Yamaha PSR-S970 - Service Manual

HAMAMATSU, JAPAN
PK
001917
SERVICE MANUAL
Copyright (c) Yamaha Corporation. All rights reserved. PDF ’15.07
SPECIFICATIONS ............................................................... 3
PANEL LAYOUT .................................................................. 5
CIRCUIT BOARD LAYOUT & WIRING ................................ 8
DISASSEMBLY PROCEDURE .......................................... 12
CIRCUIT BOARDS ............................................................ 21
TEST PROGRAM .............................................................. 38
INITIAL SETTING .............................................................. 54
PSR-S770 SYSTEM BOOTING FLOWCHART ................. 55
PSR-S970 SYSTEM BOOTING FLOWCHART ................. 57
PSR-S770 DMM CIRCUIT BOARD CHECK METHOD ............. 59
PSR-S970 DMH CIRCUIT BOARD CHECK METHOD ............. 61
RESETTING TO THE FACTORY-PROGRAMMED SETTINGS ............ 63
DATA BACKUP .................................................................. 64
VERSION UPGRADE ........................................................ 65
PARTS LIST
BLOCK DIAGRAM
CIRCUIT DIAGRAM
CONTENTS
DIGITAL WORKSTATION
PSR-S770
PSR-S970