Sony ta fb 940 r service manual

Page 1

2 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. 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

Page 2

3 Front Panel Descriptions SECTION 1 GENERAL 1PROTECTION indicator 2POWER button 3Remote sensor 4EON LINK indicator 5TAPE 1/DAT indicator 6TAPE 2/MD indicator 7AUX indicator 8SACD/CD indicator 9TUNER indicator 10PHONO indicator 11INPUT SELECTOR knob12VOLUME knob 13SOURCE DIRECT button and indicator 14TAPE MONITOR knob 15SUBSONIC button 16LOUDNESS button 17BALANCE knob 18TREBLE knob 19BASS knob 20SPEAKERS knob 21PHONE jack 22EON LINK button 9 78 23 46 5 110 11 1312 14 15 16 17 18 19 20 21 This section is extracted from instruction manual. 22 Rear Panel Descriptions SPEAKERS EON CONTROL R B AL++-“-“ RL++-“-“ TAPE1/DAT L REC OUT INIMPEDANCE USE 4-“16-„¦ A+B USE 8-“16-„¦ BI WIRE USE 4-“16-„¦ IN R L R TAPE2/MDREC OUT IN AUXIN SACD/ CDIN TUNERIN L R PHONOIN SIGNAL GNDU AC OUTLETSWITCHED 100W MAX 4 2 3 5 1 0 qa 9 8 7 6 1PHONO 2U(SIGNAL GND) 3SPEAKERS A/B6Mains lead 7TAPE1/DAT 8TAPE2/MD 4EON CONTROL IN 5AC OUTLET (Except UK, Singapore, Malaysia)9AUX 0SACD/CD qaTUNER