Sony SRS-T70 Service Manual
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Sony SRS-T70 Service Manual

Sony SRS-T70 Service Manual

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See also: Operating Instructions
SERVICE MANUAL
Ver 1.0 2000. 01
MICROFILM
SPECIFICATIONS
SRS-T70
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
ACTIVE SPEAKER SYSTEM
US Model
Canadian Model
AEP Model
E Model
Tourist Model

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  • Page 1 SRS-T70 SERVICE MANUAL US Model Canadian Model Ver 1.0 2000. 01 AEP Model E Model Tourist Model SPECIFICATIONS Notes on chip component replacement • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be dam- aged by heat.

  • Page 2: Section 1 General

    SECTION 1 This section is extracted from instruction manual. GENERAL • LOCATION OF CONTROLS – 2 –...

  • Page 3: Section 2 Disassembly

    SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. Front case Speaker unit (SP1) (L ch) Speaker unit (SP2) (R ch) AMP board Jack board Note: Follow the disassembly procedure in the numerical order given. FRONT CASE 3 six screws (P2.6 ×...
  • Page 4 SPEAKER UNIT (SP1) (L ch), SPEAKER UNIT (SP2) (R ch) 1 Remove two solders of speaker unit (SP1) (L ch) lead. 1 Remove two solders of speaker unit (SP2) (R ch) lead. 2 two screws (P2.6 × 6) 4 Remove the rotary shaft holder in the direction of arrow A.
  • Page 5 SRS-T70 SECTION 3 DIAGRAMS AMP BOARD, JACK BOARD 3-1. BLOCK DIAGRAM POWER Note: When mounting the AMP board, OFF/DIRECT align the position of switch (S1) switch knob POWER AMP and the switch knob. S1 (1/4) (LINE INPUT) IN1+ POWER OUT1...

  • Page 6: Printed Wiring Board

    SRS-T70 3-2. PRINTED WIRING BOARD Note on Printed Wiring Boards: • X : parts extracted from the component side. • Y : parts extracted from the conductor side. • : Through hole. • b : Pattern from the side which enables seeing.

  • Page 7: Schematic Diagram

    SRS-T70 3-3. SCHEMATIC DIAGRAM • IC Block Diagram IC1, 2 TEA2025D-013TR 17 16 15 14 13 12 THERMAL PROTECT START CIRCUIT DECOUPLING Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

  • Page 8: Section 4 Exploded View

    SECTION 4 SECTION 5 JACK EXPLODED VIEW ELECTRICAL PARTS LIST NOTE: NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they • Due to standardization, replacements in the • Items marked “*” are not stocked since they When indicating parts by reference number, please include the board.

  • Page 9: Hardware List

    Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ************** HARDWARE LIST ************** 7-685-103-19 SCREW +P 2X5 TYPE2 NON-SLIT 7-685-133-19 SCREW +P 2.6X6 TYPE2 SLIT 7-685-135-19 SCREW +P 2.6X10 TYPE2 SLIT 7-621-255-40 SCREW +P 2X6 ************************************************************ ACCESSORIES & PACKING MATERIALS ********************************* 3-042-998-11 MANUAL, INSTRUCTION (ENGLISH, SPANISH) (US)
  • Page 10 SRS-T70 Sony Corporation 2000A0574-1 9-927-198-11 Personal Audio Division Company Printed in Japan C 2000. 1 – 14 – Published by General Engineering Dept.

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