Sony KDL-40BX450 Schematic

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

Self Diagnosis

Supported model

SERVICE MANUAL

CONFIDENTIAL

ELECTRICAL SERVICE MANUAL

INTERNAL ONLY

ORIGINAL MANUAL ISSUE DATE: 2/2012

REVISION DATE SUBJECT

2/17/2012 Original Manual Release Date

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CHASSIS

LEVEL

CONFIDENTIAL

3

9-883-884-51

LCD DIGITAL COLOR TV

LEVEL

CONFIDENTIAL

3

SERVICE MANUAL

MODEL COMMANDER DESTINATION

KDL-40BX450 RM-YD080 CND/LA/MX/US

KDL-40BX451 RM-YD080 CND/MX

KDL-40EX640 RM-YD075 CND/US

KDL-46BX450 RM-YD080 CND/LA/MX/US

KDL-46BX451 RM-YD080 MX

KDL-46EX640 RM-YD075 CND/US

KDL-55EX640 RM-YD075 CND/US/MX

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CHASSIS

9-883-884-51

LCD DIGITAL COLOR TV

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CAUTIONS AND WARNINGS

CAUTION

These servicing instructions are for use by quali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 qualied to do so.

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 identied with

shading and

with the part number specied in the parts list to prevent electric shock, 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 warranty.

!

mark on the schematic diagrams and the parts list. It is essential that these critical parts be replaced only

ATTENTION!!

Ces instructions de service sont à l’usage du personnel de service qualié 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 qualié faire

ainsi.

ALERTE!!

An 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 identies par une trame et par une marque

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 identies dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais

fonctionnement suspecte.

!

sur les schemas de principe, les vues explosees et

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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.

To avoid damaging the LCD panel:

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 (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 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.

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.

AZ3FK 5

SAFETY CHECK-OUT

To Exposed Metal Parts on Set

0.15 µF

Earth Ground

AC Voltmeter (0.75V)

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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 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.

1. A commercial leakage tester. Follow the

manufacturers’ instructions provided with the

tester.

2. A battery-operated AC milliammeter.

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)

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 uorescent 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)

AZ3FK 6

Trouble Light

AC Outlet Box

Figure B. Checking for earth ground.

Th

e 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

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 :

rebmuntraP retemaiD skrameR

91-500-046-7mm3.0gK52.0

02-500-046-7mm4.0gK05.0

12-500-046-7mm5.0gK05.0

22-500-046-7mm6.0gK52.0

32-500-046-7mm8.0gK00.1

42-500-046-7mm0.1gK00.1

52-500-046-7mm2.1gK00.1

62-500-046-7mm6.1gK00.1

AZ3FK

Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees celsius. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.

AZ3FK 7

AZ3FK

SECTION 1: DIAGRAMS

1-1. PRINTED CIRCUIT BOARDS AND SCHEMATIC DIAGRAMS INFORMATION

REFERENCE INFORMATION

All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less are not indicated except for electrolytics and tantalums.

All electrolytics are in 50V unless otherwise specied.

All resistors are in ohms. kΩ=1000Ω, MΩ=1000kΩ

Indication of resistance, which does not have one for rating electrical power, is as follows: Pitch : 5mm Rating electrical power :

1

/4 W in resistance, 1/

W and 1/

10

W in chip resistance.

16

1

/4 W

: nonammable resistor

: fusible resistor

: internal component

: panel designation and adjustment for repair

: earth ground

RESISTOR : RN METAL FILM : RC SOLID : FPRD NONFLAMMABLE CARBON : FUSE NONFLAMMABLE FUSIBLE : RW NONFLAMMABLE WIREWOUND : RS NONFLAMMABLE METAL OXIDE : RB NONFLAMMABLE CEMENT : ADJUSTMENT RESISTOR

COIL : LF-8L MICRO INDUCTOR

Terminal name of semiconductors in silk screen printed circuit ( )

Device Printed symbol Terminal name

Transistor

1

*

: earth-chassis

Transistor

2

All variable and adjustable resistors have characteristic curve B, unless

3

Diode

Cathode

otherwise noted.

Readings are taken with a color-bar signal input.

Readings are taken with a 10MΩ digital multimeter.

Voltages are DC with respect to ground unless otherwise noted.

Voltage variations may be noted due to normal production tolerances.

All voltages are in V.

S : Measurement impossibility.

: B+line.

: B-line. (Actual measured value may be different).

: signal path. (RF)

Circled numbers are waveform references.

The components identied by shading and ! symbol are critical for safety. Replace only with part number specied.

The symbol indicates a fast-blow fuse and is displayed on the component side of the board. Replace only with fuse of the same rating as marked.

Les composants identies per un trame et une marque ! sont critiques pour la

Diode

5

Diode

6

Diode

7

8

Diode

9

Diode

10

Diode

11

Diode

12

Transistor

13

(FET)

Transistor

14

(FET)

Transistor

15

(FET)

Transistor

16

Anode

Anode Cathode

Anode

Anode Anode

Cathode

Anode Anode

Cathode

4

securite. Ne les remplacer que par une piece portant le numero specie.

Transistor

Le symbole indique une fusible a action rapide. Doit etre remplace par une fusible de meme yaleur, comme maque.

NOTE: The components identied by a red outline and a mark contain condential information. Specic instructions must be adhered to whenever these components

are repaired and/or replaced. See Appendix A: Encryption Key Components in the back of this manual.

17

Transistor

18

Transistor

19

Transistor

20

Transistor

21

Transistor

22

Transistor

23

Discrete semiconductor

–

(Chip semiconductors that are not actually used are included.)

AZ3FK 8

CAPACITOR : TA TANTALUM : PS STYROL : PP POLYPROPYLENE : PT MYLAR : MPS METALIZED POLYESTER : MPP METALIZED POLYPROPYLENE : ALB BIPOLAR : ALT HIGH TEMPERATURE : ALR HIGH RIPPLE

Collector

Base

Collector

Base

Cathode

Common

Drain

C1

E1

C1

E2

C2

B1

E2

C2

Emitter

(NC)

Cathode

Anode

Cathode

Cathode Anode Anode

Source

Gate

Source

Gate

Source Drain Gate

Emitter Collector Base

B1 E1C2

B2 C1E2

B2 E2

B1 C2

B2 E2C1

B1 C2E1

B2 E2

B1 C2E1

B1 E1

C1(B2)

(B2)

E1

E2

C2C1

(B2)

E1

B1

C1

Anode

Circuit

D

G

D

S

B1

D

G

S

D

G

S

C2B2C1

E1

E2

C2B2C1

E1

E2

E2B2E1

C1

C2

C2C1(B2)

E2

E2 E2E1(B2)

C1

C2 C2E1(B2)

C1

C2

Ver.1.6

G

1-2. BLOCK DIAGRAM

AZ3FK

MT5389 (BX45X series) MT5396 (EX64X series)

AZ3FK 9

1-3. CONNECTOR DIAGRAMS

Panel

AZ3FK

AC

CN4001

CN201

CN4002

CN4003

CN8001

Main board

Power Board

TCON Board

Key Pad board

IR board

AZ3FK 10

1-4. SCHEMATICS AND SUPPORTING INFORMATION

A BOARD SCHEMATIC (BX45X SERIES)

KDL-40/46BX450 AND KDL-40/46BX451 ONLY

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |

A BOARD SCHEMATIC AND PCB NOT AVAILABLE

A

—

B

—

C

—

AZ3FK

D

—

E

—

F

—

G

—

AZ3FK 11

A BOARD SCHEMATIC (EX64X SERIES)

1

2

3

4

5

6

7

8

A A

B B

C

D

E

F

G

H

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

____ OF ____

PWB :

DESCRIPTION :

1

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

19

A-Board

Friday, January 13, 2012

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

PWB :

DESCRIPTION :

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

Friday, January 13, 2012

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

PWB :

DESCRIPTION :

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

Friday, January 13, 2012

A BOARD SCHEMATIC DIAGRAM (1 OF 19) - KDL-40/46/55EX640 ONLY

AZ3FK

AZ3FK 12

A BOARD SCHEMATIC DIAGRAM (2 OF 19)

1

2

3

4

5

6

7

8

A A

B B

C

D

E

F

G

H

PSU_BL_PWM

PSU_BL_ERR#

PSU_BL_EN#

FB_1.2V

UGATE

LGATE

12V_MOS

FB_1.2V

BST

SW

PSU_12V

SW

LGATE

FB_1.2V

BST

UGATE

PSU_AC_DET#

SYS_3.3V

PSU_EN#

PSU_BL_PWM

PSU_BL_EN#

PSU_BL_ERR#

PSU_AC_DET#

SB_3.3V

PSU_TC_EN#

SB_3.3V

PSU_EN# SB_3.3V

AC_DET#

BL_PWM [16]

PWM_5V[5,15]

BL_EN# [18]

BL_ERR# [18]

AC_DET# [16,19]

PWM_1.2V [11]

SYS_3.3V[5,7,11,12,14,15,16,17,18,19,20]

SB_3.3V [6,16,18,19]

TCON_12V [21]

PANEL_EN# [16]

AUD_12V [19]

PSU_12V [5]

OPWRSB [16]

ORESET#[16]

PWM_5V_EN# [5]

MRESET# [16]

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

____ OF ____

PWB :

DESCRIPTION :

2

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

19

Friday, January 13, 2012

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

PWB :

DESCRIPTION :

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

Friday, January 13, 2012

Drawn :

Checked

Approved

File Name :

PART NO.

Date :

LY.REV :

REV.

SHEET

PWB :

DESCRIPTION :

10-20-2005

297005040100.BRD

00

297005040100.DSN

10-20-2005

2970050401-SC

Friday, January 13, 2012

AC_DET#

H

L

AC DETEDTION OUTPUT.

AC Voltage

AC Off. (<=20mS)

AC Existence.

BL_PWM

1%

100%

BackLight DIMMER CONTROL.

MINIMUM

DIMMER

BL_EN# Initial:L

H

L

BACKLIGHT ON/OFF CONTROL.

PSU BACKLIGHT

ON

OFF

BL_ERR#

H

L

BACKLIGHT ERROR OUTPUT.

BACLKLIGHT

ERROR

NORMAL

F=180Hz.

MAXIMUM

PANEL_EN# Initial:L

H

L

TCON POWER ON/OFF CONTROL.

PANEL TCON POWER

ON

OFF

AC_DET#

PSU_EN#

HIGH

AC OFFAC ON

Turn on Turn off

LOW

U201 APW8720KE-TRG

BOOT

1

UGATE

2

GND

3

LGATE/OCSET

4

VCC

5

FB

6

COMP

7

PHASE

8

C206

0.1U_10V_K

C206

0.1U_10V_K

12

TP201TP201

1

B

C

E

Q207 2SC3052-T112-1F

B

C

E

Q207 2SC3052-T112-1F

1

32

R259

4.7K_J

R259

4.7K_J

12

C251

0.1U_10V_K

C251

0.1U_10V_K

12

H212 hole_tbo89x208do39x158

1

B

C

E

Q208 2SC3052-T112-1F

B

C

E

Q208 2SC3052-T112-1F

1

32

TP209TP209

1

C216

0.1U_25V_K

C216

0.1U_25V_K

1 2

TP205TP205

1

R210 100_J

1

2

R212 10K_J

12

R206 10K_F

12

TP211TP211

1

TP207TP207

1

H209 hole_tbo89x208do39x158H209 hole_tbo89x208do39x158

1

C203

0.1U_25V_K

C203

0.1U_25V_K

12

R261 1K_J

12

R213

2.2_F

R213

2.2_F

12

R201 100_J

1

2

B

C

E

Q201 2SC3052-T112-1F

B

C

E

Q201 2SC3052-T112-1F

1

32

C215 NC/0.1U_10V_K

NC

C215 NC/0.1U_10V_K

NC

12

TP213TP213

1

R236 10K_J

12

C208

0.1U_10V_K

C208

0.1U_10V_K

12

H204 hole_tbc394d158_ptbH204 hole_tbc394d158_ptb

1

C270 4700P_25V_K

12

R205 100_J

1 2

C254 NC/1U_10V_K

NC

C254 NC/1U_10V_K

NC

12

C217 270P_50V_J

12

C222 4700P_25V_K

12

C212 22U_25V_M

12

C218

22U_6.3V_M

C218

22U_6.3V_M

12

C205

0.1U_25V_K

C205

0.1U_25V_K

12

R255 10K_J

12

C202

0.1U_10V_K

C202

0.1U_10V_K

12

C220

22U_6.3V_M

C220

22U_6.3V_M

12

C256 22U_16V_M

12

H203 hole_tbc394d158_ptb_bH203 hole_tbc394d158_ptb_b

1

TP208TP208

1

R215 100_J

1 2

TP203TP203

1

TP204TP204

1

TP206TP206

1

R238

4.02K_F

R238

4.02K_F

12

C211 1500P_50V_K

12

C209 1U_10V_K

12

C221

0.1U_10V_K

C221

0.1U_10V_K

12

TP212TP212

1

C213 22U_25V_M

12

R266 NC/47K_J

NCR266

NC/47K_J

NC

1

2

R217 0_J

1 2

R256 10K_J

1

2

G

S

D

Q203 AOD452AL

G

S

D

Q203 AOD452AL

1

23

R218

38.3K_F

R218

38.3K_F

12

H210 hole_tbo89x208do39x158H210 hole_tbo89x208do39x158

1

R204

2.2_J

R204

2.2_J

1

2

C262 1U_10V_K

12

R214

57.6K_F

R214

57.6K_F

12

C207

0.1U_10V_K

C207

0.1U_10V_K

12

B

C

E

Q209 2SA1235A-T112-1F

B

C

E

Q209 2SA1235A-T112-1F

2

3

1

R202 10K_J

1

2

R258

4.7K_J

R258

4.7K_J

12

R257 1K_J

12

L205 1UH_14.1A_0.00781R

1 2

C214 22U_25V_M

12

H207 hole_tbc394d158_ptb_b

1

H202 hole_tbc394d158_ptb_bH202 hole_tbc394d158_ptb_b

1

H208 hole_tbo89x208do39x158H208 hole_tbo89x208do39x158

1

B

C

E

Q210 2SA1235A-T112-1F

B

C

E

Q210 2SA1235A-T112-1F

23

1

R208 10K_J

1 2

TP220TP220

1

K_V52_U1.0052C K_V52_U1.0052C

12

TP210TP210

1

L201

1.3UH_8.2A_0.016R

L201

1.3UH_8.2A_0.016R

1 2

TP202TP202

1

G

S

D

Q202 AOD452AL

G

S

D

Q202 AOD452AL

1

23

R253 47K_J

1 2

R260

4.7K_J

R260

4.7K_J

12

R216

4.02K_F

R216

4.02K_F

1 2

C210 10P_50V_J

12

C201

10U_10V_M

C201

10U_10V_M

12

R240 100_J

1 2

R209 NC/4.7K_J

NC R209

NC/4.7K_J

NC

1

2

CN201

HEADER CONN_15P

JWT_A2512WR0-15P

CN201

HEADER CONN_15P

JWT_A2512WR0-15P

1 2 3 4 5 6

9 10 11 12 13 14 15

7 8

R254 47K_J

12

C204

0.1U_25V_K

C204

0.1U_25V_K

12

C234

22U_6.3V_M

C234

22U_6.3V_M

12

C219

0.1U_10V_K

C219

0.1U_10V_K

12

D201 MEK10-04-D1H-G

2

1

H206 hole_tbc394d158_ptbH206 hole_tbc394d158_ptb

1

R203 100_J

1 2

H211 hole_tbo89x208do39x158H211 hole_tbo89x208do39x158

1

C257

0.01U_10V_K

C257

0.01U_10V_K

12

R239 NC/1K_J

NCR239

NC/1K_J

NC

1

2

R211 0_J

1

2

C249

22U_6.3V_M

C249

22U_6.3V_M

12

A-Board

AZ3FK

AZ3FK 13

Sony KDL-40BX450 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

CAUTIONS AND WARNINGS

SAFETY CHECK-OUT

SECTION 1: DIAGRAMS

1-1. PRINTED CIRCUIT BOARDS AND SCHEMATIC DIAGRAMS INFORMATION

1-2. BLOCK DIAGRAM

1-3. CONNECTOR DIAGRAMS

1-4. SCHEMATICS AND SUPPORTING INFORMATION

A BOARD SCHEMATIC (BX45X SERIES)

A BOARD SCHEMATIC (EX64X SERIES)