Sony SRS-T88 Service Manual
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Sony SRS-T88 Service Manual

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SERVICE MANUAL
Ver 1.0 2004. 01
Sony Corporation
9-961-531-01
2004A1678-1
Personal Audio Company
© 2004.01
Published by Sony Engineering Corporation
SPECIFICATIONS
Speaker section
Enclosure type
Full range, Bass reflex,
magnetically shielded
Speaker system
34 mm (diameter)
8 Ω
Impedance
Rated input power
2 W
Maximum input power
3 W
Amplifier section
Rated output
2 W + 2 W
(10% T.H.D., 1 kHz, 8 Ω)
Bass boost
MEGA BASS
Input
Input cord a stereo-mini plug
(40 cm) × 1
Input impedance
4.7 kΩ (at 1 kHz)
General
Power
Four R6 (size AA) batteries, DC
6 V (supplied AC power
adaptor)
approx. 198 × 75 × 36 mm
Dimensions (w/h/d)
× 3 × 1
(7
7
/
8
(during use)
Mass
approx. 350 g (12 oz.) including
batteries
Supplied accessories
Carrying Pouch (1)
AC power adaptor (1)
Operating Instructions (1)
Plug adaptor * (1)
* For Tourist model, on sale in Japan only.
Battery life
(5 mW + 5 mW output)
Battery type
Usage time
Sony alkaline battery LR6 (SG)
Approx. 30 hours*
Sony manganese battery R6
Approx. 15 hours*
* Usage time stated above may vary according to the
temperature or conditions of use.
Design and specifications are subject to change without
notice.
SRS-T88
Canadian Model
7
/
inch)
16
ACTIVE SPEAKER SYSTEM
US Model
Tourist Model

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  • Page 1 * For Tourist model, on sale in Japan only. Battery life (5 mW + 5 mW output) Battery type Usage time Sony alkaline battery LR6 (SG) Approx. 30 hours* Sony manganese battery R6 Approx. 15 hours* * Usage time stated above may vary according to the temperature or conditions of use.

  • Page 2: Table Of Contents

    LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Servicing Notes

    SRS-T88 SECTION 1 SERVICING NOTES If the TV picture or monitor display is magnetically distorted Although this system is magnetically shielded, there may be cases that the picture on some TV sets/personal computer sets may become magnetically distorted. In such a case, turn off the power of the TV set/personal computer set once, and after 15 to 30 minutes turn it on again.

  • Page 4: General

    SRS-T88 SECTION 2 GENERAL This section is extracted from instruction manual. Using on house current to DC IN 6 V jack Vers la prise DC IN 6 V a la toma DC IN 6 V to wall outlet Vers la prise...
  • Page 5 SRS-T88 Hooking up the speakers POWER POWER VOLUME DIRECT * “WALKMAN” is a registered trademark of Sony CD/MD Walkman*, Corporation to represent Headphone Stereo PC, etc. To LINE OUT or to headphones products. Walkman* CD et MD, jack (stereo mini jack) «...

  • Page 6: Disassenbly

    SRS-T88 SECTION 3 DISASSENBLY Disassenbly the unit in the order as shown below. Note: REAR CABINET SPEAKER AMP BOARD Note: Follow the disassembly procedure in the numerical order given. 3-1. REAR CABINET 4 Remove three solders of the AMP board.

  • Page 7: Speaker

    SRS-T88 3-2. SPEAKER 1 Remove the four solders. (white) (red) (white) (red) 4 speaker (SP1) 3 speaker (SP2) 2 four screws (+P B2.6) 3-3. AMP BOARD 3 Remove four solders of the AMP board. 2 top cover 6 AMP board 4 Reomve three solders of the AMP board.

  • Page 8: Diagrams

    SRS-T88 SECTION 4 DIAGRAMS Note on Schematic Diagrams: • 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 W or less unless otherwise specified.

  • Page 9: Printed Wiring Board

    SRS-T88 4-1. PRINTED WIRING BOARD • Semiconductor Location Ref. No. Location (12) (12) (L CH) (R CH) VOLUME C106 STEREO POWER PLUG (12) (12) (12) DRY BATTERY SIZE "AA" (IEC DESGNATION LR6) 4PCS, 6.0V...

  • Page 10: Schematic Diagrams

    SRS-T88 4-2. SCHEMATIC DIAGRAMS SW1(4/4) 6.3V SW1(3/4) 4.7k TEA2025D-013TR RV1(1/2) 4.7k DTC144TKA-T146 4.7k C101 0.047 6.3V C103 1SS123-T1 6.3V UDZSTE-176.8B SW1(2/4) TP15 TP10 VCC+ TP11 TP16 4.7k JACK SW(GND) JACK SW(GND) TP12 TP17 RV1(2/2) 4.7k TEA2025D-013TR DTC144TKA-T146 4.7k C102 SW1(1/4)
  • Page 11 SRS-T88 • IC Block Diagram IC1, IC2 TEA2025D-013TR (AMP board) (THERMAL START CIRCUIT PROTECT) GND(Sub) IN 2(+) IN 1(+) FEEDBACK FEEDBACK DECOUPLING BOOT 2 BOOT 1 OUT 2 OUT 1 BRIDGE...

  • Page 12: Exploded Views

    SRS-T88 SECTION 5 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number have some differences from the original one. in the exploded views are not supplied. • Items marked “ * ” are not stocked since they are seldom required for routine service.

  • Page 13: Electrical Parts List

    SRS-T88 SECTION 6 JACK ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS: When indicating parts by reference number, uF: µF parts list may be different from the parts please include the board name. specified in the diagrams or the components •...
  • Page 14 SRS-T88 Ref. No. Part No. Description Remarks MISCELLANEOUS ************** 1-827-763-21 CORD (WITH PLUG) 1-825-612-11 SPEAKER 1-825-612-11 SPEAKER ACCESSORIES ************ 1-476-219-13 ADAPTOR, AC (AC-E60A) (JE) 1-476-657-12 ADAPTOR, AC (CND, US) 1-569-007-12 ADAPTOR, CONVERSION 2P (JE) 3-258-804-01 MANUAL, INSTRUCTION (JAPANESE) (JE) 3-258-804-11 MANUAL, INSTRUCTION...
  • Page 15 SRS-T88 MEMO...
  • Page 16 SRS-T88 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...

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