ES
FR
DE
EN
Owner’s Manual
Bedienungsanleitung
Mode d’emploi
Manual de instrucciones
ENGLISHDEUTSCHFRANÇAISESPAÑOL
PIANO NUMERIQUE
DIGITAL PIANO
P-155
Owner’s Manual
2
PLEASE KEEP THIS MANUAL
This product utilizes batteries or an external power supply
(adapter). DO NOT connect this product to any power supply
or adapter other than one described in the manual, on the
name plate, or specifically recommended by Yamaha.
WARNING:
Do not place this product in a position where
anyone could walk on, trip over, or roll anything over power or
connecting cords of any kind. The use of an extension cord is
not recommended! If you must use an extension cord, the
minimum wire size for a 25’ cord (or less ) is 18 AWG. NOTE:
The smaller the AWG number, the larger the current handling
capacity. For longer extension cords, consult a local electri-
cian.
This product should be used only with the components sup-
plied or; a cart, rack, or stand that is recommended by
Yamaha. If a cart, etc., is used, please observe all safety
markings and instructions that accompany the accessory
product.
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.
This product, either alone or in combination with an amplifier
and headphones or speaker/s, may be capable of producing
sound levels that could cause permanent hearing loss. DO
NOT operate for long periods of time at a high volume level
or at a level that is uncomfortable. If you experience any
hearing loss or ringing in the ears, you should consult an
audiologist.
IMPORTANT: The louder the sound, the shorter the time
period before damage occurs.
Some Yamaha products may have benches and / or acces-
sory mounting fixtures that are either supplied with the prod-
uct or as optional accessories. Some of these items are
designed to be dealer assembled or installed. Please make
sure that benches are stable and any optional fixtures
(where applicable) are well secured BEFORE using.
Benches supplied by Yamaha are designed for seating only.
No other uses are recommended.
NOTICE:
Service charges incurred due to a 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.
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 non-rechargeable 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.
This product may also use “household” type batteries. Some
of these may be rechargeable. Make sure that the battery
being charged is a rechargeable type and that the charger is
intended for the battery being charged.
When installing batteries, do not mix batteries with new, or
with batteries of a different type. Batteries MUST be installed
correctly. Mismatches or incorrect installation may result in
overheating and battery case rupture.
Warning:
Do not attempt to disassemble, or incinerate any battery.
Keep all batteries away from children. Dispose of used bat-
teries promptly and as regulated by the laws in your area.
Note: Check with any retailer of household type batteries in
your area for battery disposal information.
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. If your dealer is unable to assist you, please
contact Yamaha directly.
NAME PLATE LOCATION:
The name plate is located on the bottom of the product. 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 pro-
vided below and retain this manual as a permanent record of
your purchase.
Model
Serial No.
Purchase Date
SPECIAL MESSAGE SECTION
92-BP
(bottom)
P-155
Owner’s Manual
3
1.
IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instruc-
tions contained in this manual, meets FCC requirements.
Modifications not expressly approved by Yamaha may void
your authority, granted by the FCC, to use the product.
2. IMPORTANT:
When connecting this product to accesso-
ries and/or another product use only high quality shielded
cables. Cable/s supplied with this product MUST be used.
Follow all installation instructions. Failure to follow instruc-
tions could void your FCC authorization to use this prod-
uct in the USA.
3. NOTE:
This product has been tested and found to com-
ply with the requirements listed in FCC Regulations, Part
15 for Class “B” digital devices. Compliance with these
requirements provides a reasonable level of assurance
that your use of this product in a residential environment
will not result in harmful interference with other electronic
devices. This equipment generates/uses radio frequen-
cies and, if not installed and used according to the instruc-
tions found in the users manual, may cause interference
harmful to the operation of other electronic devices. Com-
pliance with FCC regulations does not guarantee that
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)
interference will not occur in all installations. If this product
is found to be the source of interference, which can be
determined by turning the unit “OFF” and “ON”, please try
to eliminate the problem by using one of the following
measures:
Relocate either this product or the device that is being
affected by the interference.
Utilize power outlets that are on different branch (circuit
breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient
the antenna. If the antenna lead-in is 300 ohm ribbon
lead, change the lead-in to co-axial type cable.
If these corrective measures do not produce satisfactory
results, please contact the local retailer authorized to dis-
tribute this type of product. If you can not locate the appro-
priate retailer, please contact Yamaha Corporation of
America, Electronic Service Division, 6600 Orangethorpe
Ave, Buena Park, CA90620
The above statements apply ONLY to those products dis-
tributed by Yamaha Corporation of America or its subsid-
iaries.
FCC INFORMATION (U.S.A.)
OBSERVERA!
Apparaten kopplas inte ur växelströmskällan (nätet) så
länge som den ar ansluten till vägguttaget, även om själva
apparaten har stängts av.
ADVARSEL:
Netspæendingen til dette apparat er IKKE
afbrudt, sålæenge netledningen siddr i en stikkontakt,
som er t endt — også selvom der or slukket på apparatets
afbryder.
VAROITUS:
Laitteen toisiopiiriin kytketty käyttökytkin ei
irroita koko laitetta verkosta.
(standby)
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT. The wires in this mains lead are coloured in
accordance with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this appa-
ratus may not correspond with the coloured makings iden-
tifying the terminals in your plug proceed as follows:
The wire which is coloured BLUE must be connected to
the terminal which is marked with the letter N or coloured
BLACK.
The wire which is coloured BROWN must be connected to
the terminal which is marked with the letter L or coloured
RED.
Making sure that neither core is connected to the earth
terminal of the three pin plug.
• This applies only to products distributed
by Yamaha Music U.K. Ltd.
(2 wires)
P-155
Owner’s Manual
ENGLISH
4
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep this manual in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical
shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the following:
• Only use the voltage specified as correct for the instrument. The required
voltage is printed on the name plate of the instrument.
• Use the specified adaptor (page 68) only. Using the wrong adaptor can result in
damage to the instrument or overheating.
• Check the electric plug periodically and remove any dirt or dust which may have
accumulated on it.
• Do not place the AC adaptor cord near heat sources such as heaters or radiators,
and do not excessively bend or otherwise damage the cord, place heavy objects
on it, or place it in a position where anyone could walk on, trip over, or roll
anything over it.
• Do not open the instrument or attempt to disassemble the internal parts or
modify them in any way. The instrument contains no user-serviceable parts. If it
should appear to be malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.
• Do not expose the instrument to rain, use it near water or in damp or wet
conditions, or place containers on it containing liquids which might spill into
any openings. If any liquid such as water seeps into the instrument, turn off the
power immediately and unplug the power cord from the AC outlet. Then have
the instrument inspected by qualified Yamaha service personnel.
• Never insert or remove an electric plug with wet hands.
• Do not put burning items, such as candles, on the unit.
A burning item may fall over and cause a fire.
• If the AC adaptor cord or plug becomes frayed or damaged, or if there is a
sudden loss of sound during use of the instrument, or if any unusual smells or
smoke should appear to be caused by it, immediately turn off the power switch,
disconnect the adaptor plug from the outlet, and have the instrument inspected
by qualified Yamaha service personnel.
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage
to the instrument or other property. These precautions include, but are not limited to, the following:
• When removing the electric plug from the instrument or an outlet, always hold
the plug itself and not the cord.
• Unplug the AC power adaptor when not using the instrument, or during
electrical storms.
• Do not connect the instrument to an electrical outlet using a multiple-connector.
Doing so can result in lower sound quality, or possibly cause overheating in the
outlet.
• Do not expose the instrument to excessive dust or vibrations, or extreme cold or
heat (such as in direct sunlight, near a heater, or in a car during the day) to
prevent the possibility of panel disfiguration or damage to the internal
components.
• Do not use the instrument in the vicinity of a TV, radio, stereo equipment,
mobile phone, or other electric devices. Otherwise, the instrument, TV, or radio
may generate noise.
• Do not place the instrument in an unstable position where it might accidentally
fall over.
• Before moving the instrument, remove all connected adaptor and other cables.
• When setting up the product, make sure that the AC outlet you are using is
easily accessible. If some trouble or malfunction occurs, immediately turn off
the power switch and disconnect the plug from the outlet. Even when the power
switch is turned off, electricity is still flowing to the product at the minimum
level. When you are not using the product for a long time, make sure to unplug
the power cord from the wall AC outlet.
• Use only the stand specified for the instrument. When attaching the stand or
rack, use the provided screws only. Failure to do so could cause damage to the
internal components or result in the instrument falling over.
Power supply/AC power adaptor
Do not open
Water warning
Fire warning
If you notice any abnormality
Power supply/AC power adaptor Location
(3)-12
1/2
P-155
Owner’s Manual
ENGLISH
5
• Before connecting the instrument to other electronic components, turn off the
power for all components. Before turning the power on or off for all
components, set all volume levels to minimum. Also, be sure to set the volumes
of all components at their minimum levels and gradually raise the volume
controls while playing the instrument to set the desired listening level.
• When cleaning the instrument, use a soft, dry cloth. Do not use paint thinners,
solvents, cleaning fluids, or chemical-impregnated wiping cloths.
• During extreme changes in temperature or humidity, condensation may occur
and water may collect on the surface of the instrument. If water is left, the
wooden parts may absorb the water and be damaged. Make sure to wipe any
water off immediately with a soft cloth.
• Do not insert a finger or hand in any gaps on the instrument.
• Never insert or drop paper, metallic, or other objects into the gaps on the panel
or keyboard. If this happens, turn off the power immediately and unplug the
power cord from the AC outlet. Then have the instrument inspected by qualified
Yamaha service personnel.
• Do not place vinyl, plastic or rubber objects on the instrument, since this might
discolor the panel or keyboard.
• Do not rest your weight on, or place heavy objects on the instrument, and do not
use excessive force on the buttons, switches or connectors.
• Do not use the instrument/device or headphones for a long period of time at a
high or uncomfortable volume level, since this can cause permanent hearing
loss. If you experience any hearing loss or ringing in the ears, consult a
physician.
Saving and backing up your data
• Data in the instrument’s internal memory can be lost due to operational errors or
malfunction. Be sure to save any important data to external media via a
computer connected to the instrument. (page 52)
Backing up the USB Storage device
•To protect against data loss through media damage, we recommend that you
save your important data onto two USB storage devices.
Always turn the power off when the instrument is not in use.
Even when the power switch is in the “STANDBY” position, electricity is still flowing to the instrument at the minimum level. When you are not using the instrument for a long
time, make sure you unplug the AC power adaptor from the wall AC outlet.
• Copying of the commercially available musical data including but not limited to MIDI data and/or audio data is strictly prohibited except for your personal use.
• Windows is a registered trademark of Microsoft
®
Corporation in the United States and other countries.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.
(bottom)
Connections
Maintenance
Handling caution
Saving data
Yamaha cannot be held responsible for damage caused by improper use or modifications to the instrument, or data that is lost or destroyed.
This product incorporates and bundles computer programs and contents in which Yamaha owns copyrights or with respect to which it has license to use
others’ copyrights. Such copyrighted materials include, without limitation, all computer software, style files, MIDI files, WAVE data, musical scores and sound
recordings. Any unauthorized use of such programs and contents outside of personal use is not permitted under relevant laws. Any violation of copyright has
legal consequences. DON’T MAKE, DISTRIBUTE OR USE ILLEGAL COPIES.
The serial number of this product may be found on the bottom of the unit. You
should note this serial number in the space provided below and retain this manual
as a permanent record of your purchase to aid identification in the event of theft.
Model No.
Serial No.
(3)-12
2/2
P-155
Owner’s Manual
ENGLISH
6
Introduction
Thank you for purchasing the Yamaha Digital Piano!
We recommend that you read this manual carefully so that you can
fully take advantage of the advanced and convenient functions.
We also recommend that you keep this manual in a safe and
handy place for future reference.
Main Features
Graded Hammer Effect Keyboard
Thanks to our experience as the world’s leading manufacturer of acoustic pianos, we’ve developed a keyboard with
action that’s virtually indistinguishable from the real thing. Just as on a traditional acoustic piano, the keys of the lower
notes have a heavier touch, while the higher ones are more responsive to lighter playing. The keyboard’s sensitivity can
even be adjusted to match your playing style.
AWM Dynamic Stereo Sampling
This digital piano offers a rich and versatile range of sounds, which are created using Yamaha’s proprietary sampling
tone-generation system, “AWM Dynamic Stereo Sampling.”
AWM (Advanced Wave Memory) is a sampling system that creates sounds close to those of an acoustic instrument by
digitally recording the sounds of an instrument and applying high-quality digital filtering technology to the recorded
audio samples.
The sound waveform created by an acoustic piano differs depending on the player’s strength of touch, from pianissimo
to fortissimo.
AWM Dynamic Stereo Sampling can create extremely dynamic nuances by recording samples at various playing
strengths. The greater the number of samples used, the greater the resulting expressiveness of the instrument.
The piano voice “Grand Piano 1” features a totally new sample recorded from a full-size concert grand piano. Each
note in the sample has been adjusted meticulously so that the digital piano will play only the very best piano sounds.
The piano voices are well-separated sounds featuring a fast attack and a satisfying response.
The “Grand Piano 1” voice features multiple wave samples for different velocities (Dynamic Sampling). That is, differ-
ent samples are used depending on how fast or strong the player strikes the keys. Therefore, this voice expresses
detailed dynamics and sounds much closer to those of a true acoustic piano.
The instrument creates a rich, luxurious sound using “Sustain Sampling,” which is a sample of the soundboard and the
resonance of the strings when the damper pedal is pressed. The instrument also features “Key-off Sampling,” which is a
sample of the very delicate noises that are caused when keys are released.
Accessories
• Owner’s Manual
•AC Power Adaptor*
*May not be included depending on your particular area. Please check with your Yamaha dealer.
• Foot Switch FC4
•Music Rest
•My Yamaha Product User Registration*
*The PRODUCT ID on the sheet will be needed when you fill out the User Registration form.
P-155 Owner’s Manual
ENGLISH
7
Table of Contents
This manual consists of three main sections: Introduction, Reference and Appendix.
Introduction
Main Features..................................................... 6
Accessories ......................................................... 6
Panel Controls and Terminals............................ 8
Before Using the Instrument ........................... 10
Turning the Power On ...............................................10
Setting the Volume.....................................................10
Using the Pedals..........................................................11
Using Headphones .....................................................11
Music Rest...................................................................11
Reference
Listening to the Demo Songs .......................... 12
Using the 50 Piano “Preset” Songs ................. 13
Listening to the 50 Piano Preset Songs......................13
Practicing a One-Hand Part Using
the 50 Preset Songs (Part Cancel Function) ...........14
A-B Repeat for the 50 Preset Songs ...........................15
Selecting & Playing Voices............................... 16
Selecting Voices ..........................................................16
Combining Voices (Dual)..........................................17
Splitting the Keyboard Range and
Playing Two Different Voices ([SPLIT]) ................18
Adding Variations to the Sound –
[BRILLIANCE]/[REVERB]/
[EFFECT]/“Damper Resonance” ............................20
Touch Sensitivity – [TOUCH] ..................................22
Transposition – [TRANSPOSE] ................................23
Using the Metronome ................................................24
Recording Your Performance .......................... 25
Recording a performance quickly..............................25
Re-recording a previously recorded song..................27
Recording to RIGHT/LEFT .......................................28
Changing the Initial Settings
(data recorded at the beginning of a song).............30
Handling Recorded Songs with
a USB Storage Device....................................... 31
About Save and Load..................................................31
Saving a Song ..............................................................32
Loading a Song ...........................................................33
Deleting Song Files .....................................................34
Formatting the USB Storage Device..........................35
Playing Back “USER” and “USB” Songs ........... 36
Detailed Settings – [FUNCTION]...................... 38
Basic Procedure in Function......................................39
About Each Function .................................................40
F1. Fine Tuning of the Pitch ...............................40
F2. Selecting a Scale.............................................40
F3. Dual Functions ..............................................41
F4. Split Functions...............................................42
F5. Other Functions ............................................43
F6. Metronome Volume .....................................44
F7. MIDI Functions.............................................44
F8. Backup Functions..........................................46
Connections ..................................................... 47
Connectors..................................................................47
Connecting to a USB storage device..........................49
Connecting a Personal Computer .............................50
Transmitting Song Data between
the Computer and the Instrument..........................51
Data Backup Using a Computer....................... 52
Precautions when using
the USB [TO DEVICE] terminal......................... 53
Using USB Storage Devices........................................53
Handling the Floppy Disk Drive (FDD) and
Floppy Disks (Optional) ................................... 54
Message List ..................................................... 55
Troubleshooting............................................... 56
Preset Voice List ............................................... 57
Index................................................................. 58
Appendix
Preset Song List................................................ 60
Factory Setting List .......................................... 61
MIDI Data Format ............................................ 62
MIDI Implementation Chart ............................ 66
Specifications ................................................... 68
*The illustrations and displays as shown in this owner’s man-
ual are for instructional purposes only, and may appear some-
what different from those on your instrument.
Please read this section first.
This section explains in detail all of the instrument’s
features, functions and operations.
This section introduces reference material.
Panel Controls and Terminals
P-155
Owner’s Manual
ENGLISH
8
Panel Controls and Terminals
q
[STANDBY/ON] switch
page 10
For turning the power on or off.
w
[MASTER VOLUME] dial
page 10
For adjusting the volume level of the entire sound.
e
[DEMO] button
page 12
For playing the demo songs.
r
[TRANSPOSE] button
page 23
For shifting the pitch of the entire keyboard up or down.
t
[REC] button
page 25
For recording your keyboard performance.
y
[PLAY/PAUSE], [STOP] buttons
pages 13, 37
For playing back/pausing/stopping the preset songs, your
recorded material or commercially available music data, etc.
u
[SONG SELECT] button
pages 13, 37
For selecting a song to play back or edit.
i
[FILE] button
page 32
For saving songs to and loading songs from a USB storage
device, as well as managing song files. Also, lets you format a
USB storage device.
o
[RIGHT], [LEFT] buttons
pages 14, 37
For turning the left- and right-hand parts on or off as required
so you can practice the corresponding part (the part that is
turned off) on the keyboard.
!0
[METRONOME] button
pages 24, 44
For starting/stopping the metronome function.
!1
[TEMPO/FUNCTION –, +] button
pages 24, 39
For changing the song tempo (speed) and selecting other useful
functions (pages 38–46).
!2
Display
page 10
For showing information on certain settings and values of the
instrument.
!3
[–/NO], [+/YES] buttons
For setting values or performing file operations.
Pressing both buttons simultaneously for certain value settings
(Transpose, Tempo, etc.) restores the default value.
!4
Voice group buttons page 16
For selecting voices from 17 internal sounds including Grand
Piano 1, 2 and 3.
!5
[SPLIT] button page 18
For playing different voices on the left- and righthand sections
of the keyboard.
!6
[BRILLIANCE] button page 20
For adjusting the brightness of the sound.
!7
[REVERB], [EFFECT] buttons pages 20, 21
For adding reverb and chorus effects to the selected voice for
your keyboard performance.
!8
[TOUCH] button page 22
For selecting the touch response.
!9
[PHONES] jack page 11
For connecting a set of standard stereo headphones, allowing
private practice.
CAUTION
Never attempt to turn off the power while flashing dashes
appear in the display, indicating data is being written to internal
memory. Doing so may result in loss of all user data.
Front panel
A-1 B-1 C0 D0 E0 F0 G0 A0 B0 C1 D1 E1 F1 G1 A1 B1 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3
q erty ui o !0 !1 !2
w
Panel Controls and Terminals
P-155 Owner’s Manual
ENGLISH
9
@0
USB [TO DEVICE] terminal page 47
For connecting the instrument to a USB storage device, allowing
saving/loading of data to and from the connected device.
@1
AUX OUT [L/L+R][R] jacks page 47
For connecting an external tone generator, allowing you to play
the sound of that device via the instrument’s internal sound sys-
tem and speakers.
@2
MIDI [IN] [OUT] terminals page 48
For connecting external MIDI devices, allowing the use of vari-
ous MIDI functions.
@3
[SUSTAIN PEDAL] jack pages 11, 48
For connecting an included FC4 foot switch or an optional FC3
foot pedal/FC5 foot switch.
@4
[AUX PEDAL] jack pages 11, 48
For connecting an included FC4 foot switch or an optional FC3
foot pedal/FC5 foot switch/FC7 foot controller.
@5
[DC IN 16V] jack page 10
For connecting the included power adaptor.
Rear panel
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D6 E6 F6 G6 A6 B6 C7
!3 !4 !5 !6 !7 !8
!9
@5 @0 @1 @2 @3 @4
Before Using the Instrument
P-155 Owner’s Manual
ENGLISH
10
Before Using the Instrument
Tur ning the Power On
1. Connect the power adaptor’s DC cable to
the [DC IN 16V] jack.
2. Plug the AC adaptor into an AC outlet.
WARNING
Use the specified adaptor (page 68) only. The use of other adaptors
may result in irreparable damage to both the adaptor and the Instru-
ment.
CAUTION
Unplug the AC Power Adaptor when not using the Instrument, or
during electrical storms.
3. Press the [STANDBY/ON] switch to turn the power on.
The display located in the center of the front panel lights up.
When you’re ready to turn off the power, press the [STANDBY/ON] switch again.
CAUTION
Even when the instrument is turned off, electricity is still flowing to the instrument at the minimum level. When you are
not using the instrument for a long time, make sure you unplug the AC power adaptor from the wall AC outlet.
Setting the Volume
Initially set the [MASTER VOLUME] dial about halfway between the
“MIN” and “MAX” settings. Then, when you start playing, re-adjust the
[MASTER VOLUME] dial to the most comfortable listening level.
TERMINOLOGY
MASTER VOLUME:
The volume level of the entire keyboard sound
(The shape of plug differs
depending on locale.)
Display
Normally indicates tempo.
[STANDBY/ON] switch
The level
increases.
The level
decreases.
Before Using the Instrument
P-155 Owner’s Manual
ENGLISH
11
Using the Pedals
Sustain Pedal (Sustain Pedal jack)
This jack is for connecting the included foot switch FC4. The pedal functions in the
same way as a damper pedal on an acoustic piano. Connect the included foot switch
FC4 to this jack and press the pedal to sustain the sound.
When “Damper Resonance” is on, the instrument simulates the sustain sound that
occurs when you press the damper pedal of a grand piano, as you press the damper
pedal and play the keyboard.
An optional FC3 foot pedal or FC5 foot switch can also be connected to this jack. For
the FC3, the further down the pedal is pressed, the longer the sound will be sustained.
(It can be used like a half pedal effect).
• The depth of the effect produced by the Sustain Samples can be adjusted via the Pedal func-
tions (pages 39, 43) in Function.
AUX Pedal (AUX Pedal jack)
This jack is for connecting an optional FC3 foot pedal, FC5 foot switch or FC7 foot
controller. An included foot switch FC4 can also be connected to this jack. A wide
range of functions, including the Soft Pedal function, can be assigned to this jack. For
instructions on assigning the pedal, refer to pages 39, 43.
• The FC7 Foot Controller can be used to control Expression (pages 39, 43).
Using Headphones
Connect a set of headphones to one of the [PHONES] jacks.
Two [PHONES] jacks are provided.
You can connect two sets of standard stereo headphones. (If you are using
only one set of headphones, you can plug them into either jack.)
CAUTION
Do not use the instrument at a high volume level for a long period of time, or
your hearing may be damaged.
CAUTION
The speakers are automatically shut off when a plug is inserted into this jack.
• Optional headphones:
HPE-150 Yamaha headphones
Music Rest
The instrument includes a music rest that can be attached to the
instrument by inserting it into the holes at the top of the control
panel.
If the sustain pedal doesn’t work,
make sure that the pedal cord is
properly plugged into the jack.
TERMINOLOGY
Half-pedal:
While playing the piano with Sus-
tain and you want to slightly mute
the sustained sound, release the
pedal from maximum position to
half position.
NOTE
FC4
On front panel
Standard stereo
phone plug
Listening to the Demo Songs
P-155 Owner’s Manual
ENGLISH
12
Listening to the Demo Songs
Demo songs are provided that effectively demonstrate each of the instrument’s voices.
1. Press the [STANDBY/ON] switch to turn the power
on (page 10).
When the power is turned ON, one of the voice button indicators will light.
2. Adjust the volume (page 10).
Initially set the [MASTER VOLUME] dial about half way between the “MIN” and
“MAX” settings. Then, when you start playing, re-adjust the [MASTER VOL-
UME]
dial to the most comfortable listening level.
3. Press the [DEMO] button to listen to the Demo
songs.
The VOICE button indicators will flash in sequence, then the GRAND PIANO 1
demo song will start. Demo songs provided for each voice will play back in
sequence until you press the [DEMO] or [STOP] button.
Changing a demo song
You can change to another Demo song during playback by pressing the desired
VOICE button.
Demo Song List
• The demonstration song of CHURCH ORGAN features short rearranged excerpts of the
original composition.
• All songs except CHURCH ORGAN are original (© 2008 Yamaha Corporation).
4. Press the [DEMO] or [STOP] button to stop the
Voice demo.
3
4
34
Demo song data is not transmit-
ted via the MIDI terminals.
MIDI reception is not possible
during Demo song playback.
Demo songs cannot be played
during song recording (page 25)
or in the File Operation mode
(page 39).
You cannot adjust the tempo of
demo songs.
You cannot use the Part Cancel
function (page 14) or the Song
A-B Repeat function (page 15) in
Demo.
NOTE
NOTE
NOTE
NOTE
Voice Name Title Composer
GRAND PIANO 1 Original Original
GRAND PIANO 2 Original Original
ELECTRIC PIANO 1 Original Original
ELECTRIC PIANO 2 Original Original
JAZZ ORGAN Original Original
CHURCH ORGAN
Herr Christ, der ein’ge Gottes-
Sohn, BWV.601
J. S. Bach
STRINGS 1
([STRINGS/OTHERS] o 1)
Original Original
Reference
Using the 50 Piano “Preset” Songs
P-155 Owner’s Manual
ENGLISH
13
Using the 50 Piano “Preset” Songs
Listening to the 50 Piano Preset Songs
The instrument provides performance data of 50 piano songs. You can simply listen to these songs
(page 60) or use them for practice (page 14).
1. Press the [SONG SELECT] button a few times until
the “PRESET” indicator lights.
2. Press the [–/NO], [+/YES] buttons to select the num-
ber of the tune you want to play.
The number will appear on the display.
1–50: Select a preset song number and play only the song.
ALL: Play all preset songs in sequence.
rnd: Play all preset songs continuously in random order.
3. Press the [PLAY/PAUSE] button to start playback.
Adjust the tempo
You can use the [TEMPO/FUNCTION –, +] buttons to adjust the playback tempo
as required. This produces a relative tempo variation, with a range from “–50”
through “0” to “50” at maximum; the range will differ depending on the
selected song.
The default tempo can be recalled by simultaneously pressing the [–] and [+]
buttons.
4. Stop playback.
Playback will stop automatically when the selected preset song has finished. To
stop the song during playback (or continuous playback), press the [STOP] but-
ton. You can also pause playback by pressing the [PLAY/PAUSE] button.
To play back another song continuously, see step 2 above.
5.
Press the [SONG SELECT] button to exit Preset Song
playback.
The indicator turns off, and the instrument returns to normal play.
52
34
1
Preset songs cannot be played
during Demo/USER/USB songs
playback, song recording
(page 25), or in the File Operation
mode.
TERMINOLOGY
Song:
On the instrument, performance
data is called a “Song.” This
includes demonstration tunes and
piano preset tunes.
Preset:
Preset Data supplied with the
internal memory of the instrument
shipped from the factory.
You can play the keyboard along
with the preset song. You can
change the voice playing on the
keyboard.
The default tempo “0” is automati-
cally selected whenever a new
preset song is selected, or when
playback of a new preset song
begins during “ALL” or “rnd”
playback.
When you select a different song
(or a different song is selected
during chained playback), appro-
priate reverb and effect types will
be selected accordingly.
You can adjust the Brilliance con-
trol (page 20) and Reverb type
(page 20) that is applied to the
voice played from the keyboard
and to preset song playback. You
can change the Effect settings
(page 21) and Touch sensitivity
(page 22) for the keyboard voice
as well.
NOTE
NOTE
NOTE
NOTE
NOTE
Using the 50 Piano “Preset” Songs
P-155 Owner’s Manual
ENGLISH
14
Practicing a One-Hand Part Using the 50 Preset Songs
(Part Cancel Function)
The 50 preset songs have separate left- and right-hand parts on individual parts. You can turn the
left- and right-hand parts on or off as required so you can practice the corresponding part (the part
that is turned off) on the keyboard. The right-hand part is played by [RIGHT] and the left-hand part
is played by [LEFT].
1. Turn off the playback part you wish to practice.
After you select a song to practice, press the [RIGHT] or [LEFT] button to turn
off the corresponding part.
When you first select a song, both [RIGHT] and [LEFT] indicators light up, indi-
cating that you can play back both parts. When you press one of the buttons to
turn off playback, the corresponding button indicator turns off and the corre-
sponding part playback is muted.
Pressing the buttons repeatedly toggles playback between on and off. The parts
can be turned on or off even during playback.
2. Press the [PLAY/PAUSE] button to start playback
and playing.
Play the part you just turned off.
Starting playback automatically
as you start playing the keyboard (Sync Start)
You can cause playback to begin when you play the keyboard (Sync Start). Hold
down the [STOP] button and press the [PLAY/PAUSE] button. The [PLAY/
PAUSE]
indicator will blink, and the instrument will wait for Sync Start. Now
when you play the keyboard, playback will begin at the same moment. If you
press the [STOP] button while waiting, Sync Start will be cancelled.
Pedal Play/Pause
A pedal connected to the
[AUX PEDAL] connector can be assigned to play and
pause preset song playback via the AUX Pedal function described on pages 39,
43.
3. Stop playback.
When playback is complete, it automatically stops and the instrument locates
the top of the song. If you wish to stop playback in the middle of a song, press
the [STOP] button. You can also pause playback by pressing the [PLAY/PAUSE]
button.
1
23
The Preset Song Part Cancel
function cannot be used during
“ALL” or “rnd” (page 13) play-
back.
Resetting the part playback
Both parts are automatically
turned ON whenever you select a
new song.
NOTE
NOTE
TERMINOLOGY
Sync:
Synchronized; occurring at the
same time.
Using the 50 Piano “Preset” Songs
P-155 Owner’s Manual
ENGLISH
15
A-B Repeat for the 50 Preset Songs
The A-B Repeat function can be used to continuously repeat a specified phrase within a preset song.
Combined with the Part Cancel function (page 14), this provides an excellent way to practice diffi-
cult phrases.
1. Select and play a preset song.
2. Press the [TEMPO/FUNCTION] button at the begin-
ning of the phrase you want to repeat.
This sets the “A” point ( will appear on the display).
3. Press the [TEMPO/FUNCTION] button a second
time at the end of the phrase.
This sets the “B” point ( will appear on the display).
At this point, repeat playback will begin between the specified A and B points.
4. Press the [STOP] button to stop playback.
A-B repeat playback will resume if you press the [PLAY/PAUSE] button.
To cancel the A and B points, press the
[TEMPO/FUNCTION] button once.
4 3
2
The A-B Repeat function cannot
be used during “ALL” or “rnd”
(page 13) playback.
NOTE
•To set the “A” point at the very
beginning of the song, press
the [TEMPO/FUNCTION] but-
ton before starting playback.
•You can have the B point auto-
matically be set to the song’s
end, by setting the A point and
letting the song play to the end.
An automatic lead-in (to help
guide you into the phrase) starts
at the A point of the song.
After setting the A and B points,
you can set the Sync Start
(page 14) and Pedal Play/Pause
(page 14) functions.
NOTE
NOTE
NOTE
AB
Repeat A through B
The A and B points are automati-
cally canceled when a new song
is selected.
NOTE
Selecting & Playing Voices
P-155 Owner’s Manual
ENGLISH
16
Selecting & Playing Voices
Selecting Voices
Select the desired voice by pressing one of the Voice
buttons.
[STRINGS/OTHERS] button
Pressing the [STRINGS/OTHERS] button switches among the following eleven
voices.
Then, when you start playing, re-adjust the
[MASTER VOLUME] dial for the most com-
fortable listening level.
Voice Name
To familiarize yourself with the
characteristics of the voices, lis-
ten to the demo songs for each
voice (page 12). Refer to “Preset
Voice List” on page 57 for more
information on the characteristics
of each preset voice.
TERMINOLOGY
Voice:
On the instrument, the term
“voice” means “instrument
sound.”
You can control the loudness of a
voice by adjusting the force with
which you strike the keys,
although different playing styles
(touch sensitivities) have little or
no effect with certain musical
instruments.
Refer to “Preset Voice List” on
page 57.
If you select the voice via the
[STRINGS/OTHERS] button then
press another VOICE button, the
voice last selected via the
[STRINGS/OTHERS] button will
be maintained. In other words,
pressing the [STRINGS/OTH-
ERS] button again calls up the
last selected voice.
NOTE
NOTE
NOTE
Display Voice Name
o 1
STRINGS 1
o 2
STRINGS 2
o 3
CHURCH ORGAN 2
o 4
HARPSICHORD
o 5
E.CLAVICHORD
o 6
VIBRAPHONE
o 7
CHOIR
o 8
GUITAR
o 9
WOOD BASS
o10
BASS & CYMBAL
o11
E.BASS
Selecting & Playing Voices
P-155 Owner’s Manual
ENGLISH
17
Combining Voices (Dual)
You can play voices simultaneously across the entire range of the keyboard. In this way, you can
combine similar voices to create a thicker sound.
1. Press two voice buttons at the same time (or press
one voice button while holding another) to engage
Dual.
The voice indicators of both selected voices will light when Dual is active.
Play the keyboard.
If you want to use a voice selected via the [STRINGS/OTHERS] button, press the
[STRINGS/OTHERS] button several times to call up the desired voice while
holding any other VOICE button. The number of the voice name of the
[STRINGS/OTHERS] button is displayed on screen.
According to the voice numbering priority shown in the diagram below, the
lower value voice number will be designated as Voice 1 (the other voice will be
designated as Voice 2).
The Function provides access to a number of other Dual functions, such as vol-
ume balance setting and octave setting (pages 39, 41). (If you do not set the
Dual functions, the appropriate setting will be set in each voice by default.)
2. Press any single voice button to return to the nor-
mal single-voice play.
2
1
Two voices in the [STRINGS/
OTHERS] button cannot be
engaged at the same time.
Dual and Split cannot be
engaged at the same time.
[REVERB] in Dual:
The reverb type assigned to
Voice 1 will take priority over the
other. (If the reverb is set to OFF,
Voice 2 reverb type will be in
effect.)
[EFFECT] in Dual:
Depending on the condition, one
effect type may take priority over
the other. The depth is deter-
mined according to the default
depth value of the voice combina-
tion. However, using function F3
(page 41) you can adjust the
depth value for each voice to your
liking.
NOTE
NOTE
NOTE
1 2 3 4 5 6 7
Voice numbering priority
Selecting & Playing Voices
P-155 Owner’s Manual
ENGLISH
18
Splitting the Keyboard Range and Playing Two Different
Vo ices ([SPLIT])
Split enables you to play two different voices on the keyboard — one with the left hand and
another with the right hand. For example, you can play a bass part using the Wood Bass or Electric
Bass voice with the left hand, and a melody with the right hand.
1. Press the [SPLIT] button to engage Split.
The [SPLIT] button lights.
As a default setting, WOOD BASS will be selected for the left-hand part.
The Function provides access to a number of other Split functions (pages 39,
42). (If you make no settings for the Split functions, the appropriate setting will
be set in each voice by default.)
2. Specify the split point (the border between the
right- and left-hand range).
Press and hold down the [SPLIT] button and play the key you wish to assign as
the split point.
(The split point is initially set at the F#2 key by default. If you do not need to
change the split point, skip this step.) You can check the name of the current
split point key on the LED display by holding down the [SPLIT] button.
An example of split-point key display
Split point (default setting: F#2)
Bass voice Melody
1
452
3
Dual and Split cannot be
engaged at the same time.
TERMINOLOGY
Default setting:
The “Default setting” refers to the
factory setting obtained when you
first turn on the power to the
instrument.
A specified “split point” key is
included in the left-hand range.
The split point can also be set by
the Function F4.1 (page 42).
The split point can also be
changed by simultaneously hold-
ing down the [SPLIT] button and
pressing the [–/NO] or [+/YES]
button.
The default split point can be
recalled by simultaneously hold-
ing down the [SPLIT] button and
pressing both the [–/NO] and [+/
YES] buttons together.
NOTE
NOTE
NOTE
NOTE
F 2
F#2
Eb2
followed by a high bar if sharp
followed by a low bar if flat
Selecting & Playing Voices
P-155 Owner’s Manual
ENGLISH
19
3. Press a voice button to select a voice for the right
hand.
If you want to use a voice selected via the [STRINGS/OTHERS] button, press the
[STRINGS/OTHERS] button several times to call up the desired voice. The voice
number of the [STRINGS/OTHERS] button is displayed on screen.
4. Press the corresponding voice button while holding
the [SPLIT] button to select a voice for the left hand.
The indicator of the left voice button will light while the [SPLIT] button is
pressed.
If you want to use a voice selected via the [STRINGS/OTHERS] button, press the
[STRINGS/OTHERS] button several times to call up the desired voice while
holding the [SPLIT] button. The voice number of the [STRINGS/OTHERS] but-
ton is displayed on screen.
5. Press the [SPLIT] button to return to the normal sin-
gle-voice play.
[REVERB] in Split
The reverb type assigned to the
right voice will take priority over
the other. (If the reverb is set to
OFF, the left voice’s reverb type
will be in effect.) Reverb depth
settings made via the panel con-
trols (i.e., pressing the [–/NO] or
[+/YES] buttons while holding the
[REVERB] button; see page 20)
will be applied to both voices.
[EFFECT] in Split
Depending on the conditions, one
effect type will take priority over
the other. The depth will be
decided according to the default
depth value of the voice combina-
tion. However, using Function F4
(pages 39, 42) you can change
the depth value for each voice as
you like. Effect depth settings
made via the panel controls (i.e.,
pressing the [–/NO] or [+/YES]
buttons while holding the
[EFFECT] button; see page 21)
will be applied to the right voice
only.
NOTE
NOTE
Selecting & Playing Voices
P-155 Owner’s Manual
ENGLISH
20
Adding Variations to the Sound – [BRILLIANCE]/
[REVERB]/[EFFECT]/“Damper Resonance”
[BRILLIANCE]
You can use this control to adjust the brilliance of the tone and change the tonality to
suit your preference.
BRIGHT: Bright tone
NORMAL: Standard tone
MELLOW: Soft and mellow tone
To select a brilliance type, press the [BRILLIANCE] button a few times until the indica-
tor corresponding to the desired type lights (the indicator lights in sequence each time
you press the [BRILLIANCE] button). Brilliance can be selected among five types. When
two adjacent indicators are lit, the type that is between the two indicated types is
selected. For example, when both NORMAL and MELLOW are lit, the brilliance set-
ting between NORMAL and MELLOW is selected.
[REVERB]
This control enables you to select various digital reverb effects for adding extra depth
and expression to the sound and creating a realistic acoustic ambience.
OFF: When no reverb effect is selected, no REVERB indicator is lit.
ROOM: This setting adds a continuous reverb effect to the sound, similar to the
acoustic reverberation you would hear in a room.
HALL 1: For a “bigger” reverb sound, use the HALL 1 setting. This effect simulates
the natural reverberation of a small-size concert hall.
HALL 2: For a truly spacious reverb sound, use the HALL 2 setting. This effect simu-
lates the natural reverberation of a large concert hall.
STAGE: Simulates the reverb of a stage environment.
Pressing the [REVERB] button repeatedly toggles the reverb on and off.
The indicators light in sequence each time the [REVERB] button is pressed. When all
indicators are off, no effect is produced.
Adjusting Reverb Depth
Adjust the reverb depth for the selected voice by using the
[–/NO] [+/YES] buttons
while holding the
[REVERB] button. Default depth settings are different for each voice.
The depth range is from 0 (no effect) through 20 (maximum reverb depth). The cur-
rent depth setting appears on the display while the [REVERB] button is held.
[BRILLIANCE] button[–/NO] [+/YES] buttons
[REVERB] button
[EFFECT] button
Default setting = NORMAL
When the BRILLIANCE is set to
BRIGHT, the overall sound will be
slightly louder. If the MASTER
VOLUME is set at a high level the
sound may become distorted. If
so, lower the MASTER VOLUME
level.
NOTE
NOTE
The default reverb type (including
OFF) and depth settings are dif-
ferent for each voice.
NOTE
Releasing the [REVERB] button
changes the reverb type.
If you are changing the reverb
depth by holding the [REVERB]
button, releasing the [REVERB]
button will not change the reverb
type.
NOTE
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