Yamaha PSR-E473 Service Manual

SERVICE MANUAL
PSR-E473
PK
001998
-A0
2022.01
© 2021 Yamaha Corporation.
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CONTENTS
SPECIFICATIONS................................................................................... 3
PANEL LAYOUT ..................................................................................... 5
DISASSEMBLY PROCEDURE ............................................................... 8
Disassembling the keyboard (time required: About 13 minutes)........... 14
BACKUP................................................................................................ 16
INITIALIZATION .................................................................................... 17
INSPECTIONS ...................................................................................... 18
APPENDIX ............................................................................................ 29
CIRCUIT BOARDS................................................................................ 31
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT WIRING
OVERALL CIRCUIT DIAGRAM
PARTS LIST

Yamaha PSR-E473 Specifications

General

Bit rate	16 bit
Product type	Digital synthesizer
Product color	Black
Sound effects	Chorus, Reverberation
Number of speakers	2
Chorus effects quantity	5
Keyboard number of keys	61
Maximum polyphony (notes)	64
Reverberation effects quantity	12
Display type	LCD
Power source type	AC
Headphone outputs	1

Weight and Dimensions

Depth	404 mm
Width	992 mm
Height	136 mm
Weight	7000 g