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Sony KDL-50W800B Repair Manual

Sony KDL-50W800B Repair Manual

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Self Diagnosis
Supported model
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
REPAIR MANUAL
RB2G
Chassis
Segment: HE
MODEL
COMMANDER
DESTINATION
KDL-50W800B
RM-YD0102
US/CND
KDL-50W800B
Version
Date
Subject
1.0
02/03/2014
Original Manual Release Date.
LCD Digital Color TV
9-883-564-01

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Summary of Contents for Sony KDL-50W800B

  • Page 1 Self Diagnosis Supported model HISTORY INFORMATION FOR THE FOLLOWING MANUAL: REPAIR MANUAL RB2G Chassis Segment: HE MODEL COMMANDER DESTINATION KDL-50W800B RM-YD0102 US/CND KDL-50W800B Version Date Subject 02/03/2014 Original Manual Release Date. LCD Digital Color TV 9-883-564-01...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Cautions and Warnings ...................ii Section 4 - Exploded View/Part Number Information .........19 Table Top Stand ...................19 Section 1 - Specifications and Layouts ............1 KDL-50W800B ....................20 Specifications ....................1 Smart Core Block ..................21 Checking the Accessories..................1 Board Layout ....................2 Connectors ....................22...
  • Page 3: Cautions And Warnings

    Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le NOTE: Do not modify the original design without obtaining written permission present manuel ou dans des supplements publies par Sony.
  • Page 4: How To Find A Good Earth Ground

    0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. A commercial leakage tester. Follow the manufacturers’ instructions provided with the tester. A battery-operated AC milliammeter. Figure B. Checking for earth ground. KDL-50W800B...
  • Page 5: Section 1 - Specifications And Layouts

    SECTION 1 - SPECIFICATIONS AND LAYOUTS SPECIFICATIONS System Model name KDL-50W800B Television system NTSC: American TV standard Power and others ATSC (8VSB terrestrial): ATSC compliant 8VSB Power requirement 19,5 V DC with AC adapter QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality)
  • Page 6: Board Layout

    SECTION 1 - SPECIFICATIONS AND LAYOUTS BOARD LAYOUT KDL-50W800B SMART CORE BLOCK HSC2 BOARD BT MODULE TUNER BOARD (TUS BOARD) MAIN BOARD (BAX BOARD) LD BOARD SWITCH UNIT WIRELESS LAN CARD SMART CORE KDL-50W800B...
  • Page 7: Wire Dressing

    SECTION 1 - SPECIFICATIONS AND LAYOUTS WIRE DRESSING KDL-50W800B SMART CORE BLOCK KDL-50W800B...
  • Page 8: Section 2 - Troubleshooting

    Total operation time by hour (MAX:65535) Total operation time by hour (MAX:65535) *Format of Error History = YYMMDDhhmmss example 120123132522= Jan 23, 2012 13:25:22 (1:25:22PM) NOTE: date and time must be set for this to work SAMPLE SELF CHECK DIAGNOSIS PAGE KDL-50W800B...
  • Page 9: Triage Chart

    *NOTE: REFER TO LCD PANELS SERVICE MANUAL IN REFERENCE LIBRARY DATABASE FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER. To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Service Portal at http://www.sony.com/asp.
  • Page 10: Flowcharts And Diagrams

    AUDIO OUT ETHERNET LCD PANEL HEAD PHONES LVDS TCON TUNER BOARD LED BACKLIGHTS VIDEO 1 CVBS VIDEO 2 CVBS/COMP TUNER DEMODULATOR TUNER ADC / DAC LOCAL DIMMING TUNER SMART CORE IR RX WIFI SWITCH UNIT HSC2 AC ADAPTOR AC IN KDL-50W800B...
  • Page 11: Power And Control Block Diagram

    BL_ERR +19.5V_HOLD(12V) +19.5V_SS(12V) +19.5V(12V) REG+12V +19.5V(12V) +19.5V_SS(12V) BL_ERR +19.5V_HOLD(12V) POWER_ON REG+12V AC_OFF_DET LD_MODE_SW PANEL STBY+3.3V STBY+3.3V MODULE AC_OFF_DET PWM_3 POWER_ON IP_REF LD_STBY PWM_2 IP_REF FB_REF FB_REF PWM_1 LD_PWM_3 LD_STBY LD_PWM_2 PWM_0 LD_PWM_1 LD_PWM_0 LD_MODE_SW AC_IN DC-IN DC IN DC_GND KDL-50W800B...
  • Page 12: No Power Flowchart

    Does TV turn ON? Main Board* Pin 12 CN2001 on 3.3 volts? on front of TV? LD Board. See: Standby LD Board AC Adaptor* LED Blinking flowchart *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-50W800B...
  • Page 13: Standby Led Blinking Flowchart

    Power Supply Board* Main Board* HEM3 Board Main Board* After a while Check ventilation Immediately TCON* Power Supply LD Board Main Board* (LCD Panel) Board* *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-50W800B...
  • Page 14: Video Distortion Flowchart

    Main Board* (LCD Panel) Any horizontal LCD Panel* lines? Any single or LCD Panel* isolated vertical lines? More than 1 TCON* vertical band? (LCD Panel) *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-50W800B...
  • Page 15: No 3D Viewing

    Active Double images Active 3D become one/ 3D Glasses/ become one? Glasses Remote works One Touch Remote Control? Bluetooth 3D OK Board* *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-50W800B...
  • Page 16: Section 3 - Repair Information

    4. After releasing the hooks, firmly lift upwards as shown to detach Rear Cover from TV. CAUTION: Do not use the Table-Top Stand to hold or carry the TV. 2. Locate and remove all screws from the Rear Cover. KDL-50W800B...
  • Page 17: Replacing The Main Board / Tuner Board

    Connect TV to AC power. 4. Slide brackets to detach from Main Board. c. Wait at least 20 seconds. d. Press on the remote to turn ON the TV. POWER e. Wait until the Software update is completed. KDL-50W800B...
  • Page 18 002 DEST item displays. DIGITAL SERVICE 002 MODEL DIGITAL SERVICE 003 MODELNAME KDL-50W800B 002 MODEL 002 DEST ATSC_UC_BASE WRITE 17. Locate the Serial Number for the TV on the side of the Rear Cover. CAUTION: If the incorrect Destination Data Value is selected, MODEL NO it may corrupt the Sofware requiring a Main Board replacement.
  • Page 19 002 MODEL 22. Press to save the Serial Number. category displays. DIGITAL (MODEL) SERVICE SerialNumberEdit DIGITAL SERVICE *1 SerialNumber 002 MODEL 000 BOARD CHECK 5000001 WRITE 23. Press until 006 VAR_TYPE item displays. DIGITAL SERVICE 002 MODEL 006 VAR_TYPE KDL-50W800B...
  • Page 20 Board Check 1. Replace MAIN BOARD (and TUNER BOARD) CAUTION: If the Main Board is a mismatch to the Tuner Board, 2. Replace TUNER BOARD only a “NG: WRONG COMBINATION OF MAIN BOARD AND TUNER WRITE BOARD” will display. KDL-50W800B...
  • Page 21: Removing The Speakers

    104 STBY_WDT --------------------- --------------------- --------------------- 00 00345 000333 06789 c. To clear the error history and error count press d. Press to exit Self Check Mode. POWER 35. Cycle AC Power (Unplug and plug AC Cord from the outlet). KDL-50W800B...
  • Page 22: Removing The Smart Core Block

    BT Module and Wireless LAN Card. Wireless Wireless LAN Card LAN Card Smart Core Block Smart Core Block BT Module BT Module 4. Pull Bottom Cover on the direction shown to detach from Top Cover. Top Cover Top Cover Bottom Cover Bottom Cover KDL-50W800B...
  • Page 23: Section 4 - Exploded View/Part Number Information

    Specific instructions must be adhered to whenever these components are mark are critical for safety. repaired and/or replaced. (See Appendix A) Replace only with part number specified. REF. NO. PART NO. DESCRIPTION 4-485-111-01 STAND, PIPE 4-462-165-02 STAND, NECK KDL-50W800B...
  • Page 24: Kdl-50W800B

    NOTE: The components identified by a red outline and a mark contain confidential NOTE: The components identified by shading and KDL-50W800B information. Specific instructions must be adhered to whenever these components are mark are critical for safety. repaired and/or replaced. (See Appendix A) Replace only with part number specified.
  • Page 25: Smart Core Block

    (See Appendix A) Replace only with part number specified. REF. NO. PART NO. DESCRIPTION 4-474-893-01 FRONT COVER 1-492-760-11 BT MODULE 4-474-894-01 BACK COVER 1-458-723-11 WIRELESS LAN CARD 4-474-892-01 TOP COVER A-1969-162-A HSC2 BOARD, MOUNTED 4-474-888-01 BOTTOM CASE KDL-50W800B...
  • Page 26: Connectors

    Specific instructions must be adhered to whenever these components are mark are critical for safety. repaired and/or replaced. (See Appendix A) Replace only with part number specified. REF. NO. PART NO. DESCRIPTION 1-848-111-11 (LVDS) FFC WITH CONNECTOR 51P 1-910-804-06 HARNESS ASSEMBLY 1-910-804-02 CONNECTOR ASSEMBLY 30P KDL-50W800B...
  • Page 27: Screws

    (See Appendix A) Replace only with part number specified. DESCRIPTION KDL-50W800B Rear Cover to Panel Bracket (6), Rear Cover to Smart Core (1), 2-580-639-01 SCREW, +BVTP 4X12 TYPE2 IT-3 Rear Cover to Bracket Side (1), Rear Cover to Bracket Under (1),...
  • Page 28: Section 5 - Accessories/Part Number Information

    FLYER, SAFETY (SCREWS TO ATTACH TABLE TOP STAND TO LCD TV) 4-262-708-04 CLAMPER, CABLE For product protection and safety reasons, Sony strongly recommends that you use the screws provided with the TV. 7-600-031-97 TAPE (3M 1350FB-1) 15MMX66M BLK CAUTION: These screws cannot be used to secure the TV...
  • Page 29: Appendix A: Encryption Key Components

    APPENDIX A: ENCRYPTION KEY COMPONENTS Encryption key components developed by Sony Corporation contain confidential information and shall be handled under the non-disclosure obligations provided in the applicable agreement with Sony Corporation (and/or its subsidiary). As part of this agreement specific instructions must be adhered to whenever a Circuit Board containing encryption key components is repaired and/or replaced pursuant to the following: In the service manual the Circuit Board(s) containing encryption key components shall be identified with a red outline and a .

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