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Sony KDL-26S3000 Training Manual

Wax3 direct-view lcd television chassis circuit description and troubleshooting guide
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WAX3 Direct-View LCD Television Chassis
Circuit Description and Troubleshooting Guide
MODELS:
KDL-26S3000
KDL-32S3000
KDL-40S3000
KDL-46S3000
KDL-32XBR4
KDL-32SL130
KDL-40SL130
Training Manual
KDL46S3000
Course : CTV-41

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  Summary of Contents for Sony KDL-26S3000

  • Page 1 Training Manual KDL46S3000 WAX3 Direct-View LCD Television Chassis Circuit Description and Troubleshooting Guide MODELS: KDL-26S3000 KDL-32XBR4 KDL-32S3000 KDL-32SL130 KDL-40S3000 KDL-40SL130 KDL-46S3000 Course : CTV-41...
  • Page 2: Table Of Contents

    Table of Contents Chapter 1 – Features and Circuit Descriptions ....2 BU1 Board Protection ............19 Onboard Regulator Protect ........... 19 Introduction ..............2 Thermal Protect ..............19 Features ................2 Panel Protect ................ 19 New Customer Menu .............. 2 Audio Protect ................
  • Page 3 Table of Contents (Continued) Triage Worksheets ............. 38 Troubleshooting Flowcharts ..........38 Initial Contact Flowchart A ............. 45 No Power Flowchart B ............46 Protect ModeFlowchart C ............. 47 26/32" Inverter Error Flowchart D ......... 48 40/46" Inverter Error Flowchart E .......... 49 No Video Flowchart F ............
  • Page 4: Chapter 1 - Features And Circuit Descriptions

    WAX3 chassis: KDL26S3000 Internet Video Linking KDL32S3000 Yet another first for Sony, the Bravia™ model lineup will include a Digital Media Exchange (DMEX) interface. By attaching an optional interface KDL32SL130 device, known as Bravia Internet Video Link™, customers will have the KDL32XBR4 ability to access internet video entertainment via a broad-band connection.
  • Page 5: Hdmi 1.3 Support

    Chapter 1 - Features and Circuit Descriptions HDMI 1.3 Support HDMI version 1.3 has added several features to enhance picture and audio quality along with bi-directional communication between HDMI equipped devices. The added features that apply to display products are as follows: Speed: Single link bandwidth is increased from 4.9GBS to 10.2GBS Deep Color™: Increases RGB and component sample level from 24-bit...
  • Page 6: Circuit Description

    DC voltage connector from the power supply optical transmitter. This was not true in previous Sony designs in which and are routed to the BU1 board for control and monitoring by the Main the optical out only functioned when a digital tuner signal was received.
  • Page 7 Chapter 1 - Features and Circuit Descriptions VIDEO PROCESS OPTICAL OUT A/V SWITCHING MAIN TV MICRO AUDIO PROCESS/AMP L/R AUDIO OUT HDMI MICRO TUNER ATI MICRO HEADPHONES OUT VIDEO 1 COMPOSITE_Y/C IN VIDEO 3 ATSC/NTSC COMPOSITE IN TUNER FRONT VIDEO 2 INPUTS COMPOSITE IN IC7300...
  • Page 8: 40 And 46-Inch S Line Models

    Chapter 1 - Features and Circuit Descriptions 40 and 46-inch S Line Models 32” XBR and 40D3000 Models In Figure 1-2 it is seen that most of the circuits found in the 26/32” models All of the circuitry in these models are the same as their respective S is the same.
  • Page 9 Chapter 1 - Features and Circuit Descriptions VIDEO PROCESS OPTICAL OUT A/V SWITCHING MAIN TV MICRO AUDIO PROCESS/AMP L/R AUDIO OUT HDMI MICRO ATSC/NTSC TUNER HEADPHONES OUT TUNER ATI MICRO VIDEO 1 COMPOSITE_Y/C IN BACKLIGHT POWER VIDEO 3 IC7300 46" ONLY COMPOSITE IN FRONT VIDEO 2...
  • Page 10 Chapter 1 - Features and Circuit Descriptions VIDEO PROCESS OPTICAL OUT A/V SWITCHING MAIN TV MICRO AUDIO PROCESS/AMP L/R AUDIO OUT HDMI MICRO TUNER HEADPHONES OUT ATI MICRO VIDEO 1 COMPOSITE_Y/C IN ATSC/NTSC TUNER VIDEO 3 COMPOSITE IN FRONT VIDEO 2 INPUTS COMPOSITE IN IC7300...
  • Page 11 Chapter 1 - Features and Circuit Descriptions VIDEO PROCESS OPTICAL OUT A/V SWITCHING MAIN TV MICRO AUDIO PROCESS/AMP L/R AUDIO OUT HDMI MICRO ATSC/NTSC TUNER HEADPHONES OUT TUNER ATI MICRO VIDEO 1 COMPOSITE_Y/C IN VIDEO 3 IC7300 COMPOSITE IN FRONT INPUTS IC4500 LCD PANEL...
  • Page 12: Video Processing

    Chapter 1 - Features and Circuit Descriptions Video Processing Display Information Data (EDID) to provide display capability information to the device connected to the input. In the XBR model an additional EDID An overall block diagram of the video process circuits is illustrated in Figure IC250 (not shown) is located on the U2 board.
  • Page 13 Chapter 1 - Features and Circuit Descriptions DMEX USB IC7300 ATSC/NTSC ATI MICRO TUNER Y/C_COMPOSITE 1 COMPOSITE 3 IC4800 VIDEO SWITCH COMPOSITE 2 IC4500 WXGA 60FPS TO LCD PANEL TRIDENT VIDEO COMPONENT 2 PROCESSOR COMPONENT 1 COMPONENT 3 IC5501 EDID HDMI 1 IC5500 HDMI EQ...
  • Page 14 Chapter 1 - Features and Circuit Descriptions DMEX USB IC7300 ATSC/NTSC ATI MICRO TUNER Y/C_COMPOSITE 1 COMPOSITE 3 IC4800 VIDEO SWITCH IC250 EDID WXGA IC4500 WXGA 60FPS TO LCD 120FPS TRIDENT VIDEO PANEL PROCESSOR COMPONENT 1 COMPONENT 3 IC5501 EDID HDMI 1 IC5500 HDMI EQ...
  • Page 15: Audio Processing

    Chapter 1 - Features and Circuit Descriptions Audio Processing If an ATSC compliant digital channel is received by cable TV (QAM) or terrestrial (8VSB) and a Digital Dolby® audio signal is embedded in the Figure 1-7 illustrates the overall block diagram for the audio processing. content, the optical out will pass this signal for use with a surround-sound All of this is accomplished on the BU1 board.
  • Page 16 Chapter 1 - Features and Circuit Descriptions HDMI 1 IC4500 TRIDENT HDMI 2 ATSC/NTSC IC7300 TUNER ATI MICRO Y/C_COMPOSITE 1 COMPOSITE 3 COMPOSITE 2 COMPONENT 2 IC2009 CLASS D IC2002 AUDIO AMP AUDIO SW COMPONENT 1 OPTICAL OUT COMPONENT 3 L/R AUDIO OUT HEADPHONES OUT HDMI 1 ANALOG...
  • Page 17: Power Supply And Protection

    Chapter 1 - Features and Circuit Descriptions Protection would be no diagnostics indication from the power LED. Several circuits on the WAX3 chassis are utilized to monitor voltage and current conditions. Should a problem develop in any of these monitored circuits the unit will shut down in most cases and blink the power LED red in varying sets of sequences in order indicate what is likely causing the failure.
  • Page 18 Chapter 1 - Features and Circuit Descriptions NTC1 STBY STANDBY 340VDC POWER STBY SUPPLY 3.3V TO CN4002 BOARD PRIMARY REG 12V POWER RY6101 SUPPLY INVERTER Q304 STBY STBY 3.3V LATCH AU GND TO CN4001 Q902 AU 13V BOARD IC305 POWER_ON Q302 Q303 STBY 3.3V...
  • Page 19 Chapter 1 - Features and Circuit Descriptions F6102 STBY STANDBY 343VDC POWER STBY SUPPLY 3.3V D6101 TO CN4002 CN6202 BOARD PRIMARY REG 12V POWER SUPPLY INVERTER Q6202 Q6203 LATCH R6101 STBY STBY 3.3V AU GND TO CN4001 Q6108 AU 13V BOARD PH6103 POWER_ON...
  • Page 20 Chapter 1 - Features and Circuit Descriptions CN6501 PFC OUT TO D1 F6000 6.3A BOARD PRI GND CN6502 STBY STANDBY 390VDC POWER PFC OUT TO D2 STBY SUPPLY BOARD D6000 PRI GND 3.3V CN6004 PRIMARY REG 12V POWER TO D1 BACK_LIGHT SUPPLY BOARD...
  • Page 21: Bu1 Board Protection

    Chapter 1 - Features and Circuit Descriptions BU1 Board Protection running hot. Shutdowns after extended periods would warrant checking the location of the unit for proper ventilation. The BU1 board has several protect monitoring circuits for its own DC voltage regulators. Monitoring of temperature, speaker protection and an Panel Protect inverter failure are also included.
  • Page 22: Communications Errors

    Chapter 1 - Features and Circuit Descriptions Communications Errors Another feature of the WAX 3 chassis is the monitoring of communications between specific devices. Not shown on the previous block diagrams are the following protect events that could occur. Main Micro Communication Error The unit will shut down and the power LED will blink in groups of 10.
  • Page 23 Chapter 1 - Features and Circuit Descriptions DC ALERT 1 Q4017 Q4016 (3X) TRIDENT DDR 2.5V DC ALERT 2 CN4001 Q4001 Q4002 (4X) D1.0V STBY 3.3V FROM POWER_ON (G1D) CN6201 (G1H) AU 13V Q4018 Q4019 CN6202 (G3) D1.8V IC3001 AU GND MAIN MICRO MAIN POWER FAILURE (2x) PANEL...
  • Page 24: Protect Table

    Chapter 1 - Features and Circuit Descriptions Protect Table The various protect alarms are shown in Table 1-1 # OF RED LED BLINKS EVENT POSSIBLE CAUSE NOTES REG 12V FAILURE POWER SUPPLY BOARD PAGE 1 OF DIAGNOSTICS 2.5V FAILURE TO TRIDENT IC BU1 BOARD PAGE 1 OF DIAGNOSTICS D 1.OV FAILURE...
  • Page 25: Chapter 2 - Service And Troubleshooting

    Chapter 2 – Service and Troubleshooting Overview Due to the reduced number of circuit boards and the requirement that repairs be performed at board level, troubleshooting the WAX3 chassis consists of observations of symptoms and customer information more than actual signal tracing and voltage checks. This chapter will assist in this process by providing illustrations of the circuit board locations, troubleshooting flowcharts and various tips on determining what failure may be causing the symptom.
  • Page 26 Chapter 2 - Service and Troubleshooting TCON G1D 26" G1H 32" INVERTER FIGURE 2-1 26” AND 32” S SERIES CIRCUIT BOARD LOCATIONS 26"/32" S SERIES CIRCUIT BOARD LOCATIONS CTV-41...
  • Page 27 Chapter 2 - Service and Troubleshooting TCON INVERTER 32XBR CIRCUIT BOARD LOCATION FIGURE 2-2 32XBR CIRCUIT BOARD LOCATIONS CTV-41...
  • Page 28 Chapter 2 - Service and Troubleshooting TCON BALANCER FIGURE 2-3 40S3000 CIRCUIT BOARD LOCATIONS 40S3000 CIRCUIT BOARD LOCATION CTV-41...
  • Page 29 Chapter 2 - Service and Troubleshooting BALANCER TCON BALANCER FIGURE 2-4 46" CIRCUIT BOARD LOCATION 46S3000 CIRCUIT BOARD LOCATIONS CTV-41...
  • Page 30 Chapter 2 - Service and Troubleshooting TCON BALANCER FIGURE 2-5 46D3000 CIRCUIT BOARD LOCATIONS 40D3000 CIRCUIT BOARD LOCATION CTV-41...
  • Page 31 Chapter 2 - Service and Troubleshooting NOTE DIFFERENCE IN LOCATION OF PIN BOSSES BRACKETS ARE LABELED AS VIEWED FROM FRONT OF UNIT FIGURE 2-6 LEFT AND RIGHT BRACKETS FIGURE 2-6 LEFT AND RIGHT WALL MOUNT BRACKETS CTV-41...
  • Page 32: Protection

    Protection NOTE: Whenever the unit shuts down due to a protect event the remote commander will not function. In previous Sony chassis The protect circuits are described in detail in Chapter 1 of this manual. designs the remote could be used to cycle the unit back on. The unit Table 2-1 lists the protect events that could possibly occur and suggested would shut down again, of course, if the problem still existed.
  • Page 33: Diagnostics History

    Chapter 2 - Service and Troubleshooting Diagnostics History Certain protect events are monitored by the Main Micro on the BU1 board. Those that are monitored are stored into NVM for retrieval. Each time a monitored protect event occurs, a running count is kept and displayed. This feature is very useful in locating the cause of intermittent failures.
  • Page 34: Digital Signal Status

    Chapter 2 - Service and Troubleshooting New Remote Control Commands Digital Signal Status The button sequnces to perform read, write and initialize commands If the customer is experiencing intermittent picture loss, freezing, or tiling, has changed. The table below shows the correct buttons to press for the the signal level of the cable or OTA signal can be checked in the service various tasks.
  • Page 35 Chapter 2 - Service and Troubleshooting QAM DIGITAL RECEPTION ATSC DIGITAL RECEPTION ACCEPTABLE DIGITAL PEAK LEVEL RESETS SIGNAL READINGS WHEN CHANNEL IS CHANGED AGC: 18-54 SNR: ATSC 16-22 QAM 256 MINIMUM 29 64 QAM MINIMUM 22 NTSC ANALOG RECEPTION FIGURE 2-8 SIGNAL LEVEL CHECK FIGURE 2-8 SIGNAL LEVEL CHECK...
  • Page 36: Service Mode

    Saving (Writing) Data the customer requests it or if someone else has changed the values. The traditional method of saving data in Sony televisions was to press TIP: If someone changes the white balance adjustments to where it “MUTE”, followed by “ENTER” on the remote commander. This is now is noticeable the white balance can be restored to a reasonable level performed by pressing “MUTE”...
  • Page 37 Chapter 2 - Service and Troubleshooting FIGURE 2-9 MAIN MICRO SERVICE MODE PAGE FIGURE 2-9 MAIN TV MICRO SERVICE PAGE CTV-41...
  • Page 38: Qm Service Page

    Chapter 2 - Service and Troubleshooting QM Service Page The QM service page is accessed by pressing the “JUMP” button on the remote commander once the service mode has been accessed. This switches service data to the ATI Micro also located on the BU1 board. Although various adjustments are available within this group most of them are related to customer graphics display properties and are not usually in need of adjustment.
  • Page 39 Chapter 2 - Service and Troubleshooting DATA SETTING PAGE 1 BRINGS UP CHANGES QM GRAPHICS GRAPHICS FIGURE 2-10 QM TEST PATTERN GRAPHICS FIGURE 2-10 QM (ATI MICRO) SERVICE GRAPHICS CTV-41...
  • Page 40: Troubleshooting

    Troubleshooting the field on what part is more likely to repair the problem. Always visit the Sony service website to obtain the latest triage worksheet that will be The WAX3 chassis is serviced at board level. Warranty repairs require constantly updated and to view any service bulletins or repair tips to assist mandatory board level repair unless a specific bulletin is issued calling...
  • Page 41 Chapter 2 - Service and Troubleshooting Sony KDL26S3000 Technical Triage Summary Sheet 1. Confirm the symptom from the customer. CHASSIS: WAX3 2. Select that symptom from the chart. 3. Bring all the boards listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board.
  • Page 42 Chapter 2 - Service and Troubleshooting Sony KDL32S3000/SL130 Technical Triage Summary Sheet 1. Confirm the symptom from the customer. CHASSIS: WAX3 2. Select that symptom from the chart. 3. Bring all the boards listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board.
  • Page 43 Chapter 2 - Service and Troubleshooting Sony KDL32XBR4 Technical Triage Summary Sheet 1. Confirm the symptom from the customer. CHASSIS: WAX3 2. Select that symptom from the chart. 3. Bring all the boards listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board.
  • Page 44 Chapter 2 - Service and Troubleshooting Sony KDL40S3000/SL130 Technical Triage Summary Sheet 1. Confirm the symptom from the customer. CHASSIS: WAX3 2. Select that symptom from the chart. 3. Bring all the boards listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board.
  • Page 45 Chapter 2 - Service and Troubleshooting Sony KDL46S3000 Technical Triage Summary Sheet 1. Confirm the symptom from the customer. CHASSIS: WAX3 2. Select that symptom from the chart. 3. Bring all the boards listed for that symptom. 4. Follow the troubleshooting charts in the technical guides to isolate the board.
  • Page 46: Initial Contact Flowchart A

    Chapter 2 - Service and Troubleshooting Initial Contact Flowchart A Start GO TO Is video Video Distortion GO TO distorted? Troubleshooting Does unit Power Supply Flowchart G turn ON? Troubleshooting Flowchart B GO TO Is audio Audio GO TO present ? Troubleshooting Is Timer LED Protection Mode...
  • Page 47: No Power Flowchart B

    Chapter 2 - Service and Troubleshooting No Power Flowchart B Unit Does Not Turn On Timer LED goes Protection to Flashing Red? Go to Flowchart C Video problem Audio Present ? Go to flowchart D Video problem Green Power Remains Green ? Go to flowchart D LED Lit? G1D Board (26")
  • Page 48: Protect Modeflowchart C

    Chapter 2 - Service and Troubleshooting Protect ModeFlowchart C 12VDC G1D Board (26") CN4002 -1 on G1H Board (32") BU1 Board ? G3 Board (40/46") Check for possible Red Standby Immediately ? ventilation problem LED Flashing BU1 Board Temperature BU1 Board 12V Main Speaker BU1 Board...
  • Page 49: 26/32" Inverter Error Flowchart D

    Chapter 2 - Service and Troubleshooting 26/32" Inverter Error Flowchart D Inverter Error 6X (26/32") Backlights turn High at pins 3 Inverter or LCD on before or 5 of CN4003 Panel shutdown? BU1 Board ? BU1 Baord 24VDC CN001 pins 1~5 Inverter Inverter Board ? G1D Board...
  • Page 50: 40/46" Inverter Error Flowchart E

    Chapter 2 - Service and Troubleshooting 40/46" Inverter Error Flowchart E Observe which Inverter Error 46" Screen lit evenly side of screen is Left 40" or 46" Model ? Left or right side ? D2 Board across ? darker before 6X (40/46") shutdown 40"...
  • Page 51: No Video Flowchart F

    Chapter 2 - Service and Troubleshooting No Video Flowchart F Approx 26/32" or High at D1 Board 40/46" 390VDC across 40/46" CN6707 -3 D1 D2 Board pins 1 & 3 CN6600 Model? Board ? See Flowchart E No Picture D1 Board? 26/32"...
  • Page 52: Video Distortion Flowchart G

    Chapter 2 - Service and Troubleshooting Video Distortion Flowchart G Multiple colored Single colored Pixel stuck on lines evenly Done vertical line? or off Distorted spaced? Picture Pixel Failure . Contact Stationary lines LCD Panel Technical Support for or spots assistance LVDS Connectors from...
  • Page 53: Audio Flowchart H

    Chapter 2 - Service and Troubleshooting Audio Flowchart H No or Distorted Audio All Sources ? BU1 Board Check “SAP” is not Analog Tuner ? All Channels? turned on in customer setup menu Front Inputs U1 Board (S Models ) BU1 Board only? U2 Board (XBR Models)
  • Page 54: Service Test Points

    Chapter 2 - Service and Troubleshooting Service Test Points Due to heavy shielding of the BU1 board, voltage and signal test points are virtually inaccessible. Since all video processing is performed on this board it is not necessary to view signals. Video issues are resolved by observation of what appears (if anything) on the LCD screen.
  • Page 55 Chapter 2 - Service and Troubleshooting GROUND GROUND 6.5V AUDIO GROUND GROUND AUDIO 13.5V 9~12 AC_OFF_DET (NORM LOW) POWER ON (ON = 2.8V) GROUND STBY 3.3V FIGURE 2-11 FIGURE 2-11 26" G1D TEST POINTS 26” G1D BOARD TEST POINTS CTV-41...
  • Page 56 Chapter 2 - Service and Troubleshooting CN6201 CN6202 1 – STBY 3.3V 1~4 – REG 24V 2 – GROUND 5~8 – GROUND 3 – POWER ON 9,10 – REG 12V 4 – AC DETECT 11,12 – GROUND 5,6 – AUDIO 13V 7,8 –...
  • Page 57 Chapter 2 - Service and Troubleshooting CN001 (SHOWN WITH SHIELD REMOVED) 6~10 GROUND INV_ERROR (NORM LOW) BACKLIGHT ON (3.3V = ON) DIMMER (1.2~2.8VDC) FIGURE 2-13 FIGURE 2-13 26/32 INVERTER TEST POINTS 26/32” INVERTER TEST POINTS CTV-41...
  • Page 58 Chapter 2 - Service and Troubleshooting CN6004 1 – GROUND 2 – DIMMER 3 – BACKLIGHT ON 4 – INVERTER ERROR CN6501 , CN6502 6 – REG 12V ONE USED IN 40" 7 – BALANCER ERROR BOTH USED IN 46" 1 –...
  • Page 59: Chapter 3 - Disassembly

    Chapter 3 - Disassembly Overview Inverter Board Removal (26 and 32” Models) Replacement of the inverter board begins with removal of the shield as shown in Figure 3-2. Once the shield is removed, the power and control Disassembly of the WAX3 chassis models is relatively straight forward. connector is unplugged and the board pulled out from the lamp socket The rear cover is removed by locating and screws marked by an arrow.
  • Page 60 Chapter 3. Disassembly WALL MOUNT BRACKETS FOR ALL MODELS CAN BE REMOVED FOR ACCESS TO CIRCUIT BOARDS . BOTTOM IS SECURED WITH MACHINE SCREW AND TOP HOOKS ONTO UPPER MOUNTS. OBSERVE LEFT AND RIGHT MARKINGS WHEN RE - INSTALLING WALL MOUNT BRACKETS.
  • Page 61 Chapter 3. Disassembly WARNING! NEVER REMOVE THE SCREWS SECURING THE PLASTIC STRIP HOLDING THE LAMP SOCKETS. DAMAGE TO THE BACKLIGHT TUBES WILL REMOVE OCCUR! CONNECTOR AND PULL BOARD TO THE RIGHT REMOVE SCREWS SECURING SHIELD INVERTER BOARD REMOVAL SHIELD REMOVAL FIGURE 3-2 26/32"...
  • Page 62: 26" Lcd Panel Removal

    Chapter 3. Disassembly 26” LCD Panel Removal Figures 3-3 through 3-7 illustrate the necessary steps to remove the LCD panel. The pedestal base and wall mount brackets are removed first. The wall mount brackets are removed when a 26” or 32” panel is replaced, but not when changing out a 40’...
  • Page 63 Chapter 3. Disassembly STAND SCREWS STAND BRACKET COVER SCREWS FIGURE 3-3 FIGURE 3-3 26/32 PANEL REMOVAL (STEP 1) 26/32” PANEL REMOVAL (STEP 1) CTV41...
  • Page 64 Chapter 3. Disassembly REMOVE CN3008 FROM H4 BOARD LIFT RIGHT SPEAKER OUT AND REST ON POWER SUPPLY LIFT U1 BOARD AND LEFT SPEAKER OUT AND REST ON BU1 BOARD FIGURE 3-4 26/32 LCD PANEL REMOVAL (STEP 2) FIGURE 3-4 26/32” PANEL REMOVAL (STEP 2) CTV41...
  • Page 65 Chapter 3. Disassembly ONCE BU1 BOARD IS LOOSE, REMOVE SCREWS FROM MOVE IT TO THE RIGHT AND INDICATED LOCATIONS UNPLUG THE LVDS CABLE FROM THE PANEL FIGURE 3-5 26/32 LCD PANEL REMOVAL (STEP 3) FIGURE 3-5 26/32” PANEL REMOVAL (STEP 3) CTV41...
  • Page 66 Chapter 3. Disassembly CHECK THAT ALL CABLES ARE FREE AND SET SUB-CHASSIS, SPEAKERS AND BOARDS ASIDE . PANEL CAN NOW BE LIFTED FROM BEZEL ASSEMBLY FIGURE 3-6 FIGURE 3-6 26/32 LCD PANEL REMOVAL (STEP 4) 26/32” PANEL REMOVAL (STEP 4) CTV41...
  • Page 67 Chapter 3. Disassembly TRANSFER BRACKET ASSEMBLY TO REPLACEMENT PANEL FIGURE 3-7 26/32 LCD PANEL REMOVAL (STEP 5) FIGURE 3-7 26/32” PANEL REMOVAL (STEP 5) CTV41...
  • Page 68: 46" Panel Removal

    Chapter 3. Disassembly 46” Panel Removal Removal of a 46” panel is similar to the procedures for a 26’ or 32” panel and also applies to the 40” panel. The wall mount brackets will be left intact because the entire panel and sub-chassis with circuit boards will be lifted from the bezel.
  • Page 69 Chapter 3. Disassembly DO NOT REMOVE THE WALL MOUNT BRACKET SCREWS AT THIS TIME REMOVE THE INDICATED SCREWS TO RELEASE THE PEDESTAL BASE AND REAR PLASTIC COVER FIGURE 3-8 40/46" PANEL REMOVAL (STEP 1) FIGURE 3-8 40/46” PANEL REMOVAL (STEP 1) CTV41...
  • Page 70 Chapter 3. Disassembly UNPLUG CN101 AND REMOVE H1 BOARD REMOVE 2 SCREWS SECURING TOP BRACKET FIGURE 3-9 FIGURE 3-9 40/46" PANEL REMOVAL (STEP 2) 40/46” PANEL REMOVAL (STEP 2) CTV41...
  • Page 71 Chapter 3. Disassembly REMOVE 2 SELF- UNPLUG SPEAKER TAP SCREWS UNPLUG SPEAKER CONNECTORS AND CONNECTORS AND REMOVE SPEAKER REMOVE SPEAKER UNPLUG CN301 FROM H3 BOARD FIGURE 3-10 40/46" PANEL REMOVAL (STEP 3) FIGURE 3-10 40/46” PANEL REMOVAL (STEP 3) CTV41...
  • Page 72 Chapter 3. Disassembly GRASP WALL MOUNT BRACKETS LIFT PANEL FROM BEZEL FIGURE 3-11 40/46" PANEL REMOVAL (STEP 4) FIGURE 3-11 40/46” PANEL REMOVAL (STEP 4) CTV41...
  • Page 73 Chapter 3. Disassembly REMOVE 8 MACHINE SCREWS SECURING WALL MOUNT BRACKETS TO PANEL IMPORTANT! THESE SCREWS ARE VERY SHORT SO AS TO NOT PENETRATE DEEPLY INTO THE PANEL FIGURE 3-12 FIGURE 3-12 40/46" PANEL REMOVAL (STEP 5) 40/46” PANEL REMOVAL (STEP 5) CTV41...
  • Page 74 Chapter 3. Disassembly REMOVE INDICATED SCREWS AND CONNECTORS. LIFT CLOTH TAPE BUT LEAVE ATTACHED TO CABLES . NOTE ROUTING OF WIRING AND PLACEMENT OF MOUNTING TAPE . THIS IS IMPORTANT FOR MINIMIZING EMI. FIGURE 3-13 40/46" PANEL REMOVAL (STEP 6) FIGURE 3-13 40/46”...
  • Page 75 Sony Electronics 2007 Sony Electornics, Inc. SEL Service Company 16530 Vill Esprillo National Training Dept. MZ3215 CTV410507 San Diego, CA 92127 11/12/07 Reproduction in whole or part without written permission is prohibited. All rights reserved...