SONY LCD TV KDL-40V2500 KDL-46V2500 KDL-46V25L1

LCD DIGITAL COLOR TELEVISION SERVICE MANUAL WAX2F CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION 9-883-722-03 KDL-40V2500 RM-YD012 CANADA KDL-40V2500 RM-YD012 US KDL-46V2500 RM-YD012 CANADA KDL-46V2500 RM-YD012 US KDL-46V25L1 RM-YD012 US HISTORY INFORMATION FOR THE FOLLOWING MANUAL: ORIGINAL MANUAL ISSUE DATE: 9/2006 ☛ :UPDATED ITEM REVISION DATE SUBJECT 9/2006 No revisions or updates are applicable at this time. 9/2006 Added APPENDIX A: ENCRYPTION KEY COMPONENTS to service manual. Added Page A-1 Updated Table of Contents. Replaced page 3 Updated Encryption Key notes. Replaced pages 23, 54-58, and 64 1/2007 Updated Block Diagram to show correct Boards. Replaced page 25.

LCD DIGITAL COLOR TELEVISION SERVICE MANUAL WAX2F CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION 9-883-722-03 KDL-40V2500 RM-YD012 CANADA KDL-40V2500 RM-YD012 US KDL-46V2500 RM-YD012 CANADA KDL-46V2500 RM-YD012 US KDL-46V25L1 RM-YD012 US Self Diagnosis Supported model KDL-40V2500 RM-YD012

3 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 TABLE OF CONTENTS SECTION TITLE PAGE SECTION TITLE PAGE Speciﬁcations ................................................................................. 4 Warnings and Cautions .................................................................. 6 Safety-Related Component Warning .............................................. 7 Safety Check-Out ........................................................................... 9 Self-Diagnostic Function............................................................... 10 SECTION 1: DISASSEMBLY............................................................... 12 1-1. Rear Cover Removal ............................................... 12 1-2. Vesa Bracket Assembly and Stand Removal........... 13 1-3. H1U Board Removal ................................................ 14 1-4. G2A Board Removal ................................................ 14 1-5. H2U Board Removal ................................................ 15 1-6. AU Board Removal .................................................. 15 1-7. QT Board Removal .................................................. 16 1-8. H3U Board and Speaker Removal .......................... 16 1-9. QSF board and BU Board Removal ........................ 17 1-10. LCD Panel Removal ................................................ 18 SECTION 2: SERVICE ADJUSTMENTS ............................................. 19 2-1. Remote Adjustment Buttons and Indicators ......................... 19 2-2. Accessing Service Adjustments ........................................... 19 2-2-1. Accessing the Digital Service Adjustment Menus .... 19 2-2-2. Viewing the Digital Module Box (Q-Box) Service Items ........................................................... 20 2-2-3. Accessing the Analog Service Adjustment Menus ... 20 2-3. Resetting the User Menu - Factory Reset ............................ 21 2-4. Aging Mode .......................................................................... 21 2-5. White Balance Adjustment. .................................................. 22 SECTION 3: DIAGRAMS ..................................................................... 23 3-1. Circuit Boards Location ........................................................ 23 3-2. Printed Wiring Boards and Schematic Diagrams Information ......................................... 23 3-3. Block Diagram ...................................................................... 25 3-4. Schematics and Supporting Information .............................. 26 AU Board Schematic Diagram (1 of 2) ................................. 26 AU Board Schematic Diagram (2 of 2) ................................. 27 BU Board Schematic Diagram (1 of 9) ................................. 29 BU Board Schematic Diagram (2 of 9) ................................. 30 BU Board Schematic Diagram (3 of 9) ................................. 31 BU Board Schematic Diagram (4 of 9) ................................. 32 BU Board Schematic Diagram (5 of 9) ................................. 33 BU Board Schematic Diagram (6 of 9) ................................. 34 BU Board Schematic Diagram (7 of 9) ................................. 35 BU Board Schematic Diagram (8 of 9) ................................. 36 BU Board Schematic Diagram (9 of 9) ................................. 37 G2A Board Schematic Diagram ........................................... 39 H1U Board Schematic Diagram ........................................... 41 H2U Board Schematic Diagram ........................................... 42 H3U Board Schematic Diagram ........................................... 44 QSF Board Schematic Diagram (1 of 5) .............................. 45 QSF Board Schematic Diagram (2 of 5) .............................. 46 QSF Board Schematic Diagram (3 of 5) .............................. 47 QSF Board Schematic Diagram (4 of 5) .............................. 48 QSF Board Schematic Diagram (5 of 5) .............................. 49 QT Board Schematic Diagram ............................................. 51 3-5. Semiconductors ................................................................... 53 SECTION 4: EXPLODED VIEWS ........................................................ 54 4-1. Rear Cabinet and Stand Assembly ..................................... 54 4-2. Chassis ............................................................................... 55 4-3. Speakers .............................................................................. 56 4-4. LCD Panel ............................................................................ 57 SECTION 5: ELECTRICAL PARTS LIST ............................................ 58 APPENDIX A: ENCRYPTION KEY COMPONENTS .......................... A-1

4 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 SPECIFICATIONS Design and speciﬁcations are subject to change without notice. 120V-240V AC, 50/60Hz 200W (KDL-40V2500 Only) 240W (KDL-46V2500/46V25L1 Only) Less than 0.1W Video (IN) 1/2/3: S Video (4-Pin Mini DIN (VIDEO 1/2 Only): Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative C: 0.286 Vp-p (Burst signal), 75 ohms Video: 1.0 Vp-p, 75ohms unbalanced, sync negative Audio: 500 mVrms (100% modulation) Impedance:47 kilohms HD/DVD IN 4/5: YP B P R (Component Video): Y:1.0 Vp-p, 75 ohms unbalanced, sync negative P B :0.7 Vp-p, 75 ohms P R :0.7 Vp-p, 75 ohms Signal format: 480i, 480p, 720p, 1080i AUDIO: 500 mVrms (100% modulation) Impedance: 47 kilohms Power Requirements: Power Consumption (W): In Use (Max): In Standby : HDMI IN 6/7: HDMI: Video:480i, 480p, 720p, 1080i, 1080p Audio: Two channel linear PCM 32, 44.1 and 48 kHz, 16, 20 and 24 bits AUDIO (HDMI IN 6 Only): 500 mVrms (100% modulation) Impedance: 47 kilohms AUDIO OUT: 500 mVrms (100% modulation) More than 1 Vrms at the maximum volume setting (Variable) More than 500 mVrms (Fixed) PC IN 8: D-sub 15-pin, analog RGB, 0.7 Vp-p, 75 ohms, positive PC AUDIO INPUT: Stereo mini jack, 0.5 Vrms, 1 kilohm Headphones: Stereo mini jack Impedance: 16 ohms Speaker: Full range: 5.5 × 15 cmm (2 1/4 × 6 inches) (2) (KDL-40V2500) Full range: 7 × 13 cm (2 3/4 × 5 7/16 inches) (2) (KDL-46V2500/46V25L1) Trademark Information TruSurround XT, SRS and ( ) symbol are trademarks of SRS Labs, Inc. TruSurround XT technology is incorporated under license from SRS Labs, Inc. Manufactured under license from BBE Sound, Inc. Licensed by BBE Sound, Inc. under one or more of the following US patents: 5510752, 5736897. BBE and BBE symbol are registered trademarks of BBE Sound, Inc. Macintosh is a trademark licensed to Apple Computer, Inc., registered in the U.S.A and other countries. “BRAVIA” and are trademarks of Sony Corporation. As an ENERGY STAR ® Partner, Sony Corporation has determined that this product meets the ENERGY STAR ® guidelines for energy efficiency. ENERGY STAR ® is a U.S. registered mark. This TV incorporates High-Definition Multimedia Interface (HDMI™) technology. HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC. Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

5 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 Television system American TV Standard ATSC compliant 8VSB ANSI/SCTE 07 2000 (Does not include CableCARD functionality) Channel coverage Analog Digital Terrestrial 2-69 2-69 Cable 1-125 1-135 Antenna 75-ohm external terminal for VHF/UHF Panel System LCD (Liquid Crystal Display) Panel Display Resolution (horizontal x vertical): 1,920 dots x 1,080 lines Screen Size (measured diagonally) 40 inches (KDL-40V2500 Only) 46 inches (KDL-46V2500/46V25L1 Only) Supplied Accessories Remote Commander RM-YD012 Two Size AA (R6) Batteries 75-ohm coaxial cable AC Power Cord HD15-HD15 Cable Suport Belt, Securing Screw, and Wood Screw Cable Holder Operating Instructions Quick Setup Guide Warranty Card Optional Accessories Headphones Plug Adaptor Connecting Cables Wall-Mount Bracket SU-WL51                                                        

6 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 WARNINGS AND CAUTIONS CAUTION 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. 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 COMPONENT WARNING!! Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected. ATTENTION!! 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. Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur. ! 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.

7 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 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 electrical parts list. It is essential that these 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 obtaining written 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 installing the LCD panel on a wall, the LCD panel must be secured using the 4 mounting holes on the rear cover. To avoid damaging the LCD panel:  do not press on the panel or frame edge to avoid the risk of electric shock.  do not scratch or press on the panel with any sharp objects.  do not leave the module in high temperatures or in areas of high humidity for an extended period of time.  do not expose the LCD panel to direct sunlight.  avoid contact with water. It may cause a short circuit within the module.  disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.)  always clean the LCD panel with a soft cloth material.  use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.  protect the panel from ESD to avoid damaging the electronic circuit (C-MOS). LEAKAGE CURRENT HOT CHECK CIRCUIT

8 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 The circuit boards used in these models have been processed using Lead Free Solder. The boards are identified by the LF logo located close to the board designation e.g. H1 etc [ see example ]. The servicing of these boards requires special precautions to be taken as outlined below. example 1 It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is available under the following part numbers : Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics. For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com r e b m u n t r a P r e t e m a i D s k r a m e R 9 1 - 5 0 0 - 0 4 6 - 7 m m 3 . 0 g K 5 2 . 0 0 2 - 5 0 0 - 0 4 6 - 7 m m 4 . 0 g K 0 5 . 0 1 2 - 5 0 0 - 0 4 6 - 7 m m 5 . 0 g K 0 5 . 0 2 2 - 5 0 0 - 0 4 6 - 7 m m 6 . 0 g K 5 2 . 0 3 2 - 5 0 0 - 0 4 6 - 7 m m 8 . 0 g K 0 0 . 1 4 2 - 5 0 0 - 0 4 6 - 7 m m 0 . 1 g K 0 0 . 1 5 2 - 5 0 0 - 0 4 6 - 7 m m 2 . 1 g K 0 0 . 1 6 2 - 5 0 0 - 0 4 6 - 7 m m 6 . 1 g K 0 0 . 1

9 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 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. 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, 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 below. 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. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instructions. 2. A battery-operated AC milliampmeter. The Data Precision 245 digital multimeter is suitable for this job. 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. 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 VAC range are suitable (see Figure A). How to Find a Good Earth Ground A 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). To Exposed Metal Parts on Set 0.15 µF Earth Ground AC Voltmeter (0.75V) Trouble Light AC Outlet Box Ohmmeter Cold-water Pipe Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

10 KDL-40V2500/46V2500/46V25L1 KDL-40V2500/46V2500/46V25L1 SELF-DIAGNOSTIC FUNCTION Self Diagnosis Supported model Control Buttons PIC OFF/TIMER STANDBY POWER TV/VIDEO VOLUME MENU CHANNEL POWER Description of LED Indictors LED LED Type Description * Light is green when the TV set is on * Functions as failure indicator * Blinks green in aging mode TIMER LED Red LED Lights when timer is set PIC OFF LED Green LED Lights when power saving setting is set to picture off (See Instruction Manual) POWER LED Red/Green LED

SONY LCD TV KDL-40V2500 KDL-46V2500 KDL-46V25L1

You're Reading a Preview

Recently Viewed