Sony TA-FB920R Service Manual
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Sony TA-FB920R Service Manual

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TA-FB920R

SERVICE MANUAL

AEP Model
UK Model
E Model
Australian Model
Photo: BLACK model
SPECIFICATIONS
INTEGRATED STEREO AMPLIFIER
MICROFILM
– 1 –

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Summary of Contents for Sony TA-FB920R

  • Page 1: Service Manual

    TA-FB920R SERVICE MANUAL AEP Model UK Model E Model Australian Model Photo: BLACK model SPECIFICATIONS INTEGRATED STEREO AMPLIFIER MICROFILM – 1 –...

  • Page 2: Table Of Contents

    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 –...

  • Page 3: General

    SECTION 1 GENERAL Front Panel Descriptions 1 PROTECTION indicator 12 VOLUME knob 2 U (Power) utton 13 SOURCE DIRECT button and indicator 3 Remote sensor 14 TAPE MONITOR knob 4 EON LINK indicator 15 SUBSONIC button 5 TAPE 1/DAT indicator 16 LOUDNESS button 6 TAPE 2/MD indicator 17 BALANCE knob...

  • Page 4: Electrical Adjustments

    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).

  • Page 5: Diagrams

    SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION WAVEFORM THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) 3.8Vp-p For schematic diagrams. 4MHz Note: IC902 1 XOUT •...

  • Page 6: Schematic Diagram - Input Section

    TA-FB920R 3-2. SCHEMATIC DIAGRAM – INPUT SECTION – (Page 12) (Page 16) (Page 15, 16) – 7 – – 8 –...

  • Page 7: Printed Wiring Board - Input Section

    TA-FB920R 3-3. PRINTED WIRING BOARD – INPUT SECTION – • See page 5 for Circuit Boards Location. (Page 18) (Page 18) (Page 13) – 9 – – 10 –...

  • Page 8: Schematic Diagram - Main Section

    TA-FB920R 3-4. SCHEMATIC DIAGRAM – MAIN SECTION – • See page 23 for IC Block Diagrams. (Page 16) (Page 16) (Page 20) (Page 20) (Page 15) (Page 8) – 11 – – 12 –...

  • Page 9: Printed Wiring Board - Main Section

    TA-FB920R 3-5. PRINTED WIRING BOARD – MAIN SECTION – • Semiconductor Location • See page 5 for Circuit Boards Location. Ref. No. Location D500 C-10 D501 C-10 D502 C-10 D503 E-11 D504 E-10 (Page 22) D505 E-10 D506 D511 D512...

  • Page 10: Schematic Diagram - Panel Section

    TA-FB920R 3-6. SCHEMATIC DIAGRAM – PANEL SECTION – • See page 6 for Waveforms. • See page 23 for IC Block Diagram. • See page 24 for IC Pin Function. (Page 8) (Page 11) (Page 11) (Page 7) (Page 12) –...

  • Page 11: Printed Wiring Board - Panel Section

    TA-FB920R 3-7. PRINTED WIRING BOARD – PANEL SECTION – • See page 5 for Circuit Boards Location. (Page 9) (Page 9) • Semiconductor Location (Page 14) Ref. No. Location D901 D902 D903 D904 D905 D906 (Page 14) D907 D910 D911...

  • Page 12: Schematic Diagram - Power Section

    TA-FB920R 3-8. SCHEMATIC DIAGRAM – POWER SECTION – (Page 12) (Page 11) – 19 – – 20 –...

  • Page 13: Printed Wiring Board - Power Section

    TA-FB920R 3-9. PRINTED WIRING BOARD – POWER SECTION – • See page 5 for Circuit Boards Location. (Page 14) (Page 13) – 21 – – 22 –...

  • Page 14: Ic Block Diagrams

    3-10. IC BLOCK DIAGRAMS 3-11. IC PIN FUNCTION • IC902 Input Control & LED Drive (TMP47C103N-JP47) • Main section Pin No. Pin Name Function X OUT IC700 uPC1237HA System clock (4MHz) X IN RESET Reset input OVER LOAD DET Mode select input (Connected to ground) MUTE VOL + Motor drive output (+)

  • Page 15: Exploded View

    SECTION 4 EXPLODED VIEWS NOTE: The components identified by • Hardware (# mark) list and accessories and packing • Items marked “*” are not stocked since they are mark ! or dotted line with mark materials are given in the last of this parts list. seldom required for routine service.

  • Page 16: Front Panel Section

    4-999-492-01 CUSHION (DOOR)(BLACK) 3-024-055-01 BUTTON (POWER) 4-999-406-01 KNOB (D18)(BLACK) * 56 4-999-492-11 CUSHION (DOOR)(SILVER) 4-999-406-11 KNOB (D18)(SILVER) 4-942-568-41 EMBLEM (NO.5), SONY (BLACK) 4-942-568-51 EMBLEM (NO.5), SONY (SILVER) 4-980-773-01 BUTTON (DIA. 6)(BLACK) 4-965-651-01 EMBLEM (MOS)(BLACK) 4-980-773-11 BUTTON (DIA. 6)(SILVER) 4-965-651-11 EMBLEM (MOS)(SILVER)

  • Page 17: Chassis Section

    4-3. CHASSIS SECTION supplied Q511 Q612 Q702 Q512 supplied supplied Q611 not supplied Supplied with RV301, supplied RV302,RV303,S801,S903 Supplied with J801 Supplied not supplied with S902 supplied Supplied with RV300 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

  • Page 18: Electrical Parts List

    SECTION 5 INPUT ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in the parts list • SEMICONDUCTORS The components identified by In each case, u: µ , for example: may be different from the parts specified in the mark ! or dotted line with mark uA...: µ...
  • Page 19 INPUT MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R202 1-259-239-11 CARBON 1/4W C610 1-128-200-11 ELECT 47uF R203 1-259-239-11 CARBON 1/4W C611 1-102-978-00 CERAMIC 220PF R204 1-259-239-11 CARBON 1/4W C612 1-136-163-00 FILM 0.068uF R205 1-259-239-11 CARBON 1/4W C613 1-136-163-00 FILM...
  • Page 20 MAIN OUTLET PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q600 8-729-045-15 TRANSISTOR 2SC5169-FG R612 1-259-171-21 CARBON 1.5K 1/4W R613 1-259-167-21 CARBON 1/4W Q601 8-729-201-53 TRANSISTOR 2SA1015-GR R614 1-249-258-11 CARBON 100K 1/3W Q602 8-729-201-53 TRANSISTOR 2SA1015-GR R615 1-259-143-21 CARBON 1/4W...
  • Page 21 PANEL PHONO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C912 1-126-786-11 ELECT 47uF Q921 8-729-422-57 TRANSISTOR UN4111 Q922 8-729-422-57 TRANSISTOR UN4111 < CONNECTOR > Q923 8-729-422-57 TRANSISTOR UN4111 * CN300 1-564-522-11 PLUG, CONNECTOR 7P Q924 8-729-422-57 TRANSISTOR UN4111 * CN301 1-564-526-11 PLUG, CONNECTOR 11P...
  • Page 22 PHONO S-D LED Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C170 1-126-023-11 ELECT 100uF R251 1-249-911-11 CARBON 1/4W C171 1-136-165-00 FILM 0.1uF R252 1-259-215-21 CARBON 100K 1/4W R253 1-259-215-21 CARBON 100K 1/4W C172 1-136-165-00 FILM 0.1uF R254 1-259-161-21 CARBON...
  • Page 23 S-D LED SIRCS SIRCS SUB SP-TM Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < DIODE > < CONNECTOR > D908 8-719-046-38 DIODE SEL5821A-TH8F (SOURCE DIRECT) CN702 1-770-831-11 CONNECTOR, BOARD TO BOARD 6P CN703 1-566-212-11 PIN, CONNECTOR 3P (EON CONTROL) <...
  • Page 24 TONE Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4407-606-A TONE BOARD, COMPLETE (AEP,G,EE,MY,SP,AUS) R806 1-247-751-11 CARBON 1/2W R807 1-247-231-11 CARBON 1/2W ******************** A-4417-195-A TONE BOARD, COMPLETE (UK) R808 1-247-231-11 CARBON 1/2W R809 1-247-231-11 CARBON 1/2W ******************** R810 1-247-231-11 CARBON...
  • Page 25 Ref. No. Part No. Description Remark ACCESSORIES & PACKING MATERIALS ******************************* 1-473-656-11 REMOTE COMMANDER (RM-S316) 3-864-335-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH,SPANISH,PORTUGUESE) 3-864-335-21 MANUAL, INSTRUCTION (AEP,G,EE,MY,SP,AUS) (GERMAN,DUTCH,SWEDISH,ITALIAN) 4-981-643-01 COVER,BATTERY (FOR RM-S316) ************************************************************** ************* HARDWARE LIST ************* 7-682-548-09 SCREW (3X8) 7-621-773-95 SCREW +B 2.6X6 7-685-885-09 SCREW +BVTT 4X16 (S) –...

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