Sony ta av 581 service manual

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Ñ 2 Ñ SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. SECTION 1 TEST MODE [Fluorescent Indicator Tube, LED All Lit, and Key Check Mode] 1. When the plug is inserted into the outlet while pressing the 3 CLASSIC button, the fluorescent indicator tube and LED will light up completely. 2. The mode changes as follows each time the 3 CLASSIC button and WOOFER ON/OFF button are pressed together after 1. Sequence of Service Modes Fluorescent Indicator Tube and LED Check Mode *1 AMP check mode *2 - Press the 3 CLASSIC button and WOOFER ON/OFF button at the same time. KEY check mode *3 - Press the 3 CLASSIC button and WOOFER ON/OFF button at the same time. - Press the 3 CLASSIC button and WOOFER ON/OFF button at the same time. *1 For checking if the fluorescent indicator tube and LED are lit completely *2 When the AMP check mode is set, ÒAMPÓ is displayed on the fluorescent indicator tube. As this mode is not used for servicing, perform step 2 to enter the KEY check mode. *3 When the KEY check mode is set, ÒKEY 0Óis displayed on the fluorescent indicator tube. Each press of the button is counted. (This excludes the | / u button) When all buttons are pressed, the AMP check mode is set. Buttons pressed once will not be counted when pressed again. 3. To exit the test mode, press the | / u button TABLE OF CONTENTS 1. TEST MODE ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááá 2 2. GENERAL ááááááááááááááááááááááááááááááááááááááááááááááááááá\ áááááááááááááááááááá 3 3. DIAGRAMS 3-1. Circuit Boads Location ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááá 4 3-2. Printed Wiring Boards Ð Display Section Ð ááááááááááááááááááááááááá 5 3-3. Schematic Diagram Ð Display Section Ð ááááááááááááááááááááááááááááá 7 3-4. Printed Wiring Boards Ð Power Section Ð ááááááááááááááááááááááááááá 9 3-5. Schematic Diagram Ð Power Section Ð ááááááááááááááááááááááááááááá 11 3-6. Printed Wiring Board Ð Main Section Ð áááááááááááááááááááááááááááá 13 3-7. Schematic Diagram Ð Main Section (1/2) Ð áááááááááááááááááááááá 15 3-8. Schematic Diagram Ð Main Section (2/2) Ð áááááááááááááááááááááá 17 3-9. IC Pin Function Description áááááááááááááááááááááááááááááááááááááááááááááá 19 3-10. IC Block Diagrams ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááá 21 4. EXPLODED VIEWS 4-1. Front Panel Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááá 23 4-2. Chassis Section ááááááááááááááááááááááááááááááááááááááááááááááááááá\ ááááááááááááááá 24 5. ELECTRICAL PARTS LIST áááááááááááááááááááááááááááááááááááá 25

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SECTION 2 GENERAL Ñ 3 Ñ 1 POWER switch (I/u) 2 DOLBY PRO LOGIC indicator 3 SURROUND MODE buttons 4 +, Ð buttons 5 CONTROL MODE buttons 6 SUPER WOOFER indicator 7 MASTER VOLUME control 8 WOOFER ON/OFF button 9 PHONO button!¼ TUNER button !Á CD button !ª TAPE button !£ VIDEO 2 button !¢ VIDEO 1 button !° SOUND FIELD buttons !¤ CENTER MODE button !¦ PHONES jack 1 REAR SPEAKERS 2 AC OUTLET (AEP, Singapore, Australian Model) 3 AC power cord 4 WOOFER SPEAKER 5 CENTER SPEAKER 6 FRONT SPEAKERS7 VIDEO 1 8 VIDEO 2 9 TAPE !¼ CD !Á TUNER !ª PHONO LOCATION AND FUNCTION OF CONTROLS [FRONT PANEL] [REAR PANEL] Photo : AEP, Singapore, Australian Model