Sony XBR-52LX905 User manual

LCD DIGITAL COLOR TV
SERVICE MANUAL AZ1-H CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION
9-888-340-51
XBR-52LX905 RM-YD042 ARGENTINA
XBR-52LX905 RM-YD042 LATIN AMERICA
XBR-60LX905 RM-YD042 ARGENTINA
XBR-60LX905 RM-YD042 LATIN AMERICA
LEVEL 3
CONFIDENTIAL
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 6/2010
REVISION DATE SUBJECT
6/2010 No revisions or updates are applicable at this time.
CONFIDENTIAL
ELECTRICAL SERVICE MANUAL
INTERNAL ONLY

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XBR-52LX905/60LX905
XBR-52LX905/60LX905
TABLE OF CONTENTS
SECTION TITLE PAGE
Warnings and Cautions - English ...............................................................................................................................................................................3
Safety-Related Component Warning..........................................................................................................................................................................5
Safety Check-Out .......................................................................................................................................................................................................7
SECTION 1: DIAGRAMS...................................................................................................................................................................................................8
1-1. Circuit Boards Location ...................................................................................................................................................................................... 8
1-2. Printed Wiring Boards and Schematic Diagrams Information ............................................................................................................................ 8
1-3. Block Diagram..................................................................................................................................................................................................10
1-4. Schematics and Supporting Information .......................................................................................................................................................... 11
BUHS Board Schematic Diagram (1 of 18)...................................................................................................................................................... 11
BUHS Board Schematic Diagram (2 of 18)...................................................................................................................................................... 12
BUHS Board Schematic Diagram (3 of 18)...................................................................................................................................................... 13
BUHS Board Schematic Diagram (4 of 18)...................................................................................................................................................... 14
BUHS Board Schematic Diagram (5 of 18)...................................................................................................................................................... 15
BUHS Board Schematic Diagram (6 of 18)...................................................................................................................................................... 16
BUHS Board Schematic Diagram (7 of 18)...................................................................................................................................................... 17
BUHS Board Schematic Diagram (8 of 18)...................................................................................................................................................... 18
BUHS Board Schematic Diagram (9 of 18)...................................................................................................................................................... 19
BUHS Board Schematic Diagram (10 of 18).................................................................................................................................................... 20
BUHS Board Schematic Diagram (11 of 18) ....................................................................................................................................................21
BUHS Board Schematic Diagram (12 of 18).................................................................................................................................................... 22
BUHS Board Schematic Diagram (13 of 18).................................................................................................................................................... 23
BUHS Board Schematic Diagram (14 of 18).................................................................................................................................................... 24
BUHS Board Schematic Diagram (15 of 18).................................................................................................................................................... 25
BUHS Board Schematic Diagram (16 of 18).................................................................................................................................................... 26
BUHS Board Schematic Diagram (17 of 18).................................................................................................................................................... 27
BUHS Board Schematic Diagram (18 of 18).................................................................................................................................................... 28
GE4A Board Schematic Diagram (1 of 2) (XBR-60LX905 ONLY) ...................................................................................................................30
GE4A Board Schematic Diagram (2 of 2) (XBR-60LX905 ONLY) ...................................................................................................................31
GE4B Board Schematic Diagram (1 of 2) (XBR-52LX905 ONLY) ...................................................................................................................32
GE4B Board Schematic Diagram (2 of 2) (XBR-52LX905 ONLY) ...................................................................................................................33
HEM Board Schematic Diagram ......................................................................................................................................................................35
HLR Board Schematic Diagram ....................................................................................................................................................................... 37
SECTION 2: ELECTRICAL PARTS LIST........................................................................................................................................................................39
APPENDIX A: ENCRYPTION KEY COMPONENTS..................................................................................................................................................... A-1

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XBR-52LX905/60LX905
XBR-52LX905/60LX905
WARNINGS AND CAUTIONS - ENGLISH
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.
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.
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 identi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 identied in this manual. Follow these procedures whenever critical components are replaced or improper operation is
suspected.
ABOUT THE BATTERY OF THE 3D GLASSES
Replace only with the same or equivalent type of batteries. Using incorrect replacement batteries can lead to an explosion.

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XBR-52LX905/60LX905
XBR-52LX905/60LX905
WARNINGS AND CAUTIONS - ENGLISH
HANDLING THE GLASS ASSEMBLY
Use the following precautionary guidelines when replacing the Glass Assembly to avoid material degradation or screen coating
degradation, and ensure that dust, dirt, or ngerprints are not left between the glass and the LCD panel.
RReplace the Glass Assembly in a brightly lit and clean room.
RPlace the replacement Glass Assembly on a dark cloth to make it easier to see dust
and dirt particles.
R Wearantistaticglovestoavoidleavingngerprintsontheglass.
RUse a dry, soft MicroFiber cloth, such as a lint free polishing cloth, to gently wipe the
glass to remove any dust or dirt particles.
RIf the glass needs additional cleaning, slightly moisten the cloth with a diluted mild
soap or mild detergent solution, or use a compressed air duster (spray can type).
R After replacing the Glass Assembly, verify there are no dark spots or nger prints
visible on the screen.
CAUTION
WDo 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.
WDo Not use any cleaning product containing alkaline/acid cleaner, scouring powder, or
volatile solvent, such as alcohol, ammonia, benzene, thinner or insecticide. Using any
of these harsh cleaners may result in permanent damage to the screen.
WDo Not spray water or detergent directly onto the TV screen . If liquid drips into the
bottom of the screen it may cause a failure.

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XBR-52LX905/60LX905
XBR-52LX905/60LX905
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
!
mark on the schematic diagrams and the electrical parts list. It is essential that these critical parts be replaced only with the part number
specied in the electrical 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 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:
Údo not press on the panel or frame edge to avoid the risk of electric shock.
Údo not scratch or press on the panel with any sharp objects.
Ú do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
Ú do not expose the LCD panel to direct sunlight.
Úavoid contact with water. It may cause a short circuit within the module.
Ú disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms.)
Úalways clean the LCD panel with a soft cloth material.
Úuse care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
Úprotect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
Ú during the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth.
LEAKAGE CURRENT HOT CHECK CIRCUIT
• Avoid contact with water as it may a short circuit within the module.
• If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
• If you want to replace with the new backlight (CCFL) or inverter circuit, must disconnect the AC adapter because high
voltage appears at inverter circuit about 650Vrms.
• Handle with care wires or connectors of the inverter circuit. If the wires are pressed cause short and may burn or take
fire.
Leakage Current Hot Check Circuit
KLV-32U100M (UC) 5