HAMAMATSU, JAPAN
PK
001876
SERVICE MANUAL
Copyright (c) Yamaha Corporation. All rights reserved. PDF ’12.08
SPECIFICATIONS .......................................................3
PANEL LAYOUT ..........................................................5
CIRCUIT BOARD LAYOUT & WIRING ........................8
DISASSEMBLY PROCEDURE ..................................12
LSI PIN DESCRIPTION .............................................22
CIRCUIT BOARDS ....................................................39
PSR-S750 TEST PROGRAM ....................................56
PSR-S950 TEST PROGRAM ....................................63
PSR-S750 SYSTEM BOOTING FLOWCHART .........71
PSR-S950 SYSTEM BOOTING FLOWCHART .........73
PSR-S750 DM CIRCUIT BOARD CHECK METHOD
........75
PSR-S950 DM CIRCUIT BOARD CHECK METHOD
........76
DATA BACKUP
............................................................. 77
SYSTEM RESET
..........................................................78
PARTS LIST
BLOCK DIAGRAM
OVERALL CIRCUIT DIAGRAM
CONTENTS
',*,7$/:25.67$7,21
PSR-S750
PSR-S950
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