KDL-32EX720, KDL-32EX723, KDL-40EX720, KDL-40EX723, KDL-46EX720, KDL-46EX723, KDL-55EX720, KDL-55EX723 - Sony TV Service Manual (repair manual). Page 5

Read Sony KDL-32EX720 / KDL-32EX723 / KDL-40EX720 / KDL-40EX723 / KDL-46EX720 / KDL-46EX723 / KDL-55EX720 / KDL-55EX723 Service Manual online

KDL-32EX720/32EX723/40EX720/40EX723/46EX720/46EX723/55EX720/55EX723 ii
TABLE OF CONTENTS
LCD Panel Assembly ...............................................................26
TCON Board .............................................................................. 26
LED Driver (LD Board) .............................................................. 26
Diagrams ..................................................................................27
Block Diagram ........................................................................... 27
Connector Diagrams ................................................................. 29
Section 4 - Troubleshooting .....................................................35
Overview ..................................................................................35
Updating the Software ............................................................... 35
Triage Chart .............................................................................36
Protection Shutdown ................................................................37
Standby LED Flash Count ......................................................... 37
Diagnostic Code Descriptions ..................................................41
Viewing the Self Check Diagnostic History ............................... 42
Section 5 - Flow Charts and Diagrams ...................................43
Overview ..................................................................................43
No Power ................................................................................... 44
Standby LED Blinking ................................................................ 46
No Picture/No Sound ................................................................. 52
Section 6 - Disassembly/Part Number Information ...............55
Table-Top Stand Assembly Removal ........................................55
Rear Cover and AC Cover Removal ........................................56
Switch Unit, Speakers, Wireless LAN Card and  
Antennas Removal .............................................................57
LD Board, HEM2 Board, HLR2 Board and  
HMS3 Board Removal ........................................................58
G10/G4/G5/G6/G8(Power Supply) Board and  
BATV (Main) Board Removal .............................................59
All Except KDL-55EX720/55EX723 ........................................... 59
KDL-55EX720/55EX723 Only ................................................... 60
Panel Brackets and LCD Panel Removal ................................61
Cleaning the LCD Panel ............................................................ 61
Screws .....................................................................................62
Connectors ...............................................................................62
KDL-32EX720/32EX723 Only ................................................... 62
KDL-40EX720/40EX723 Only ................................................... 63
KDL-46EX720/46EX723 Only ................................................... 63
KDL-55EX720/55EX723 Only ................................................... 63
Accessories and Packaging .....................................................64
Miscellaneous ..........................................................................64
Optional Accessories ................................................................64
Remote Commander ................................................................64
Wire Dressing ...........................................................................65
Section 7 - Service Adjustments .............................................66
Overview ..................................................................................66
Updating the Software ..............................................................66
Accessing Service Adjustment Mode .......................................66
Viewing or Changing Service Data ............................................ 67
Updating Service Adjustment Data 
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