Yamaha ca 800

Page 2

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CONTENTS

CIRCUIT DESCRIPTIONS
PARTIAL DISASSEMBLY
EXTERNAL VIEW
FRONT PANEL
REAR PANEL (U.$.&CANAD|AN MODELS)
REAR PANEL (EUROPEAN MODEL)
INTERNAL VIEW I.
SPECIFICATIONS
ADJUSTMENT OF MAIN AMP CIRCUIT BOARD
PRINTED CIRCUIT BOARD
FUNCTION CIRCUIT BOARD .......
TONE CONTROL CIRCUIT BOARD
FILTER CIRCUIT BOARD .....
MAIN AMP CIRCUIT BOARD
VOLUME CIRCUIT BOARD ..
ELECTROLYTIC CAPACITOR CIRCUIT BOARD .
POWER CIRCUIT BOARD
POWER SWITCH CIRCUIT BOARD
OPERATION CIRCUIT BOARD
REAR PANEL CIRCUIT BOARD (U &CANADIAN MODELS)
REAR PANEL CIRCUIT BOARD (EUROPEAN MODEL) .
BLOCK DIAGRAM .............................
OVERALL SCHEMATIC DIAGRAM
PARTIAL CHANGES MADE ACCORDING TO DESTINATION V
PARTS LIST

CIRCUIT DESCRIPTIONS

CIRCUIT DESCRIPTIONS refer to CA-IDOO's SERVICE MANUAL

1 CONTINUOUS LOUDNESS CIRCUIT

2 SPECIAL YAMAHA TONE CONTROL SYSTEM
3 A CLASS AND B CLASS OPERATION

4, PROTECTION CIRCUITS

NOTE: (IA-1000 CA-soo
POWER TRANSISTOR
AVERAGE CURRENT

1.3A LOA

PARTIAL DISASSEMBLY

Refer to CA-IOOO's SERVICE MANUAL