Read Sony KDL-40EX725 Service Manual online
KDL-40EX725 ii
TABLE OF CONTENTS
Diagrams ..................................................................................21
Block Diagram ........................................................................... 21
Connector Diagrams ................................................................. 23
Connector Diagrams ................................................................. 23
Section 4 - Troubleshooting .....................................................25
Overview ..................................................................................25
Updating the Software ............................................................... 25
Triage Chart .............................................................................26
Protection Shutdown ................................................................27
Protection Shutdown ................................................................27
Standby LED Flash Count ......................................................... 27
Diagnostic Code Descriptions ..................................................31
Viewing the Self Check Diagnostic History ............................... 32
Section 5 - Flow Charts and Diagrams ...................................33
Overview ..................................................................................33
No Power ................................................................................... 34
Standby LED Blinking ................................................................ 36
No Picture/No Sound ................................................................. 37
Standby LED Blinking ................................................................ 36
No Picture/No Sound ................................................................. 37
Section 6 - Disassembly/Part Number Information ...............40
Table-Top Stand Assembly Removal ........................................40
Rear Cover and AC Cover Removal ........................................41
Switch Unit and Speakers Removal .........................................42
LD Board, HEM2 Board, HLR2 Board and
Rear Cover and AC Cover Removal ........................................41
Switch Unit and Speakers Removal .........................................42
LD Board, HEM2 Board, HLR2 Board and
HMS3 Board Removal ........................................................43
G4 (Power Supply) Board and BATV (Main) Board Removal ..44
Panel Brackets and LCD Panel Removal ................................45
Panel Brackets and LCD Panel Removal ................................45
Cleaning the LCD Panel ............................................................ 45
Screw Legend ..........................................................................46
Connectors ...............................................................................46
Connectors ...............................................................................46
Section 7 - Service Adjustments .............................................47
Overview ..................................................................................47
Updating the Software ..............................................................47
Accessing Service Adjustment .................................................47
Updating the Software ..............................................................47
Accessing Service Adjustment .................................................47
Viewing or Changing Service Data ............................................ 48
Updating Service Adjustment Data
When Replacing the Main Board ........................................49
Selecting the Segment Code ..................................................... 49
Verifying the Destination ............................................................ 50
Selecting the Destination ........................................................... 50
Selecting the Model Name ........................................................ 52
Selecting the BU Trans .............................................................. 52
Adding the Serial Number ......................................................... 53
Confirming the Model ID and Product ID ................................... 55
Verifying the Destination ............................................................ 50
Selecting the Destination ........................................................... 50
Selecting the Model Name ........................................................ 52
Selecting the BU Trans .............................................................. 52
Adding the Serial Number ......................................................... 53
Confirming the Model ID and Product ID ................................... 55
Updating Service Adjustment Data
When Replacing the LCD Panel .........................................56
Copying the BU Flash Data ....................................................... 56
Confirming the Model ID and Product ID ................................... 58
Resetting the Panel Operation Time ......................................... 59
Confirming the Model ID and Product ID ................................... 58
Resetting the Panel Operation Time ......................................... 59
Optional Adjustments ...............................................................60
Setting White Balance Adjustments .......................................... 60
Resetting the TV to Factory Condition .....................................61
Resetting the TV to Factory Condition
Using Service Mode ............................................................ 61
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