Sony KDL-55W790B Repair Manual
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Also See for KDL-55W790B:
- I-manual (223 pages) ,
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- Operating instructions manual (76 pages)
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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
REPAIR MANUAL
Version
Date
1.0
04/16/2014
KDL-55W800B
Subject
Original Manual Release Date.
RB2G
MODEL
COMMANDER
KDL-55W790B
RM-YD102
KDL-55W800B
RM-YD102
Self Diagnosis
Supported model
Chassis
Segment: HE
DESTINATION
US/CND
US/CND
LCD Digital Color TV
9-888-601-01
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Table of Contents
Related Manuals for Sony KDL-55W790B
Summary of Contents for Sony KDL-55W790B
- Page 1 Self Diagnosis Supported model HISTORY INFORMATION FOR THE FOLLOWING MANUAL: REPAIR MANUAL RB2G Chassis Segment: HE MODEL COMMANDER DESTINATION KDL-55W790B RM-YD102 US/CND KDL-55W800B RM-YD102 US/CND KDL-55W800B Version Date Subject 04/16/2014 Original Manual Release Date. LCD Digital Color TV 9-888-601-01...
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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-55W790B/55W800B ................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 present manuel ou dans des supplements publies par Sony. Les reglages NOTE: Do not modify the original design without obtaining written permission de circuit dont l’importance est critique pour la securite du fonctionnement... -
Page 4: Leakage Test
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-55W790B/55W800B... -
Page 5: Section 1 - Specifications And Layouts
SECTION 1 - SPECIFICATIONS AND LAYOUTS SPECIFICATIONS System Model name KDL-55W790B/55W800B Television system NTSC: American TV standard ATSC (8VSB terrestrial): ATSC compliant 8VSB Power and others QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality) Power requirement 19.5 V DC with AC adapter Rating: Input 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 KDL-55W790B/55W800B SMART CORE BLOCK HSC2-S BOARD BT MODULE TUS BOARD MAIN BOARD (BAXL BOARD) LD BOARD SWITCH UNIT WIRELESS LAN CARD SMART CORE KDL-55W790B/55W800B... -
Page 7: Wire Dressing
SECTION 1 - SPECIFICATIONS AND LAYOUTS WIRE DRESSING KDL-55W790B/55W800B SMART CORE BLOCK KDL-55W790B/55W800B... -
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-55W790B/55W800B... -
Page 9: Triage Chart
▲ LD BOARD BT BOARD WIFI AUDIO/ BACK- SOFT- Problem POWER TCON TEMP POWER LIGHT WARE *NOTE: REFER TO LCD PANELS SERVICE MANUAL IN REFERENCE LIBRARY DATABASE FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER. KDL-55W790B/55W800B... -
Page 10: Flowcharts And Diagrams
TCON LED BACKLIGHTS HEADPHONES AUDIO TUNER DEMODULATOR SWITCH TUNER BOARD UNIT ADC / DACAMP VIDEO 1 CVBS OPTICAL VIDEO 2 CVBS/COMP AUDIO OUT LOCAL DIMMING TUNER BAXL SMART CORE IR RX WIFI SWITCH UNIT HSC2 AC ADAPTOR AC IN KDL-55W790B/55W800B... -
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-55W790B/55W800B... -
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-55W790B/55W800B... -
Page 13: Standby Led Blinking Flowchart
Wireless LAN Card* Main Board* After a while Check ventilation Immediately LCD Panel/ TCON* LCD Panel* Main Board* LD Board* (LCD Panel) (LED Backlight) *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-55W790B/55W800B... -
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-55W790B/55W800B... -
Page 15: No 3D Viewing
Remote works One Touch Remote Control? Bluetooth 3D OK Board* *For Part Number information, refer to *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page “Section 4 - Exploded View/Part Number Information” on page KDL-55W790B/55W800B... -
Page 16: Section 3 - Repair Information
4. After releasing the hooks, firmly lift upwards as shown to detach 1. Place TV on a flat and steady surface in a standing position. Rear Cover from TV. 2. Locate and remove all screws from the Rear Cover. KDL-55W790B/55W800B... -
Page 17: Replacing The Main Board / Tuner Board
3. Press down the 2 locking clips and pull LVDS cable to release. After ALL repairs UPDATE the SOFTWARE to the latest version. Instructions are included with the Software package on the Sony website. a. Insert the USB device with the latest Software into one of the TVs’... - Page 18 TV displays. 17. Locate the Serial Number for the TV on the side of the Rear Cover. (Use the table below for reference). MODEL NO Model Name Destination Data Value KDL-55W790B US/CND ATSC_UC_BASE KDL-55W800B KDL-55W800B US/CND ATSC_UC_BASE...
- Page 19 28. When the DIGITAL Menu appears, press until 002 MODEL category displays. DIGITAL (MODEL) SERVICE SerialNumberEdit DIGITAL SERVICE *1 SerialNumber 002 MODEL 5000001 WRITE 000 BOARD CHECK 23. Press until 006 VAR_TYPE item displays. DIGITAL SERVICE 002 MODEL 006 VAR_TYPE KDL-55W790B/55W800B...
- Page 20 Board Check 1. Replace MAIN BOARD (and TUNER BOARD) CAUTION: If the Main Board is a mismatch to the Tuner Board, a “NG: WRONG COMBINATION OF MAIN BOARD AND TUNER 2. Replace TUNER BOARD only WRITE BOARD” will display. KDL-55W790B/55W800B...
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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-55W790B/55W800B... -
Page 22: Removing The Smart Core Block
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-55W790B/55W800B... -
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 4-532-540-01 STAND, PIPE 4-462-165-02 STAND, NECK KDL-55W790B/55W800B... -
Page 24: Kdl-55W790B/55W800B
NOTE: The components identified by a red outline and a mark contain confidential NOTE: The components identified by shading and KDL-55W790B/55W800B 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 1-492-760-12 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 4-474-888-02 BOTTOM CASE KDL-55W790B/55W800B... -
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 1-910-804-78 HARNESS ASSEMBLY 1-910-804-77 CONNECTOR ASSEMBLY 30P KDL-55W790B/55W800B... -
Page 27: Screws
(See Appendix A) Replace only with part number specified. DESCRIPTION KDL-55W790B/55W800B Rear Cover - SP Bracket (6), Rear Cover - SmartCore (1), 2-580-639-01 SCREW, +BVTP 4X12 TYPE2 IT-3 Rear Cover - Bracket Side (1), Rear Cover - Bracket Under (1) -
Page 28: Section 5 - Accessories/Part Number Information
4-414-470-01 SUPPORT BELT KIT (SCREWS TO ATTACH TABLE TOP STAND TO LCD TV) For product protection and safety reasons, Sony strongly recommends REMOTE COMMANDER that you use the screws provided with the TV. CAUTION: These screws cannot be used to secure the TV PART NO. -
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 .