1.0 1/13/2011 No revisions or updates are applicable at this time.
LCD Digital Color TV
9-883-856-01
SERVICE MANUAL
AZ2-TK Chassis
Self Diagnosis
Supported model
LCD Digital Color TV
9-883-856-01
MODEL LIST
MODEL COMMANDER DESTINATION MODEL COMMANDER DESTINATION
KDL-22BX325 RM-YD066 CHILE
KDL-32BX326 RM-YD066 CHILE
KDL-22BX325 RM-YD066 VENEZUELA
KDL-32BX325 RM-YD066 CHILE
KDL-32BX325 RM-YD066 VENEZUELA
KDL-32BX326 RM-YD066 VENEZUELA
KDL-32BX425 RM-YD066 CHILE
KDL-40BX425 RM-YD066 CHILE
KDL-40BX425 RM-YD066 VENEZUELA
TABLE OF CONTENTS
Warnings and Cautions ..................................................................................................................................................................1
SEC 1. Disassembly/Part Number Information ..........................................................................................................................11
1-1. Table-Top Stand Assembly Removal .............................................................................................................................11
1-2. Rear Cover and Speakers Removal ..............................................................................................................................12
1-2-1. KDL-22BX325 Only ................................................................................................................................................................. 12
1-3. A Board, LIPS22/GT32/GT40 (Power) Board and LCD Panel Removal .......................................................................14
1-3-1. KDL-22BX325 Only ................................................................................................................................................................. 14
1-3-2. KDL-32BX325/32BX326/32BX425 Only ................................................................................................................................. 15
1-3-3. KDL-40BX425 Only ................................................................................................................................................................. 16
1-4. Cleaning the LCD Panel Assembly................................................................................................................................17
1-6-1. KDL-22BX325 Only ................................................................................................................................................................. 17
1-7. Accessories and Packing ..............................................................................................................................................18
1-10-1. KDL-22BX325 Only ................................................................................................................................................................. 19
1-10-2. KDL-32BX325/32BX326 Only ................................................................................................................................................. 20
1-10-3. KDL-32BX425 Only ................................................................................................................................................................. 21
1-10-4. KDL-40BX425 Only ................................................................................................................................................................. 22
SEC 2. Service Adjustments ........................................................................................................................................................23
3-1-1. KDL-22BX325 Only ................................................................................................................................................................. 24
These 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
• 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.
KDL-22BX325 Only
KDL-32BX325/32BX326/32BX425/40BX425 Only
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 exploded views are critical for safe operation.
Replace all components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. It is
essential that all critical parts be replaced only with the part number specifi ed in this manual to prevent electric shock, fi re, or other hazard.
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.
NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and
labor guarantee.
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 1
SAFETY-RELATED WARNING
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 (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.
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 2
SAFETY CHECK-OUT
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmete
r
(0.75V)
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.
Figure A. Using an AC voltmeter to check AC leakage.
7. Check the antenna terminals, metal trim, “metallized” knobs, screws, and
all other exposed metal parts for AC leakage. Check leakage as described
below.
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 3
LEAKAGE TEST
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
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 batteryoperated 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
SAFETY CHECK-OUT
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw
on most AC outlet boxes is also at earth ground.
Figure B. Checking for 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).
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 4
SELF DIAGNOSIS FUNCTIONS
y
SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to ash. The number
of times the LED ashes translates to a probable source of the problem. A denition of the STANDBY LED ash 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.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY LED will ash 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 rst 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 .
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be conrmed, it is possible to
bring up past occurrences of a failure for conrmation on the Self Check diagnostic screen:
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:
SELF DIAGNOSIS FUNCTIONS
DISPLAY
* NOTE: This differs from accessing Service Adjustments Mode (Volume +)
Channel 5 Volume -
SELF CHECK
Back<<
002MAIN_POWE001 001 indicates an error was detected
003AUD_PORT000 000 indicates no error was detected
003DC_ALERT000
004BALANCE
005TCON_ERR000
005HFR_ERR000
005P_ID_ER
005PANEL_POWE000
006BACKLITE000
007TEMP_ERR000
000000001000000[Menu] Exit
POWER
000
000
.
Panel Operation Time by Hour (max 99999)
Boot Count (max 99999)
Total Operation Time by Hour (max 99999)
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 7
SELF DIAGNOSIS FUNCTIONS
CLEARING THE SELF CHECK DIAGNOSTIC LIST
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen after you have
completed the repairs to be sure you have cleared the result display to “0”.
1. To clear the Error history and Error count: Press the Channel 8 Channel 0.
2. To clear the Panel operation time: Press the Channel 7 Channel 0.
EXITING THE SELF CHECK DIAGNOSTIC SCREEN
1. To exit the Self Diagnostic screen, turn off the power to the TV by pressing the POWER button on the remote or the POWER button on
the TV.
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 8
SPECIFICATIONS
Información de licencias
Sistema
Sistema de TVAnálogo: NTSC / PAL-M / PAL-N
Cobertura de canalesVHF: 2-13
Sistema del panelPanel LCD (pantalla de cristal líquido)
Salida de bocinas
(excepto KDL-22BX325)
Salida de bocinas
(sólo KDL-22BX325)
Tomas de entrada/salida
CABLE/ANTENNATerminal externo de 75-ohm para entrada de señal de radiofrecuencia
VIDEO IN 1/2VIDEO: 1 Vp-p, 75 ohm no equilibrado, sincronización negativa
Audio: PCM lineal de dos canales 32; 44,1 y 48 kHz; 16; 20 y 24 bits, Dolby Digital
Entrada de PC (consulte la página 47)
Salida de audio óptica digital (PCM/Dolby Digital)
Consulte la tabla de referencia de la señal de entrada de la PC para PC y HDMI IN en la página 47.
Macintosh es una marca comercial de Apple Inc., registrada en
EE. UU. y otros países.
HDMI, el logotipo de HDMI y High-Definition Multimedia
Interface son marcas comerciales o marcas comerciales registradas
de HDMI Licensing, LLC en los Estados Unidos y en otros países.
Fergason Patent Properties, LLC:
N° de patente de EE.UU. 5.717.422
N° de patente de EE.UU. 6.816.141
Fabricado bajo licencia de Dolby Laboratories. Dolby y el símbolo
de la doble D son marcas comerciales de Dolby Laboratories.
Blu-ray Disc es una marca comercial.
“BRAVIA”, , BRAVIA Sync, y son marcas
comerciales o marcas registradas de Sony Corporation.
“PlayStation” es una marca comercial registrada y “PS3” es una
marca comercial de Sony Computer Entertainment Inc.
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 9
Nombre del modelo KDL-40BX42532BX425
Corriente y otras especificaciones
Requisitos de alimentación110-240 V ca 50/60 Hz
Consumo energético
en uso
en esperaMenos de 1,0 W
Tamaño de pantalla
(medido diagonalmente)
Resolución del monitor 1.920 puntos (hor izontales) × 1.080 líneas (verticales)
Accesorios opcionalesCables de conexión / Kit de correa de soporte / Soporte de montaje mural: SU-WL500
sin soporte (mm)988 × 600 × 94800 × 496 × 91
sin soporte (kg)13,39,6
Control remoto RM-YD066 (1) / Pilas tipo AA (2) / Manual de instrucciones (1) / Guía de
configuración rápida (1) / Suplemento (para evitar caídas) (1) / Manual de seguridad (1) / Licencia del
software (1) / Guía de ensamble de la base de soporte (1)
177 W122 W
4031,5 (32 clase)
300 × 300200 × 200
M6 (longitud: consulte el diagrama en la página 49)
/ Soporte de sobremesa (1 juego)
SPECIFICATIONS
Nombre del modelo KDL-32BX326
32BX325
22BX325
Corriente y otras especificaciones
Requisitos de alimentación110-240 V ca 50/60 Hz
Consumo energético
en uso
en esperaMenos de 1,0 W
Tamaño de pantalla
(medido diagonalmente)
Resolución del monitor 1.366 puntos (horizontales) × 768 líneas (verticales)
Accesorios opcionalesCables de conexión / Kit de correa de soporte / Soporte de montaje mural: SU-WL100 (sólo
• La disponibilida d de los accesorios opcionales dependerá de las existencias.
• El diseño y las especificaciones están sujetos a cambios sin previo aviso.
sin soporte (mm)800 × 496 × 91551 × 363 × 61
M6 (longitud: consulte el diagrama en la página 49) M4 (longitud: consulte el diagrama en la página 49)
sin soporte (kg)9,65,1
Control remoto RM-YD066 (1) / Pilas tipo AA (2) / Manual de instrucciones (1) / Guía de
configuración rápida (1) / Suplemento (para evitar caídas) (1) / Manual de seguridad (1) / Licencia del
software (1) / Guía de ensamble de la base de soporte (1) / Soporte de sobremesa (1 juego)
KDL-22BX325), SU-WL500 (excepto KDL-22BX325)
122 W50 W
31,5 (32 clase)21,6 (22 clase)
200 × 200100 × 100
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 10
SEC 1. DISASSEMBLY/PART NUMBER INFORMATION
1-1. TABLE-TOP STAND ASSEMBLY REMOVAL
Remove screws from Table-Top Stand Assembly
A
3 from KDL-22BX325 Only
4 from All Models except KDL-22BX325
Lift up TV set to detach from Table-Top Stand Assembly
B
Components not identied by a part number or
description are not stocked because they are seldom
required for routine service.
NOTE: The components identied by shading
and ! mark are critical for safety. Replace only
with part number specied.
A
B
The component parts of an assembly are indicated by the
reference numbers in the far right column of the parts list
and within the dotted lines of the diagram.
NOTE: The components identied by a red outline and a mark contain
condential information. Specic 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.
1
2
3
Items marked with an asterisk are not stocked since
*
they are seldom required for routine service. Expect
some delay when ordering these components.
Gently place the TV set face down onto a soft cloth
C
Soft Cloth
C
REF. NO. PART NO. DESCRIPTION [ASSEMBLY INCLUDES]REF. NO. PART NO. DESCRIPTION [ASSEMBLY INCLUDES]
1 X-2580-960-1 BASE (S3B) ASSEMBLY
(KDL-22BX325 ONLY)
1 X-2580-961-1 BASE (M3B) ASSEMBLY
(KDL-32BX325/32BX425 ONLY)
1 X-2546-085-2 BASE (M5B) ASSEMBLY
(KDL-32BX326 ONLY)
1 X-2580-962-1 BASE (ML3B) ASSEMBLY
(KDL-40BX425 ONLY)
1-3. A BOARD, LIPS22/GT32/GT40 (POWER) BOARD AND LCD PANEL REMOVAL
1-3-1. KDL-22BX325 ONLY
Remove 4 screws and disconnect 4 connectors from A Board to detach from Main Frame
A
Release 2 clips and slide-out Side Jack Bracket to detach from A Board
B
Remove 4 screws and disconnect 6 connectors from LIPS22 (Power) Board to detach from
C
Main Frame
Remove 2 screws from Main Bracket to detach from Bezel
D
Remove 4 screws from Main Frame to detach from LCD Panel
E
Remove 2 screws from Main Frame to detach from Bezel
F
Carefully Lift up LCD Panel to remove from Bezel
G
G
F
NOTE: The components identied by shading
and ! mark are critical for safety. Replace only
with part number specied.
NOTE: The components identied by a red outline and a mark contain
condential information. Specic 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.
151
152
Main
Frame
153
154
155
B
A
E
C
D
REF. NO. PART NO. DESCRIPTION [ASSEMBLY INCLUDES]REF. NO. PART NO. DESCRIPTION [ASSEMBLY INCLUDES]
151 4-276-523-01 BEZEL (GT22)
152 NA LCD PANEL
FOR ALL LCD PANEL PART NUMBER INFORMATION
REFER TO THE LCD PANELS SERVICE MANUAL
153 4-264-268-01 COVER, IO JACK
154 1-857-923-11 A BOARD, COMPLETE
After replacing the Main Board or the LCD Panel, you must update
the software to the latest version. Instructions for updating the
software are included with the software package on the
Sony Electronics Service Information website
155 1-857-927-11 LIPS22 (POWER) BOARD, COMPLETE
KDL-22BX325/32BX325/32BX326/32BX425/40BX425 14
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