WAX3 Direct-View LCD Television Chassis Training Manual
Contents
1. 36 Troubleshooting 38 Table of Contents Continued Trage VVOLKSTIGelS dame 38 Troubleshooting 5 38 Initial Contact Flowchart 45 No Power Flowchart B 46 Protect ModeFlowchart C 47 26 32 Inverter Error Flowchart D 48 40 46 Inverter Error Flowchart 49 No Video Flowchart tuis 50 Video Distortion Flowchart G 51 Audio Flowchart TT 52 Serice 53 Chapter 3 Disassembly 58 ase ete ae 58 Inverter Board Removal 26 and 32 Models 58 26 LCD Panel 61 AO Panel Removal rene 67 CTV 41 Chapter 1 Features and Circuit Descriptions Introduction WAX3 chassis is one of several LCD Flat Panel designs introduced for the Bravia 2007 model year It provides for introductory and intermediate level televisions for the customer to choose from The following m2. A 1220 504 0 pememmem ftre9 8 H mver j tror b dab d db LCDPanel LCDPanel 1 802 409 11 Problem POWERJPOWERJPOWER ae jw TEMP AUDIO COMM PANEL AS VIEWD FROM REAR UNIT ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY CTV 41 A3 Initial Contact Flowchart Does unit No Chapter 2 Service and Troubleshooting Yes Is video turn ON Yes Is Timer LED Flashing Red Is video No present CTV 41 distorted No Is audio present Yes Distorted 44 Chapter 2 Service Troubleshooting No Power Flowchart Unit Does Not Turn On Timer LED goes Yes to Flashing Red 4 5 Audio Present No Yes MEN Remains Green No 3 3VDC Yes High gt 2 5 Yes CN4001 3 on BU1 Board CN4001 1 on BU1 Board No CTV 41 45 Chapter 2 Service Troubleshooting Immediately Yes Protect ModeFlowchart C e Red Standby LED Flashing 12VDC CN4002 1 U1 Board 7X Temperature Speaker Protect No Yes Yes 10X or 11X No 12X Vas Yes HFR 32XBR Only No Yes 6 Inverter Fail 13X Y
3. Yes CTV 41 ultiple colore No lines evenly spaced Yes LVDS Connectors from BU1 Board to Panel Yes Chapter 2 Service and Troubleshooting Pixel stuck on or off 50 Chapter 2 Service Troubleshooting Audio Flowchart H No or Distorted Audio All Channels Front Inputs only CTV 41 51 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 The important test points are located on the power supply boards Inverter error test points for the 26 32 models are located on the inverter board Inverter drive and error lines for the 40 46 models be checked on the power supply board Figures 2 11 through 2 14 provide illustrations of the voltage test points of the 3 different power supplies and inverter test points used in the WAX3 chassis 41 Chapter 2 Service and Troubleshooting 52 Chapter 2 Service Troubleshooting GROUND GROUND 6 5V 12V AUDIO GROUND m GROUND AUDIO 13 5V 24 AC OFF DET NORM LOW POWER ON ON 2 8V GROUND STBY 3 3V 4 FIGURE 2 11 26 GID BOARD TEST POINTS CTV 41 53
4. mince 13 Power Supply and Protection 15 CTV 41 BUT Board Protection uses 19 Onboard Regulator Protect 19 Thermal 5 tr ste abes VOR Gau tance 19 cS 19 Audio OLE Cl usd uses aai UE 19 Communications Errors 20 Trident Video Process 20 BH Board Communication Error 20 to Panel S series models or BU1 to BH XBR4 and 03000 series Communication Error 20 Protect TE 22 Chapter 2 Service and Troubleshooting 23 CE 23 Circuit Board Locations 23 EE 30 Diagnostics Geta ete ede ie d esie m 31 Clearing the Diagnostics History 31 Digital eroe 32 New Remote Control Commands 32 SENICE Mode 34 Briatore TN 34 Saving Writing Data 34 Reading Back of Data 34 Factor ROSO T 34 White Balance Adjustments 34 OM Semice Paene uid doeet
5. mew 214042124 cspoard lafe ws JjAt2o54c LL s 184191 woe Ta laf A 1872404 ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY CTV 41 42 Chapter 2 Service Troubleshooting Sony KDL4683000 Technical Triage Summary Sheet 1 Confirm the symptom from the customer 2 Select that symptom from the chart CHASSIS WAX3 3 Bring all the boards listed for that symptom 4 Follow the troubleshooting charts in the technical guides to isolate the board 5 Chart Color Code RED DOT Most likely defective part BLUE Triangle Possible defective part LAST MODIFIED 716 2007 BLACK TEXT Board and Part that may correct the symptom 7 The Troubleshooting Flowchart required to determine the actual defective part is listed for each column in the last row of each table Symptoms Shutdown Power LED No Video missing or blinking red diagnostics sequences Power distorted Reference No Green stationary colored Video 2 No video Power LED No Audio Dead Set lines or Only all Inputs 7 dots 2257 A A A L wswo laf j anara o fe j f f At36597C j j 1
6. ATSC NTSC TUNER HEADPHONES OUT VIDEO 1 COMPOSITE V C IN BACKLIGHT POWER MPOST IC7300 COMPOSITE IN E VIDEO 2 FRONT COMPOSITE IN NPUTS COMPONENT 2 IN U1 4500 TRIDENT VIDEO PROCESSOR WXGA 60FPS LCD PANEL WXGA COMPONENT 1 IN COMPONENT 3 IN IC3001 HDMI 1 IN MAIN TV BACKLIGHT POWER MICRO 40 46 HDMI 2 IN D1 IC2002 AUDIO SW A OA AUDIO DSP USB FOR DMEX AND SOFTWARE UPGRADE AC IN FIGURE 1 2 40 46 5 SERIES OVERALL BLOCK DIAGRAM 41 7 Chapter 1 Features Circuit Descriptions VIDEO 1 COMPOSITE_Y C IN VIDEO 3 COMPOSITE IN VIDEO 2 FRONT COMPOSITE IN INPUTS HDMI 2 IN COMPONENT 1 IN COMPONENT 2 IN HDMI 1 IN HDMI 3 IN PC IN USB FOR DMEX AND SOFTWARE UPGRADE AC IN 41 OPTICAL OUT L R AUDIO OUT HEADPHONES OUT ATSC NTSC TUNER 1 IC7300 1 ATI High Frame Rate LCD PANEL oe l 1 4500 TRIDENT VIDEO PROCESSOR IC3001 MAIN TV MICRO 2002 16 E 1 2009 AUDIO AUDIO DSP FIGURE 1 3 32 4 OVERALL BLOCK DIAGRAM Chapter 1 Features Circuit Descriptions OPTICAL OUT L R AUDIO OUT HEADPHONES OUT ATSC NTSC TUNER 7300 VIDEO 1 COMPOSITE_Y C IN VIDEO
7. Training Manual KDL46S3000 WAX3 Direct View LCD Television Chassis Circuit Description and Troubleshooting Guide MODELS KDL 26S3000 KDL 32XBR4 KDL 3293000 KDL 32SL130 KDL 40S3000 KDL 40SL130 KDL 46S3000 Course CTV 41 Table of Contents Chapter 1 Features and Circuit Descriptions 2 MET III 2 RTT A 2 New Customer Menu nnns 2 Internet Video LINKING 2 FIDMI 1 3 SUpDOIHL oer eic exi o Sn 2 Bravia Theater tie a 9 14075100 access a RA 3 CIFCUIEIDDeSCIDLEOL 4 Overall Block Diagrams 4 26 and 32 inch S Line Models 4 Backignt antenne 4 Power SUD DIY tt ta nl 4 DULL BD OGL Cli idees Ive suis M 4 40 and 46 inch S Line Models 6 E 6 Power Supply e 6 32 XBR 4003000 Models 6 Video 55 tern eos 10 New Trident PFOGOSSOLD a ext eR FO eu etta ero erbe eo aa 10 Video ins a s 10 RUE PR 10 cc TX T 10 Audio PF FOCES SING eoe 13 US 13 Di ital
8. Reading Back of Data When performing adjustments there comes a time where things may appear to be getting out of control or you may be trying an adjustment and forgot what the data value was Pressing 9 followed by 0 will read back the last stored data from NVM Unplugging the unit from AC power will also cause a read back from NVM Factory Reset CTV 41 Chapter 2 Service and Troubleshooting The method for returning the unit to out of box condition has changed Traditionally this was performed by pressing 8 followed by ENTER the remote commander while in the service mode The new procedure is to point the remote at the receiver while the unit is turned on Press the joystick UP and hold it there while turning the unit off with the manual power button The screen should go dark but the green power LED will remain lit The unit will then cycle and should turn back on to channel 3 and ask what language you would like to use White Balance Adjustments Note that the first service item is a white balance adjustment for the green drive The only adjustments that can be performed in this group is white balance and there is a drive and background adjustment for each of the 3 colors White balance adjustments will probably not be required even if the LCD panel or the BU1 board is replaced based on experience with the WAX2 chassis from last year These adjustments will only be required if the customer requests it
9. TO REPLACEMENT PANEL FIGURE 3 7 26 32 PANEL REMOVAL STEP 5 CTV41 65 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 After this is done the sub chassis assemblies and circuit boards will be removed from the LCD panel and transferred to the replacement unit The steps required to do this are shown in Figures 3 8 through 3 13 CTV41 66 Chapter 3 Disassembly MON a je fe M eo e DO REMOVE THE 2 WALL MOUNT BRACKET CE mi SCREWS AT THIS TIME PEDESTAL BASE AND REAR PLASTIC COVER FIGURE 3 8 40 46 PANEL REMOVAL STEP 1 CTV41 67 Chapter 3 Disassembly UNPLUG CN101 AND REMOVE H1 BOARD REMOVE 2 SCREW SECURING TOP BRACKET FIGURE 3 9 40 46 PANEL REMOVAL STEP 2 CTV41 68 CTV41 UNPLUG SPEAKER CONNECTORS AND rer m E HS REMOVE 2 SELF TAP SCREWS UNPLUG CN301 b FROM H3 BOARD FIGURE 3 10 40 46 PANEL REMOVAL STEP 3 Chapter 3 Disassembly UNPLUG SPEAKER CONNECTORS AND REMOVE SPEAKER 69 Chapter 3 Disassembly GRASP WALL MOUNT BR
10. of smaller 3mm self tap and machine screws in the area where the HDMI and A V input jacks are located The only large machine screws for the rear cover will be attached to the wall mount brackets Once the rear cover is removed the wall mount brackets may be removed even while the unit is mounted to its pedestal since they are not part of the panel bracing This is illustrated in Figure 3 1 During the disassembly procedures described in this chapter all references to right and left pertaining to the wall mount brackets will be made as viewing from the front of the unit For demonstration purposes in this manual the disassembly all the way to LCD panel removal will be illustrated using a 32 and 46 model Even though different boards are used with the various sizes removal of the LCD panel is relatively the same Any connectors that are attached to the panel such as LVDS to TCON or circuit boards attached to the bezel IR receiver and function buttons will need to be unplugged The main screws securing the panel are located at the top and bottom of the wall mount brackets along with 2 to 4 additional screws along the bottom edge of the chassis The wall mount brackets will be left intact to provide a gripping area for the removal The panel can then be easily lifted out and transferred to another flat cushioned surface for removal of the circuit boards and additional hardware to transfer to the new panel WARNING When removing hardwar
11. 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 Protect circuits are located on the power supply BU1 board and the back light inverters Power Supply and Protection 3 different power supplies are used in the WAX3 chassis and these are shown in Figures 1 8 1 9 and 1 10 The 26 units use a G1D board the 32 a G1H board and the 40 46 models use the G3 board The G1D and G1H boards are very similar in design with current capacity being their primary difference and the presence of a PFC circuit on the G1H while one is not used on the G1D They both generate 24VDC to supply the inverter circuits on the panel The G3 board uses the PFC circuit to directly drive the D1 and D2 inverter boards for the 40 and 46 panels All 3 power supplies contain over voltage under voltage and over current monitoring The D3 power supply contains additiona circuits to monitor the temperature of the PFC switching transistors and the in rush current limit resistor R6009 as shown in figure 1 10 If either of these circuits is activated the power supply will be turned off The Main Micro located on the BU1 board monitors the regulated 12 volt line generated by all 3 boards If this voltage is no longer generated the Main Micro will flash the power LED in sequences of 2 assuming the standby power supply is still operati
12. required cables unplugged stack the components together and carefully lift them from the panel making sure that no cables or connectors get caught while removing the parts Note any hardware that is still on the original panel and transfer to the replacement as needed CTV41 Chapter 3 Disassembly 60 Chapter 3 Disassembly FIGURE 3 3 26 32 PANEL REMOVAL STEP 1 o 55 CA O i lt gt EO DO 61 CTV41 Chapter 3 Disassembly LI a m 7 4 9 fa 4 4 REMOVE CN3008 FROM BOARD LIFT RIGHT SPEAKER OUT AND REST ON POWER SUPPLY x 9 it B PR RR CERE EX a a 8 1 4 U1 BOARD AND LEFT SPEAKER OUT AND REST BOARD FIGURE 3 4 26 32 PANEL REMOVAL STEP 2 62 CTV41 Chapter 3 Disassembly 2222 ONCE BU1 BOARD IS LOOSE REMOVE SCREWS FROM s s s a a a e 4 MOVE IT TO THE RIGHT AND INDICATED LOCATIONS diim a UNPLUG THE LVDS CABLE ss FROM THE PANEL If E FIGURE 3 5 26 32 PANEL REMOVAL STEP 3 CTV41 63 Chapter 3 Disassembly AND SET SUB CHASSIS SPEAKERS AND BOARDS ASIDE PANEL CAN NOW BE LIFTED FROM BEZEL ASSEMBLY FIGURE 3 6 26 32 PANEL REMOVAL STEP 4 CTV41 64 Chapter 3 Disassembly m TRANSFER BRACKET ASSEMBLY
13. 3 COMPOSITE IN FRONT INPUTS IC4500 TRIDENT VIDEO PROCESSOR LCD PANEL WXGA COMPONENT 1 IN COMPONENT 3 IN IC3001 MAIN TV BACKLIGHT POWER MICRO HDMI3 IN ED PC IN USB FOR DMEX AND SOFTWARE UPGRADE HDMI 1 IN 2002 os AUDIO AMP AUDIO DSP AC IN FIGURE 1 4 40D3000 OVERALL BLOCK DIAGRAM CTV 41 9 Video Processing An overall block diagram of the video process circuits is illustrated in Figure 1 5 for the series models and in Figure 1 6 for the 32 XBR 40 03000 models Processing of the video is the same except for the additional HDMI input available via the U2 board and frame doubling on the BH board New Trident Processor 4500 has been designed to handle many of the tasks once done by separate components It has eliminated a separate CCP processor HDMI Micro DRC and Wega Engine It is capable of handling video resolutions from 480i all the way up to 1080p via the HDMI inputs only All signals exit Trident as 720 6OFPS Video Switching Only composite and Y C signals are switched by IC4800 Component HDMI and PC inputs are routed directly to Trident 4500 where they selected internally Only video input 1 accepts a Y C signal source Digital Tuner If a digital tuner source is selected the signal is sent directly to the ATI Micro 7300 where the signal will be demodulated and decoded to extract the audio and video informat
14. 41 Chapter 1 Features and Circuit Descriptions TO 4002 CN6202 BU1 24 INVERTER TO CN4001 CN6201 G1H 17 41 6 5 TAN 390VDC STANDBY 909 POWER 06000 SUPPLY PRIMARY POWER SUPPLY R6009 DET 6301 STBY SIBY ERAS 12V 3 3V E PH6300 RY6000 12V OVP 1 6300 OVP R6009 OTP FIGURE 1 10 STBY 12V STBY 3 3V AU 13V 12V 6V Q6403 Q6407 PFC Chapter 1 Features and Circuit Descriptions CN6501 PFC OUT TOD CN6502 CN6004 12V D1 3 BACK_LIGHT BOARD INV_ERR BALANCE_ERR CN6203 BALANCE_ERR eee FROM BUT BACKLIGHT ON BOARD 10 CN6202 lt BU1 AU GND BOARD AU 13V POWER_ON STBY 3 3V G3 BOARD PROTECTION 40 AND 46 MODELS 18 Board Protection The BU1 board has several protect monitoring circuits for its own DC voltage regulators Monitoring of temperature speaker protection and an inverter failure are also included A block diagram of these protect circuits is illustrated in Figure 1 11 Onboard Regulator Protect The regulated 2 5 volts for Trident 4500 is monitored If this voltage fails ADC ALERT 1 high will occur pin 163 of the Main Micro 3001 unit will shut down and the power LED will flash in groups of 3 Similarly if the D1 0V
15. 8KHZ PCM DVD players hooked up to the HDMI inputs will output 2 channel PCM regardless of what the HDMI audio output on the DVD player is set to The internal speakers will output DVD audio regardless of what the HDMI audio of the DVD player is set to unlike previous year s models CTV 41 Chapter 1 Features and Circuit Descriptions 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 content the optical out will pass this signal for use with a surround sound amplifier that is compatible with Digital Dolby amp 5 1 standards Table 3 1 offers an overall view of what is output from the optical jack based on input selection AUDIO SOURCE OPTICAL OUTPUT DIGITAL TUNER 5 1 5 1 OR 2CH PCM DVD HDMI 5 1 2CH PCM TABLE 3 1 OPTICAL OUTPUT TRUTH TABLE 13 Chapter 1 Features and Circuit Descriptions HDMI 1 4500 HDMI 2 TRIDENT ATSC NTSC IC 7300 TUNER ATI MICRO Y C COMPOSITE 1 COMPOSITE 3 COMPOSITE 2 KI L COMPONENT 2 IC2009 CLASS D 2002 AUDIO AMP r R AUDIO SW COMPONENT 1 OPTICAL OUT COMPONENT 3 L R AUDIO OUT HEADPHONES OUT PC HDMI 1 ANALOG FIGURE 1 7 AUDIO PROCESS BLOCK DIAGRAM CTV 41 14 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
16. ACKETS LIFT PANEL FROM BEZEL FIGURE 3 11 40 46 PANEL REMOVAL STEP 4 CTV41 70 CTV41 we 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 te a a a a um FIGURE 3 12 40 46 PANEL REMOVAL STEP 5 Chapter 3 Disassembly 71 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 4 WEIST i i FIGURE 3 13 40 46 PANEL REMOVAL STEP 6 CTV41 72 5 ON Y and i Link are trademarks of Sony Electronics SONY 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
17. COMPOSITE IN ATSC NTSC TUNER COMPOSITE IN 92 IC7300 ATI LCD PANEL WXGA INVERTER COMPONENT2IN COMPONENT 1 IN 4500 COMPONENT 3 IN TRIDENT VIDEO PROCESSOR IC3001 HDMI 1 IN MAIN TV U MICRO HDMI2 IN PC IN L IC2002 AUDIO SW 2009 AUDIO DSP AUDIO AMP 4 AND SOFTWARE UPGRADE AC IN FIGURE 1 1 26 32 5 SERIES OVERALL BLOCK DIAGRAM 41 5 40 and 46 inch 5 Line Models In Figure 1 2 it is seen that most of the circuits found the 26 32 models is the same Therefore only the differences will be explained here Backlight Power Separate circuits are used to supply high voltage to the backlight lamps These circuits only generate the high voltage needed Balancer circuit boards are mounted on the panel to distribute the high voltage and monitor the current level to each lamp 40 model uses a single D1 board to generate high voltage of approxiamtely 4 5 to 5KV The 46 however requires the use of 2 high voltage boards due to the longer fluorescent tubes In this case a D1 and D2 board is used to supply voltage to both ends of the fluorescent lamps This is important to remember when troubleshooting a lamp protection shutdown problem If one board fails you will notice that one side of the screen is lighter that the other before the unit shuts down The side that is darker indicates which board is at fault IMPORTANT
18. CTV 41 143 POWER AC DETECT 7 8 AUDIO GROUND a 9 10 UNREG 6V 9 10 REG 12V 11 12 GROUND 7 Cr ate i a 25 a FIGURE 2 12 32 G1H BOARD TEST POINTS Chapter 2 Service and Troubleshooting o4 41 Chapter 2 Service Troubleshooting 3a 2 001 SHOWN WITH SHIEL REMOVED 1 5 24V 6 10 GROUND 11 ERROR NORM LOW 12 BACKLIGHT ON 3 3V DIMMER 1 2 2 8VDC FIGURE 2 13 26 32 INVERTER TEST POINTS 99 Chapter 2 Service Troubleshooting 6004 xj 1 GROUND 2 DIMMER 3 BACKLIGHT ON 4 INVERTER ERROR CN6501 CN6502 6 REG 12V ONE USED IN40 5 BOTH USED IN46 7 BALANCER T 1 380V m 3 GND LU CN6203 5 We u 7117 1 3 GROUND 1 4 4 6 REG 12V E 7 BALANCER ERROR MEE 6 12V 7 BALANCER ERROR 11 DIMMER DER CN6202 1 2 GROUND 3 4 5 6 AUDIO GROUND 7 8 AUDIO 13V 9 AC OFF DET FIGURE 2 14 40 46 G3 BOARD TEST POINTS CTV 41 56 Chapter 3 Disassembly Overview Disassembly of the WAX3 chassis models is relatively straight forward The rear cover is removed by locating and screws marked by an arrow Most of the screws will be 4mm self tap particularly those around the perimeter of the cover with a couple
19. D D SERIES VIDEO PROCESS BLOCK DIAGRAM 41 12 Audio Processing Figure 1 7 illustrates the overall block diagram for the audio processing All of this is accomplished on the board Analog Audio All analog audio sources are switched by the Audio DSP IC2002 The L R audio signals are A D converted within 2002 for processing by DSP and exit as analog L R to IC2009 The analog L R audio is converted to PWM by 2009 and amplified by the class D amplifier within the IC All selected analog sources are output in SPDIF format for the optical out transmitter Analog L R outputs are also provided for the audio output jacks on the rear of the unit and the headphone jack on the front input U1 board On the 32 XBR series the front input board is the U2 board Digital Audio Digital audio sources are available via the HDMI inputs or digital channels received by the tuner HDMI audio is extracted by Trident 4500 and sent to the ATI Micro Digital audio from the tuner is sent directly to ATI The audio information is then sent to Audio DSP 2002 in digital format At this point audio process is the same as analog signals Optical Out The optical output jack at the rear of the unit will pass all selected audio sources except for Super Audio CD SACD or DVD audio sources hooked up to the HDMI inputs for obvious copyright protection reasons All analog sources including that from the NTSC tuner are output as 2 channel 4
20. ERROR 7X CN4002 FROM je SDA Gid H 202 ind CN6203 63 DC ALERT3 PANEL 12V DETECT 5X Q2012 POWER 3 Q2017 SPEAKER PROT DC DETR 8X CN4003 3 3V 4 DIMMER ET DC DETL FROM INVERTER BACKLIGHT 04014 26 32 OR G3 BOARD 40 46 INV_ERR E D BALANCER_ERR E INVERTER 6 BALANCER ERROR 13X FIGURE 1 11 BU1 BOARD PROTECTION CTV 41 21 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 qM 12V FAILURE POWER SUPPLY BOARD PAGE 1 OF DIAGNOSTICS tw FAILURE TOTRIDENTIC 1 BOARD PAGE 1 OF DIAGNOSTICS 1 FAILURE BU1 BOARD PAGE 1 OF DIAGNOSTICS 12V BU1 BOARD BU1 TO PANEL TCON 12V INVERTER 26 32 LISTED AS BACK_LIGHT IN INVERTER ERROR D1 D2 BOARDS 40 46 DIAGNOSTICS PAGE 1 BU1 BOARD S MODELS 7 TEMPERATURE ERROR BH BOARD D XBR MODELS PAGE 2 OF DIAGNOSTICS BU1 BOARD PAGE 2 OF DIAGNOSTICS NOT USED BUT APPEARS IN FAN ERROR NOT USED PAGE 2 OF DIAGNOSTICS ln MICRO COM ERROR BU1 BOARD PAGE 2 OF DIAGNOSTICS E IC FAILURE BU1 BOARD PAGE 2 OF DIAGNOSTICS BU1 BOARD OR BH BOARD 12 BU1 TO BH COM ERROR 32XBR AND 40D3000 ONLY PAGE 2 OF DIAGNOSTICS NOT USED IN 26 32 MODELS 13 BALANCER ERROR LCD PANEL PAGE 1 OF DIAGNOSTICS TABLE 1 1 WAX3 PROTECTION TABLE CTV 41 22 Chapter 2 Service and Troubleshooting Overview Due to
21. Even though the 40 and 46 models both use a D1 board they are not interchangeable The D1 board part numbers are different for the 40 and 46 Power Supply A G3 board is used and uses a Power Factor Control circuit to generate the 390VDC required by the D1 and D2 circuits The on board protect circuits are slightly more sophisticated than the G1D and G1H boards but the end result is to stop the power supply if certain over voltage and current conditions arise These items will be discussed later in this chapter 41 Chapter 1 Features and Circuit Descriptions 32 XBR and 40D3000 Models All of the circuitry in these models are the same as their respective S series models except for the addition of the BH and U2 boards as illustrated in Figures 1 3 and 1 4 The circuitry on the BH board captures the 60HZ frame rate video exiting BU1 board analyzes the difference between adjacent fields and generates additional fields in between to double the frame rate to 120HZ The end result is a dramatic reduction of the smearing or comet tailing that is inherent to LCD displays during fast moving video content The front video input U2 board provides an additional HDMI input not found on the S series models One analog component input was removed to accommodate the additional HDMI so only HDMI and composite video are accepted at these inputs Chapter 1 Features Circuit Descriptions OPTICAL OUT L R AUDIO OUT
22. NCER FIGURE 2 4 4653000 CIRCUIT BOARD LOCATIONS CTV 41 27 Chapter 2 Service and Troubleshooting m m m mpg FE ee a a a s Le a a ote eee B asas ae Perrier eee eee ELLE LL LIL CELL LR Ltt ME BALANCER FIGURE 2 5 4603000 CIRCUIT BOARD LOCATIONS 28 CTV 41 Chapter 2 Service and Troubleshooting NOTE DIFFERENCE IN LOCATION OF PIN BOSSES E LI kl a E a CRETE BRACKETS ARE LABELED AS VIEWED FROM FRONT OF UNIT FIGURE 2 6 LEFT AND RIGHT WALL MOUNT BRACKETS CTV 41 29 Protection The protect circuits are described in detail in Chapter 1 of this manual Table 2 1 lists the protect events that could possibly occur and suggested locations for their causes Troubleshooting flowcharts are also located later in this chapter to assist the technician in isolating the cause of a protect event Although the self diagnostics feature is helpful in troubleshooting a unit they are not 100 reliable and may be caused by more than 1 component Chapter 2 Service and Troubleshooting NOTE Whenever the unit shuts down due to a protect event the remote commander will not function In previous Sony chassis designs the
23. NIMUM 29 64 QAM MINIMUM 22 NTSC ANALOG RECEPTION FIGURE 2 8 SIGNAL LEVEL CHECK CTV 41 33 Service Mode The service mode in the WAX3 chassis is accessed in the traditional way by starting with the unit turned off and pressing DISPLAY 5 VOL and POWER in sequence The TV will power and the initial service graphics shown in Figure 2 9 should appear A white field from an external generator was input to the television to make the picture more printer friendly and to keep the video input graphic from displaying Service adjustment availability is extremely limited in this chassis as compared to other Sony television products Note that the firmware versions of the Trident Digital and Main Micro BE for back end are displayed for viewing to see if the unit is loaded with the latest version Data Handling A couple of procedures have changed with the new software installed in the WAX3 chassis Saving Writing Data The traditional method of saving data in Sonv televisions was to press MUTE followed bv ENTER on the remote commander This is now performed by pressing MUTE and then the O zero key Just remember that the 0 key on the remote is now what used to be the ENTER key If the key entry was successful the word WRITE should appear on the upper right portion of the screen as soon as the mute button is pressed and turn red indicating data writing when the zero key is depressed
24. Sts BRACKETS E aras FIGURE 3 1 CIRCUIT BOARD ACCESS CTV41 58 Chapter 3 Disassembly WARNING NEVER REMOVE THE SCREWS SECURING THE PLASTIC STRIP HOLDING THE LAMP SOCKETS DAMAGE TO THE BACKLIGHT TUBES WILL OCCUR PULL BOARD TO THE RIGHT REMOVE SCREWS SECURING SHIELD SHIELD REMOVAL INVERTER BOARD REMOVAL FIGURE 3 1 CIRCUIT BOARD ACCESS CTV41 59 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 or 46 panel since they will be needed grasp and lift the heavier panel Always remove the speakers and set them on the sub chassis assembly The magnets on the speakers will stick to the sub chassis or panel when they are lifted from the bezel and could cause damage to the panel or speakers Note the location of all wire harnesses and any tape securing them The routing of the wires into their original location is critical to minimize EMI Use caution when unplugging connectors Most have locking mechanism that must be released before unseating them This is especially true for the LVDS connector between the BU1 board and the LCD panel Once the sub chassis assemblies have been released by removing the indicated screws and all
25. ation is shown in Figure 2 6 CTV 41 Chapter 2 Service and Troubleshooting N utut ES a a ss a a E gt ft a pee bis ey B b BR a a P ee e E 1 E 4 TET 7 i P s g i H F as E a 1 jed i 1 INVERTER LEM te TE 7 2 ak FIGURE 2 1 26 AND 32 SERIES CIRCUIT BOARD LOCATIONS 24 CTV 41 41 Chapter 2 Service and Troubleshooting a i z s5383328388T3R R IITIITIIIIIIILII 1 a asbhb hhhyosptuNsSSEEN i jJ SPREE Roe os a ff B i A A mai 8 wg bom FI 2 2 m uu ul m BL i 2 INVERTER EE FIGURE 2 2 32XBR CIRCUIT BOARD LOCATIONS 25 Chapter 2 Service Troubleshooting Bu EN EOM EH ax FIGURE 2 3 4053000 CIRCUIT BOARD LOCATIONS CTV 41 26 Chapter 2 Service Troubleshooting penn LANCER T BALA
26. can be displayed on the screen with the initial color bar pattern shown in Figure 2 10 There are 20 sets of patterns for the 4 resolutions They are as follows 1 20 1080 21 40 4801 41 60 480 61 80 720 Since these patterns generated by the ATI Micro which is located the BU1 board along with the video process circuits they do not provide much assistance in isolating video problems as past chassis designs in which the ATI Micro was located on a separate board They do however provide a clean stable video source to assist in closer examination of the screen display This is especially useful when trying to determine if a distortion problem is being caused by the LCD panel 41 Chapter 2 Service and Troubleshooting 36 Chapter 2 Service and Troubleshooting DATA SETTING CHANGES GRAPHICS PAGE 1 BRINGS UP QM GRAPHICS FIGURE 2 10 QM ATI MICRO SERVICE GRAPHICS CTV 41 3 Troubleshooting The WAX3 chassis is serviced at board level Warranty repairs require mandatory board level repair unless a specific bulletin is issued calling for the replacement of an individual component Because of this troubleshooting flowcharts will be utilized in this manual to assist in diagnosing and repairing the unit The preferred method is to triage the unit by listening to the customer s description of the symptoms when service request is made This can be done by technical or non technical Staff by util
27. ds for the display to appear once the backlights have turned on This feature is illustrated in Figure 2 7 Note also that due to the large number of diagnostic events monitored there are 2 pages of lists Toggling between the pages is performed using the 1 and 4 keys on the remote Clearing the Diagnostics History Once the diagnostics page has been viewed for a history of protect events and there are any present the failure counts must be cleared to be useful at a later time This is accomplished by pressing the 8 followed by the 0 key on the remote not 8 ENTER as in past models CTV 41 A A Et e 002 003 004 005 006 013 OOF 00 27 011 010 2007 012 Chapter 2 Service and Troubleshooting PAGE OO OO OO 00 OO BALANCE 00 5 00006 00075 USE 1 AND KEY ON REMOTE COMMANDER TO TOGGLE BETWEEN PAGES SP_PROT TEMP TRIDENT_IC DIGITAL OVERHEAT ERROR P F JUL FIGURE 2 7 DIAGNSTICS HISTORY PAGE 31 New Remote Control Commands The button sequnces to perform read write and initialize commands has changed The table below shows the correct buttons to press for the various tasks OPERATION COMMAND BUTTONS SERVICE PAGE DISPLAY E MUTE 0 CUSTOMER l SETTINGS RESET On READ NVM DATA MUTE CTV 41 Chapter 2 Se
28. e from the old panel to the new panel note any machine screws large 4mm size that are shorter than the ones used for the rear cover These screws will mount hardware directly to the rear of the panel and are short so as to not penetrate deep into the panel and damage the polarizer or fluorescent backlight tubes CTV41 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 connector is unplugged and the board pulled out from the lamp socket connectors WARNING Do not under any circumstances remove the screws securing the plastic strip holding the lamp socket connectors This is a new design where the ends of the fluorescent backlight tubes are seated into the connectors If this plastic strip is moved there is a high likelihood that one or more of the backlights will be damaged requiring replacement of the LCD panel This warning also applies to the 40 and 46 models that use a balancer board mounted to the panel 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 gt 4 ONTO UPPER MOUNTS 207 iss gt OBSERVE LEFT AND RIGHT nazz MARKINGS WHEN Beet INSTALLING WALL MOUNT tte
29. ed Reference Cr er Stationary Power LED colored Video 2 No video Dead Set lines or Only all Inputs Part 7 dots euo Aver Ir EIE IR fume nen wem im 1 Le wm e w t omm ja 1 Lp a eee Problem POWERIPOWER POWER TEMP AUDIO COMM ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY CTV 41 41 Chapter 2 Service Troubleshooting Sony KDL4083000 SL130 Technical Triage Summary Sheet 1 Confirm the symptom from the customer 2 Select that symptom from the chart CHASSIS WAX3 3 Bring all the boards listed for that symptom 4 Follow the troubleshooting charts in the technical guides to isolate the board 5 Chart Color Code RED DOT Most likely defective part BLUE Triangle Possible defective part LAST UPDATED 7 16 07 BLACK TEXT Board and Part that may correct the symptom 7 The Troubleshooting Flowchart required to determine the actual defective part is listed for each column in the last row of each table Symptoms Shutdown Power LED No Video missing or blinking red diagnostics sequences _ Power distorted MARA Dead Set ed Only Inputs gugom jejeje 4 a a asrasa
30. ers will have the ability to access internet video entertainment via a broad band connection Local news weather and traffic along with access to selected digital media streaming can be viewed on the television independent of a computer A special DMEX USB port on the rear of the television will allow bi directional communication with the Bravia Internet Video Link device via the Xross Media Bar feature included in the television Sony will partner with selected channels on the internet and these will automatically appear on the screen for the customer to select N 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 to 30 36 and 48 bit Removes previous color space limitations to allow for the reproduction of every color perceivable by the human eye CEC Short for Consumer Electronics Control Allows communication among HDMI devices for control Uses the industry standard A V link protocol For example Equipment can be set up so that when a DVD disc is inserted into a player the television will turn on with the proper input setting along with the audio equipment turning on and being set for the proper
31. es Balancer CTV 41 46 26 32 Inverter Error Flowchart D CTV 41 Chapter 2 Service and Troubleshooting Inverter Error 6X 26 32 Backlights turn on before shutdown High at pins 3 or 5 of CN4003 BU1 Board 24VDC 001 pins 1 5 nverter Board 47 Chapter 2 Service Troubleshooting 40 46 Inverter Error Flowchart Observe which side of screen is darker before shutdown Inverter Error 6X 40 46 Screen lit evenly across 40 or 46 Model Left or right side Backlights turn on before shutdown 40 or 46 Model 390VDC across pins 1 amp 3 CN6600 D1 Board Unplug CN6707 from D1 Board CN6707 pin D1 Board high CN6707 pin 3 or 7 still high CN6707 pin 3 or 7 high CTV 41 48 Chapter 2 Service Troubleshooting No Video Flowchart Approx 390VDC across ins 1 amp 3 CN6600 D1 Board High at CN6707 3 D1 Board 26 32 or 40 46 Model 40 46 Yes No Picture Backlights on No picture all input sources 2 picture fron inputs CTV 41 49 Video Distortion Flowchart Distorted Picture tationary lines or spots All input sources Single colored vertical line
32. he main switching supply Standby 3 3 volts is also generated to power the Main Micro on the BU1 board and other circuits that are required to run constantly such as the remote IR receiver The main switching regulator provides the majority of the voltages used within the unit Further details of the power supplies will be discussed later in this chapter BU1 Board This board has been redesigned to take on virtually all of the circuits that were found on 3 boards in last year s chassis designs The tuner and ATI Micro were on separate boards in previous designs but have now been integrated on the same board with the video process circuits Other than the front video inputs applied to the U1 board all analog and HDMI input connectors are part of the BU1 board The Main TV Micro resides on this board and is responsible for virtually all of the operational functions of the unit Audio switching digital signal processing and amplification are also located here The audio exits the BU1 board to drive the speakers optical output L R analog out and headphones Another important feature of the audio circuits is that all audio sources selected will be output from the optical transmitter This was not true in previous Sony designs in which the optical out only functioned when a digital tuner signal was received Chapter 1 Features Circuit Descriptions OPTICAL OUT L R AUDIO OUT HEADPHONES OUT VIDEO 1 COMPOSITE_YIC IN VIDEO 3
33. input and audio format The WAX3 model lineup only supports the CEC feature of HDMI 1 3 Bravia Theater Sync A feature incorporated within the television to utilize the CEC feature of HDMI 1 3 1080p Input Unit can receive 1080p source content via the HDMI inputs only The 1080p signal is scaled to the WXGA panel resolution NOTE Only the 32 XBR and D3000 model will support 24 frame sources The S series models support 30 frame only CTV 41 Chapter 1 Features and Circuit Descriptions Circuit Description Various differences in circuitry occur in the WAX3 chassis line based on panel size and display features Virtually all video processing is the same among the different designs and centers around the BU1 board From this point it becomes a matter of what LCD panel size is used HDMI versus analog front video inputs and the design of the power supply dedicated to that model The circuit descriptions to follow will differentiate between the models based primarily on LCD panel size since this will determine what type of power supply and backlight inverter boards will be used The KDL32XBR4 and KDL40D3000 are the only models in this chassis line that has an upgrade in video features including a third HDMI input and High Frame Rate circuits and panel This will be described in a separate block diagram Overall Block Diagrams 26 and 32 inch S Line Models In Figure 1 1 the overall block diagram of the circuit layout util
34. ion The video digital stream is then sent to Trident video processor IC4500 and audio data is input to Audio DSP 2002 not shown HDMI Inputs Note the lack of an HDMI Microprocessor This is now integrated within the Trident processor 4500 HDMI sources pass through HDMI IC550 for impedance matching and into IC4500 for processing of the audio and video information IC5501 IC5502 contain the Enhanced 41 Chapter 1 Features and Circuit Descriptions Display Information Data EDID to provide display capability information to the device connected to the input In the XBR model an additional EDID 250 not shown is located on the U2 board 10 Chapter 1 Features and Circuit Descriptions DMEX USB IC7300 ATI MICRO ATSC NTSC TUNER IC4800 VIDEO SWITCH COMPOSITE 1 COMPOSITE 3 COMPOSITE 2 TOLCD PANEL TRIDENT VIDEO COMPONENT 2 PROCESSOR COMPONENT 1 COMPONENT 3 PC 5501 EDID HDMI 1 5500 HDMI HDMI 2 5503 EDID FIGURE 1 5 S SERIES VIDEO PROCESS BLOCK DIAGRAM 41 11 Chapter 1 Features Circuit Descriptions DMEX USB IC 7300 TUNER IC4800 VIDEO SWITCH Y C COMPOSITE 1 COMPOSITE 3 WXGA 120FPS TOLCD PANEL 4500 TRIDENT VIDEO PROCESSOR COMPONENT 1 COMPONENT 3 g 5501 EDID HDMI 1 5500 HDMI HDMI 3 5503 EDID FIGURE 1 6 XBR AN
35. is updated with correct part numbers and suggested parts as of the writing of this manual but may be updated as part numbers change due to production changes in the product and the suggestion list may change as feedback is received from CTV 41 Chapter 2 Service and 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 constantly updated and to view any service bulletins or repair tips to assist in the repair Troubleshooting Flowcharts The flowcharts in the remainder of this chapter are designed for the technician who is servicing the unit in the field They are particularly useful when more than one part is brought to the location Visual checks use of internal graphics patterns and voltage checks will assist in determining which part is likely to complete the repair As with the triage worksheet please check the Sony service website to see if the flowcharts have been updated with new information to assist in the diagnosis of the unit The triage worksheets on the website will always have the latest flowcharts included 38 Chapter 2 Service and Troubleshooting Sony KDL26S3000 Technical Triage Summary Sheet 1 Confirm the symptom from the customer 2 Select that symptom from the chart CHASSIS WAX3 3 Bring all the boards listed for that symptom 4 Follow the troubleshooting charts in the technical guides to iso
36. ized in the KDL26A3000 and KDL32S3000 is shown A brief description for each of the major circuit boards will be given Backlight Inverter These smaller panels use a single inverter balancer assembly that is part of the LCD panel in order to provide ballast control for the fluorescent backlights 24VDC is provided by the power supply G1D for the 26 or for the 32 This 24 volt source powers the individual inverters to generate the high voltage 4 5KV to 5KV necessary to light the fluorescent backlight lamps Additional lines for on off control and inverter failure feedback are on the same DC voltage connector from the power supply and are routed to the BU1 board for control and monitoring by the Main Micro The inverter board also contains circuits to monitor the current draw of CTV 41 Chapter 1 Features and Circuit Descriptions each individual backlight lamp If a lamp were to fail or weaken with age or if one or more of the inverters were to fail an error command will be detected by the Main Micro on the board and shut the unit down and blink the front power LED in groups of 6 Power Supply 2 power supplies reside on the G board The 23 model power supplies are designated G1D whereas the 32 is G1H Both supplies are relatively the same aside from current capacity and layout of their protect circuits A standby supply runs constantly whenever AC power is applied to provide 12VDC for the main relay and power for t
37. izing the triage worksheet included in this section Once the correct part or parts is identified during the triage procedure the technician can use the flowcharts in the field to perform further diagnosis of the unit This is especially useful when more than one part is suspected as being the cause The flowcharts are designed to use visual checks the use of internal graphic patterns and in the worst case the use of a DVM to check voltages or resistance levels These quick checks are much quicker than trying to repair the unit using the shotgun method Triage Worksheets The triage worksheets in the following pages are an example of a useful tool to aid in determining what part s may be needed to be brought to the repair site to complete a repair Based on a description of the symptom by the customer one can simply go down the column that best fits the description of the failure and locate what is needed for the repair The part that is most likely to repair the failure is marked with a dot In some cases there may be more than one part with a dot In this situation it is highly recommended to bring both parts to the repair location Parts marked with a triangle may also be the cause and the decision on whether to bring them will need to be determined based on various situations such as distance to the repair site and the size of the unit can it easily be brought to the shop if needed Bear in mind that the worksheet illustrated
38. late the board 5 Chart Color Code RED DOT Most likely defective part BLUE Triangle Possible defective part LAST UPDATED 7 16 07 BLACK TEXT Board and Part that may correct the symptom 7 The Troubleshooting Flowchart required to determine the actual defective part is listed for each column in the last row of each table Symptoms Shutdown Power LED blinking red diagnostics sequences Video missing or distorted 222222 CN Tu Dead Set Only Inputs a e e e a a assa ems mron 220 5046 merer w con Los CABLE 1118341551 tjl f al 1 802 36841 o o MN ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY CTV 41 39 Chapter 2 Service Troubleshooting Sony KDL3283000 SL130 Technical Triage Summary Sheet 1 Confirm the symptom from the customer 2 Select that symptom from the chart CHASSIS WAX3 3 Bring all the boards listed for that symptom 4 Follow the troubleshooting charts in the technical guides to isolate the board 5 Chart Color Code RED DOT Most likely defective part BLUE Triangle Possible defective part LAST UPDATED 7 19 07 BLACK TEXT Board and Part that may correct the symptom 7 The Troubleshooting Flowchart requi
39. ng In figure 1 9 note the PFC detection line consisting of PH6301 and Q6403 which is unique to the 40 46 models If the PFC circuit were to cease operating the DC voltage which is normally around 390 volts would drop to less than half rectified AC only This would put a strain on the D1 and D2 boards since they would attempt to keep the lamps lit but would require extra current due to the drastic voltage drop In this event Q6403 will pull the control signal which is normally high low turning off the inverter s The symptom would be a unit that has no backlights operating but there CTV 41 15 41 RY6101 Chapter 1 Features and Circuit Descriptions STBY STANDBY 12 SA POWER SUPPLY AR AU 4002 13V CN2 BU1 PRIMARY 12V 3 12 SUPPLY 6V DAV INVERTER 12V STBY STBY Q304 OVP LATCH zd TO 4001 av EP eS lt lt lt BOARD CN3 PFC G1D FIGURE 1 8 G1D BOARD PROTECTION 26 MODELS 16 6102 4A Nul IN LY AC D6101 IN 343VDC STANDBY PFC POWER SUPPLY PRIMARY POWER SUPPLY STBY STBY 12V 3 3V a RY6101 Q6108 4 4 Q6107 PH6103 PFC OCP IC6103 PFC OVP P H6300 STBY 12V STBY 3 3V AU 13V 12V 6V 24V i Q6201 ON 3 3V PFC FIGURE 1 9 G1H BOARD PROTECTION 32 MODELS CTV
40. ns running hot Shutdowns after extended periods would warrant checking the location of the unit for proper ventilation Panel Protect If the high voltage generated by the inverter were to fail or if abnormal current conditions are detected on the balancer circuits a high would be applied on pin 81 of the Main Micro The unit will shut down and blink the power LED in groups of 6 Audio Protect If any DC is detected on the left or right speaker channels the unit will shut down and blink the power LED in groups of 8 This symptom is usually caused by a failed audio amp and would require the replacement of the BUT board Balancer Protect Along with a Panel Protect line a Balancer Error line is connected to pin 81 of the Main Micro Working in conjunction with panel protection both lines connect to a voltage divider The voltage at pin 81 is normally 3 3 volts If an inverter error is detected the line normally low will go high and the inverter transistor will pull the voltage down to zero A balancer error would complete the divider network and pull the voltage down to about one half 1 8 volts This is how 3001 is able to tell which type of error has occured NOTE The 26 and 32 models do not have a balancer error line from the inverter board Only the 40 and 46 models have this feature 19 Communications Errors Another feature of the WAX 3 chassis is the monitoring of communications between specific devices Not
41. odels utilize the WAX3 chassis 2653000 3253000 3251130 KDL32XBR4 KDL40S3000 KDL40SL130 KDL40D3000 KDL46S3000 Features LCD Panels All LCD panel sizes will be 1280 X 768 WXGA resolution 32 and up utilizes the Wide Color Gamut Cold Cathode Fluorescent WCG CCFL backlighting for increased color uniformity and accurate grey scales The 26 model uses conventional fluorescent lights The 26 and 32 inch models with the exception of the 32XBR4 utilize 8 bit LCD panels The 40 and 46 inch panels receive 10 bit RGB information All panel sizes except the 32 XBR are 60FPS refresh rate Exclusive to the KDL32XBR4 KDL40D3000 is Sonvs introduction of Motionflow An additional circuit is included to double the 60HZ frame resolution from the video process circuits to 120HZ for clear picture reproduction during rapid moving scenes In this manual this feature will be referred to as High Frame Rate CTV 41 New Customer Menu The customer Graphics User Interface GUI has been improved to make navigation of the setup features easier Icons similar to those found on the PSP2 are used extensively It is known as XMedia Bar pronounced cross media bar or XMB for short Internet Video Linking Yet another first for Sony the Bravia model lineup will include a Digital Media Exchange DMEX interface By attaching an optional interface device known as Bravia Internet Video Link custom
42. or D1 8V sources generated on the BU1 board fails a high will be placed on pin 153 and the unit will shut down generating groups of 4 blinks The regulated 12V is the only outside voltage monitored It sources from the power supply and will keep a specified high on pin 82 of the Main Micro If the voltage fails or falls below this specified limit the unit will shut down and blink the power LED in groups of 2 Note that this 12V line is also the source for the Panel 12V which is switched by the main micro This voltage is also monitored by Main Micro at pin 154 DC ALERT 3 If the 12V from the power supply is OK but failed on the Panel 12V line the unit will shut down and blink the power LED in groups of 5 Thermal Protect 3007 is a digital thermometer that can be programmed to send data to the Main Micro when a specified temperature level is reached The purpose of the thermal sensing is to monitor the unit for excessive temperature within the unit during operation If the temperature rises above the specified threshold the unit will shut down and display groups of 6 blinks from the power LED Note 3007 is constantly polled by the Main Micro If the were to fail or the data line on the to open the unit would shut down within approximately 10 seconds It is important to beware of this If a unit shuts down immediately it can be safely assumed that the television is not CIV 41 Chapter 1 Features and Circuit Descriptio
43. or if someone else has changed the values TIP If someone changes the white balance adjustments to where it is noticeable the white balance can be restored to a reasonable level assuming the backlights have not aged to the point of significant color shift by setting the data values for the red green and blue drive to 100 and the background for each color to 200 34 SERVICE 001 COLOR ADJ 002 G DKV 20100 DIGITAL PROGRAM HO7 00 79T DE DATA 0000011 PROGRAM 620 426 TP1 014 BOOT TBO S OD FIGURE 2 9 MAIN TV MICRO SERVICE PAGE CTV 41 35 QM Service 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 BUT 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 What is important is the availability of test pattern graphics that can be useful in troubleshooting video issues especially those that involve distortion in the video signal Once in the QM service group the initial page will be labeled INFO Use the 1 key to scroll to the next page labeled TPNS The data value default is zero By changing the data value with the 3 button various test patterns in 4 different resolutions
44. red to determine the actual defective part is listed for each column in the last row of each table Symptoms Shutdown Power LED No blinking red diagnostics sequences Power Video missing or distorted Reference 1 474 052 11 Stationary colored Video 2 No video No Audio lines or Only all Inputs A 1220 504 C pe j Lo te o o 1799260 7 1257 244 _ mowwoscamE corae _ Flowchart Reference pe C C EE MM INV TEMP AUDIO COMM comm M Comeon la 1 834 157 11 1 802 380 11 ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY CTV 41 40 Chapter 2 Service and Troubleshooting Sony KDL32XBR4 Technical Triage Summary Sheet 1 Confirm the symptom from the customer 2 Select that symptom from the chart CHASSIS WAX3 3 Bring all the boards listed for that symptom 4 Follow the troubleshooting charts in the technical guides to isolate the board 5 Chart Color Code RED DOT Most likely defective part BLUE Triangle Possible defective part LAST UPDATED 7 16 07 BLACK TEXT Board and Part that may correct the symptom 7 The Troubleshooting Flowchart required to determine the actual defective part is listed for each column in the last row of each table Symptoms Shutdown Power LED No blinking red diagnostics sequences Power Video missing or distort
45. remote could be used to cycle the unit back on The unit would shut down again of course if the problem still existed In the WAX3 chassis the power must be cycled by using the manual power button OF RED LED BLINKS EVENT POSSIBLE CAUSE NOTES REG 12V FAILURE POWER SUPPLY BOARD 2 5V FAILURE TO TRIDENT IC BU1 BOARD PAGE 1 OF DIAGNOSTICS D 1 0V FAILURE BU1 BOARD INVERTER 26 32 LISTED AS BACK_LIGHT IN INVERTER ERROR 01 D2 BOARDS 40 46 DIAGNOSTICS PAGE 1 BU1 BOARD S MODELS TEMPERATURE ERROR BH BOARD D XBR MODELS 2 OF DIAGNOSTICS NOT USED BUT APPEARS IN FAN ERROR NOT USED PAGE 2 OF DIAGNOSTICS MAIN MICRO COM ERROR BU1 BOARD PAGE 2 OF DIAGNOSTICS TRIDENT FAILURE BUT BOARD BU1 BOARD OR BH BUT TO BH COM ERROR BOARD PAGE 2 OF DIAGNOSTICS NOT USED IN 26 32 MODELS BALANCER ERROR LCD PANEL PAGE 1 OF DIAGNOSTICS TABLE 2 2 SELF DIAGNOSTICS TABLE CTV 41 30 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 The diagnostics history page is retrieved by turning the unit off and pressing the following buttons on the remote commander in sequence DISPLAY 5 VOL and POWER The unit will turn on and you may have to wait several secon
46. rvice and Troubleshooting Digital Signal Status If the customer is experiencing intermittent picture loss freezing or tiling the signal level of the cable or OTA signal can be checked in the service mode or within the customer menu The customer menu is easier to access and is specific to those signal levels with pleasing graphics so it is suggested to use this feature as opposed to the pages located within the QM service graphics Figure 2 8 illustrates this feature Signal readings can only be obtained for digital sources at the antenna inputs Analog signals will only display the channel frequency and the fact that it is detected and locked The two important items to view are the AGC and Signal To Noise ratio numbers If the signal decreases the numbers increase and vice versa Acceptable ranges for AGC are 18 to 54 SNR ranges are 16 to 22 for ATSC and 29 to 38 for 256QAM 32 Chapter 2 Service Troubleshooting Chie Seg Dea vara Chan Bed CH Ferg Pa raba ala Erraru ELLE IT ff ii ss oS i e D ca a QAM DIGITAL RECEPTION ACCEPTABLE DIGITAL SIGNAL READINGS PEAK LEVEL RESETS WHEN CHANNEL IS CHANGED AGC 18 54 SNR ATSC 16 22 QAM256 MI
47. 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 The BU1 board must be replaced to rectify this Trident Video Process Failure The unit will shut down and the power LED will blink in groups of 11 The BU1 board must be replaced to rectify this BH Board Communication Error Unique to the KDL32XBR4 and KDL40D3000 that utilize frame rate doubling the communication between the BH board and the LCD panel TCON is monitored and the unit will shut down if this communication fails The power LED will blink in groups of 12 BUT to Panel S series models to BH XBR4 D3000 series Communication Error If either of these events occurs the power LED will blink at one half second intervals continuously The unit will not shut down The backlights will be lit but there will be no video display including OSD graphics This can be caused by an unplugged LVDS cable or a failure of BU1 or BH board ora defective panel TCON failure 41 Chapter 1 Features and Circuit Descriptions 20 Chapter 1 Features and Circuit Descriptions Q4017 Q4016 DC ALERT 1 TRIDENT 3 DDR 2 5V CN4001 55 DE 55 7 gt m CN6201 G1H CN6202 G3 77 04018 04019 AU GND 7 O O 7 gt NIN MER MAIN POWER FAILURE 2x PANEL TEMP 12V TO SCL id m
48. 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 Circuit Board Locations The location of the major circuit boards is illustrated in Figures 2 1 through 2 4 They are as follows Figure 2 1 KDL26 3253000 KDL32830L1 Figure 2 2 KDL32XBR4 Figure 2 3 KDL40S3000 KDL40S30L1 Figure 2 4 KDL46S3000 Figure 2 5 KDL40D3000 Note the left and right support brackets that are visible when the rear cover is removed These may be removed at any time during service in order to remove circuit boards more easily If both brackets are removed necessary if LCD panel is replaced attention must be paid as to which side of the units the brackets came from Each bracket is marked L and These left and right markings set when viewing the FRONT of the television not the rear Locater pins are also located at the tops of the brackets and are not in the same offset location If the brackets are installed incorrectly they will not sit flush and cause problems when trying to install the screws for a wall mount bracket Proper bracket install
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