Sony sa rv 900 service manual
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Extracted text from sony sa rv 900 service manual (Ocr-read)
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2 SA-RV900 TABLE OF CONTENTS 1. GENERAL .......................................................................... 3 2. DIAGRAMS ........................................................................ 3 2-1. IC Block Diagram ................................................................. 3 2-2. Printed Wiring Board ............................................................ 4 2-3. Schematic Diagram ............................................................... 5 3. EXPLODED VIEW ........................................................... 6 4. ELECTRICAL PARTS LIST ......................................... 6 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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.
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33 SA-RV900 SECTION 1 GENERAL - Location of controls SECTION 2 DIAGRAMS For schematic diagrams.Note: -All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. -All resistors are in Ω and 1/4 W or less unless otherwise specified. -C: panel designation. For printed wiring boards.Note: -X: parts extracted from the component side. -Y: parts extracted from the conductor side. - : Pattern from the side which enables seeing. -: B+ Line. -: B– Line. -Voltages are dc with respect to ground under no-signal con- ditions. no mark : Power on -Voltages are taken with a VOM (Input impedance 10MΩ). Voltage variations may be noted due to normal preduction tolerances. -Signal path. K: AUDIO THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. -Abbreviation E2 : Central and South America model E3 : Middle and Near East model E51 : Chilean and Peruvian model SP : Singapore model MX : Mexican model AUS : Australia model ON/OFF SUBWOOFER ON/OFF POWER ON/OFF indicator LINE IN SPEAKER IN SPEAKER OUT VOLTAGE SELECTOR (E2,E3,E51,SP model only) LINE INVOL REVERSEPHASE NORMAL VOL PHASE SPEAKERIN L R SPEAKEROUT L R 120V220V230 - 240V VOLTAGE SELECTOR – Front view – – Rear view – 2-1. IC BLOCK DIAGRAMS IC201 NJM2072D (MAIN BOARD) 1 2 3 4 8 7 6 5 GND AMP OUT GAIN CONTINPUT VCC OUTPUT2 OUTPUT1 RECOVERY TIME CAP