Yamaha P 155 Instruction Manual

Connections
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Transmitting Song Data between the Computer and the 
I nstrument
In addition to the demo songs and the 50 piano preset songs stored in 
this instrument, you can play data for other song by loading it from a 
connected computer. To be able to use this function, you must first 
download Musicsoft Downloader from Yamaha website.
http://music.yamaha.com/download/
System requirement for Musicsoft Downloader
Loading Song Data from a Computer to the Instrument
You can...

Data Backup Using a Computer
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Data Backup Using a Computer
For maximum data security Yamaha recommends that you save your important data to your com-
puter by using the Musicsoft Downloader (MSD) software. This provides \
a convenient backup if the 
internal memory is damaged.
Data that can be saved
● Panel settings and recorded songs
Panel settings are the same data that can be backed up using the Backup Functions 
(page 46). You can save the panel settings and recorded...

Precautions when using the USB [TO DEVICE] terminal
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Precautions when using the USB [TO 
DEVICE] terminal
This instrument features a built-in USB [TO DEVICE] terminal. When conne\
cting a USB device to the 
terminal, be sure to handle the USB device with care. Follow the importa\
nt precautions below.
For more information about the handling of USB devices, refer to the owner’s manual of the USB device.
Compatible USB devices
•USB storage devices (flash memory, floppy disk...

Handling the Floppy Disk Drive (FDD) and Floppy Disks (Optional)
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Handling the Floppy Disk Drive (FDD) 
and Floppy Disks (Optional)
An  optional floppy disk drive can be installed to this 
instrument.
The floppy disk drive lets you save original data you’ve 
created on the instrument to floppy disk, and allows you 
to  load data from floppy disk to the instrument.
Be sure to handle floppy disks and treat the disk drive 
w ith care. Follow the important precautions below.
Floppy...

Message List
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Message List
MessageComment
CLr
Displayed after factory presets are recalled.
CAUTION
Do not turn off the power of the instrument when “ CLr” appears in the display. Doing so may delete all song 
data in the instrument, including external songs (page 36).
conDisplayed when Musicsoft Downloader is started on a computer connected to the instrument. 
When this message appears, you cannot operate the instrument.
E01Indicates failure in accessing the USB storage...

Troubleshooting
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Troubleshooting
ProblemPossible Cause and Solution
The instrument does not turn on. The instrument has not been plugged in properly. Securely insert the female plug 
into the socket on the instrument, and the male plug into a proper AC outlet 
(page 10).
A click or pop is heard when the power is turned 
on or off. This is normal when electrical current is being applied to the instrument.
Noise is heard from the speakers or head-
phones. The noise may be due...

Preset Voice List
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Preset Voice List
Ø : Y es / — : No
*1. Dynamic Sampling provides multiple velocity-switched samples to accurately simulate the timbral response of an 
acoustic instrument.
*2. Contains a very subtle sample that is produced when the keys are released.
V oice 
NumberV oice NameStereo
SamplingT ouch
ResponseDynamic
Sampling *1Key-Off
Sampling *2
Voice Descriptions
1 GRAND PIANO 1 ØØØØ Recorded samples from a full concert grand piano. Also 
includes four...

Index
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Index
Numerics
50 Piano Preset Songs .....................................................13
A
A-B Repeat .......................................................................15
AdjustTempo (50 Piano Preset Songs) ...............................13
Tempo (Recorded Songs) .........................................37
Volume (Metronome) ..............................................44
ALL (display) ...................................................................13...

Index
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N
n y (display) .....................................................................55
n–Y (display) ...................................................................55
O
Other Functions ..............................................................43
P
Part Cancel.......................................................................14
Part Playback On and Off ...............................................37
Pedal Type...

P-155 Owner’s Manual / Bedienungsanleitung / Mode d’emploi / Manua\
l de instrucciones60
Preset Song List / Liste der voreingestellten Songs / Liste des morceaux\
 prédéfinis / Lista de canciones preseleccionadas
Preset Song List / Liste der voreingestellten Songs /
Liste des morceaux prédéfinis /
Lista de canciones preseleccionadas
No.TitleComposer
1I nvention No. 1 J.S.Bach
2I nvention No. 8 J.S.Bach
3G avotte J.S.Bach
4 Prelude (Wohltemperierte Klavier 
I No.1) J.
S.Bach
5 Menuett G dur BWV.Anh.114...