AV RECEIVER
RX-A4A
n
CONTENTS（目次）
TO SERVICE PERSONNEL .................................................. 2
PANEL LAYOUTS ................................................................. 3
REMOTE CONTROL PANEL ................................................ 5
SPECIFICATIONS ................................................................. 6
CIRCUIT BOARDS LAYOUT / ユニットレイアウト ............. 9
SERVICE PRECAUTIONS / サービス時の注意事項 ............. 9
DISASSEMBLY PROCEDURE / 分解手順 ...........................10
UPDATING FIRMWARE /
ファームウェアのアップデート ........................................ 20
INSPECTIONS / 検査 .......................................................... 23
POWER AMPLIFIER ADJUSTMENT /
パワーアンプ調整 ............................................................. 48
IC DATA ............................................................................... 50
BLOCK DIAGRAMS / ブロック図 ....................................... 54
WIRING DIAGRAMS / 配線図 ............................................. 57
CIRCUIT BOARDS / シート基板図 ..................................... 60
PIN CONNECTION DIAGRAMS ......................................... 78
CIRCUIT DIAGRAMS .......................................................... 79
REPLACEMENT PARTS LIST ........................................... 101
REMOTE CONTROL ..........................................................124
AV
-A0
101451
2 0 2 1. 0 5
SERVICE MANUAL
© 2021 Yamaha Corporation
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