Sony XBR-70X850B Repair Manual
Lcd digital color tv
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Also See for XBR-70X850B:
- Operating instructions manual (82 pages) ,
- Brochure & specs (5 pages) ,
- Operating instructions manual (80 pages)
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Table of Contents
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Summary of Contents for Sony XBR-70X850B
- Page 1 Self Diagnosis Supported model HISTORY INFORMATION FOR THE FOLLOWING MANUAL: REPAIR MANUAL RB2T Chassis Segment: HA MODEL COMMANDER DESTINATION XBR-70X850B RM-YD102 /RMF-YD003 US/CND XBR-70X850B Version Date Subject 04/28/2014 Original Manual Release Date. LCD Digital Color TV 9-888-607-01...
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Page 2: Table Of Contents
Removing the Rear Cover ...................13 Checking the Accessories..................1 Replacing the Main Board and Tuner Board ..........14 Board Layout ....................2 Replacing the Power Supply Board .............17 XBR-70X850B .......................2 Replacing the Switch Unit ................18 Smart Core Block....................2 Removing the USB Assembly ..............18 Wire Dressing ....................3 Removing the Speakers ................18... -
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 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. XBR-70X850B...
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Page 5: Section 1 - Specifications And Layouts
SECTION 1 - SPECIFICATIONS AND LAYOUTS SPECIFICATIONS System Model name XBR-70X850B Television system NTSC: American TV standard Power and others ATSC (8VSB terrestrial): ATSC compliant 8VSB 110 V - 240 V AC, 50/60 Hz (U.S.A./Canada 120 V AC, 60 Hz) -
Page 6: Board Layout
SECTION 1 - SPECIFICATIONS AND LAYOUTS BOARD LAYOUT XBR-70X850B SMART CORE BLOCK MAIN BOARD (BAXF BOARD) LD BOARD WIRELESS LAN CARD POWER SUPPLY (G7B BOARD) BT MODULE TUNER BOARD (TUS BOARD) K2 BOARD HSC2 BOARD T CON SWITCH UNIT SMART CORE... -
Page 7: Wire Dressing
SECTION 1 - SPECIFICATIONS AND LAYOUTS WIRE DRESSING XBR-70X850B SMART CORE BLOCK XBR-70X850B... -
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 XBR-70X850B... -
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
CAMERA LED BACKLIGHTS HEADPHONES AUDIO TUNER SWITCH DEMODULATOR TUNER BOARD UNIT ADC / DACAMP VIDEO 1 CVBS OPTICAL VIDEO 2 CVBS/COMP AUDIO OUT LOCAL DIMMING TUNER BAXF SMART CORE IR RX WIFI SWITCH UNIT HSC2 POWER SUPPLY AC IN XBR-70X850B... -
Page 11: Power And Control Block Diagram
LD - CN2002 VLED_GND 1 SET_12V VLED_GND 2 SA_REF_L SENSE_GND 3 GL_CTRL LD_ERR 4 LD_ERR GL_CTRL 5 VLED_GND 13 NC 6 VLED_GND REG12V 7 VLED_GND 8 VLED_GND 9 VLED_GND 10 SA_REF_H 11 VLED_VCC 12 VLED_VCC 13 VLED_VCC 14 VLED_VCC XBR-70X850B... -
Page 12: No Power Flowchart
See Stanby High (3.3V) Power Supply Is Standby LED Power Supply LED Blinking appears Board* blinking? Board* Flowchart momentarily? Power Supply Main Board* Board* *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page XBR-70X850B... -
Page 13: Standby Led Blinking Flowchart
See Triage Chart HEM3 Board Main Board* After a while Check ventilation Imediately LCD Panel/ TCON Power Supply Main Board* LD Board* (LCD Panel)* Board* *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page XBR-70X850B... -
Page 14: No Video Flowchart
Locate Backlights CN6401 on Zero volts at Zero volts at LCD Panel* turned on? Power Supply Pin 5? Pin 3? Board. Sony logo TCON* Main Board* appears Main Board* (LCD Panel) momentarily? Unplug LVDS connector with Test patterns TCON* unit off. Turn unit... -
Page 15: 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 XBR-70X850B... -
Page 16: 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 XBR-70X850B... -
Page 17: Section 3 - Repair Information
1. Place TV in a standing position on a flat surface. 2. Locate and remove all screws from the Rear Cover. 1. Locate and remove 1 screw and disconnect 1 connector from the Camera Module to lift as shown and detach from TV. XBR-70X850B... -
Page 18: Replacing The Main Board And Tuner Board
Cover, Under Cover, Under 6. Lift the Rear Cover as shown to remove. K2, Board K2, Board 4. Locate and remove 4 screws from the Tuner Board, release the clip and lift as shown to detach. Tuner Board Tuner Board XBR-70X850B... - Page 19 11. Select the correct destination of the TV, press to increase or to detach. to decrease the data value (Use the table below for reference). Model Name Destination Data Value XBR-70X850B US/CND ATSC_UC_BASE 12. Press then to save the changes. MUTING...
- Page 20 20. Enter the Serial Number of the TV. MODEL NO NOTE: If the incorrect Serial Number is entered, press RETURN XBR-70X850B to go back to the Serial Number input screen and re-enter the correct number. SERIAL NO 5000001 21. Press to save the Serial Number.
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Page 21: Replacing The Power Supply Board
TV. POWER d. Press to exit the Self Check screen. POWER c. Wait until the Software update is complete and the TV turns OFF. 8. Cycle AC Power (Unplug and plug AC Cord from the outlet). XBR-70X850B... -
Page 22: Replacing The Switch Unit
Bracket, SP R as shown. USB Holder USB Holder 3. Locate the Speaker, disconnect connector and lift as shown to detach. Cable with Cable with Connector Connector (USB) (USB) 4. Refer to these instructions for removing the opposite speaker. XBR-70X850B... -
Page 23: Removing The Smart Core Block
3. Release the hooks to detach the Back Cover, then lift the Mic Unit to remove. Unit Unit 4. Locate and unclamp the clips from BT Module and Wireless LAN Card, then slide as shown to detach. Wireless Wireless BT Module BT Module LAN Card LAN Card XBR-70X850B... -
Page 24: Section 4 - Exploded View/Part Number Information
SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION XBR-70X850B Components not identified by a part number or description The component parts of an assembly are indicated by the reference numbers in are not stocked because they are seldom required for routine the far right column of the parts list and within the dotted lines of the diagram. - Page 25 Bracket RC* Bracket, Stand* Main Plate SmartCore Bracket RC* Bracket Stand Right* *Reinstall Bracket, RC when replacing the LCD Panel. *Reinstall Bracket, Stand Right and Left when replacing the LCD Panel. *Reinstall Bracket, Wall when replacing the LCD Panel. XBR-70X850B...
- Page 26 4-487-101-01 HOLDER, HS WS 2-650-770-31 SLIDE, CLAMP 1-474-578-11 G7B BOARD, COMPLETE 4-487-094-11 SHEET, INSULATION (G7) ORDER THIS PART WHEN REPLACING THE LCD PANEL. *Reinstall Brackets, RC Up,when replacing the LCD Panel. *Reinstall Main, Plate when replacing the LCD Panel. XBR-70X850B...
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Page 27: Smart Core Block
(See Appendix A) Replace only with part number specified. REF. NO. PART NO. DESCRIPTION 4-474-892-01 TOP COVER A-2057-722-A HSC2, BOARD MOUNTED 4-474-888-02 BOTTOM CASE 4-480-411-01 FRONT COVER 1-492-760-12 BT MODULE 1-458-723-11 WIRELESS LAN CARD 1-458-793-11 MIC UNIT 4-480-412-01 BACK COVER XBR-70X850B... -
Page 28: Connectors
207 Conn ASSY 20P REF. NO. PART NO. DESCRIPTION 1-910-109-43 CONNECTOR ASSEMBLY 14P 1-910-109-41 CONNECTOR ASSEMBLY 28P 1-848-370-11 (LVDS) FLEXIBLE FLAT CABLE 41P 1-910-109-42 HARNESS ASSEMBLY (MAIN) 1-848-371-11 (LVDS) FLEXIBLE FLAT CABLE 51P 1-910-109-44 FLEXIBLE FLAT CABLE 20P 1-910-109-52 CONNECTOR ASSEMBLY 20P XBR-70X850B... -
Page 29: Screws
(See Appendix A) Replace only with part number specified. DESCRIPTION XBR-70X850B Cover Under (1), Reflector SP (4), Rear Cover (3), 2-580-639-01 SCREW, +BVTP 4X12 TYPE2 IT-3 Smart Core (2), Bracket RC (2), Back Cover (SC) (1) -
Page 30: Section 5 - Accessories/Part Number Information
4-443-737-02 SUPPORT BELT KIT (SCREWS TO ATTACH TABLE TOP STAND TO LCD TV) For product protection and safety reasons, Sony strongly recommends that you use the screws provided with the TV. REMOTE COMMANDER CAUTION: These screws cannot be used to secure the TV PART NO. -
Page 31: 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 .