Sony TAFB930R free download

File name Sony-TAFB930R amp.pdf

TA-FB930R SERVICE MANUAL AEP Model Photo: BLACK model SPECIFICATIONS INTEGRATED STEREO AMPLIFIER MICROFILM 1 TABLE OF CONTENTS 1. GENERAL ... 3 2. ELECTRICAL ADJUSTMENT ... 4 3. DIAGRAMS 3-1. Circuit Boards Location ... 5 3-2. Schematic Diagram ­ Input Section ­ ... 6 3-3. Printed Wiring Board ­ Input Section ­ ... 7 3-4. Schematic Diagram ­ Main Section ­ ... 8 3-5. Printed Wiring Board ­ Main Section ­ ... 9 3-6. Schematic Diagram ­ Panel Section ­ ... 10 3-7. Printed Wiring Board ­ Panel Section ­ ... 11 3-8. Schematic Diagram ­ Power Section ­ ... 12 3-9. Printed Wiring Board ­ Power Section ­ ... 13 3-10. IC Block Diagrams ... 14 3-11. IC Pin Function ... 14 4. EXPLODED VIEW 4-1. Case Section ... 15 4-2. Front Panel Section ... 16 4-3. Chassis Section ... 17 5. ELECTRICAL PARTS LIST ... 18 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. 2 SECTION 1 GENERAL Front Panel Descriptions 1 2 3 4 5 6 7 8 9 10 11 12 22 1 2 3 4 5 6 7 8 9 10 11 21 20 19 18 17 16 15 12 13 14 15 16 17 18 19 20 21 22 14 13 PROTECTION indicator U (Power) button Remote sensor EON LINK indicator TAPE 1/DAT indicator TAPE 2/MD indicator AUX indicator CD indicator TUNER indicator PHONO indicator INPUT SELECTOR knob VOLUME knob SOURCE DIRECT button and indicator TAPE MONITOR knob SUBSONIC button LOUDNESS button BALANCE knob TREBLE knob BASS knob SPEAKERS knob PHONE jack EON LINK button This section is extracted from instruction manual. 3 SECTION 2 ELECTRICAL ADJUSTMENT Bias Adjustment NOTE: 1. Perform the adjustment after the unit has warmed up sufficiently. 2. Perform the bias adjustment if the power transistor has been replaced. Procedure: 1. Rotate fully the bias adjusting semi-fixed resistors (RV500, RV600) to the MIN position (counterclockwise). 2. Connect a digital voltmeter to the CN500 and CN600. 1 pin CN500 (L-CH) CN600(R-CH) + + 3 pin ­ ­ 3. Set the slide regulator to 0V, and press the U button (ON) on the set. 4. Raise gradually the slide regulator voltage up t