Read Sony KDL-40EX640 / KDL-46EX640 / KDL-55EX640 Service Manual online
KDL-40EX640/46EX640/55EX640 i
TABLE OF CONTENTS
Cautions and Warnings ...................................................................................ii
Section 1 - Features and Overview ................................................................1
Section 1 - Features and Overview ................................................................1
Features ........................................................................................................1
Specifications ................................................................................................1
Chassis Overview ..........................................................................................3
Overall Circuit Description .............................................................................5
Specifications ................................................................................................1
Chassis Overview ..........................................................................................3
Overall Circuit Description .............................................................................5
Main Board ...............................................................................................5
Power Supply Board .................................................................................5
IR Board ....................................................................................................5
Switch Unit ................................................................................................5
LCD Panel Assembly ................................................................................6
Power Supply Board .................................................................................5
IR Board ....................................................................................................5
Switch Unit ................................................................................................5
LCD Panel Assembly ................................................................................6
Section 2 - Troubleshooting ...........................................................................7
Overview .......................................................................................................7
Updating the Software ..............................................................................7
Self Diagnosis Function .................................................................................7
Standby LED Blink Count .........................................................................7
Viewing the Self Check Diagnosis History ................................................8
Viewing the Self Check Diagnosis History ................................................8
Triage Chart ...................................................................................................9
Section 3 - Flow Charts and Diagrams ........................................................10
Block Diagram .............................................................................................10
No Power ..................................................................................................... 11
Standby LED Blinking ..................................................................................13
No Video ......................................................................................................14
No Power ..................................................................................................... 11
Standby LED Blinking ..................................................................................13
No Video ......................................................................................................14
Section 4 - Disassembly/Part Number Information ....................................16
Table-Top Stand Removal ...........................................................................16
Rear Cover Removal ...................................................................................17
Handling the LVDS FFC Connector .............................................................18
Rear Cover Removal ...................................................................................17
Handling the LVDS FFC Connector .............................................................18
Disconnecting the LVDS FFC Connector ...............................................18
Connecting the LVDS FFC Connector ....................................................18
Connecting the LVDS FFC Connector ....................................................18
Main Board (A) and Power Supply Board (GL5A/GL5B/GE55) Removal ...19
Panel Brackets and LCD Panel Removal ....................................................20
Panel Brackets and LCD Panel Removal ....................................................20
Cleaning the LCD Panel .........................................................................20
Connectors ..................................................................................................21
Screws .........................................................................................................21
Accessories and Packaging ........................................................................22
Miscellaneous ..............................................................................................22
Wire Dressing ..............................................................................................23
Screws .........................................................................................................21
Accessories and Packaging ........................................................................22
Miscellaneous ..............................................................................................22
Wire Dressing ..............................................................................................23
Section 5 - Updates and Adjustments .........................................................24
Overview .....................................................................................................24
Software Updates for Customers ................................................................24
Software Updates for Servicers ...................................................................24
Software Updates for Customers ................................................................24
Software Updates for Servicers ...................................................................24
Software Update Responsibility ..............................................................25
Checking the Software Version ...............................................................25
Examples of Software Correctable Symptoms .......................................25
Checking the Software Version ...............................................................25
Examples of Software Correctable Symptoms .......................................25
Overview .....................................................................................................26
Updating the Software .................................................................................26
Accessing Service Adjustment Mode ..........................................................26
Completing Service Requirements When Replacing the Main Board .........27
Updating the Software .................................................................................26
Accessing Service Adjustment Mode ..........................................................26
Completing Service Requirements When Replacing the Main Board .........27
Viewing the Status Information ...............................................................27
Selecting the Panel ID Code .......................................................................28
Adding the Serial Number ...........................................................................29
Adding the Serial Number ...........................................................................29
Adding the Model Name .........................................................................30
Completing Service Requirements When Replacing the LCD Panel ..........31
Verifying the Panel ID Code ....................................................................32
Resetting Panel Operation Time .............................................................32
Resetting Panel Operation Time .............................................................32
Accessing Factory Adjustment Mode ..........................................................33
Adjusting the Color Temperature ............................................................34
Appendix A: Encryption Key Components ............................................... A-1
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