索尼KLV-46X300A液晶电视维修手册

MODIFICATION HISTORYMODEL NAME : KL V-46/52X300A, 46/52W380ASERVICE MANUALP ARTS No. : 9-834-177-02* Blue characters are linking.Ver.DAT A CONTENTS1.02007.09Issued1.12008.06Addition of KLV-46W380A/52W380A Models.(P. 2 to P. 3, P. 6, P. 1-13, P. 1-19, P. 4-1, P. 5-15, P. 5-22, P. 5-31)SERVICE MANUALFIX2 CHASSISKLV-46X300A/52X300A/46W380A/52W380ALCD Colour TVChina ModelRM-SA013KLV-46X300A/52X300ASPECIFICATIONS* Specified standby power is reached after the TV finishes necessary internal processes. ** The values of dimensions and mass are approximate.CAUTIONThese servicing instructions are for use by qualified service personnel only.To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.WARNING!!An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis.The chassis of this receiver is directly connected to the ac power line.! SAFETY-RELATED COMPONENTWARNING!!Replace all components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony.WARNINGS AND CAUTIONSSAFETY-RELATED COMPONENTWARNINGIt is essential that all critical parts be replaced only with the part number specified in the electrical parts list to prevent electric shock, fire, or other hazard.NOTE:Do not modify the original design without obtainingwritten permission from the manufacturer or you will void the original parts and labor guarantee.USE CAUTION WHEN HANDLING THE LCD PANEL When repairing the LCD panel, be sure you are grounded by using a wrist band.When repairing the LCD panel on the wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.1)Do not press on the panel or frame edge to avoid the risk ofelectric shock.2)Do not scratch or press on the panel with any sharp objects.3)Do not leave the module in high temperatures or in areas ofhigh humidity for an extended period of time.4)Do not expose the LCD panel to direct sunlight.5)Avoid contact with water. It may cause a short circuit withinthe module.6)Disconnect the AC power when replacing the backlight (CCFL)or inverter circuit.(High voltage occurs at the inverter circuit at 650Vrms.)7)Always clean the LCD panel with a soft cloth material.8)Use care when handling the wires or connectors of the invertercircuit. Damaging the wires may cause a short.9)Protect the panel from ESD to avoid damaging the electroniccircuit (C-MOS).SAFETY CHECK-OUTAfter correcting the original service problem, perform the following safety checks before releasing the set to the customer: 1.Check the area of your repair for unsoldered or poorlysoldered connections. Check the entire board surface forsolder splashes and bridges.2.Check the interboard wiring to ensure that no wires are“pinched” or touching high-wattage resistors.3.Check that all control knobs, shields, covers, ground straps,and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.4.Look for unauthorized replacement parts, particularlytransistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.5.Look for parts which, though functioning, show obvioussigns of deterioration. Point them out to the customer andrecommend their replacement.6.Check the line cords for cracks and abrasion. Recommendthe replacement of any such line cord to the customer.7.Check the antenna terminals, metal trim, “metallized”knobs, screws, and all other exposed metal parts for ACleakage. Check leakage as described below.Leakage TestThe AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes).Leakage current can be measured by any one of three methods.1. A commercial leakage tester, such as the Simpson 229 orRCA WT-540A. Follow the manufacturers’ instructions touse these instructions.2. A battery-operated AC milliampmeter. The Data Precision245 digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor by means of aVOM or battery-operated AC voltmeter. The “limit”indication is 0.75 V, so analog meters must have an accurate low voltage scale.The Simpson’s 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all battery-operated digital multimeters that have a 2 V AC range are suitable (see Figure A).How to Find a Good Earth GroundA cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also at earth ground. If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see Figure B).FigureA. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.SELF DIAGNOSIS FUNCTIONThe units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY 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 STANDBY LED flash indicators is listed in the instruction manual for the user’s knowledge and reference.If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.1-1.DIAGNOSTIC TEST INDICATORSWhen an error occurs, the STANDBY LED will flash a set number of times to indicate the possible cause of the problem.If there is more than one error, the LED will identify the first of the problem areas.Result for all of the following diagnostic items are displayed on screen.If the screen displays a “0”, no error has occurred .Number of times STANDY LEDMonitoring Items Diagnostic Item Description(Red) flashes (Screen Display)2 times POW OVP Main Power Over Voltage Protection 3 times POW ERR1Power Error 5 times T_CON T_CON Error6 times BACKLITE Back Light Error (Panel Inverter)7 times TEMP ERR Temperature Abnormal Detection8 times AUD PROT Audio Abnormal Detection9 times FAN_ERR FAN Error (Not Detected. Display Only)13 timesBALANCERPanel Balancer Error1-2.DISPLAY OF STANDBY LED FLASH COUNT1-3.STOPPING THE STANDBY FLASHTurn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY lamp from flashing.< KLV-46/52X300A >< KLV-46/52W380A >1-4.SELF-DIAGNOSTIC SCREEN DISPLAYFor errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurrences of failure for confirmation on the screen:1-4-1.To Bring Up Screen TestIn standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen After you have completed the repairs, clear the result display to “0”.1-5.Quitting Self-diagnostic screenTo quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.TORS"[ SELF-DIAGNOSTIC SCREEN DISPLAY ]TABLE OF CONTENTSSAFETY CHECK-OUT (5)SELF DIAGNOSIS FUNCTION (6)1.DISASSEMBLY...............................................1-11-1.KLV-46X300A.......................................................1-1 1-1-1.REAR COVER ASSY REMOVAL................1-1 1-1-2.STAND ASSY AND ARM ASSYREMOVAL......................................................1-1 1-1-3.H1 BOARD REMOVAL.................................1-2 1-1-4.HW2 BOARD REMOVAL.............................1-2 1-1-5.DF1 BOARD AND GF1 BOARDREMOVAL......................................................1-3 1-1-6.AG BOARD AND FB2 BOARDREMOVAL......................................................1-3 1-1-7.TUG BOARD REMOVAL..............................1-4 1-1-8.SPEAKER AND FAN REMOVAL................1-4 1-1-9.UB1 BOARD REMOVAL..............................1-5 1-1-10.H3 BOARD AND H4 BOARD ANDAC INLET REMOVAL...................................1-5 1-1-11.LCD PANEL AND FRONT CABINET ASSYREMOVAL......................................................1-6 1-2.KLV-52X300A.......................................................1-7 1-2-1.REAR COVER ASSY REMOVAL................1-7 1-2-2.STAND ASSY AND ARM ASSYREMOVAL......................................................1-7 1-2-3.H1 BOARD REMOVAL.................................1-8 1-2-4.HW2 BOARD REMOVAL.............................1-8 1-2-5.DF2, DF3 AND GF1 BOARDS REMOVAL.1-9 1-2-6.AG AND FB2 BOARDS REMOVAL............1-9 1-2-7.TUG BOARD REMOVAL............................1-10 1-2-8.SPEAKER AND FAN REMOVAL..............1-10 1-2-9.UB1 BOARD REMOVAL............................1-11 1-2-10.H3 BOARD AND H4 BOARD ANDAC INLET REMOVAL.................................1-11 1-2-11.LCD PANEL AND FRONT CABINET ASSYREMOVAL....................................................1-12 1-3.KLV-46W380A....................................................1-13 1-3-1.REAR COVER ASSY REMOVAL..............1-13 1-3-2.STAND ASSY AND ARM ASSYREMOVAL....................................................1-13 1-3-3.HW1 BOARD REMOVAL...........................1-14 1-3-4.HW2 BOARD REMOVAL...........................1-14 1-3-5.DF2, DF3 AND GF1 BOARDSREMOVAL....................................................1-15 1-3-6.AG AND FB2 BOARDS REMOVAL..........1-15 1-3-7.TUG BOARD REMOVAL............................1-16 1-3-8.CHASSIS BRACKET AND STAYREMOVAL....................................................1-16 1-3-9.FAN AND SPEAKER REMOVAL..............1-17 1-3-10.UB2 BOARD REMOVAL............................1-17 1-3-11.LCD PANEL AND HW3 BOARDREMOVAL....................................................1-18 1-4.KLV-52W380A....................................................1-19 1-4-1.REAR COVER ASSY REMOVAL..............1-19 1-4-2.STAND ASSY AND ARM ASSYREMOVAL....................................................1-191-4-3.HW1 BOARD REMOVAL...........................1-20 1-4-4.HW2 BOARD REMOVAL...........................1-20 1-4-5.DF4, DF5 AND GF2 BOARDSREMOVAL....................................................1-21 1-4-6.FB TOP SHIELD REMOVAL......................1-21 1-4-7.AG AND FB2 BOARDS REMOVAL..........1-22 1-4-8.TUG BOARD REMOVAL............................1-22 1-4-9.UB2 BOARD REMOVAL............................1-23 1-4-10.CHASSIS BRACKET AND STAYREMOVAL....................................................1-23 1-4-11.SPEAKER REMOVAL.................................1-24 1-4-12.LCD PANEL AND HW3 BOARDREMOVAL....................................................1-242.SERVICE MODE ADJUSTMENT...................2-12-1.Go to TV standby condition...................................2-1 2-2.Entering Service Mode...........................................2-1 2-3.Change Setting Data for TV...................................2-2 2-4.Write data for TVM................................................2-3 2-5.Entering BEM service menu..................................2-4 2-6.Change Setting Data for BEM...............................2-5 2-7.Write data for BEM................................................2-6 2-8.CH Model...............................................................2-7 2-9.How to change shipping condition........................2-83.TROUBLE SHOOTING...................................3-13-1.No Power (Flow Chart_B).....................................3-2 3-2.Set Reboots.............................................................3-3 3-3.SELF DIAGNOSIS................................................3-4 3-3-1.Flow Chart_C...................................................3-5 3-3-2.POWER OVP (RED 2 Times blink)...............3-6 3-3-3.POWER ERROR (RED 3 Times blink)..........3-6 3-3-4.T-CON ERROR (RED 5 Times blink)............3-7 3-3-5.BACK LIGHT ERROR(RED 6 Times blink)........................................3-7 3-3-6.TEMP ERROR (RED 7 Times blink).............3-8 3-3-7.AUDIO ERROR (RED 8 Times blink)...........3-8 3-3-8.DTAU ERROR (RED 10 Times blink)...........3-9 3-3-9.BALANCER ERROR(RED 13 Times blink)....................................3-10 MUNICATION ERROR.............................3-11 3-5.AUDIO PROBLEM (Flow Chart_D)..................3-12 3-6.VIDEO PROBLEM (Flow Chart_E)...................3-134.DIAGRAMS.....................................................4-14-1.CIRCUIT BOARDS LOCATION.........................4-1(1)KLV-46X300A................................................4-1(2)KLV-52X300A................................................4-1(3)KLV-46W380A................................................4-1(4)KLV-52W380A................................................4-15.EXPLODED VIEWS........................................5-15-1.KLV-46X300A.......................................................5-2 5-1-1.REAR COVER ASSY.....................................5-2 5-1-2.ARM ASSY AND STAND ASSY ANDHW2 BOARD..................................................5-3 5-1-3.CHASSIS-1......................................................5-4 5-1-4.CHASSIS-2......................................................5-5 5-1-5.FAN AND SPEAKER.....................................5-6 5-1-6.FRONT CABINET ASSY ANDLCD PANEL....................................................5-7 5-1-7.CONNECTOR ASSY......................................5-8 5-2.KLV-52X300A.......................................................5-9 5-2-1.REAR COVER ASSY.....................................5-9 5-2-2.ARM ASSY AND STAND ASSY ANDHW2 BOARD................................................5-10 5-2-3.CHASSIS-1....................................................5-11 5-2-4.CHASSIS-2....................................................5-12 5-2-5.FAN AND SPEAKER...................................5-13 5-2-6.FRONT CABINET AND LCD PANEL.......5-14 5-3.KLV-46W380A....................................................5-15 5-3-1.REAR COVER ASSY...................................5-15 5-3-2.ARM ASSY AND STAND ASSY ANDHW2 BOARD................................................5-16 5-3-3.CHASSIS-1....................................................5-17 5-3-4.CHASSIS-2....................................................5-18 5-3-5.SPEAKER AND CHASSIS BRACKET.......5-19 5-3-6.BEZEL AND LCD PANEL...........................5-20 5-3-7.CONNECTOR ASSY....................................5-21 5-4.KLV-52W380A....................................................5-22 5-4-1.REAR COVER ASSY...................................5-22 5-4-2.ARM ASSY AND STAND ASSY ANDHW2 BOARD................................................5-23 5-4-3.CHASSIS-1....................................................5-24 5-4-4.CHASSIS-2....................................................5-25 5-4-5.SPEAKER AND CHASSIS BRACKET.......5-26 5-4-6.BEZEL AND LCD PANEL...........................5-27 5-4-7.CONNECTOR ASSY....................................5-28 5-5.PACKING MATERIALS....................................5-29 5-5-1.KLV-46X300A..............................................5-29 5-5-2.KLV-52X300A..............................................5-30 5-5-3.KLV-46/52W380A........................................5-311-1.KLV-46X300A1-1-1.REAR COVER ASSY REMOVALSECTION 1 DISASSEMBLY1-1-2.STAND ASSY AND ARM ASSY REMOVAL1 Two screws(+BVTP2 4X16)17 Two screws(+PSW M5X8)2 Base stand assy1-1-4.HW2 BOARD REMOVAL1 Two screws 571-1-5.DF1 BOARD AND GF1 BOARD REMOVAL1-1-6.AG BOARD AND FB2 BOARD REMOVAL6 Two screws 21 One screw 2 Two screws1-1-8.SPEAKER AND FAN REMOVAL(+BV 3X16)1-1-10.H3 BOARD AND H4 BOARD AND AC INLET REMOVAL87qa Chassis bracket1-1-11.LCD PANEL AND FRONT CABINET ASSY REMOVALOrnamental frame Vqk One screw (M2 taping)qg w;qf qh qj1 two screws17 Two screws (+PSW M5X8)1-2-2.STAND ASSY AND ARM ASSY REMOVAL1-2.KLV-52X300A1-2-1.REAR COVER ASSY REMOVAL1-2-3.H1 BOARD REMOVAL1-2-4.HW2 BOARD REMOVALControl button assy1 Two screws6 Two screws 6 Two screws 1-2-6.AG AND FB2 BOARDS REMOVAL1-2-5.DF2, DF3 AND GF1 BOARDS REMOVAL1-2-7.TUG BOARD REMOVAL1-2-8.SPEAKER AND FAN REMOVAL Under cover1-2-9.1-2-10.H3 BOARD AND H4 BOARD AND AC INLET REMOVAL1-2-11.LCD PANEL AND FRONT CABINET ASSY REMOVALOne screw Ornametal joint Two screws Six screw Ornamental frame Vqk One screw (M2 taping)qg qf qj Ornamental joint1-3.KLV-46W380A1-3-1.REAR COVER ASSY REMOVAL1-3-2.STAND ASSY AND ARM ASSY REMOVAL3 Two screws 1 Six screws 11 Five screws Rear cover assy6 Two screws7 Three screws1-3-3.HW1 BOARD REMOVAL1-3-4.HW2 BOARD REMOVAL1-3-5.DF2, DF3 AND GF1 BOARDS REMOVAL1-3-6.AG AND FB2 BOARDS REMOVAL1231-3-7.TUG BOARD REMOVAL1-3-8.1-3-9.FAN AND SPEAKER REMOVAL(+BV 3X16) 1-3-10.UB2 BOARD REMOVAL1-3-11.LCD PANEL AND HW3 BOARD REMOVALOne screwsHW3 board1-4-2.STAND ASSY AND ARM ASSY REMOVAL1-4.KLV-52W380A1-4-1.REAR COVER ASSY REMOVAL41 Four screws Four screws 12 Two screwsFour screws 41-4-6.FB TOP SHIELD REMOVAL1-4-5.DF4, DF5 AND GF2 BOARDS REMOVAL321761-4-7.AG AND FB2 BOARDS REMOVAL1-4-10.2134Three screws LCD PANEL AND HW3 BOARD REMOVAL1-4-12.KLV-46/52X300A, 46/52W380A (CH) 2-1SECTION 2SERVICE MODE ADJUSTMENT2-1.Go to TV standby condition.2-2.Entering Service Mode1.Push “i+ (info)”, “5”, “Volume+” then “TV button”with remote commander.2.Service mode menu will appear on display.Service menuHow to go to service mode234Remote CommanderKLV-46/52X300A, 46/52W380A (CH) 2-22-3.Change Setting Data for TV1.Press “2 / 5”on remote commander to select (up / down) category.2.Press “1 / 4”on remote commander to select (up / down) Item.3.Press “3 / 6”on remote commander to change (up / down) data.Press 2: increment Press 3: increment Press 6: decrementRemote Commander 12Change data by service modePress 5: decrementPress 1: increment Press 4: decrement3Service menuKLV-46/52X300A, 46/52W380A (CH) 2-32-4. Write data for TVM1. Press “Mute” on remote commander. It shows green “SERVICE ” changes to green “WRITE ”.2. Press “0” on remote commander. Green “WRITE ” changes to red “WRITE ”. It indicates writing processing.3. After for 1 minute, red “WRITE ” changes to green “SERVICE ”.Writing process is done at this point.Service menuSERVICE -> WRITE -> WRITE -> SERVICE12Remote CommanderKLV-46/52X300A, 46/52W380A (CH) 2-42-5. Entering BEM service menu1. Press “Previous channel” on remote commander.1Service menuRemote CommanderKLV-46/52X300A, 46/52W380A (CH) 2-5Change Setting data by service mode2-6. Change Setting Data for BEM1. Press “2/5” on remote commander to select (up / down) category.2. Press “1/4” on remote commander to select (up / down) Item.3. Press “3/6” on remote commander to change (up / down) data.Press 3: increment Press 6: decrementService menuRemote Commander123Press 2: increment Press 5: decrementPress 1: increment Press 4: decrementKLV-46/52X300A, 46/52W380A (CH) 2-6Change data by service modeService menu2-7. Write data for BEM1. Press “Mute” on remote commander. It shows green “SERVICE ” changes togreen “WRITE ”.2. Press “0” on remote commander. Green “WRITE ” changes to red “WRITE ”.It indicates writing processing.3. After for few second, red “WRITE ” changes to green“SERVICE ”. Writing process is done at this point.SERVICE ->WRITE ->WRITE ->WRITE OK12Remote CommanderSoft ware version check 2-8. CH ModelDataApplication BEM DataApplication TVM DataApplication ASUKA(only for AEP)Application EMMA2LR TypeCPURemote CommanderSet to shipping condition2-9. How to change shipping condition.1. During service mode, press “8” on remote commander.2. Press “mute” on remote commander.3. Press “0” on remote commander.4. Display change to “SERVICE ”“RST-”“RST-EXE ”“RST-EXE ”12The error history will be reset.SECTION 3 TROUBLE SHOOTING3-1. No Power (Flow Chart_B)3-2. Set RebootsTV micro (on AG board) is monitoring BE Micro (on FB2 board) are alive or not likewatch dog timer. When BEM has not boot up, TVM try to re-start. We can see chassis reboot at this case. Check FB2 board has correct power or not.-FB2 board-CN 5600 12V, 6.5V power and harness to GF1(GF2) Board.-F4100, F4102, F5200 conduction.If power rail has no problem, replace FB2 board.Panel Balancer ErrorBALANCER13FAN Error (Not Detected. Display Only)FAN_ERR 9Temperature Abnormal Detection TEMP ERR 7Audio Abnormal DetectionAUD PROT 8Back Light Error (Panel Inverter)BACKLITE 6T-CON ErrorT_CON 5Power Error POW ERR13Main Power Over Voltage Protection POW OVP 2ContentsDisplay(Self Diagnosis mode)Red LED BlinkWhen self diagnosis happens, STANDBY (RED) LED blinks and the history can be seen on display by self diagnosis mode.3-3. SELF DIAGNOSIS3-3-1. Flow Chart_CThis indicates OVP (Over Voltage Protection) of GF1(GF2) board.12V line or 6.5Vline on GF1(GF2) board is over-voltage.TV Micro (on AG board) pin139 detects OVP ERR and shuts down chassis power to Stand-by status.TV Micro #139Normal condition : Low / Error case : HighReplace GF1(GF2) board.3-3-3. POWER ERROR (RED 3 Times blink)This indicates POWER Error, Low B error of 12V from GF1(GF2) board. TV Micro (on AG board) pin150 detects POWER_ERR and shuts down chassis power to Stand-by status.TV Micro #150Normal condition : High / Error case : Low-Check 12V at CN002 #1#2 on AG board. And F200 on AG has 12V or not-Check GF1(GF2) board.This indicates T-CON RDY signal error from timing controller of Panel module.BE micro pin 128 on FB2 board detects it.BE Micro #128Normal condition : High / Error case : LowReplace Panel module.3-3-5. BACK LIGHT ERROR (RED 6 Times blink)This indicates panel power circuit error such as inverter.BE micro pin 78 on FB2 board detects it.BE Micro #78Normal condition : High / Error case : LowReplace DF boards.This indicates high temperature inside chassis. IC001 on AG Board Side is monitoring temperature. IC001 is controlled by BEM I2C.When it happens;-Check chassis environment-Check around IC001 and replace AG if temperature monitoring circuit has problem -Check panel3-3-7. AUDIO ERROR (RED 8 Times blink)This indicates Audio Error (Protection). It happens;-IC8806 on AG board, Audio Amp detects over current, thermal shut down and/or low voltage of itself.-DC voltage detected for speaker line.Check above and replace AG board。