Yamaha a 550
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Extracted text from yamaha a 550 (Ocr-read)
Page 1
ABSSQ
SERVICE MANUAL
I FRONT PANEL
0 O % $3
6 IMAHA unrufin. sauNn 5mm Amamiu Am wuuv sag W
in Am:
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0 POWER SWITCH 0 TR EBLE CONTROL
0 SPEAKER SELECTOR SWITCH Q HIGH FILTER SWITCH
9 INPUT SELECTOR SWITCH 0 MODE SWITCH
0VOLUME CONTROL ID REC OUT SELECTOR SWITCH
9 PHONES JACK 0 BALANCE CONTROL
6 BASS CONTROL ' Q LOUDNESS CONTROL
I CONTENTS
SPECIFICATIONS ............................................................... . 2
REAR PANELS ................................................................. . 3
INTERNAL VIEW ............................................................. . 4
DISASSEMBLY PROCEDURES ...................................................... . 5
ADJUSTMENTS ................................................................ . 7
BLOCK DIAGRAM .............................................................. . 8
PRINTED CIRCUIT BOARD/WIRING .................................................. - 9
SCHEMATIC DIAGRAM ........................................................... . 10
PARTS LIST
004392 and in Japan 6.79 qdvux