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P-125 Owner’s Manual
25
Appendix
Appendix
Troubleshooting
Specifications
Dimensions (W x D X H)
1326 x 295 x 166 mm (52-3/16” x 11-5/8” x 6-9/16”)
Weight
11.8kg (26 lbs. 0 oz.)
Keyboards
88 keys (A-1 – C7)
GHS (Graded Hammer Standard) keyboard with matte black keytops
Touch Sensitivity (Hard/Medium/Soft/Fixed)
Tone Generation / Voice
Piano Sound: Pure CF Sound Engine
Piano Effect: Damper Resonance, Stereo Sustain Samples, Key-
off Samples, String Resonance
24 Preset Voices
Polyphony: 192
Effects/Functions
4 Reverb types, Sound Boost, table EQ, Intelligent Acoustic Con-
trol (IAC), Stereophonic Optimizer, Dual, Split, Duo
Accompaniment Rhythm
Preset: 20
Song Recording/Playback (MIDI data only)
Preset: 21 Voice Demo Songs, 50 Classic Songs
1 User Song with 2 tracks
Data Capacity: Approx. 100 KB/Song (approx. 11,000 notes)
Compatible Data Format
Playback: SMF (format 0, format 1)
Recording: SMF (format 0)
Storage
Internal Memory: total maximum size approx. 900 KB (User
song: One song approx. 100 KB, Loading song data from a com-
puter: Up to 2 Songs)
Overall Controls
Transpose: -6 – 0 – +6
Fine Tuning: 414.8 – 440.0 – 466.8 Hz
Metronome
Tempo: 5 – 280
USB audio interface
Connectivity
DC IN (12V), PHONES (Standard stereo phone jack) x 2, SUS-
TAIN, PEDAL UNIT, USB TO HOST, AUX OUT
Amplifiers
7W x 2
Speakers
12 cm x 2 + 4 cm x 2
Power Supply
AC Adaptor PA-150 or an equivalent recommended by Yamaha
Power Consumption: 9 W (When using PA-150 AC adaptor)
Auto Power Off Function
Included Accessories
Owners Manual, Music Rest, AC Adaptor PA-150 or an equiva-
lent recommended by Yamaha*, Online Member Product Regis-
tration, Footswitch, Warranty*
* May not be included depending on your particular area.
Please check with your Yamaha dealer.
Separately Sold Accessories
Keyboard Stand L-125B/L-125WH, Pedal Unit (LP-1B/LP-1WH),
Foot Pedal FC3A, Footswitch FC4A/FC5, Headphones (HPH-50/
HPH-100/HPH-150), AC Adaptor: PA-150 or an equivalent rec-
ommended by Yamaha, Wireless MIDI adaptor: UD-BT01, Key-
board Bag (SC-KB850)
* The contents of this manual apply to the latest specifications as of the pub-
lishing date. To obtain the latest manual, access the Yamaha website then
download the manual file. Since specifications, equipment or separately
sold accessories may not be the same in every locale, please check with
your Yamaha dealer.
Problem Possible Cause and Solution
When the instrument is turned on or off, a pop-
ping sound is temporarily produced.
This is normal and indicates that the instrument is receiving electrical power.
The instrument does not turn on.
The instrument has not been plugged in properly. Securely connect the AC adaptor to
the DC IN jack on the instrument and to the AC outlet (page 10).
When the instrument is turned on, the power
turns off suddenly and unexpectedly.
If an AC adaptor other than the one specified is used, the power may be turned off sud-
denly and unexpectedly.
The instrument is automatically turned off even if
no operation is done.
This is normal. This occurs due to the Auto Power Off function (page 10).
Noise is heard from the speakers or head-
phones.
The noise may be due to interference caused by the use of a mobile phone in close proxim-
ity to the instrument. Turn off the mobile phone, or use it further away from the instrument.
Noise can be heard coming from the digital
piano’s built-in speakers and/or headphones
when using it with an iPhone/iPad/iPod touch app.
In order to eliminate the risk of noise from other communication when using the instru-
ment with an iPad, iPhone, or iPod touch, we recommend turning on the device’s Air-
plane Mode.
The overall volume is low, or no sound is heard.
The Master Volume is set too low; set it to an appropriate level using the [MASTER
VOLUME] (page 11).
The digital piano’s speakers are turned off. Turn them back on (page 23).
Make sure a pair of headphones or conversion adaptor is not connected to the head-
phones jack (page 11).
Make sure that Local Control is ON. For details, refer to “MIDI Reference” (page 8) on
the website.
Moving the [MASTER VOLUME] slider does not
change the volume of the headphones.
Have you set the external speaker volume to “Fixed”?
Change the external speaker volume to “Variable.” (page 23)
The pedal has no effect.
The pedal cable/plug may not be properly connected. Make sure to securely insert the
pedal plug into the [SUSTAIN] or [PEDAL UNIT] jack (page 12).
The footswitch (for sustain) seems to produce
the opposite effect. For example, pressing the
footswitch cuts off the sound and releasing it
sustains the sounds.
The polarity of the footswitch is reversed because the footswitch was pressed when the
power was turned on. Turn off the power and turn it on again to reset the function. Make
sure to not press the footswitch when turning the power on.
Appendix
25


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