Appendix, Troubleshooting, Specifications – Yamaha P-45 User Manual

Page 20: Troubleshooting specifications

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P-45 Owner’s Manual





Dimensions (W x D X H)

• 1,326 x 295 x 154 mm (52-3/16” x 11-5/8” x 6-1/16”)


• 11.5 kg (25 lbs. 6 oz.)


• 88 keys (A-1 – C7)
• GHS (Graded Hammer Standard) keyboard with matte black


• Touch Sensitivity (Hard, Medium, Soft, Fixed)

Tone Generation / Voice

• AWM Stereo Sampling
• 10 Preset Voices
• Polyphony: 64


• 4 Reverb types
• Dual
• Duo

Song Playback

• 10 Voice Demo Songs + 10 Piano Preset Songs

Overall Controls

• Metronome
• Tempo: 32 – 280
• Transpose: -6 – 0 – +6
• Fine Tuning: 414.8 – 440.0 – 466.8 Hz




• 6 W + 6 W


• 12 cm x 2

Power Supply

• AC Adaptor PA-150 or an equivalent recommended by Yamaha
• Power Consumption: 6 W (When using PA-150 adaptor)
• Auto Power Off Function

Included Accessories

• Owner’s Manual, Music Rest, AC Adaptor PA-150 or an equiva-

lent recommended by Yamaha*, Online Member Product Regis-
tration**, Footswitch
* May not be included depending on your particular area.

Please check with your Yamaha dealer.

** The PRODUCT ID on the sheet will be needed when you fill

out the User Registration form.

Separately Sold Accessories

• Keyboard Stand L-85, Foot Pedal FC3A, Footswitch FC4A/FC5,

Headphones (HPE-30/HPE-150), USB MIDI Interface for
iPhone/iPod touch/iPad (i-UX1), AC Adaptor (Users within U.S or
Europe: PA-150 or an equivalent recommended by Yamaha, Oth-
ers: PA-5D, PA-150 or an equivalent)

* The contents of this manual apply to the latest specifications as

of the printing date. Since Yamaha makes continuous improve-
ments to the product, this manual may not apply to the specifi-
cations of your particular product. 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.


Possible Cause and Solution

The instrument does not turn on.

The instrument has not been plugged in properly. Securely insert the female plug into
the jack on the instrument, and the male plug into a proper AC outlet (page 10).

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-

The noise may be due to interference caused by the use of a mobile phone in close
proximity to the instrument. Turn off the mobile phone, or use it further away from the

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

In order to eliminate the risk of noise from other communication when using the instru-
ment with an iPhone, iPad, 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] slider (page 11).

Make sure a pair of headphones or conversion adaptor is not connected to the head-
phones jack (page 11).

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] jack (page 11).

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.