Yamaha P90 Owner's Manual download pdf (Page 49)

P-90 Troubleshooting

ENGLISH

Troubleshooting

Problem Possible Cause and Solution

The P-90 does not turn on. The P-90 has not been plugged in properly. Insert the adaptor plug into an AC outlet

and the adaptor socket into the unit securely. (page 8).

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 from the speakers or headphones is

audible.

The noise may be due to interference caused by the use of a mobile phone in close

proximity to the P-90. Turn off the mobile phone, or move it further away from the P-90.

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] control.

• Make sure that Local Control (page 40) is ON.

The foot pedal has no effect, or the sound

continuously sustains even when the foot

pedal is not pressed.

The pedal cord may not be properly connected. Make sure to securely insert the pedal

cord into the [SUSTAIN] jack (page 10).

The foot pedal seems to produce the opposite

effect. For example, pressing the foot switch

cuts off the sound and releasing it sustains

the sounds.

The polarity of the foot pedal is reversed. Make sure that the foot pedal plug is properly

connected to the [SUSTAIN] jack before turning on the power.

Do not press the pedal while turning the power on.

If appears on the display, an internal malfunction has occurred. In this case, contact your Yamaha dealer.

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Yamaha P90 Owner's Manual Page 49