buttons to select the desired channel (the selected
channel number is shown on the TEMPO display — the OMNI ON receive
mode is indicated by “ALL” on the display).
CRelease [MIDI/TRANSPOSE].
NOTES
• When the power is initially turned ON, MIDI receive is set to the OMNI ON mode
and the transmit channel is set to 1.
S1...... S16
Send channel
r1...... r16
Receive channel
ALL
OMNI ON
NOTES
• Always use a high-quality MIDI cable to connect MIDI OUT to MIDI IN terminals.
Never use MIDI cables longer than about 15 meters, since cables longer than this
can pick up noise which can cause data errors.
• When using the PDP-400 with other MIDI equipment, always refer to the MIDI
specifications (implementation chart and MIDI data format) of the equipment used
to ensure compatibility.
TAP TEMPO
METRONOME
SONG NUMBER
MAX
MIN
MAX
MIN
MAX
MIN
MIN MAX
VARIATION NORMAL
INTRO/ENDING
START/STOP
AUTO BASS CHORD
SOLO
STYLEPLAY
SYNCHRO
START
SINGLE FINGERFULL KEYBOARD FINGERED
JAZZ
ROCK
POP
DANCE
POP
16BEAT
BALLAD
ROCK’N’
ROLL
ROCK
SHUFFLE
SWING
BOOGIE
BIG BAND
SAMBA
BOSSA
RHUMBA
CHA-CHA
POLKA
MARCH
JAZZ
WALTZ
WALTZ
BLUE-
GRASS
STYLE
POWER
HOUSE
16BEAT
POP
16BEAT
SHUFFLE
SLOW
ROCK
COUNTRY
SHUFFLE
DISK
STYLE 1
DISK
STYLE 2
JAZZ
BALLAD
PIANO E.PIANO HARPSI VIBES GUITAR STRINGS SPLIT
ORGAN CHOIR
UPRIGHT
BASS
ELEC
BASS
DRUMS VOICE 13-60
CLAVINOVA
TONE
VOICE
8
1
2
3
4567
90
DISK ORCHESTRA / PERFORMANCE MEMORY
PHRASE
REPEAT
CHORD
SEQUENCE
REC
FORMAT
COPY
PAUSE
F F
REW
START/STOP
SONG
SELECT
RIGHT/1TR
LEFT/2TR ORCH/3-10TR RHYTHM
/
DISK CONTROL
GUIDE
COSMIC
HALL 2
HALL 1
ROOM
SOLO STYLEPLAY
START/STOP
SOSTENUTO
REVERB
DEMO
SOFT
MIDI/
TRANSPOSE
MASTER VOLUME
RHYTHM
CHORD 1
CHORD 2
BASS
AUTO ACCOMPANIMENT
BEAT
FOOT SWITCH
PIANO E.PIANO HARPSI VIBES GUITAR STRINGS
ORGAN CHOIR
UPRIGHT
BASS
ELEC
BASS
CLAVINOVA
TONE
8
1
2
3
456
7
90
MIDI/
TRANSPOSE