Sony_kdl-46bx450_kdl-46bx451_chassis_az3fk_service_training_manual_v5.pdf

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Unformatted text preview: Self Diagnosis Supported model HISTORY INFORMATION FOR THE FOLLOWING MANUAL: SERVICE / TRAINING MANUAL ORIGINAL MANUAL ISSUE DATE: 3/2012 Version Date AZ3FK Chassis Segment: P-2F Subject 1.0 2/24/2012 Original Manual Release Date. 2.0 3/5/2012 Insulation Sheets added to Disassembly Section. Replaced page 18. 3.0 3/8/2012 P/N’s for Vesa Bracket removed from Disassembly Section. Replaced page 15. 4.0 7/27/2012 New caution added on page ii. Updated Service Adjustments section. Replaced pages 24 - 27. 5.0 8/14/2012 Updated P/N’s list from Disassembly Section. Replaced pages 17 - 20. LCD Digital Color TV 9-883-873-05 Self Diagnosis Supported model SERVICE / TRAINING MANUAL AZ3FK Chassis Segment: P-2F KDL-40BX450 LCD Digital Color TV 9-883-873-05 MODEL LIST MODEL COMMANDER DESTINATION MODEL COMMANDER DESTINATION KDL-40BX450 RM-YD080 US/CND KDL-46BX450 RM-YD080 US/CND KDL-40BX450 RM-YD080 LA/MX KDL-46BX450 RM-YD080 LA/MX KDL-40BX451 RM-YD080 CND KDL-46BX451 RM-YD080 MX KDL-40BX451 RM-YD080 MX 9-883-873-05 TABLE OF CONTENTS Cautions and Warnings....................................................................................ii Connectors...................................................................................................18 Section 1 - Features and Overview.................................................................1 Screws .........................................................................................................18 Features.........................................................................................................1 Accessories and Packaging.........................................................................19 Specifications.................................................................................................1 Miscellaneous...............................................................................................19 Chassis Overview...........................................................................................3 Remote Commander....................................................................................19 Overall Circuit Description..............................................................................4 Wire Dressing...............................................................................................20 Main Board................................................................................................4 Section 5 - Updates and Adjustments..........................................................21 Power Supply Board..................................................................................4 Overview......................................................................................................21 IR Board.....................................................................................................4 Software Updates for Customers.................................................................21 Switch Unit.................................................................................................4 Software Updates for Servicers....................................................................21 LCD Panel Assembly.................................................................................5 Software Update Responsibility...............................................................22 Section 2 - Troubleshooting............................................................................6 Checking the Software Version................................................................22 Overview........................................................................................................6 Examples of Software Correctable Symptoms........................................22 Updating the Software...............................................................................6 Accessing Service Adjustment Mode...........................................................23 Self Diagnosis Function..................................................................................6 Completing Service Requirements When Replacing the Main Board..........24 Standby LED Blink Count..........................................................................6 Viewing the Status Information................................................................24 Viewing the Self Check Diagnosis History.................................................7 Selecting the Panel ID Code....................................................................25 Triage Chart....................................................................................................8 Adding the Serial Number........................................................................26 Section 3 - Flow Charts and Diagrams...........................................................9 Adding the Model Name..........................................................................27 Block Diagram................................................................................................9 Completing Service Requirements When Replacing the LCD Panel...........29 No Power......................................................................................................10 Verifying the Panel ID Code.....................................................................29 Standby LED Blinking...................................................................................12 Resetting Panel Operation Time..............................................................30 No Video.......................................................................................................13 Accessing Factory Adjustment Mode...........................................................31 Section 4 - Disassembly/Part Number Information.....................................15 Adjusting the Color Temperature.............................................................31 Table-Top Stand and Rear Cover Removal..................................................15 Appendix A: Encryption Key Components................................................ A-1 Main Board (A) and Power Supply Board (G10/G11) Removal....................16 Panel Brackets and LCD Panel Removal.....................................................17 Cleaning the LCD Panel..........................................................................17 KDL-40BX450/40BX451/46BX450/46BX451 i CAUTIONS AND WARNINGS CAUTION!! ATTENTION!! These 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. Ces instructions de service sont à l’usage du personnel de service qualifié seulement. Pour prévenir le risque de choc électrique, ne pas faire l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifié faire ainsi. WARNING!! An isolation transformer should be used during any service to avoid possible shock hazard, in case of live chassis. ! SAFETY-RELATED COMPONENT WARNING!! There are critical components used in LCD color TVs that are important for safety. These components are identified with shading and ! mark on the schematic diagrams and the parts list. It is essential that these critical parts be replaced only with the part number specified in the parts list to prevent electric shock, fire or other hazard. NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and labor warranty. ATTENTION!! For safety reasons, component level repair of the Power Supply Boards and/or the Inverter Boards is prohibited. ALERTE!! Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. ! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!! Les composants identifies par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance est critique pour la securite du fonctionnement sont identifies dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte. ATTENTION!! Pour des raisons de sécurité, Interdire de réparer ou remplacer les composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur. KDL-40BX450/40BX451/46BX450/46BX451 ii CAUTIONS AND WARNINGS SETTING UP AND CARRYING THE TV ●● Disconnect all cables when carrying the TV. ●● Carry the TV with the adequate number of people; larger size TVs require two or more people. ●● Correct hand placement while carrying the TV is very important for safety and to avoid damage. USE CAUTION WHEN HANDLING THE LCD PANEL When repairing the LCD panel, be sure you are grounded by using a wrist band. When installing the LCD panel on a 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 of electric 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 of high 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 within the module. 6. Disconnect the AC power when replacing the backlight or inverter circuit. (High voltage occurs at the inverter circuit at 650 Vrms). 7. Always clean the LCD panel with a soft cloth material. 8. Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short. 9. Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS). 10. During the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth. KDL-40BX450/40BX451/46BX450/46BX451 iii CAUTIONS AND WARNINGS CLEANING THE LCD PANEL CAUTION: When cleaning the TV, be sure to unplug the power cord to avoid any chance of electric shock. Clean the cabinet of the TV with a dry soft cloth. Wipe the LCD screen gently with a soft cloth. ;; Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water. ;; If using a chemically pretreated cloth, please follow the instruction provided on the package. ;; Never use strong solvents such as a thinner, alcohol or benzine for cleaning. ;; Periodic vacuuming of the ventilation openings is recommended to ensure proper ventilation. ;; Do Not use paper towels, any type of abrasive pad, rags, rubber or vinyl materials to clean the screen. Using these materials could easily scratch the screen which may result in permanent damage. ;; Do Not use any cleaning product containing alkaline/acid cleaner, scouring powder or volatile solvent, such as alcohol, ammonia, benzine, thinner or insecticide. Using any of these harsh cleaners may result in permanent damage to the screen. ;; Do Not spray water or detergent directly onto the TV screen. If liquid drips into the bottom of the screen it may cause a failure. KDL-40BX450/40BX451/46BX450/46BX451 iv CAUTIONS AND WARNINGS SAFETY CHECK-OUT After 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 poorly soldered connections. Check the entire board surface for solder splashes and bridges. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low voltage scale. Nearly all battery-operated digital multimeters that have a 2 VAC range are suitable. (see Figure A) To Exposed Metal Parts on Set 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. AC Voltmeter (0.75V) 0.15 µF 4. Look for unauthorized replacement parts, particularly transistors, 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 obvious signs of deterioration. Point them out to the customer and recommend their replacement. 6. Check the line cords for cracks and abrasion. Recommend the 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 AC leakage. Check leakage as described in “Leakage Test”. LEAKAGE TEST The 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. Earth Ground Figure A. Use an AC voltmeter to check AC leakage. HOW TO FIND A GOOD EARTH GROUND The cover-plate retaining screw on most AC outlet boxes is at earth ground. Verify the AC outlet box retaining screw ground by connecting a 60W to 100W incandescent (not a neon or fluorescent 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) Trouble Light AC Outlet Box 1. A commercial leakage tester. Follow the manufacturers’ instructions provided with the tester. 2. A battery-operated AC milliammeter. Figure B. Checking for earth ground. KDL-40BX450/40BX451/46BX450/46BX451 v SECTION 1 - FEATURES AND OVERVIEW FEATURES SPECIFICATIONS The AZ3FK chassis is one of several designs for the 2012 model line of Sony Bravia® LCD televisions. This manual covers the following models: KDL-40BX450 KDL-40BX451 KDL-46BX450 KDL-46BX451 System Television system NTSC: American TV standard ATSC (8VSB terrestrial): ATSC compliant 8VSB QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality) Channel coverage Analog terrestrial: 2 - 69 / Digital terrestrial: 2 - 69 Analog Cable: 1 - 135 / Digital Cable: 1 - 135 Panel system LCD (Liquid Crystal Display) Panel Speaker output KDL-46/40BX450: 6 W + 6 W KDL-46/40BX451: 8 W + 8 W Input/Output jacks The BRAVIA® Sync™ BX45x series LED LCD HDTV ●● Brilliant Full HD (1080p) picture quality ●● Four HD inputs for a cable box, PS3™ and more ●● Share your pictures on the big screen via USB input ●● Crisp detail & contrast w/ Clear Resolution Enhancer ●● Optimized picture based on what you’re watching ●● Less grain & a clear picture w/ Digital Noise Reduction ●● Theater-like movie viewing with 24p True Cinema ●● One remote for multiple devices with BRAVIA® Sync™2 CABLE/ANTENNA 75-ohm external terminal for RF inputs VIDEO IN 1 VIDEO: 1 Vp-p, 75 ohms unbalanced, sync negative AUDIO: 500 mVrms (Typical) / Impedance: 47 kilohms COMPONENT IN YPBPR (Component Video): Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative / PB:0.7 Vp-p, 75 ohms P R : 0.7 Vp-p, 75 ohms / Signal format: 480i, 480p, 720p, 1080i, 1080p AUDIO: 500 mVrms (Typical) / Impedance: 47 kilohms HDMI IN 1/2 HDMI: Video: 480i, 480p, 720p, 1080i, 1080p, 1080/24p Audio: Two channel linear PCM 32, 44.1 and 48 kHz, 16, 20 and 24bits, Dolby Digital PC Input (see Operating Instructions) 1 AUDIO OUT 500 mVrms (typical) DIGITAL AUDIO OUT (OPTICAL) PCM/Dolby Digital optical signal P C IN D -s ub 1 5 -p in, a na log R G B , 0 . 7 V p - p , 7 5 ohms , p os itive See the PC Input Signal Reference Chart for PC and HDMI IN PC/HDMI IN 1 AUDIO IN Stereo mini jack, 500 mVrms, (Typical) / Impedance: 47 kilohms US B K D L - 4 6 /4 0 B X 4 5 0 : P hoto, Mus ic a nd V id e o KDL-46/40BX451: Photo and Video 1. Cables sold separately. 2. Syncs with BRAVIA® Sync or Theatre Sync™ products. KDL-40BX450/40BX451/46BX450/46BX451 1 SECTION 1 - FEATURES AND OVERVIEW Model name KDL-46BX450 KDL-46BX451 KDL-40BX450 KDL-40BX451 Power and others 110-240 V AC, 50/60 Hz (U.S.A./Canada/Mexico 120 V AC, 60 Hz) Power requirement Power consumption 1 88 W in use in standby Less than 0.2 W with 120 V AC and with 240 V AC less than 0.3 W Screen size* (inches measured diagonally) D is p la y re s olution 46 40 1 , 9 2 0 d ots ( horiz onta l) × 1 , 0 8 0 line s ( ve rtic a l) Speaker/Full range (2) (mm) (inches) Dimensions* with stand (mm) (inches) without stand (mm) (inches) 40 × 100 (1 5 /8 × 4) 1,112 × 713 × 279 43 7 /8 × 28 1 /8 × 11 980 × 639 × 231 38 5/8 × 25 1/4 × 9 1 /8 1,112 × 675 × 97 43 7 /8 × 26 5 /8 × 3 7/8 980 × 601 × 94 38 5/8 × 23 3/4 × 3 3 /4 wall-mount hole pattern (mm) wall-mount screw size Mass* 15 8 W 300 × 300 M6 (length: 8-12mm) (mm) with stand (kg) (lb) 17.2 37.9 13.8 30.4 without stand (kg) (lb) 16.0 35.3 12.8 28.2 Supplied accessories common to all models Optional accessories Remote Control RM-YD080 (1)/Size AA batteries (2)/Operating Instructions (1)/Quick Setup Guide (1)/Warranty Card (1)/Safety and Regulatory Booklet (1)/Software License (1)/Stand installation guide (1)/Table-Top Stand (1 set)/Screw (3) Connecting cables / Support Belt Kit / Wall-Mount Bracket: SU-WL500 • Optional accessories availability depends on its stock. • Design and specifications are subject to change without notice. * Dimensions and mass are approximate values. KDL-40BX450/40BX451/46BX450/46BX451 2 SECTION 1 - FEATURES AND OVERVIEW CHASSIS OVERVIEW The primary circuits in the AZ3FK chassis consist of a Main Board (A Board), Power Supply Board (G10 Board for the 40” models and G11 Board for the 46” models), the IR Board (H Board), the Switch Unit and the LCD Panel Assembly which includes the TCON Board and the Inverter MT Board. NOTE: For connector part number information, refer to “Connectors” on page 18. For Wire Dressing information, refer to “Wire Dressing” on page 20. INV G10/G11 A SWITCH UNIT H BOARD LAYOUT EXAMPLE FOR ALL MODELS KDL-40BX450/40BX451/46BX450/46BX451 3 SECTION 1 - FEATURES AND OVERVIEW OVERALL CIRCUIT DESCRIPTION The “Block Diagram” on page 9 provides an overview of the AZ3FK chassis. The following are descriptions of the boards and their functions. MAIN BOARD Common to all models utilizing the AZ3FK chassis, the Main Board (A Board) contains most of the video processing circuitry along with all audio processing. Control of the television is accomplished via a CPU embedded within the MT5389 processor. Below is a list of the key components located on the Main Board. TUNER The tuner is a combination ATSC/NTSC unit. It can receive traditional analog NTSC signals via cable or terrestrial along with ATSC digital signals via terrestrial (8VSB) or cable (64 or 256 QAM). MT5389PROCESSOR This IC performs the majority of the necessary audio and video processing on the Main Board. Analog Video Input Switch: All analog video sources are selected and A/D converted and scaled (if necessary) to 1920 X 1080p 60HZ resolution. Digital Audio and Video Decoder: The MPEG2 and Digital Dolby audio streams are received from the tuner for decompression. All video sources which are not native 1920 X 1080p 60HZ are scaled to this resolution. Digital audio content is output to the class D amplifier for processing and amplification. Audio Processing: Analog audio sources are selected and A/D converted directly by the MT5389. The audio information is then processed digitally. Digital audio from the tuner and HDMI sources is also input and processed. Class D amplifier provides the drive for the speakers. HDMI Input and Switching: The customer can select the HDMI1 through HDMI2 input. Each HDMI input contains a dedicated EDI NVM (not sho...
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  • Fall '19
  • Backlight, Liquid crystal displays, Main Boards

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