DO NOT operate for long periods of time at a high volume level or at a level that is uncomfortable. This product, either alone or in combination with an ampliﬁer and headphones or speaker/s, may be capable of producing sound levels that could cause permanent hearing loss. However, Yamaha reserves the right to change or modify any of the speciﬁcations without notice or obligation to update existing units. The information contained in this manual is believed to be correct at the time of printing. If a cart, etc., is used, please observe all safety markings and instructions that accompany the accessory product. This product should be used only with the components supplied or a cart, rack, or stand that is recommended by Yamaha. DO NOT connect this product to any power supply or adapter other than one described in the manual, on the name plate, or speciﬁcally recommended by Yamaha. This product utilizes batteries or an external power supply (adapter).

Transferring Data between the Computer and Instrument.

Transferring Performance Data to and from a Computer.

Looking Up Chords Using the Chord Dictionary.

Play a Style with Chords but No Rhythm (Stop Accompaniment).

Select an EQ Setting for the Best Sound.

Controlling Arpeggio Volume with Keyboard Dynamics.

Setting the Number of Beats per Measure, and the Length of Each Beat.

Listen to the DEMO Song for Easy Song Arranger.

Song Fast Forward, Fast Reverse, and Pause.

Try Playing a Variety of Instrument Voices.

Connecting to a Computer (USB Terminal).

Connecting Headphones (PHONES/OUTPUT Jack).

Special Features of the PSR-E403/YPT-400.

Yamaha psr e403 not working