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Troubleshooting
If you encounter what appears to be a malfunction, please check the following points before assuming that
your PDP-400 is faulty.
1. No Sound When the Power is Turned On
Is the AC plug properly connected to an AC wall outlet? Check the AC connection carefully. Is the MASTER VOL-
UME control turned up to a reasonable listening level?
2. No Rhythm, ABC, or Performance Memory Sound
Check the Auto Accompaniment volume control settings. No sound is produced if these are set to their minimum
positions.
3. The PDP-400 Reproduces Radio or TV Sound
This can occur if there is a high-power transmitter in your vicinity. Contact your Yamaha dealer.
4. Intermittent Static Noise
This is usually due to turning on or off a household appliance or other electronic equipment which is fed by the same
AC mains line as your PDP-400.
5. Interference Appears On Radio or TV Sets Located Near the PDP-400
The PDP-400 contains digital circuitry which can generate radio-frequency noise. The solution is to move the PDP-
400 further away from the affected equipment, or vice versa.
6. Distorted Sound When the PDP-400 is Connected to An External Amplifier/Speaker System
If the PDP-400 is connected to a stereo system or instrument amplifier and the sound is distorted, reduce the setting
of the PDP-400 volume control to a level at which the distortion ceases.
Options
● BC-7 Bench
A stable, comfortable bench styled to match your Yamaha PDP-400.
● HPE-160 Stereo Headphones
High-performance lightweight dynamic headphones with extra-soft ear pads.
● Keyboard Stand LP-3
This convenient stand positions the keyboard at just the right height for comfortable playing.
● Foot Switch FC4/FC5
One FC4 foot switch is supplied with the PDP-400. Obtain another FC4 or an FC5 foot
switch if you want to use both the DAMPER and FOOT SWITCH functions.
NOTES
• Some items may not be available in certain areas.