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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
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PSR-S750
PSR-S950
Summary of Contents for PSR-S750
Page 41: ...41 PSR S750 PSR S950 Pattern side 2NA WZ35370 1 DM Circuit Board PSR S750 ...
Page 43: ...43 PSR S750 PSR S950 Pattern side Scale 90 100 DM Circuit Board PSR S950 2NA WZ49340 1 ...
Page 45: ...45 PSR S750 PSR S950 Scale 90 100 Pattern side AJACK Circuit Board 2NA WZ43510 2 ...
Page 47: ...47 PSR S750 PSR S950 PNM Circuit Board Pattern side Scale 70 100 2NA WZ50830 1 ...
Page 48: ...PSR S750 PSR S950 48 PNS Circuit Board Component side WR 315 1 WR 31 1 WR 310 1 2NA WZ50830 1 ...
Page 49: ...49 PSR S750 PSR S950 Pattern side PNS Circuit Board 2NA WZ50830 1 ...