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3 7 63 1515 0
SERVICE MANUAL
TA-DX8 is the amplifier section in
MHC-DX8, MHC-VX88.
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L 13942296513
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SPECIFICATIONS
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INTEGRATED STEREO AMPLIFIER
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TA-DX8
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E Model
Australian Model
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Table of Contents
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Summary of Contents for Sony TA-DX8
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Page 1: Service Manual
TA-DX8 3 7 63 1515 0 SERVICE MANUAL E Model Australian Model TA-DX8 is the amplifier section in MHC-DX8, MHC-VX88. SPECIFICATIONS L 13942296513 INTEGRATED STEREO AMPLIFIER u163 http://www.xiaoyu163.com... -
Page 2: Table Of Contents
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 PUB- LISHED BY SONY. -
Page 3: General
http://www.xiaoyu163.com SECTION 1 GENERAL 3 7 63 1515 0 • LOCATION OF CONTROLS – Front and Top view – SATELLITE MODE switch ON/OFF switch SATELLITE LEVEL control Indicator L 13942296513 – Rear view – SYSTEM CONTROL connector SPEAKER terminal VOLTAGE SELECTOR switch (EXCEPT Mexican and Australian models) u163 http://www.xiaoyu163.com... -
Page 4: Disassembly
http://www.xiaoyu163.com SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note: Follow the disassembly procedure in the numerical order given. COVER 2 two screws (BVTP3 × 10) 1 two screws (case3 TP2) 2 four screws (BVTP3 × 10) 3 cover 1 two screws (case3 TP2) L 13942296513 FRONT PANEL SECTION... -
Page 5: Diagrams
http://www.xiaoyu163.com SECTION 3 DIAGRAMS 3 7 6 3 1 5 1 5 0 MAIN BOARD 3-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagram: 1 wire (flat type) (15 core) • X : parts extracted from the component side. •... -
Page 6: Printed Wiring Board - Main Board
TA-DX8 3-2. PRINTED WIRING BOARD – MAIN Board – 3 7 6 3 1 5 1 5 0 • Semiconductor Location Ref. No. Location D201 D202 D231 D251 D252 D301 D302 (Page 8) D321 D501 D502 D552 IC101 IC111... -
Page 7: Schematic Diagram - Main Board
TA-DX8 3-3. SCHEMATIC DIAGRAM – MAIN Board – 3 7 6 3 1 5 1 5 0 (Page 9) 1 3 9 4 2 2 9 6 5 1 3 w w w The components identified by mark 0 or dotted... -
Page 8: Printed Wiring Boards - Panel/Primary/Secondary Boards
TA-DX8 3-4. PRINTED WIRING BOARDS – PANEL/PRIMARY/SECONDARY Boards – 3 7 6 3 1 5 1 5 0 • Semiconductor Location (Page 6) Ref. No. Location D401 D411 D412 D461 D462 (Page 6) IC401 Q401 Q402 Q403 Q404 Q411... -
Page 9: Schematic Diagram - Panel/Primary/Secondary Boards
TA-DX8 3-5. SCHEMATIC DIAGRAM – PANEL/PRIMARY/SECONDARY Boards – 3 7 6 3 1 5 1 5 0 (Page 7) 1 3 9 4 2 2 9 6 5 1 3 (Page 7) w w w u 1 6 3 The components identified by mark 0 or dotted line with mark 0 are critical for safety. -
Page 10: Exploded View
http://www.xiaoyu163.com SECTION 5 SECTION 4 MAIN EXPLODED VIEW ELECTRICAL PARTS LIST 3 7 6 3 1 5 1 5 0 NOTE: NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by •... - Page 11 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > R166 1-249-437-11 CARBON 1/4W Q111 8-729-119-78 TRANSISTOR 2SC2785-HFE R171 1-249-433-11 CARBON 1/4W Q121 8-729-141-30 TRANSISTOR 2SC3623ATP-LK R172 1-249-419-11 CARBON 1.5K 1/4W Q122...
- Page 12 http://www.xiaoyu163.com MAIN PANEL PRIMARY SECONDARY 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R335 1-249-429-11 CARBON 1/4W R402 1-249-425-11 CARBON 4.7K 1/4W R336 1-249-417-11 CARBON 1/4W R403 1-249-425-11 CARBON 4.7K 1/4W R404 1-249-441-11 CARBON 100K...
- Page 13 http://www.xiaoyu163.com 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MISCELLANEOUS ************** 1-773-012-11 WIRE (FLAT TYPE) (15 CORE) 0 14 1-575-651-11 CORD, POWER 0 T501 1-435-316-11 TRANSFORMER, POWER ************************************************************ ************** HARDWARE LIST ************** 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S...
- Page 14 TA-DX8 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 9-929-220-11 2000D0520-1D Audio Entertainment Group Printed in Japan C 2000. 4 Published by HA Quality Assurance Dept. http://www.xiaoyu163.com...
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Questions and answers
Surround sound not working properly
To fix the surround sound issue on your Sony TA-DX8, follow these steps based on the provided context:
1. Check the Input Signal: Ensure the incoming signal is clean and properly connected. A broken or noisy signal can cause poor sound quality.
2. Inspect the Speaker Output Line: If the speaker-out line is damaged or not properly closed, it can affect surround sound. Look for any physical damage or loose connections.
3. Replace Faulty Components: The issue might be due to damaged internal components, such as the IC STK402-100S. Replacing this part has resolved similar problems.
4. Modify or Bypass the Head Unit: If the amplifier is integrated with a default head unit and not working properly, modifying the unit to work independently may help. This involves circuitry changes.
5. Check for Rough or Noisy Sound: If the sound is still rough after part replacement, further inspect related components for defects or consider checking the preamp section.
6. Power and Mode Settings: Confirm the unit can fully power on and is not stuck in standby. Also, verify it is not locked in satellite mode, which may affect surround output.
Always ensure safety when opening and working on electronic devices.
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Tendrán en existencia el conector del cabezal de modular Sony al amplificador?