LCD DIGITAL COLOR TELEVISION

SERVICE MANUAL EX2K CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION

9-883-809-02

KDL-26L5000 RM-YD028 USKDL-26L5000 RM-YD028 CANADAKDL-26L5000 RM-YD028 MEXICOKDL-32L5000 RM-YD028 USKDL-32L5000 RM-YD028 CANADAKDL-32L5000 RM-YD028 MEXICO

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

ORIGINAL MANUAL ISSUE DATE: 12/2008

REVISION DATE SUBJECT

12/2008 No revisions or updates are applicable at this time.1/2009 Updated Disassembly Section. Replaced pages 13-20. Updated A Board Conductor Side PWB. Replaced page 42. Updated Self-Diagnostic Function. Replaced page 12

LCD DIGITAL COLOR TELEVISION

SERVICE MANUAL EX2K CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION

9-883-809-02

KDL-26L5000 RM-YD028 USKDL-26L5000 RM-YD028 CANADAKDL-26L5000 RM-YD028 MEXICOKDL-32L5000 RM-YD028 USKDL-32L5000 RM-YD028 CANADAKDL-32L5000 RM-YD028 MEXICO

KDL-32L5000 RM-YD028

3KDL-26L5000/32L5000

KDL-26L5000/32L5000

TABLE OF CONTENTS

SECTION TITLE PAGE SECTION TITLE PAGE

Specifi cations ................................................................................. 4Warnings and Cautions - ENGLISH ............................................... 6Warnings and Cautions - FRENCH ................................................ 7Safety-Related Component Warning .............................................. 8Safety Check-Out ......................................................................... 10Self-Diagnostic Function ................................................................11

SECTION 1: DISASSEMBLY ............................................................... 131-1. Rear Cover Removal ............................................................ 131-2. Switch Unit Removal (Contains H1 Board) .......................... 131-3. A Board and G2BE (Power Supply) Board Removal ........... 141-4. Table-Top Stand Assembly and Under Cover Removal ....... 141-5. Loudspeaker Removal ......................................................... 151-6. Brackets and Spine Removal ............................................... 16

1-6-1. Brackets and Spine Removal (KDL-26L5000 Only) ................................................ 16

1-6-2. Brackets and Spine Removal (KDL-32L5000 Only) ................................................ 16

1-7. H2 Board and LCD Panel Removal ..................................... 171-7-1. Cleaning the LCD Panel ............................................ 17

1-8. Balancer (MT Inverter) Board Removal (KDL-26L5000 Only) ............................................................ 18

1-9. Balancer (MT Inverter) Board Removal (KDL-32L5000 Only) ............................................................ 19

WIRE DRESSING ........................................................................ 20

SECTION 2: SERVICE ADJUSTMENTS ............................................. 212-1. Viewing Service Adjustment Data ........................................ 212-2. Accessing Service Adjustment Mode ................................... 212-3. Resetting to Factory Defaults ............................................... 21

SECTION 3: DIAGRAMS ..................................................................... 223-1. Circuit Boards Location ........................................................ 223-2. Printed Wiring Boards and

Schematic Diagrams Information ......................................... 223-3. Block Diagram ...................................................................... 243-4. Schematics and Supporting Information .............................. 25

A Board Schematic Diagram (1 of 17) .................................. 25A Board Schematic Diagram (2 of 17) .................................. 26A Board Schematic Diagram (3 of 17) .................................. 27A Board Schematic Diagram (4 of 17) .................................. 28A Board Schematic Diagram (5 of 17) .................................. 29A Board Schematic Diagram (6 of 17) .................................. 30A Board Schematic Diagram (7 of 17) .................................. 31A Board Schematic Diagram (8 of 17) .................................. 32A Board Schematic Diagram (9 of 17) .................................. 33A Board Schematic Diagram (10 of 17) ................................ 34A Board Schematic Diagram (11 of 17) ................................ 35A Board Schematic Diagram (12 of 17) ................................ 36A Board Schematic Diagram (13 of 17) ................................ 37A Board Schematic Diagram (14 of 17) ................................ 38A Board Schematic Diagram (15 of 17) ................................ 39A Board Schematic Diagram (16 of 17) ................................ 40A Board Schematic Diagram (17 of 17) ................................ 41G2BE Board Schematic Diagram ......................................... 43H1 Board Schematic Diagram .............................................. 45H2 Board Schematic Diagram .............................................. 47

SECTION 4: EXPLODED VIEWS ........................................................ 494-1. Rear Cover Assembly and Table-Top Stand Assembly ....... 494-2. Chassis ................................................................................ 504-3. Bezel Assembly and LCD Panel .......................................... 514-4. Screw Legend ...................................................................... 52

APPENDIX A: ENCRYPTION KEY COMPONENTS ..........................A-1

4KDL-26L5000/32L5000

KDL-26L5000/32L5000

SPECIFICATIONS

Design and specifi cations are subject to change without notice.

120V - 240V AC, 50/60Hz

VIDEO (IN) 1/2: S Video (4-Pin Mini DIN) (Video 2 only) Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative C: 0.286 Vp-p (Burst signal), 75 ohms Video 1 Vp-p, 75 ohms unbalanced, sync negative Audio 500 mVrms (Typical) Impedance:47 kilohms

COMPONENT IN 1/2:YPBPR (Component Video)

Y:1.0 Vp-p, 75 ohms unbalanced, sync negative PB:0.7 Vp-p, 75 ohms PR:0.7 Vp-p, 75 ohms Signal format: 480i, 480p, 720p, 1080i, 1080p

Audio 500 mVrms (Typical) Impedance: 47 kilohms

Power Requirements HDMI IN 1/2/3:HDMI

Video: 480i, 480p, 720p, 1080i, 1080p, 1080/24p Audio: Two channel linear PCM 32, 44.1, and 48 kz, 16, 20 and 24 bits, Dolby Digital

Audio (HDMI IN 1 only): 500 mVrms (Typical) Impedance: 47 kilohms

AUDIO OUT: 500 mVrms (Typical)

DIGITAL AUDIO OUT (OPTICAL): PCM/Dolby Digital optical signal

PC IN: Analog RGB (D-sub 15-pin): 0.7 Vp-p, 75 ohms, positive

PC AUDIO INPUT: Stereo mini jack 500 mVrms (Typical) Impedance: 47 kilohms

5KDL-26L5000/32L5000

KDL-26L5000/32L5000

KDL-26L5000 KDL-32L5000

in use 75W 135Win standby

8W + 8W 10W + 10WSpeaker/Full Range (2)

mm 40 X 100 mm 34 X 160 mmin 15/8 x 4 in 13/8 x 61/3 in

with standmm 679 x 485 x 222 mm 807 x 557 x 222 mm

in 263/4 x 191/8 x 83/4 in 317/8 x 22 x 83/4 inwithout stand

mm 679 x 435 x 93 mm 807 x 508 x 94 mmin 263/4 x 171/4 x 33/4 in 317/8 x 20 x 33/4 in

wall-mount hole pattern (mm) 200 x 100 200 x 200wall-mount screw size (mm) M4 8-12 M6 8-12

Masswith stand

kg 10.0 kg 12.7 kglbs 22 lbs 1 oz 28 lbs 0 oz

without standkg 8.7 kg 11.4 kglbs 19 lbs 3 oz 25 lbs 3 oz

All measurements are approximations.

Power Consumption

Speaker Output (W)

Dimensions (W x H x D)

Less than 0.5 W

Television systemNTSC American TV StandardATSC (8VSB terrestrial) ATSC compliant 8VSBQAM on cable ANSI/SCTE 07 2000

Channel coverage Analog DigitalTerrestrial 2-69 2-69Cable 1-135 1-135

Antenna75-ohm external terminal for RF inputs

Panel SystemLCD (Liquid Crystal Display) Panel

Display Resolution (horizontal x vertical):1,366 dots x 768 lines

Screen Size (measured diagonally)approx. 26 inches (KDL-26L5000 only)approx. 31.5 inches (KDL-32L5000 only)

Supplied AccessoriesRemote Commander RM-YD028Two Size AA (R6) BatteriesOperating InstructionsQuick Setup GuideWarranty CardSafety and Regulatory BookletAttaching to the Table-Top StandScrews (4)

Optional AccessoriesConnecting CablesSupport Belt KitWall-Mount Bracket SU-WL100 (KDL-26L5000 only) SU-WL500 (KDL-32L5000 only)

6KDL-26L5000/32L5000

KDL-26L5000/32L5000

WARNINGS AND CAUTIONS - ENGLISH

CAUTIONThese servicing instructions are for use by qualifi ed 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 qualifi ed to do so.

CARRYING THE TV

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 identifi ed 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 identifi ed in this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected.

Disconnect all cables when carrying the TV. Carry the TV with the adequate number of people; larger size TVs require two or more people. Placement of the hands carrying the TV is very important for safety and to avoid damage.

7KDL-26L5000/32L5000

KDL-26L5000/32L5000

WARNINGS AND CAUTIONS - FRENCH

ATTENTION!!Ces instructions de service sont lusage du personnel de service qualifi seulement. Pour prvenir le risque de choc lectrique, ne pas faire lentretien autre que celui contenu dans le Mode demploi moins que vous soyez qualifi faire ainsi.

TRANSPORTER LE TLVISEUR

Afi n deviter tout risque delectrocution provenant dun chssis sous tension, un transformateur disolement doit etre utilis lors de tout dpannage. Le chssis de ce rcepteur est directement raccord lalimentation du secteur.

! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont dune 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 limportance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsquun mauvais fonctionnement suspecte.

Dbranchez tous les cbles avant de transporter le tlviseur. Transportez le tlviseur avec le nombre de personnes appropri ; un tlviseur de grande

taille doit tre transport par au moins deux personnes. Lors du transport du tlviseur, lemplacement des mains est trs important pour votre

scurit, ainsi que pour viter de causer des dommages.

U il i d i ( i l 13)

8KDL-26L5000/32L5000

KDL-26L5000/32L5000

SAFETY-RELATED COMPONENT WARNING

There are critical components used in LCD color TVs that are important for safety. These components are identifi ed 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 specifi ed in the electrical parts list to prevent electric shock, fi re, 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 PANELWhen 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

9KDL-26L5000/32L5000

KDL-26L5000/32L5000

The circuit boards used in these models have been processed usingLead Free Solder. The boards are identified by the LF logo locatedclose to the board designation e.g. H1 etc [ see example ]. Theservicing of these boards requires special precautions to be taken asoutlined 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

rebmuntraP retemaiD skrameR91-500-046-7 mm3.0 gK52.002-500-046-7 mm4.0 gK05.012-500-046-7 mm5.0 gK05.022-500-046-7 mm6.0 gK52.032-500-046-7 mm8.0 gK00.142-500-046-7 mm0.1 gK00.152-500-046-7 mm2.1 gK00.162-500-046-7 mm6.1 gK00.1

10KDL-26L5000/32L5000

KDL-26L5000/32L5000

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 Simpsons 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 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).

To Exposed MetalParts on Set

0.15 F

Earth Ground

ACVoltmeter(0.75V)

Trouble Light

AC Outlet BoxOhmmeter

Cold-water Pipe

Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

11KDL-26L5000/32L5000

KDL-26L5000/32L5000

SELF-DIAGNOSTIC FUNCTION

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED indicator will automatically begin to fl ash. The number of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY LED fl ash indicators is listed in the instruction manual for the users 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. Diagnostic Test Indicators

When an error occurs, the STANDBY LED indicator will fl ash a set number of times to indicate the possible cause of the problem. If there is more than one error, the indicator will identify the fi rst of the problem areas.

Control Buttons

Description of LED Indictors

LED LED Type Description

* Lights up in green when the TV set is turned on.

* If LED blinks continuously, this may indicate that the TV needs servicing.

STANDBY LED

PIC OFF/TIMERLED

* Lights up in red when TV is in PC standby mode.

* Lights up in green when Picture Off is activated.* Lights up in orange when the timer is set. When timer is set, this LED remains lit even when the TV is turned off.

POWER LED

Green or OrangeLED

Green LED

Red LED

2 times

5 times

LED ON 0.3 sec.LED ON 0.3 sec.

LED OFF 0.3 sec.LED OFF 0.3 sec. LED OFF3 sec.

12KDL-26L5000/32L5000

KDL-26L5000/32L5000

LED Indicators

Diagnostic ItemDescription

Number of times STANDBY lamp

flashesPossible Location

Main Power 2 times G2BE Board

Low B error3 times

G2BE BoardA Board

T-CON power error 5 times LCD Panel

Backlight error6 times

LCD PanelG2BE Board

Audio abnormal detection8 times

A BoardSpeaker(s)

Viewing the Self Check Diagnostic List

Viewing the Self Check Diagnostic List

1. TV must be in standby mode. (Power off).2. Press the following buttons on the Remote Commander within a second of each other:

DISPLAY Channel 5 Volume - TV POWER TV POWER . The Self Check list displays. This differs from accessing Service Adjustments.

Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a 0. NOTE: If the Service Menu display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display.

SELF CHECK

002 MAIN_POWER 001 1 indicates an error was detected003 LOW B ERROR 1 000 0 indicates no error was detected005 T-CON POWER ERROR 000006 BACKLIGHT ERROR 000008 AUDIO ABNORMAL DETECTOR 000

00001 00027 00009

Total Panel Hours Total Hours of Operation Boot Count [Menu]Exit

BACK

3. To exit Self Check display, turn the power off. Press [Menu] Exit.

Clearing the Self Check Diagnostic List

1. In Service Mode, press the Channel 8 Channel 0 .

13KDL-26L5000/32L5000

KDL-26L5000/32L5000

1-1. REAR COVER REMOVAL

SECTION 1: DISASSEMBLY

1 Remove 12 screws from Rear Cover2 Remove 1 screw from Side Jack position3 Remove 2 screws from Terminal position4 Remove 2 screws from Rear Cover

1-2. SWITCH UNIT REMOVAL (CONTAINS H1 BOARD)1 Slide out Switch unit from Bezel2 Disconnect 1 connector from Switch Unit (Contains H1 Board)

1

2

3

Rear Cover

Bezel

4

Bezel

Switch Unit (Contains H1 Board)

1

2

HISTORY INFORMATIONFRONT COVERTable of ContentsSpecificationsWarnings and Cautions - EnglishWarnings and Cautions - FrenchSafety-Related Component WarningSafety Check-OutSelf-Diagnostic FunctionSECTION 1: DISASSEMBLY1-1. Rear Cover Removal1-2. Switch Unit Removal (Contains H1 Board)1-3. A Board and G2BE (Power Supply) Board Removal1-4. Table-Top Stand Assembly and Under Cover Removal1-5. Loudspeaker Removal1-6. Brackets and Spine Removal1-6-1. Brackets and Spine Removal (KDL-26L5000 Only)1-6-2. Brackets and Spine Removal (KDL-32L5000 Only)1-7. H2 Board and LCD Panel Removal1-7-1. Cleaning the LCD Panel1-8. Balancer (MT Inverter) Board Removal (KDL-26L500 Only)1-9. Balancer (MT Inverter) Board Removal (KDL-32L500 Only)Wire DressingSECTION 2: SERVICE ADJUSTMENTS2-1. Viewing Service Adjustment Data2-2. Accessing Service Adjustment Mode2-3. Resetting to Factory DefaultsSECTION 3: DIAGRAMS3-1. Circuit Boards Location3-2. Printed Wiring Boards and Schematic Diagrams Information3-3. Block Diagram3-4. Schematics and Supporting InformationA Board Schematic Diagram (1 of 17)A Board Schematic Diagram (2 of 17)A Board Schematic Diagram (3 of 17)A Board Schematic Diagram (4 of 17)A Board Schematic Diagram (5 of 17)A Board Schematic Diagram (6 of 17)A Board Schematic Diagram (7 of 17)A Board Schematic Diagram (8 of 17)A Board Schematic Diagram (9 of 17)A Board Schematic Diagram (10 of 17)A Board Schematic Diagram (11 of 17)A Board Schematic Diagram (12 of 17)A Board Schematic Diagram (13 of 17)A Board Schematic Diagram (14 of 17)A Board Schematic Diagram (15 of 17)A Board Schematic Diagram (16 of 17)A Board Schematic Diagram (17 of 17)G2BE Schematic DiagramH1 Board Schematic DiagramH2 Board Schematic DiagramSECTION 4: EXPLODED VIEWS4-1. Rear Cover Assembly and Table-Top Stand Assembly4-2. Chassis4-3. Bezel Assembly and LCD Panel4-4. Screw LegendAccessories and PackingMiscellaneousRemote CommanderAPPENDIX A: ENCRYPTION KEY COMPONENTSTiled Schematic Note