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Sony FW-43BZ35F Service Manual
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Sony FW-43BZ35F Service Manual

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2023/11/28 11:28:19 (GMT+09:00)
SERVICE MANUAL (TROUBLESHOOTING)
ORIGINAL MANUAL ISSUE DATE: 2023/11
DISCLAIMER:
USE AT OWN RISK. SONY AND ITS AFFILIATES ARE NOT LIABLE FOR
9-888-744-21
ANY DAMAGE OR INJURY CAUSED TO ANY DIGITAL ELECTRONIC EQUIPMENT,
PERSON, OR PROPERTY, WHICH OCCURS DUE TO USE OF THE TOOLS, PARTS,
LCD TV
DOCUMENTATION, OR OTHER MATERIALS HEREIN PROVIDED, WHETHER FOR REPAIR,
DIAGNOSIS, MAINTENANCE, MODIFICATION, OR OTHERWISE, INCLUDING BUT NOT
LIMITED TO: ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES;
ANY LOSS OF DATA, PRIVACY OR PROFITS; OR ANY INABILITY TO USE, OR REDUCED
FUNCTIONALITY OF, THE DIGITAL ELECTRONIC EQUIPMENT.
Sony EMCS (Malaysia) Sdn. Bhd. HES-M
The manual is intended for a trained professional and the use of the manual is at your own risk.
© 2023.11
SYS SET

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Summary of Contents for Sony FW-43BZ35F

  • Page 1 SERVICE MANUAL (TROUBLESHOOTING) ORIGINAL MANUAL ISSUE DATE: 2023/11 DISCLAIMER: USE AT OWN RISK. SONY AND ITS AFFILIATES ARE NOT LIABLE FOR 9-888-744-21 ANY DAMAGE OR INJURY CAUSED TO ANY DIGITAL ELECTRONIC EQUIPMENT, PERSON, OR PROPERTY, WHICH OCCURS DUE TO USE OF THE TOOLS, PARTS,...
  • Page 2 2023/11/28 11:28:19 (GMT+09:00) MODEL LIST THIS SERVICE MANUAL CONTAINS TROUBLESHOOTING INFORMATION FOR BELOW REGIONS AND MODELS: MODEL FW-43BZ35F FW-49BZ35F SYS SET...
  • Page 3 2023/11/28 11:28:19 (GMT+09:00) TABLE OF CONTENTS Section Title Page 1. SAFETY NOTES 2. SELF DIAGNOSTIC FUNCTION 3. TROUBLESHOOTING 4. DIAGRAMS Please refer Service Manual (Disassembly) for below information: -Dissassy and Removal Caution -Wire Dressing -Circuit Board Location -Exploded Views and Parts List Note: Pictures provided in this manual may have difference from actual sets.
  • Page 4 Replace these components with Sony parts whose part 9) Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS). numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operations are identified in this manual.
  • Page 5 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES 10) During the repair, DO NOT leave the POWER ON or Burn-in period for more ※ Things to prepare in advance. than 1 hour while the TV is facing down on a cloth. Refer Figure 1. E S D wr i s t - s t r a p . Figure 1.
  • Page 6 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES ESD cushion / sheet Handle with care. Do not swing Please use a bag containing the board or a special seat Regardless of Good board or Defective board, always put it on 1) Caution for Board handling(Stress).Be sure to observe the following contents. ESD cushion / sheet slowly.
  • Page 7 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES ※ Installation example of wrist-strap. Keep vertical position and put in/take out from Box. Please connect the clip to the metal part of the chassis of the TV with Always put into ESD bag then place into Box/Container Box the wristband grounded.
  • Page 8 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES 1-4. Caution About the Lithium Battery. When holding board, do not hit or touch to Plastic part(s) 1) Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. 2) Outer case broken battery should not contact to water. After take defective board out from TV, put it into ESD bag.
  • Page 9 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES 1-5. Safety Check-Out Stabilized power supply instrument and isolated voltage transformer: After correcting the original service problem, perform the following safety Use too much current capacity and isolated voltage transformer does not need checks before releasing the set to the customer:- to use stabilized power supply equipment.
  • Page 10 2023/11/28 11:28:19 (GMT+09:00) SAFETY NOTES 1-8. Lead Free Information 1-7. How to Find a Good Earth Ground. The circuit boards used in these models have been processed using Lead 1) A cold-water pipe is a guaranteed earth ground; the cover-plate Free Solder. The boards are identified by the LF logo located close to the retaining screw on most AC outlet boxes is also at earth ground.
  • Page 11 2023/11/28 11:28:19 (GMT+09:00) 1-8. FFC Handling Caution WITHDRAWAL OF 41P / 51P FFC CONNECTOR (TYPE1) < Application > WITHDRAWAL OF FFC CONNECTOR < Application > < Connector location > Main board side Main board side Connector location > See as follows < Method > See as follows <...
  • Page 12 2023/11/28 11:28:19 (GMT+09:00) 1-9. Solder-less Tuner Replacement Solder-less tuner replacement procedure  For removing Tuner Module, In the case of small type Tuner module. After un screwed, Automatically the Module will float to correct degree. ① The insertion & extraction angle of the module is permitted to So please extract it with keeping this degree.
  • Page 13 2023/11/28 11:28:19 (GMT+09:00) SECTION 2 SELF DIAGNOSTIC FUNCTION The units in this manual contain a self-diagnostic function. If an error occurs, the Smart Core Red LED will automatically begin to flash. The number of times the LED flashes translates to a probable source of the problem. A definition of the Smart Core Red LED flash indicators is listed in the instruction manual for the user’s knowledge and reference.
  • Page 14 2023/11/28 11:28:19 (GMT+09:00) Self Diag. Quick Reference (Not LED blinking [Record Only]) Record Only Detection Items Item TU_DEMOD None TCON ERR <B/T> T-CON device I2C communication failure FRC device is not finished Initial sequence < B> FRCTC_I2 C FRC de vice I2 C com m unica t ion fa ilu re AUD_ERR_I2C <...
  • Page 15 2023/11/28 11:28:19 (GMT+09:00) Retry Limitation by Remote/Power Key Smart Core Red Error Name Retry Permission Times Note Number of off/on action for MAIN_POWER blinking shutdown is recorded to count STDWN_OFFON_CNT_MAIN_POWER STDWN_RTRY_LIMIT_MAINPOWE MAIN_POWER R = 1 DC_ALERT (5V) STDWN_RTRY_LIMIT = 2 AUD_ERR STDWN_RTRY_LIMIT = 2 LD_ERR STDWN_RTRY_LIMIT = 2 Number of off/on action during the error...
  • Page 16 2023/11/28 11:28:19 (GMT+09:00) SECTION 3 TROUBLESHOOTING Triage Chart Before you make the service call… 1. Confirm the symptom from the customer. 2. Select that symptom from the chart. 3. Bring all the boards and cables listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board. 5.
  • Page 17 2023/11/28 11:28:19 (GMT+09:00) 1.0 NO POWER-PSU Overall Flow chart NO POWER G-Board START 12V output check (12.2~13.2V) Replace Power supply Case 2 AC Connect (80 ~ 288V BL_ON active HIGH Main Board Problem Can TV power on? (~3.3V) Case 4 Case 3 Case 1 LED output check BL Err level check...
  • Page 18 2023/10/03 12:31:06 (GMT+09:00) 2023/11/28 11:28:19 (GMT+09:00) 1.2 No Power – μ-Com Failure P-on u-com control signal path summary POWER_ON +3.3V_STBY #pin6 DDC : +12V_MAIN (IC1000) Vdd Ucom supply voltage PGOOD_1 #pin9 DDC : +1.0V_M2 (IC604) TYPE_DET Type Detection Cir. #pin17 P_ON_#1 DDCs : +1.8V_TU (IC405), +1.0V_BE (IC404) #pin12 BL_ON G-Board / LD2...
  • Page 19 2023/11/28 11:28:19 (GMT+09:00) 1.2 No Power – μ-Com Failure START Check 12V_MON Check +3.3V_STBY Line Check +12V_MAIN Line Check VDD R446 Voltage. (C521, CN400 #14pin) (G board or LD2 board). C506 Voltage. Is the voltage >2.6V? And (only for AC-ADP model) Is the voltage >3.0V? 3.3V_DDCON (IC403) (only for AC-ADP model) Type Detection Circuit problem.
  • Page 20 2023/11/28 11:28:19 (GMT+09:00) 1.2 No Power – μ-Com Failure Previous page Check P_ON_#2 CL417 P-on u-com #pin13 Change IC401 is >3.0V? Check P_ON_HL CL414 P-on u-com #pin18 Change IC401 is >3.0V? Check ORESETB CL416 P-on u-com #pin14 Change IC401 Is the voltage >3.0V? Check X_SYSTEM_RST CL412 P-on u-com #pin20...
  • Page 21 2023/11/28 11:28:19 (GMT+09:00) 1.3 No Power – DDCON/LDO Check item summary Board IC Ref Voltage supply Output ref. Enable pin Enable source Fuse Vcc ref. +12V_MAIN (AC-ADP only) P-on u-com IC401 #pin10 IC402 +5.0V_VBUS/+5V_MAIN C430 R455 P-on u-com IC401 #pin13 F400 C423 +3.3V_STBY (AC-ADP only) IC403 C445...
  • Page 22 2023/11/28 11:28:19 (GMT+09:00) 1.3 No Power – DDCON/LDO DDCONs check on LD2* AC-ADP Model IC Ref Voltage supply START Change Fuse F1000 IC1000 +12V_MAIN Check fuse F1004 F1000 Is fuse OK? (Both side are No power.) (Only single side is 19.5V or 24V.) AC Adaptor Check Check...
  • Page 23 2023/11/28 11:28:19 (GMT+09:00) 1.3 No Power – DDCON/LDO DDCON check IC Ref Voltage supply START IC601 +1.5V_DDR Check IC402 Vcc voltage Check Vcc voltage Check Change D600 C423 C602 D600 Is voltage >12V? Is voltage >3V? Is diode alive? Check +3.3V_STBY. G* board or IC403 Check Vcc voltage Check C602...
  • Page 24 2023/11/28 11:28:19 (GMT+09:00) 1.3 No Power – DDCON/LDO DDCONs check Please refer page 1.3 No Power – DDCON/LDO Check item summary for Ref number. IC Ref Voltage supply IC402 +5.0V_VBUS/+5V_MAIN START +3.3V_STBY (AC-ADP only) IC403 /+3.3V_MAIN Check fuse F4xx F6xx Change Fuse IC405 +1.8V_TU/+1.8V_BE Is fuse OK?
  • Page 25 2023/11/28 11:28:19 (GMT+09:00) 1.3 No Power – DDCON/LDO Please refer page 1.3 No Power – DDCON/LDO LDOs check Check item summary for Ref number. IC Ref Voltage supply IC602 +1.05V_M2_STBY START IC603 +1.05V_M2_A_1 Check +3.3V_DDC_OUT IC605 +1.05V_M2_ST_ET Check Vcc voltage DDCON (IC403) C6xx Is voltage >3V? IC606...
  • Page 26 2023/11/28 11:28:19 (GMT+09:00) 2.0 LED Blinking: 2x (Main Power Error) BCH (AC adapter model) BCH (G-Board model) 2-time blinking 2-time blinking Check “+12V_MAIN” Check “+12V_MAIN” pin 11/13 of CN400 pin 11/13 of CN400 LD board G-Board on B-Board. on B-Board. Voltage > 13.2V ? Voltage >...
  • Page 27 2023/11/28 11:28:19 (GMT+09:00) 2.0 LED Blinking: 2x (Main Power Error) Check Point for BCH BCH (A side) Detail CN400 CN400 pin 11/13 “+12V_MAIN” SYS SET...
  • Page 28 2023/11/28 11:28:19 (GMT+09:00) 2.1 LED Blinking: 3x (DC Alert) Details of 3x LED blinking Error Item Number of STBY LED Description flashing DC_ALERT Main board 5V power rail monitoring Trinity3 AUD_ERR Audio amp error detection Trinity3 Board: BCH 3-time blinking Check “+5.0V_VBUS” at C431 on B-Board.
  • Page 29 2023/11/28 11:28:19 (GMT+09:00) 2.1 LED Blinking: 3x (DC Alert) Check Point for BCH BCH (A side) Detail C431 “+5.0V_VBUS” at C431 SYS SET...
  • Page 30 2023/11/28 11:28:19 (GMT+09:00) 2.2 LED Blinking: 3x (Audio Error) Detail of 3x LED Blinking Error Item Number of STBY LED flashing Description DC_ALERT Main board 5V power rail monitoring AUD_ERR Audio amp error detection LED 3x blinking (Audio Error) Replace (1) BCH-PWB G-PWB or LD2-PWB Finish VDD-GND short ?
  • Page 31 2023/11/28 11:28:19 (GMT+09:00) 2.2 LED Blinking: 3x (Audio Error) BCH-PWB (3) Fuse open check (1) VDD-GND short check Measure impedance of fuse Measure impedance between VDD and GND at capacitor C3244. F3200 5A (12.5V or 19.5V) impedance is <100Ω → NG fuse open → NG (2) +3.3V_Audio short check (4) POWER_AU check Measure impedance between +3.3V and GND at R3242(1).
  • Page 32 2023/11/28 11:28:19 (GMT+09:00) 2.5 LED Blinking: 5x (Panel ID Read Error) LED Blinking: 5x (Panel ID Read Error) 5-times blinking Replace Replace BCH Board Panel (T-con) Symptom Symptom Check Replace recover recover “+12.5V_TCON” G/LD Board G/LD Board at R4447/R4424 on BCH BCH Board Panel (T-Con) Symptom recover...
  • Page 33 2023/11/28 11:28:19 (GMT+09:00) 2.5 LED Blinking: 5x (Panel ID Read Error) Check point for BCH Name Board PWB (A side) Detail R4447/R4424 SYS SET...
  • Page 34 2023/11/28 11:28:19 (GMT+09:00) 2.6 LED Blinking: 6x (Panel Backlight Error) Check point on PWB refer next slide SYS SET...
  • Page 35 2023/11/28 11:28:19 (GMT+09:00) 2.6 LED Blinking: 6x (Panel Backlight Error) LEDVCC1 R3004 CN2000 LEDVCC2 F2005 F2004 SYS SET...
  • Page 36 2023/11/28 11:28:19 (GMT+09:00) 2.7 LED BLINKING: 7x (Temperature Error) 7-time blinking Setting circumstance is OK? Set to another Temperature, location, etc. Ventilation, etc. Change B* Board, Panel and Aging a few hours Symptom improvement Check I2C_C bus Temp sensor communication OK? B* Board NG (check the next page) I2C_C bus dumping or...
  • Page 37 2023/11/28 11:28:19 (GMT+09:00) 2.7 LED BLINKING: 7x (Temperature Error) Check point for BCH BCH board (A side) Detail I2C0_SCL IC1200 (Temperature Sensor) I2C0_SDA SYS SET...
  • Page 38 2023/11/28 11:28:19 (GMT+09:00) 2.8 LED Blinking: 8x (4KPQ/BE Error) LED Blinking: 8x (4KPQ Error) 8-time blinking improvement Replace Retry BCH Board Symptom recover BCH Board SYS SET...
  • Page 39 2023/11/28 11:28:19 (GMT+09:00) 3.0 No Sound No Sound Without LED 3x No sound only Go to Analog RF and Digital RF ? 3.7 No Sound Tuner Select [External Inputs]→ AV receiver is connected [BRAVIA Sync Settings]→ to HDMI in ? [BRAVIA Sync Control]→[off] Go to No sound only HDMI ? 3.8 No Sound HDMI...
  • Page 40 2023/11/28 11:28:19 (GMT+09:00) 3.1 No Sound Audio No Sound Audio Replace BCH-PWB Finish SYS SET...
  • Page 41 2023/11/28 11:28:19 (GMT+09:00) 3.3 No Sound Power Off Check Speaker Impedance Rated Power Off Check NG Value Impedance From 2.2 Power Off Check less than From 3.0 6.4ohm KS/KH 8ohm Measure the Speaker impedance by multi-meter. Replace Speaker NG value of right table? (1) BCH-PWB PVDD-GND short ? (See next page)
  • Page 42 2023/11/28 11:28:19 (GMT+09:00) 3.3 No Sound Power Off Check BCH-PWB C3243 C3244 PVDD-GND short check F3200 Measure impedance between PVDD and GND at capacitor C3244. After a few minutes waiting, if impedance is <100Ω → NG (2) 3.3V short check Measure +3.3V voltage at C3243. If voltage is <...
  • Page 43 2023/11/28 11:28:19 (GMT+09:00) 3.4 No Sound Power On Check Power On Check From 2.2 PVDD (POWER_AU) voltage is 240W AC Adaptor model : 24.0V (4) PVDD check 200W AC Adaptor model : 19.5V PVDD is supplied to Built-in power supply model : 12.5V BCH-PWB for moment before LED 3x blinking ?
  • Page 44 2023/11/28 11:28:19 (GMT+09:00) 3.5 No Sound Audio HP/Audio out No Sound Audio HP/Audio out [Headphone] [Sound]→ Headphone Volume Increase Headphone Volume [Headphone/Audio out] is set to MIN? is set to ? Replace BCH-PWB [Audio Out (Fixed)] Replace BCH-PWB [Audio Out (Variable) ] Volume Increase Volume is set to MIN?
  • Page 45 2023/11/28 11:28:19 (GMT+09:00) 3.7 No Sound Tuner No Sound with normal picture Only RF tuner input? Please refer Audio Check IC1000 (SOC) troubleshooting SYS SET...
  • Page 46 2023/11/28 11:28:19 (GMT+09:00) 3.8 No Sound HDMI HDMI No Sound [NG] No/Abnormal Picture Refer to section Picture Output (HDMI) 4.5 No Picture HDMI [OK] No Abnormal picture Source equipment Plug in "Stereo mini jack cable" from TV to for Check Source have Analog Audio In Audio transmission and Change “HDMI/DVI Audio equipment output (Stereo mini jack) ?
  • Page 47 2023/11/28 11:28:19 (GMT+09:00) 4.0 No Picture BL_ON (L or H): IC401 #7pin or R527 No Picture BL_ON：H Check Smart Core Check Replace Replace LCD Panel Got Any Normal Behavior BL_ON the V by One FFC the main Board (T-CON) Display? (5x Blinking) on the main board Harness BL_ON：L...
  • Page 48 2023/11/28 11:28:19 (GMT+09:00) 4.0 No Picture BL_ON (IC401 #7pin or R527) Check point for BCH Name Board PWB (A side) Detail IC401 Pin#7 R527 IC401 SYS SET...
  • Page 49 2023/11/28 11:28:19 (GMT+09:00) 4.1 Video Analog Signal Path There is no SCART terminal from FY17 AT35:GPIO56 VIDEO_DET SCART Video/Component (Back) (Back) N35:SOY0 SCART_FB/COMP_Y M35:CVBS2P CVBS2P M38:Y0P SCART_SB/COMP_Y MT5832 L38:PB0P SCART_SG/COMP_PB IC1000 L37:PR0P SCART_SR/COMP_PR A16:SD_CLK CR_DET SYS SET...
  • Page 50 2023/11/28 11:28:19 (GMT+09:00) 4.2 : No Picture (Component/Video) No Picture Component Video No Picture No Picture Check J2600 Con Check if input OSD NG (Vpp: 0 V) VIDEO_DET Check J2600 is GREY OUT Check if input OSD NG (Vpp: 0 V) at R2626, Connection, OK if it is highlighted is GREY OUT...
  • Page 51 2023/11/28 11:28:19 (GMT+09:00) 4.2 : No Picture (Component/Video) Condition Actions to be taken Refer to IC troubleshooting for further investigation Muffin [IC1000] Problem J2600 Connector Problem Change Connector J2600 Connectivity Problem Change Part Parts Broken SYS SET...
  • Page 52 2023/11/28 11:28:19 (GMT+09:00) 4.2 : No Picture (Component/Video) Input Skip function (BCH) Input Signal Non-Detect Detect (Typical) (Typical) Component VIDEO_DET 3.3V /Video IC1000 AT35-GPIO56 CR_DET 3.3V IC1000 A16-SD_CLK Component/Video Rear Except AEP SYS SET...
  • Page 53 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner RF input no picture / noisy picture Check RF source cable Change RF cable and and antenna, OK? antenna Check Tuner power line: 3.3V at JL2800 = 3.3V? Please refer DDCON 1.8V at JL2801 = 1.8V? troubleshooting A_RESET value at JL2807 = 3.3V? Check part mounting condition...
  • Page 54 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner From Previous page Digital Satellite Terrestrial/Cable Analog Check Tuner power line 12V at JL2822 = 12V? For TW, NA-ATSC(MX/UC), For AEP_W, JP , PA_T2, JP and LA-ISDB-T CH/HK, and LA-T2(COL) Refer Analog Tuning 12V LNB Voltage Checking Refer Digital Tuning 1 Refer Digital Tuning 2 SYS SET...
  • Page 55 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner BCH (Top View) For Tuner Power Lines 1.8V 3.3V BCH Tuner potion(Top View) For Tuner Power Lines JL2822 = 12V JL2801 = 1.8V JL2800 = 3.3V JL2807 = A_RESET:3.3V BCH Tuner potion(Bottom View) For Tuner Power Lines SYS SET...
  • Page 56 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner BCH (Top View) For Tuner I2C line R2800 R2801 C2803 C2804 R2804 R2805 SYS SET...
  • Page 57 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner FOR 12V LNB Voltage Checking: @ AEP_W and JP +12V_LNB Voltage Checking Check LNB power line Check P_ON_HL signal line MOSFET Q408/Q409 Check fuse F2800 +12V_MAIN at R495 = 12V? R451 (CL414) = 3.3V? broken Change the fuse AC adapter Please refer DDCON...
  • Page 58 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner BCH (Top View) 12V LNB Voltage line R451 CL414 +12V_MAIN R495 Q408 +12V_LNB F2800 Q409 SYS SET...
  • Page 59 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner Notes: - Parts for IFOUT_N line : FB2801, C2807, C2826 FOR ANALOG TUNING: @ All destination except JP - Parts for IFOUT_P line : FB2802, C2808, C2825 - Parts for IFAGC line : R2838, C2827 For LA-ISDB(BR/AR), LA-T2(COL) and TW only : Insert correct signal in correct terminal.
  • Page 60 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner FOR DIGITAL TUNING 1: @ TW, NA-ATSC(MX/UC), JP and LA-ISDB-T. Notes: - Parts for IFOUT_N line : FB2801, C2807, C2826 - Parts for IFOUT_P line : FB2802, C2808, C2825 Digital Tuning 1 - Parts for IFAGC line : R2838, C2827 For TW/LA-ISDB-T : Insert correct signal in correct terminal.
  • Page 61 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner BCH(Top View) IF & IFAGC line R2838 C2827 C2808 C2807 C2825 C2826 FB2802 FB2801 SYS SET...
  • Page 62 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner FOR DIGITAL TUNING 2: @ AEP_W, JP , PA_T2, CH/HK, and LA-T2(COL) Digital Tuning 2 LA-T2(COL) For PA_T2 and For AEP-W For JP CH/HK Confirm ANT or Cable connection Confirm ANT or Satellite connection Confirm ANT or Satellite connection Terrestrial All except JP Digital cable/ Terrestrial...
  • Page 63 2023/11/28 11:28:19 (GMT+09:00) 4.4 No Picture Tuner BCH(Top View) TS1 line R2845 R2847 R2846 R2844 (Under the heatsink) SYS SET...
  • Page 64 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC OFF. - TV HDMI input connected to HDMI source (Player etc.) HDMI No Picture - TV Input Selection: HDMI Go to [OK] Picture recovered Verify with laptop/...
  • Page 65 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC Continue.. OFF. - TV HDMI input connected to HDMI source (Player etc.) - TV Input Selection: HDMI Check impedance of series resistor at SCL&SDA during AC OFF [NG] Impedance...
  • Page 66 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC OFF. - TV HDMI input connected to HDMI source (Player etc.) HDCP - TV Input Selection: HDMI Failure Analysis [OK] Compatible HDCP 1.4/2.2 Verify the HDMI Source [NG] No picture...
  • Page 67 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC +5V Power OFF. Failure Analysis - TV HDMI input connected to HDMI source (Player etc.) - TV Input Selection: HDMI Check impedance of Go to [OK] Impedance ≈...
  • Page 68 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC OFF. - TV HDMI input connected to HDMI source (Player etc.) - TV Input Selection: HDMI Failure Analysis Check impedance of Check I2C GPIO Line ≈...
  • Page 69 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI Checking condition: - TV ON & HDMI Source ON except if the flow mentioned is AC TMDS OFF. Failure Analysis - TV HDMI input connected to HDMI source (Player etc.) ≈ [OK] Impedance RB3613-20 0±5Ω - TV Input Selection: HDMI ≈...
  • Page 70 2023/11/28 11:28:19 (GMT+09:00) 4.5 NO PICTURE HDMI HDMI – No picture RB3612 RB3606 RB3608 RB3611 RB3609 RB3607 RB3605 RB3610 R3667 HDMI 1 R3665 Pin 19 Pin 1 R3664 RB3603 RB3619 RB3620 R3662 R3660 R3661 R3663 R3658 R3659 RB3618 R3601 RB3615 RB3602 RB3613 RB3604 RB3614 R3670...
  • Page 71 2023/11/28 11:28:19 (GMT+09:00) 5.0 Key Switch Buttons Error Check harness connection between Side key buttons error Harness connection issue B-board and switch module Change harness B-board to switch module between B-board to harness issue switch module harness Change switch module Switch module issue Resistor value R1108 : 0 [ohm] R1049 : 47k [ohm]...
  • Page 72 2023/11/28 11:28:19 (GMT+09:00) 5.1 IR Remote Commander Error Center white LED Battery of remote blinks when pushing commander IR remote commander buttons of remote does not respond could be weak. commander at close Change battery. to IR sensor. Check harness connection between Harness connection B-board and issue...
  • Page 73 2023/11/28 11:28:19 (GMT+09:00) 5.2 Light Sensor Error Check harness Setting is “ON” Check UI setting and Backlight level does not connection between Harness connection change when ambient make sure light sensor B-board and Smart issue light changed setting is “ON” Core harness Setting is “OFF”...
  • Page 74 2023/11/28 11:28:19 (GMT+09:00) 6.0 Network Malfunction: Ethernet (Wired) [Network Set-up] >[Wired Set-up] on the TV Connection Results Connection Results Connection Results B board Internet Access Cable Connection Local Access Failed Failed Failed Check Auto Proxy setting Wired Set-up Check cable B board Local router IP address setting DHCP server...
  • Page 75 2023/11/28 11:28:19 (GMT+09:00) 6.0 Network Malfunction: Ethernet (Wired) Check point for BCH Detail Name Board PWB (A side) CHK3 T3400 CHK2 CHK4 L3400 J3400 T3401 CHK1 SYS SET...
  • Page 76 2023/11/28 11:28:19 (GMT+09:00) 6.2 Wireless Network malfunction 1) Internal Wireless Network malfunction Wireless Network on the TV Error message or no scan Is the Wi-Fi radio result appear in the network strength too weak BCH Board setting? or even No signal? Check with another Hardware defect suspected.
  • Page 77 2023/11/28 11:28:19 (GMT+09:00) 6.2 Wireless Network malfunction From previous page Check harness Connect properly connection is OK Loose harness between Wi-Fi and BCH Change harness Check with another Wi-Fi module between BCH board Change BCH board and Wi-Fi If Wi-Fi malfunction happens, ・...
  • Page 78 2023/11/28 11:28:19 (GMT+09:00) 6.3 Bluetooth malfunction Bluetooth Speaker is supported and 3D-glasses is not supported from FY17 Voice Remote doesn’t work Bluetooth Speaker/Headphone/Headset doesn’t work Please refer Check BT antenna Voice Remote manual Home > Settings > Connection is OK Bluetooth Settings Can read Bluetooth Speaker/Headphone/Headset operation manual Near discoverable...
  • Page 79 2023/11/28 11:28:19 (GMT+09:00) 4.2 Connector Diagram 43’ inch SYS SET...
  • Page 80 2023/11/28 11:28:19 (GMT+09:00) 49’ inch SYS SET...
  • Page 81 2023/11/28 11:28:19 (GMT+09:00) Sony EMCS (Malaysia) Sdn. Bhd. English 9-888-744-21 HES-M © 2023.11 SYS SET...
  • Page 82 SERVICE MANUAL (DIASSEMBLY) ORIGINAL MANUAL ISSUE DATE: 2023/11 DISCLAIMER: USE AT OWN RISK. SONY AND ITS AFFILIATES ARE NOT LIABLE FOR 9-888-744-U1 ANY DAMAGE OR INJURY CAUSED TO ANY DIGITAL ELECTRONIC EQUIPMENT, PERSON, OR PROPERTY, WHICH OCCURS DUE TO USE OF THE TOOLS, PARTS,...
  • Page 83 2023/11/28 13:24:09 (GMT+09:00) MODEL LIST MODEL REMOTE DESTINATION RMT-TB400U FW-43BZ35F FW-49BZ35F RMT-TB400U SYS SET...

  • Page 84: Table Of Contents

    SAFETY NOTES 1-1. How to Remove Rear Cover…………………………………………. DIAGRAMS 2-1. Circuit Board Location…………………………………………………… 2-2. Wire Dressing ………………………………………………………………. EXPLODED VIEWS AND PARTS List 3-1. FW-43BZ35F…………………………………………………………………. 3-2. FW-49BZ35F…………………………………………………………………. 3-3. Smart Core……………………………………………………………………. Please refer Service Manual (Troubleshooting) for below information: General Safety Notes ...
  • Page 85 2023/11/28 13:24:09 (GMT+09:00) SECTION 1 DISASSEMBLY AND REMOVAL CAUTION Rear Cover Disassemble Method & Caution Notes 43”/49” Rear Cover disassembly procedure Cover Card disassemble guide (before removing rear cover (RC)) ※EU/JP only Pull out Cover Card  After repairing process complete, please insert back Cover Card SYS SET...
  • Page 86 2023/11/28 13:24:09 (GMT+09:00) Catcher Position of side terminal 3. Pull up at Screw area on Rear Cover and unhook on Front Rear Cover. Unhook both side and terminal area Sli ding down to unlock Screw area 4. You can disassemble Rear Cover by sliding down.
  • Page 87 2023/11/28 13:24:09 (GMT+09:00) Remove screw 43”/49” Step 1) Ensure all screws is removed Step 2) Take out Rear Cover Screw type and quantity to disassemble Rear Cover Reference Remarks 4-167-019-22 SCREW, +PSW M3X8 4-268-126-02 SCREW, ORNAMENTAL M6X12  RC can be disassembled without detach stand SYS SET...
  • Page 88 2023/11/28 13:24:09 (GMT+09:00) Rear Cover disassemble ①Pull Rear Cover bottom area until back of SP. and confirm release catcher ②Slide up Rear Cover (release top hook) ① ② ① Catcher Position Top hook area ② ① SYS SET...
  • Page 89 2023/11/28 13:24:09 (GMT+09:00) Sharp Edge Information 43”/49” Caution point: Please wear glove while removing rear cover to avoid sharp edge at bottom area and hook area as shown in figure below. Sharp edge area Sharp edge area SYS SET...
  • Page 90 2023/11/28 13:24:09 (GMT+09:00) Disassemble Smart Core from Set BACK FRONT VIEW VIEW 1. Remove screw in red box COVER, TOP LIGHT, GUIDE PANEL, ORNAMENT H board CASE, BOTTOM 2. Remove harness SYS SET...
  • Page 91 2023/11/28 13:24:09 (GMT+09:00) Disassemble Cover Top Disassemble Panel Ornament Pull up the cover top by the following order ① ② Pull up Pick up Panel Ornament Disassemble Guide Light Disassemble H board Hold this area and pick up H board Pull out with index finger SYS SET...

  • Page 92: Diagrams

    2023/11/28 13:24:09 (GMT+09:00) SECTION 2 DIAGRAMS 2.1 Circuit Board Location 2-1-1. 43” UNIVERSAL SIL-TU (For CHH only) SWITCH UNIT WLAN/BT MODULE LD2 BOARD BCH BOARD 2-1-2. 49” UNIVERSAL SIL-TU (For CHH only) SWITCH UNIT WLAN/BT MODULE LD2 BOARD BCH BOARD SYS SET...
  • Page 93 2023/11/28 13:24:09 (GMT+09:00) 2-1-7. Smart Core HCA_M2_PONR MOUNT SYS SET...

  • Page 94: Wire Dressing

    2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT INFORMATION Overall View CONNECT 41P INFORMATION 1 Overall View SYS SET...
  • Page 95 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” INFORMATION 2 INFORMATION 3 INFORMATION CONNECT 51P Overall View SYS SET...
  • Page 96 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” TAPE TAPE Overall View Overall View INFORMATION INFORMATION SYS SET...
  • Page 97 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT 30P CONNECT Overall View Overall View WIRE DRESSING Overall View SYS SET...
  • Page 98 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT INFORMATION 1 Overall View INFORMATION 2 INFORMATION 3 SYS SET...
  • Page 99 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT INFORMATION 4 Overall View WIRE DRESSING Overall View SYS SET...
  • Page 100 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” WIRE DRESSING Overall View CONNECT CONNECT Overall View Overall View SYS SET...
  • Page 101 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT Overall View TAPE Overall View SYS SET...
  • Page 102 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” TAPE Overall View TAPE Overall View SYS SET...
  • Page 103 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” TAPE Overall View TAPE Overall View SYS SET...
  • Page 104 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” TAPE Overall View TAPE Overall View SYS SET...
  • Page 105 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” INFORMATION INFORMATION CONNECT Overall View SYS SET...
  • Page 106 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” WIRE DRESSING Overall View INFORMATION 1 INFORMATION 2 SYS SET...
  • Page 107 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT Overall View WIRE DRESSING Overall View SYS SET...
  • Page 108 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” INFORMATION 1 INFORMATION 2 INFORMATION SYS SET...
  • Page 109 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 43” CONNECT INFORMATION Overall View CONNECT 41P INFORMATION 1 Overall View SYS SET...
  • Page 110 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” INFORMATION 2 INFORMATION 3 INFORMATION CONNECT 51P Overall View SYS SET...
  • Page 111 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” TAPE Overall View TAPE Overall View SYS SET...
  • Page 112 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” INFORMATION INFORMATION TAPE TAPE Overall View Overall View SYS SET...
  • Page 113 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” INFORMATION INFORMATION CONNECT 30P CONNECT Overall View Overall View SYS SET...
  • Page 114 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” WIRE DRESSING Overall View CONNECT INFORMATION 1 Overall View SYS SET...
  • Page 115 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” INFORMATION 3 INFORMATION 2 INFORMATION 4 CONNECT Overall View SYS SET...
  • Page 116 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” WIRE DRESSING Overall View WIRE DRESSING Overall View SYS SET...
  • Page 117 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” CONNECT CONNECT Overall View Overall View CONNECT Overall View SYS SET...
  • Page 118 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” TAPE Overall View TAPE Overall View SYS SET...
  • Page 119 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” TAPE Overall View TAPE Overall View SYS SET...
  • Page 120 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” TAPE Overall View TAPE Overall View SYS SET...
  • Page 121 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” TAPE Overall View TAPE Overall View SYS SET...
  • Page 122 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” INFORMATION INFORMATION CONNECT Overall View SYS SET...
  • Page 123 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” WIRE DRESSING Overall View CONNECT Overall View SYS SET...
  • Page 124 2023/11/28 13:24:09 (GMT+09:00) 2.2 Wire Dressing : 49” WIRE DRESSING Overall View CHHB only INFORMATION CHH only INFORMATION SYS SET...

  • Page 125: Exploded Views And Parts List

     Lines that indicate parts are shown in blue in the illustration.  The reference number beside the part description indicates the disassembly sequence.  Remove screws before disassembly. Unplug connectors before disassembly 3-1. FW-43BZ35F Stand Exploded View SYS SET...
  • Page 126 2023/11/28 13:24:09 (GMT+09:00) 3-1. FW-43BZ35F Exploded View REF. FW-43BZ35F PART NO. DESCRIPTION • 4-729-459-02 REAR COVER (SM HRH) A • 1-859-256-11 SP-BOX ASSY,FY18 W30SMALL-A • 1-859-256-21 SP-BOX ASSY,FY18 W30SMALL-B • 4-726-393-61 BRACKET SIDE (HRH) BRACKET, SWITCH (PPK) 4-726-502-01 • • 1-474-647-12 SWITCH UNIT (3M-P) •...
  • Page 127 2023/11/28 13:24:09 (GMT+09:00) 3-1. FW-43BZ35F Screws SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SYS SET...
  • Page 128 2023/11/28 13:24:09 (GMT+09:00) 3-1. FW-43BZ35F Screws SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 4-167-019-22 SCREW, +PSW M3X8 SCREW, ORNAMENTAL M6X12 4-268-126-02 SYS SET...
  • Page 129 2023/11/28 13:24:09 (GMT+09:00) 3-1. FW-43BZ35F Connectors REF. PART NO. DESCRIPTION REMARKS 1-910-806-32 HARNESS ASSY CN1000 (BCH)-CN1(3M-P)-CN001 (HCA)-WIFI/BT-CN1002 (BCH)/CN3201(BCH)-SP(1) 1-910-806-34 CONNECTOR ASSY 30P CN400(BCH)-CN3000(LD2)-J110(T-CON)(1) 1-912-527-11 FLEXIBLE FLAT CABLE 41P CN4400(BCH)-U2(T-CON)(1) 1-912-556-11 FLEXIBLE FLAT CABLE 51P CN4401(BCH)-U1(T-CON)(1) SYS SET...
  • Page 130 2023/11/28 13:24:09 (GMT+09:00) 3-1. FW-43BZ35F Other parts FW-43BZ35F PART NO. DESCRIPTION 1-493-490-21 AC ADAPTOR (120W) • *7-600-040-44 • ADHESIVE (SV380C) 333CC GRY ASSY,FALL LOCK,BELT LL 4-535-064-14 • BAG, SCREW ASSY (TQS) (*include SCREW, 4-588-089-03 • +PSW M4X12 2-580-602-01 (4pcs)) *4-548-743-01 HOLDER, HS WS (MUF) •...

  • Page 131: Fw-49Bz35F

    2023/11/28 13:24:09 (GMT+09:00) SECTION 3 EXPLODED VIEWS AND PARTS LIST Place the TV set facing downwards on a stable, level surface before disassembly and assembly of parts.  (*) Parts are not stocked since they are seldom required for routine service. • •...
  • Page 132 2023/11/28 13:24:09 (GMT+09:00) 3-2. FW-49BZ35F Exploded View FW-49BZ35F REF. PART NO. DESCRIPTION • 4-729-460-01 REAR COVER (M HRH) A • 1-859-256-11 SP-BOX ASSY,FY18 W30SMALL-A 1-859-256-21 • SP-BOX ASSY,FY18 W30SMALL-B • 4-726-393-61 BRACKET SIDE (HRH) 4-726-502-01 • BRACKET, SWITCH (PPK) • 1-474-647-12 SWITCH UNIT (3M-P) •...
  • Page 133 2023/11/28 13:24:09 (GMT+09:00) 3-2. FW-49BZ35F Screws SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SYS SET...
  • Page 134 2023/11/28 13:24:09 (GMT+09:00) 3-2. FW-49BZ35F Screws SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X8 4-167-019-22 SCREW, +PSW M3X6 4-472-518-11 SCREW, +PSW M3X6 4-472-518-11 SCREW, ORNAMENTAL M6X12 4-268-126-02 SYS SET...
  • Page 135 2023/11/28 13:24:09 (GMT+09:00) 3-2. FW-49BZ35F Screws REF NO PART NO. DESCRIPTION REMARKS 1-910-806-35 HARNESS ASSY CN1000(BCH)-CN1(3M-P)-CN001(HCA)-WIFI/BT-CN1002(BCH)/CN3201(BCH)-SP(1) 1-910-806-37 CONNECTOR ASSY 30P CN400(BCH)-CN3000(LD2)-J110(T-CON)(1) 1-912-544-11 FLEXIBLE FLAT CABLE 41P CN4400(BCH)-U2(T-CON)(1) 1-912-546-11 FLEXIBLE FLAT CABLE 51P CN4401(BCH)-U1(T-CON)(1) SYS SET...
  • Page 136 2023/11/28 13:24:09 (GMT+09:00) 3-2. FW-49BZ35F Others part FW-49BZ35F PART NO. DESCRIPTION 1-493-297-12 AC ADAPTOR (160W) • *7-600-040-44 ADHESIVE (SV380C) 333CC GRY • 4-535-064-14 ASSY,FALL LOCK,BELT LL • BAG, SCREW ASSY (TQS) (*include SCREW, 4-588-089-03 • +PSW M4X12 2-580-602-01 (4pcs)) A-2198-898-A HEAT SPREADER (SERVICE)49CHH/B •...

  • Page 137: Smart Core

    2023/11/28 13:24:09 (GMT+09:00) 3-3. Smart core REF.NO. PART NO. DESCRIPTION 4-724-440-01 COVER, TOP (HRH) 4-596-101-21 PANEL, ORNAMENT (FRE) 4-596-102-01 GUIDE, LIGHT (FRE) A-2199-558-A HCA_M2_PONR MOUNT (65” & 75”only) A-2199-646-A HCAL_M2_PONR MOUNT (85” only) 4-596-103-02 CASE, BOTTOM (FRE) SYS SET...
  • Page 138 2023/11/28 13:24:09 (GMT+09:00) English Sony EMCS (Malaysia) Sdn. Bhd. © 2023.11 9-888-744-U1 HES-M SYS SET...

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