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KDL-32EX725/40EX725/46EX725/55EX725 ii

Block Diagram ........................................................................... 22
Connector Diagrams ................................................................. 24

Triage Chart .............................................................................31
Protection Shutdown ................................................................32

No Power ................................................................................... 39
Standby LED Blinking ................................................................ 41
No Picture/No Sound ................................................................. 47
TV/Remote Commander Buttons Not Working ......................... 50
Network Not Connecting  .......................................................... 52
3D Does not Display .................................................................. 54
Skype Accessory Not Working .................................................. 55

Table-top Stand Assembly Removal ........................................57
Rear Cover and AC Cover Removal ........................................58
Switch Unit and Speakers Removal .........................................59
LD Board, HEM2 Board, HLR2 Board 

KDL-32EX725/40EX725/46EX725 Only ................................... 61
KDL-55EX725 Only ................................................................... 62

Accessories and Packaging .....................................................66
Miscellaneous ..........................................................................66
Optional Accessories ................................................................66
Remote Commander ................................................................66
Wire Dressing ...........................................................................67

KDL-32EX725/40EX725/46EX725/55EX725 iii

Selecting the Segment Code ..................................................... 70
Selecting the Destination ........................................................... 71
Selecting the Model Name ........................................................ 73
Selecting the BU Trans .............................................................. 74
Adding the Serial Number ......................................................... 75
Confirming the Model ID and Product ID ................................... 77

Copying the BU Flash Data ....................................................... 78
Confirming the Model ID and Product ID ................................... 80
Resetting the Panel Operation Time ......................................... 81

KDL-32EX725 ..........................................................................A-2
KDL-40EX725 ..........................................................................A-4
KDL-46EX725 ..........................................................................A-6

KDL-32EX725 ..........................................................................B-1
KDL-40EX725 ..........................................................................B-2
KDL-46EX725 ..........................................................................B-2

Removing the LCD Panel from the Bezel ..............................C-1
Reattaching the LCD Panel onto the Bezel ............................C-2

KDL-32EX725/40EX725/46EX725/55EX725 1

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.

• 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.

• Disconnect all cables when carrying the TV.

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.

Components identified 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 specified in this manual to prevent electric shock, fire, or other hazard.
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. 
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-32EX725/40EX725/46EX725/55EX725 2

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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.
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Do 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.
W

 

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.

Clean the cabinet of the TV with a dry soft cloth.
Wipe the LCD screen gently with a soft cloth.
R

  Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water.

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  If using a chemically pretreated cloth, please follow the instruction provided on the package.

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  Never use strong solvents such as a thinner, alcohol or benzine for cleaning. 

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  Periodic vacuuming of the ventilation openings is recommended to ensure to proper ventilation.