Yamaha A-S501 Service Manual

A-S501/A-S301
■ CONTENTS
To Service Personnel ........................................... 2
Impedance Selector .............................................. 3
Front Panels ............................................................ 3
Rear Panels .......................................................... 4–8
Remote Control Panel ......................................... 9
SPECIFICATIONS / 参考仕様 .................................. 9–10
Internal View ..........................................................11
SERVICE PRECAUTIONS / サービス時の注意事項 .....11
DISASSEMBLY PROCEDURES / 分解手順 .......... 12–14
Updating Firmware /
ファームウェアのアップデート ........................... 15–17
Self-Diagnostic Function /
ダイアグ（自己診断機能） .................................... 18–30
1 0 1 3 1 3

INTEGRATED AMPLIFIER

SERVICE MANUAL
POWER AMPLIFIER ADJUSTMENT /
パワーアンプ調整 ................................................ 31–32
Ic Data .................................................................. 33–35
Pin Connection Diagrams .................................. 36
Block Diagram ....................................................... 37
Wiring Diagram ...................................................... 38
Printed Circuit Boards ................................ 39–60
Schematic Diagrams ...................................... 61–69
Replacement Parts List ............................... 71–89
Remote Control .................................................... 90
IP '14.12