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