KDL-40EX645, KDL-46EX641, KDL-46EX645, KDL-50EX645, KDL-55EX645 - Sony TV Service Manual (repair manual). Page 4

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KDL-40EX645/46EX641/46EX645/50EX645/55EX645 i
TABLE OF CONTENTS
Cautions and Warnings ..................................................................................iii
Section 1 - Features and Overview ................................................................1
Features ........................................................................................................1
Specifications ................................................................................................1
Chassis Overview ..........................................................................................3
Overall Circuit Description .............................................................................5
Main Board ...............................................................................................5
Power Supply Board .................................................................................5
IR Board ....................................................................................................5
Switch Unit ................................................................................................5
Wireless LAN Card ...................................................................................6
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
Triage Chart ...................................................................................................9
Section 3 - Flow Charts and Diagrams ........................................................10
Block Diagram .............................................................................................10
All Models Except KDL-50EX645 ...........................................................10
KDL-50EX645 Only ................................................................................ 11
No Power .....................................................................................................12
All Models Except KDL-50EX645 ...........................................................12
KDL-50EX645 Only ................................................................................13
Standby LED Blinking ..................................................................................15
No Video ......................................................................................................16
Section 4 - Disassembly/Part Number Information ....................................18
Table-Top Stand Removal ...........................................................................18
Rear Cover Removal ...................................................................................19
All Models Except KDL-50EX645 ...........................................................19
KDL-50EX645 Only ................................................................................20
Main Board (A) and Power Supply Board (GL5A/GL5B/GE50/GE55) 
Removal ......................................................................................................21
All Models Except KDL-50EX645 ...........................................................21
KDL-50EX645 Only ................................................................................22
LCD Panel Removal ....................................................................................23
All Models Except KDL-50EX645 ...........................................................23
KDL-50EX645 Only ................................................................................24
Cleaning the LCD Panel .........................................................................24
Connectors ..................................................................................................25
KDL-40EX645 Only ................................................................................25
KDL-46EX641/46EX645 Only .................................................................25
KDL-50EX645 Only ................................................................................26
KDL-55EX645 Only ................................................................................26
Screws .........................................................................................................27
Accessories and Packaging ........................................................................28
Miscellaneous ..............................................................................................28
Optional Accessories ...................................................................................28
Remote Commander ...................................................................................28
Wire Dressing ..............................................................................................29
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