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Sony KDL-32R420B Repair Manual

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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
REPAIR MANUAL
Version
Date
1.0
02/20/2014
KDL-40R470B
Subject
Original Manual Release Date.
MODEL
COMMANDER
KDL-32R420B
RM-YD092
KDL-40R470B
RM-YD092
Self Diagnosis
Supported model
ITC3
Chassis
Segment: ME
DESTINATION
US/CND
US/CND
LCD Digital Color TV
9-883-586-01

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  Summary of Contents for Sony KDL-32R420B

  • Page 1 Self Diagnosis Supported model HISTORY INFORMATION FOR THE FOLLOWING MANUAL: REPAIR MANUAL ITC3 Chassis Segment: ME MODEL COMMANDER DESTINATION KDL-32R420B RM-YD092 US/CND KDL-40R470B RM-YD092 US/CND KDL-40R470B Version Date Subject 02/20/2014 Original Manual Release Date. LCD Digital Color TV 9-883-586-01...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Cautions and Warnings ...................ii Section 4 - Exploded View/Part Number Information .........17 Table Top Stand ...................17 Section 1 - Specifications and Layouts ............1 KDL-32R420B/40R470B ................18 Specifications ....................1 Connectors ....................20 Checking the Accessories..................1 Board Layout ....................2 Screws ......................21 KDL-32R420B/40R470B..................2...
  • 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: 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-32R420B/40R470B...
  • Page 5: Section 1 - Specifications And Layouts

    SECTION 1 - SPECIFICATIONS AND LAYOUTS SPECIFICATIONS Model name KDL-40R470B KDL-32R420B System Power and others Television system NTSC: American TV Standard ATSC (8VSB terrestrial): ATSC Compliant 8VSB Power requirement 19.5 V DC with AC adapter, Rating: Input 110-240 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-32R420B/40R470B MAIN BOARD (BIS BOARD) SWITCH UNIT WIRELESS LAN CARD HIL BOARD KDL-32R420B/40R470B...
  • Page 7: Wire Dressing

    SECTION 1 - SPECIFICATIONS AND LAYOUTS WIRE DRESSING KDL-32R420B/40R470B KDL-32R420B/40R470B...
  • Page 8: Section 2 - Troubleshooting

    TV and then turn it off again. POWER SAMPLE SELF CHECK DIAGNOSIS PAGE Press the following buttons on the Remote Commander within 1 second of each other: Info Channel Volume POWER NOTE: This differs from accessing Service Adjustments Mode (Volume +). KDL-32R420B/40R470B...
  • Page 9: Triage Chart

    *NOTE: REFER TO LCD PANEL 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 COMPONENT/ COMPOSITE AUDIO IN (ANALOG) HDMI 1 (ARC) AUDIO OUT HDMI 2 (MHL) MT5560 A/V DECODER OPTICAL AUDIO OUT A/V PROCESS LCD PANEL, TCON LVDS & LED BACKLIGHTS BOARD CONTROL Wi-Fi KEYS IR RX AC ADAPTER AC IN KDL-32R420B/40R470B...
  • Page 11: Power And Control Block Diagram

    SECTION 2 - TROUBLESHOOTING POWER AND CONTROL BLOCK DIAGRAM KDL-32R420B (LED BACKLIGHTS) AC ADAPTOR CN9000 CN100 BL_VCC03 LED_VCC BL_LED01 LED1- BL_LED02 LED2- BL_LED03 LED3- BL_VCC01 BL_VCC02 BL_VCC04 BL_LED04 BL_LED05 BL_LED06 SOURCE BOARD CN8601 POWER PANEL_VCC POWER PANEL_VCC POWER PANEL_VCC PANEL_VCC...
  • Page 12: Kdl-40R470B

    RX2N_EVEN RX1_CN_I RX1P_EVEN RX1_BP_I RX1N_EVEN RX1_BN_I RX1_AP_I RX0P_EVEN RX1_AN_I RX0N_EVEN RX0_EP_I RX4P_ODD RX0_EN_I RX4N_ODD RX0_DP_I RX3P_ODD RX3N_ODD RX0_DN_I RXCLKP_ODD RX0_CLKP_I RXCLKN_ODD RX0_CLKN_I RX2P_ODD RX0_CP_I RX2N_ODD RX0_CN_I RX1P_ODD RX0_BP_I RX1N_ODD RX0_BN_I RX0P_ODD RX0_AP_I RX0N_ODD RX0_AN_I POWER POWER POWER POWER POWER KDL-32R420B/40R470B...
  • Page 13: No Power Flowchart

    19.5V AC Adaptor Does the Is red standby Main Board* TV turn LED on front panel blinking? See Standby AC Adaptor* LED Blinking flowchart *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page KDL-32R420B/40R470B...
  • Page 14: Standby Led Blinking Flowchart

    Protect Shutdown. Standby LED Blinking AC Adaptor / Fuente de Poder* Main Board* Main Board* Main Board* “SONY” logo LCD Panel* Light Source appears before Board* shutdown? Main Board* *For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page...
  • 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 KDL-32R420B/40R470B...
  • Page 16: Section 3 - Repair Information

    3. Install the latest version of Software (Required for ALL repairs). 4. Perform the required service adjustments and checks. 5. Verify the repair resolved the issue. KDL-32R420B KDL-40R470B REMOVING THE TABLE TOP STAND 2. Locate the areas shown in the illustration and detach the Lower Cover from the TV.
  • Page 17: Replacing The Main Board

    Insert the USB device with the latest Software into one of the TVs’ USB ports. b. Connect TV to AC power. 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-32R420B/40R470B...
  • Page 18 7. Press to select the correct Panel Code for the TV model. (Use the table below for reference). Service Mode Model Name Panel Code Status Information >> KDL-32R420B IS4S320DNG0101 Self diagnosis history >> Panel Selection <[ ]> NS4S400DND0101 KDL-40R470B...
  • Page 19 Status Digital RF Information Low of HPD <[ ]> UART Selection Factory SERIAL NUMBER EDIT 5000001 Selected text displays in black _ _ _ _ _ _ _ _ _ _ _ MODEL NAME EDIT <[ ]> TEST RESET [</>]Set [Home] Exit KDL-32R420B/40R470B...
  • Page 20: Removing The Speakers

    17. When the complete Model Name displays, press to select YES and then 18. On the confirmation screen, press Input Data Correct? Selected text displays in black 19. Press to exit Service Mode. POWER KDL-32R420B/40R470B...
  • Page 21: 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 4-532-674-01 STAND BASE (S) (KDL-32R420B ONLY) 4-532-675-01 STAND BASE (M) (KDL-40R470B ONLY) KDL-32R420B/40R470B...
  • Page 22: Kdl-32R420B/40R470B

    PART NO. DESCRIPTION 1-458-751-11 WIRELESS LAN CARD A-1989-285-A BIS BOARD, COMPLETE (KDL-32R420B ONLY) AFTER REPLACING THE MAIN BOARD, YOU MUST UPDATE THE SOFTWARE TO THE LATEST VERSION. A-1989-295-A BIS BOARD, COMPLETE (KDL-40R470B ONLY) AFTER REPLACING THE MAIN BOARD, YOU MUST UPDATE THE SOFTWARE TO THE LATEST VERSION.
  • Page 23 FOR ALL LCD PANEL AND TCON BOARD PART NUMBER INFORMATION REFER TO THE LCD PANELS SERVICE MANUAL. 4-476-162-01 BRACKET, SP (KDL-40R470B ONLY) 1-858-991-21 SPEAKER BOX (RIGHT) (KDL-32R420B ONLY) 1-858-963-21 SPEAKER BOX (RIGHT) (KDL-40R470B ONLY) 4-476-164-01 STAND BRACKET A-1979-259-A HIL BOARD, MOUNTED...
  • Page 24: Connectors

    Replace only with part number specified. REF. NO. PART NO. DESCRIPTION 1-848-372-11 FLEXIBLE FLAT CABLE 5P 1-848-206-11 (LVDS) FLEXIBLE FLAT CABLE 30P (KDL-32R420B ONLY) 1-848-200-11 (LVDS) FLEXIBLE FLAT CABLE 51P (KDL-40R470B ONLY) 1-910-804-34 HARNESS ASSEMBLY (KDL-32R420B ONLY) 1-910-804-36 HARNESS ASSEMBLY...
  • Page 25: Screws

    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. DESCRIPTION KDL-32R420B KDL-40R470B Wireless Lan Card (1), Rear Cover (7), Rear Cover (9), Wireless Lan Card (1), 7-685-647-79...
  • Page 26: 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 27: 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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Kdl-40r470b