Yamaha P 250 Owners Manual

							 
P-250 
11 
Table of Contents 
Basic Operation
Edit Operation
Appendix
 
About MIDI  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  73 
[MIDI] connector  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
[TO HOST] connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  73
[USB] connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73  
Setting the MIDI transmit channel [MidiOutChannel]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Setting the MIDI receive channel [MidiInChannel]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Turning the Local Control On/Off [LocalControl] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Specifying keyboard performance or song data to be transmitted via MIDI [MidiOutSelect] . . . . . . . . 74
Specifying the type of data received via MIDI [ReceiveParameter]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Specifying the type of data transmitted via MIDI [TransmitParameter] . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Transmitting the initial settings on the panel [InitialSetup] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Executing Voice Data Bulk Dump [VoiceBulkDump]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75  
Other Settings [OTHER SETTING] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  76 
Selecting a touch response [TouchResponse] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Fine-tuning the pitch [Tune] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Selecting a tuning curve for a piano voice [PianoTuningCurve] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Selecting a scale [Scale] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Setting the split point [SplitPoint] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Setting the key [Transpose]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Specifying the depth of the soft pedal [SoftPedalDepth] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Specifying the depth of string resonance [StringResonanceDepth] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 
Specifying the depth of sustain sampling for the damper pedal [SustainSamplingDepth]
 
. . . . . . . . . . . . . . . 78
Specifying the volume of the key-off sound [KeyOffSamplingDepth]. . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Selecting a pedal function for vibraphone [VibraphonePedalMode]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Assigning the START/STOP function to a pedal [PedalStart/Stop] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Selecting a type of pedal [Pedal Type] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Setting the point at which the pedal starts to affect the sound [HalfPedalPoint] . . . . . . . . . . . . . . . . . . . 78
Setting the pitch bend range [PitchBendRange]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Assigning a function to the [SONG BALANCE] slider [SongBalanceAssign]. . . . . . . . . . . . . . . . . . . . . . 79
Switching the speaker on/off [Speaker]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Locking the Master Equalizer settings [EqualizerLock]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Selecting items saved at shutdown [MemoryBackUp]  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Restoring the normal (default) settings [FactorySet]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  81 
Message List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82
Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  86
Midi Data Compatibility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  88
Preset Voice List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  90
Preset Performance List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  92
Application Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  94 
						

							 
Table of Contents 
12    
P-250 
Basic Operation
Edit Operation
Appendix
 
Listening and playing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Using the controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Changing the sound  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Changing the pitch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Adjusting the volume Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Recording, playing, and saving a song . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Using, editing, and saving a performance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Connecting the P-250 to other devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
If you . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 
						

							 
P-250 
13 
Basic Operation
 
Basic Operation 
Basic Operation includes a quick guide that explains how to connect and set up your P-250 and use its basic
functions. It also describes the concept and structure of the P-250 in plain language. 
Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Connecting to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
P-250 Quick Guide  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
P-250 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Basic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Performance Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Handling Performance Files [PERFORM.FILE]  . . . . . . . . . . . . . . . . . . . . . . . . .42
Song Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Song Playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Handling Song Files [SONG FILE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 
						

							 
Names and Functions
14   P-250
Basic Operation
Names and Functions
■Top Panel
1[PITCH] .................................... page 38
2[MODULATION] .........................page 38
3[POWER] .....................................page 16
4[MASTER VOLUME] .....................page  16
5[SONG BALANCE] ...................... page 49
6SONG SELECT [ ]/[ ] ......page 47,51
7[TRACK1][TRACK2]
[EX.TRACKS] ........................ page 47—50
8[TOP]
/ SONG[START/STOP] ............page 47,51
9[REC]............................................page 47
0[SONG FILE] ................................page 53
A[SONG SETTING] ........................page 62
B[MIDI OUT] .................................page 40
C[PANEL LOCK] .............................page 39
DTEMPO[DOWN][UP].................. page 51
ELCD buttons A[–]/[+]/ B[–(NO)]/
[+(YES)]/C[–]/[+]/D[–]/[+] ........ page 16
FLCD...........................................page 16
G[CONTRAST]..............................page 16
H[EXIT] ............................. ............ page 16
IVOICE
/PERFORMANCE buttons ............page 34
J[VOICE EDIT] ..............................page 65
K[SPLIT] ..................................... page 36
L[REVERB] ................................. page 37
M[CHORUS] ............................... page 37
N[PERFORMANCE] ........................page 41
O[MIDI SETTING] ..........................page 74
PVARIATION [†]/[π]............... page 34
QMASTER EQ EDIT [†]/[π]..........page 71
R[PERFORM. FILE] ................. page 41—42
S[OTHER SETTING] .......................page 76
T[MASTER EQUALIZER].................page 38
UPanel logos...................................page 89 
V[PHONES] ....................................page 17
MODULATION PITCH
USB
HOST SELECT MIDIMIDI THRUOUT PC-2TO HOSTUSB MacINPUTR L/MONOOUTPUTR L/MONO
TEMPO SONG SONG BALANCE
MASTER VOLUME POWER
A
C EX.TRACKSSONG FILEPANEL LOCK
TRACK1
TOP SONG SELECT
KEYBOARD SONG
MIN
ON OFFMAXREC START/STOP
SYNCHRO START NEW SONGTRACK2MIDI OUT
DOWN SONG SETTING UP
1
V
4
56
7EF
0BC
89AD
2 3 
						

							P-25015
Names and Functions
Basic Operation
W[AC INLET] .................................  page 16
XASSIGNABLE FOOT PEDAL 
[1 (SUSTAIN)][2 (SOSTENUTO)]
[3 (SOFT)][4 (AUX)] .................... page 23
YMIDI[IN][OUT][THRU] .. page 18—20,22
Z[HOST SELECT] ............... page 18—20,22
[[TO HOST].................................. page 20
\[USB] ...........................................page 19
]OUTPUT [R][L/MONO]...............page 17
_INPUT [R][L/MONO] ..................page 17
■Rear Panel Controls
MIDI ASSIGNABLE FOOT PEDALAC INLETTHRU OUT IN AUX4
SOSUTENUTO2
SUSTAIN1
SOFT3
P-250ELECTRONIC PIANO
HIGH HI-MID
MASTER EQUALIZER VOICE/PERFORMANCE
LOW
MIDI SETTINGCHORUSREVERB SPLIT CONTRAST
XG8
16 B
YES NO
DBASS
157
PERFORM. FILE MASTER EQ EDIT
VARIATIONPERFORMANCEVOICE EDIT VIBES
GUITAR
146
SYNTH. PAD
135 E.PIANO3 HARPSI.
CLAVI.
ORGAN 1
EXIT
9B A 1 G.PIANO 1
ORGAN 2
102 G.PIANO 2
STRINGS
113 E.PIANO1
CHOIR
124 E.PIANO2
OTHER SETTINGLO-MIDMIDGJKLMNO
HPQRS
U
EITF
AC INLETMIDI ASSIGNABLE FOOT PEDALINTHRUOUT 4
AU XTO HOST
USBHOST SELECTMIDI PC-2 USBMac1
SUSTAINOUTPUTR L/MONO2
SOSUTENUTO3
SOFTINPUTRL/MONO
WXYZ[\]_ 
						

							16   P-250
Basic Operation
Setting Up
■Installing the Accessories
Music rest
To attach the music rest, insert its pins into the holes on 
the P-250’s rear panel, as shown in the diagram below.
Pedal
Connect the included pedal (FC3) to the [1(SUS-
TAIN)], [2(SOSTENUTO)], or [3(SOFT)] jack on the 
rear panel. In most situations, you will likely connect 
the pedal to the [1(SUSTAIN)] jack for use as a sustain 
pedal (page 23).
■Before Powering Up
1
Make sure the [POWER] switch is OFF.
2Plug the appropriate end of the included 
power cable into the [AC INLET].
3Plug the other end of the power cable into an 
AC outlet.
■Powering Up
1
Turn the power ON by pressing the [POWER] 
switch.
2Rotate the [CONTRAST] knob to adjust the 
brightness of the LCD.
3Adjust the [MASTER VOLUME] control to a com-
fortable listening level while playing the key-
board or playing back the demonstration songs.
LCD and LCD control buttons
You can use the LCD control buttons (A, B, C, and D) 
to select and set the items displayed on the LCD. Ver-
ify the operation by checking the LCD. When you 
press the [EXIT] button, the unit displays the initial 
power-on screen.
AC INLET
POWER
ON OFF
VOICE/PERFORMANCE TEMPO SONG SONG BALANCE
MASTER VOLUME
MIDI SETTINGCHORUSREVERB SPLIT CONTRAST
XG8
16 B
YES NO
D A
CBASS
157
PERFORM. FILE MASTER EQ EDIT
VARIATIONPERFORMANCEVOICE EDIT VIBES
GUITAR
146
SYNTH. PAD
135 E.PIANO3 HARPSI.
CLAVI.
ORGAN 1
EXIT
9B A 1 G.PIANO 1
EX.TRACKSSONG FILEPANEL LOCK
TRACK1
TOP SONG SELECT
KEYBOARD SONG
MINMAXREC START/STOP
SYNCHRO START NEW SONGTRACK2MIDI OUT
ORGAN 2
102 G.PIANO 2
STRINGS
113 E.PIANO1
CHOIR
124 E.PIANO2
OTHER SETTING
DOWN SONG SETTING UP
[CONTRAST]  LCD control buttons
LCD
[EXIT]
[MASTER VOLUME]
 LCD control buttons 
						

							P-25017
Basic Operation
Connecting to External Devices
■Connecting to External Audio Equipment
Although the P-250 has built-in speakers, you can connect an external stereo system or powered speak-
ers as a monitor. You can also connect a set of headphones (page 23).
There are several ways to connect the P-250 to external audio equipment, as described in the following 
illustrations. Refer to the illustration most similar to your intended setup.
Connecting stereo powered speakers
A pair of powered speakers can accurately produce 
the instruments rich sounds as well as the pan and 
effect settings. Connect your powered speakers to the 
OUTPUT [L/MONO] and [R] jacks on the rear panel.
Connecting to a external instrument
The stereo outputs from another instrument can be 
connected to the INPUT [L/MONO] and [R] jacks, 
allowing the sound of an external instrument to be 
reproduced via the P-250s speakers. 
Connecting to a mixer
A mixer is often used for recording and live perfor-
mance, enabling you to play the P-250 through a 
large-scale sound system.
   CAUTION
Before you connect the P-250 to other electronic components, first set all volume levels to minimum (0), then turn off the power to all com-
ponents.
As a standard practice, before you turn the power on or off to any component, set all volume levels to minimum (0). Otherwise, electrical 
shock or damage to the components may result.
TIP
To use a single powered speaker, connect it to the OUT-
PUT [L/MONO] jack on the rear panel.
P-250
Stereo headphones
[PHONES] OUTPUT [L /MONO]OUTPUT [R]INPUT INPUT
Powered speaker
(Left)Powered speaker
(Right)
OUTPUT [L] INPUT [L/MONO]
External synthesizer
or tone generator
P-250
[R]
 [R]
MUSIC
PRODUCTIONSYNTHESIZERIntegratedSamplingSequencer
Real-time External Control
Sur face
Modular
Synthesis Plug-in
System
TIP
Connecting a pair of headphones does not affect audio out-
put from the OUTPUT [L/MONO] and [R] jacks. You can 
monitor the output via headphones or at the OUTPUT 
jacks.
12345678910111213141516LR
MixerSpeakers
AmplifierL
OUTPUT L
OUTPUT
[R] OUTPUT[L/MONO]R
R
Stereo headphones
[PHONES]
P-250 
						

							Connecting to External Devices
18   P-250
Basic Operation
■Connecting External MIDI 
Equipment
Using a standard MIDI cable (available sepa-
rately), you can connect an external MIDI 
device, and control it from the P-250. You can 
also use an external MIDI keyboard or 
sequencer to control the P-250’s internal 
sounds. Several different MIDI connection 
examples are illustrated below:
Controlling an external device 
from the P-250
Controlling the P-250 from an 
external device
Recording your performance on the 
P-250 to an external MIDI sequencer 
(such as the QY series), or playing 
the P-250 (as a tone generator) from 
an external MIDI sequencer
Controlling another MIDI device 
via the MIDI [THRU] connector
In this example, P-250 performance data is transmit-
ted from the MIDI [OUT] connector.
MIDI data input from an external MIDI sequencer is out-
put as is from the MIDI [THRU] connector.
TIP
The HOST SELECT switch should be set to “MIDI.” Other-
wise, MIDI information will not be transmitted from the P-
250’s MIDI OUT connector.
External MIDI keyboard
 or synthesizer
P-250
MUSIC
PRODUCTIONSYNTHESIZERIntegratedSamplingSequencer
Real-time External Control
Sur face
Modular
Synthesis Plug-in
System
MIDI [OUT]
MIDI [IN]
HOST SELECTMIDI PC-2 USBMac
MIDI [OUT]MIDI [IN]
External MIDI keyboard
or synthesizer
P-250
MUSIC
PRODUCTIONSYNTHESIZERIntegratedSamplingSequencer
Real-time External Control
Sur face
Modular
Synthesis Plug-in
System
HOST SELECTMIDI PC-2 USBMac
NOTE
The P-250 does not receive or transmit MIDI Start (FAh), 
Continue (FBh), or Stop (FCh) messages.
TIP
The MIDI cable should be shorter than 15 meters, and 
there should be no more than three devices in a MIDI chain 
(chained in series via each units MIDI [THRU] connector). 
To connect more units, use a MIDI thru box for parallel con-
nections. You may encounter errors if the MIDI cables are 
too long or if too many devices are chained together via 
their MIDI [THRU] connectors.
MIDI [OUT]
MIDI [OUT]
External
 MIDI seqencer
P-250
MIDI [IN]  MIDI [IN] 
HOST SELECTMIDI PC-2 USBMac
MIDI [IN]
MIDI [THRU] MIDI [OUT]
MIDI [IN]
External
MIDI sequencerExternal
 MIDI synthesizer
External MIDI synthesizer
MIDI [OUT]
MIDI [IN]
P-250
MUSIC
PRODUCTIONSYNTHESIZERIntegratedSamplingSequencer
Real-time External Control
Sur face
Modular
Synthesis Plug-in
System
HOST SELECTMIDI PC-2 USBMac 
						

							P-25019
Connecting to External Devices
Basic Operation
■Connecting to a Personal 
Computer
When a computer is connected, it can be used 
to control the P-250 or transfer P-250 data to or 
from the computer via MIDI. For example, you 
can edit the P-250s voices or store the P-250s 
voice data in the computer.
There are three ways in which to connect your 
P-250 to a computer:
1USB connection (the computer’s USB port 
to the P-250 [USB] connector)
2Serial connection (the computer’s serial port 
to the P-250 [TO HOST] connector)
3MIDI connection (the computer’s MIDI inter-
face or external MIDI interface to the P-250 
MIDI [IN] and [OUT] connectors)
The connectors that can be used depend on the setting 
of the [HOST SELECT] switch.
Different computers require different connec-
tions, as follows.
Setting the [HOST SELECT] switch
Set the [HOST SELECT] switch according to the type 
of connected computer:
•Macintosh:
“Mac” (data transfer rate: 31,250bps, 1MHz clock)
•Windows:
“PC-2” (data transfer rate: 38,400bps)
1 USB connection (the computer’s USB 
port to the P-250 [USB] connector)
NOTE
The P-250 does not receive or transmit MIDI Start (FAh), 
Continue (FBh), or Stop (FCh) messages.
TIP
After you connect the P-250 to the computer, make sure 
that Local On/Off (pages 22 and 74) is set correctly accord-
ing to the system environment.
TIP
You will need MIDI application software (sequencer, editor, 
etc.) compatible with your computer platform. (Refer to the 
separate Installation Guide.)
NOTE
When you connect the P-250 to a personal computer, first 
turn off the power to both the P-250 and the computer before 
you connect any cables and set the HOST SELECT switch. 
After you make connections and set the switch, turn on the 
power to the computer first, then to the P-250.
NOTE
If you are not using the connection between the P-250 and 
your computer, you must disconnect the cable from the [TO 
HOST] or [USB] connector. If the cable is connected, the P-
250 may not function properly.
[HOST SELECT] Switch SettingUsable connectors
MIDI MIDI [IN], [OUT], [THRU] 
connectors
PC-2, Mac [TO HOST]
USB [USB]
NOTE
If your system does not work properly with the connections and 
settings listed above, check your software operation manual and 
set the HOST SELECT switch to the proper data transfer rate.
TIP
About the USB driver:
You must install the specified USB driver (YAMAHA USB 
MIDI Driver) in your computer before you can transfer data 
between the computer and the P-250.
The YAMAHA USB MIDI Driver can be installed from the 
included “TOOLS for P-250” CD-ROM.
The YAMAHA USB MIDI Driver supports the following OS 
versions:
Windows 98, Windows 98SE, Windows Me, Windows 2000, 
Windows XP
Mac OS 8.6 through 9.2.1
TIP
You will need MIDI application software (sequencer, editor, 
etc.) compatible with your computer platform.
    CAUTION
If you want to use a USB cable to connect the P-250 to your 
computer, you must connect the USB cable before you turn 
on the power to the P-250.
Also, do not turn the power of the P-250 on or off while 
application software that uses USB MIDI is running.
TIP
The P-250 will begin transmission soon after the USB con-
nection is made.
NOTE
When using a USB cable to connect the P-250 to your com-
puter, make the connection directly without passing through 
a USB hub.
    CAUTION
Depending on the state of your computer, the operations of 
the P-250 may become unstable. Do not use your computer 
in a way that causes it to become unstable.
    CAUTION
If you turn the power of the P-250 on or off, or connect or 
disconnect the USB cable in the following states, problems 
will occur in the computer system, possibly causing it to 
freeze (hang up), or causing the P-250 to stop functioning:
•While installing the driver
•While starting or shutting down the operating system
•While the computer is in Save Energy (Sleep) mode
•While a MIDI application program is starting up.
[USB] connectorUSB cable
Computer
P-250
HOST SELECTMIDI PC-2 USBMac 
						

							Connecting to External Devices
20   P-250
Basic Operation
2 Serial connection (computer’s serial 
port to P-250 [TO HOST] connector)
 CAUTION
Performing the following actions may cause your computer 
to hang up or cause the P-250 to stop functioning:
•Turning the power on or off, or connecting or disconnect-
ing the cable too often
•Shifting to power-conservation (sleep) mode while MIDI 
data is being transferred, or returning from sleep mode
•Disconnecting or connecting the cable while the P-250 is 
on
•Turning the power to the P-250 on or off, starting up your 
computer, or installing the driver while a large amount of 
data is being transferred
TIP
Note for Windows users regarding the MIDI driver:
To transfer data via the computer’s serial port and the 
P-250 [TO HOST] connector, you need to install a specified 
MIDI driver (Yamaha CBX driver for Windows).
You can download this driver from the XG Library on the 
Yamaha Web site (http://www.yamaha-xg.com/) or install it 
from the included “TOOLS for P-250” CD-ROM.
[TO HOST]
Windows MacintoshModem port RS-232C (D-sub 9-pin)(Macintosh) (Windows)
HOST SELECTMIDI PC-2 USBMacHOST SELECTMIDI PC-2 USBMac
• Using the computer’s MIDI interface
MIDI [OUT] MIDI [IN]
Windows
Macintosh MIDI
OUT
MIDI
OUTMIDI
INMIDI
IN
MIDI interface
MIDI interface
MIDIINTHRUOUTHOST SELECTMIDI PC-2 USBMac
• Using an external MIDI interface