Yamaha PSR-E373 Service Manual

370
SERVICE MANUAL
PSR-E373 YPT-370
PK
001996
-A0
2020.09
© 2020 Yamaha Corporation.
n CONTENTS
SPECIFICATIONS................................................................................... 3
PANEL LAYOUT...................................................................................... 5
CIRCUIT BOARD LAYOUT & WIRING.................................................... 7
BLOCK DIAGRAM................................................................................... 8
DISASSEMBLY PROCEDURE................................................................ 9
CIRCUIT BOARDS................................................................................ 16
DMLCD Circuit Board Check Method.................................................... 22
TEST PROGRAM.................................................................................. 23
BACKUP................................................................................................ 30
INITIALIZATION..................................................................................... 31
SYSTEM BOOTING FLOW CHART...................................................... 32
PARTS LIST
OVERALL CIRCUIT DIAGRAM

Yamaha PSR-E373 Specifications

General

Control type	Buttons, Rotary
MIDI-keyboard number of keys	61 keys
Duet function	Yes
Product color	Black
Sound effects	Chorus, Reverberation
Sound effects quantity	240
Maximum polyphony (notes)	48
Music memory capacity (songs)	2
Interface	USB
Headphone outputs	1
Display type	LCD
Battery type	AA
Power source type	AC, DC
Power consumption (typical)	5 W
Number of batteries supported	6
Batteries included	No

Weight and Dimensions

Depth	369 mm
Width	945 mm
Height	118 mm
Weight	4600 g