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5
How to use the manual
Setting Up
page 12
Before going on to any other part of the manual, we strongly suggest
you read this section first. It shows you how to get started playing and
using your new PSR-740/640.
Important Features
page 8
Once you’ve set up the PSR-740/640, you should read through this section
— and explore the relevant page references — to familiarize yourself with
the enormous variety of features and functions of the PSR-740/640.
Basic Operation
page 17
This section introduces you to the basic operating conventions of the
PSR-740/640, such as editing values and changing settings, and shows
you how to use the convenient Help and Direct Access functions.
Contents
page 6
All topics, features, functions, and operations are listed here in the order
they appear in the manual, for easy reference.
Panel Controls
page 10
Use this section to find out about all of the buttons and controls of the
PSR-740/640.
Panel Display Indications
page 16
This section explains the display indications of the PSR-740/640 and
how to read them for optimum operation.
Function Tree
page 22
This lists all functions of the PSR-740/640 according to their hierarchical
structure, letting you easily see the relationship of the various functions
and quickly locate desired information.
Appendix
page 140
This contains various important lists such as the Voice List, Preset Style
List, Effect List, MIDI Data Format, and MIDI Implementation Chart.
Troubleshooting
page 162
If the PSR-740/640 does not function as expected or you have some
problem with the sound or operation, consult this section before calling
your Yamaha dealer or service center. Most common problems and
their solutions are covered here in a very simple and easy-to-under-
stand way.
Index
page 181
This section alphabetically lists virtually all topics, features, functions,
and operations with their respective page numbers, letting you quickly
and easily find the information you need.
The illustrations and LCD screens as shown in this owner’s manual are for instructional pur-
poses only, and may be different from your instrument. The screens from the PSR-740 are used
for the instructions and descriptions in this manual.
3
Summary of Contents for 640
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