KDL-32EX340, KDL-42EX440 - Sony TV Service Manual (repair manual)

Segment: P-2LT

1.0  

8/27/2012 

Original Manual Release Date.

Segment: P-2LT

KDL-32EX340 

KDL-42EX440 

KDL-32EX340/42EX440 i

Features ........................................................................................................1
Specifications ................................................................................................1
Chassis Overview ..........................................................................................3
Overall Circuit Description .............................................................................4

Main Board ...............................................................................................4
Power Supply Board .................................................................................4
IR Board ....................................................................................................4
Switch Unit ................................................................................................4
LCD Panel Assembly ................................................................................5

Overview .......................................................................................................6

Updating the Software ..............................................................................6

Self Diagnosis Function .................................................................................6

Standby LED Blink Count .........................................................................6
Viewing the Self Check Diagnosis History ................................................7

Triage Chart ...................................................................................................8

Block Diagram ...............................................................................................9
No Power .....................................................................................................10
Standby LED Blinking ..................................................................................12
No Video ......................................................................................................13

Table-Top Stand and Rear Cover Removal .................................................15
Chassis Assembly Removal ........................................................................16
Bezel Assembly Removal  ...........................................................................17

Connectors ..................................................................................................18

KDL-32EX340 Only ................................................................................18
KDL-42EX440 Only ................................................................................18

Screws .........................................................................................................19
Accessories and Packaging ........................................................................20
Miscellaneous ..............................................................................................20
Wire Dressing ..............................................................................................21

Overview .....................................................................................................22
Software Updates for Customers ................................................................22
Software Updates for Servicers ...................................................................22

Software Update Responsibility ..............................................................23
Checking the Software Version ...............................................................23
Examples of Software Correctable Symptoms .......................................23

Accessing Service Adjustment Mode ..........................................................24
Completing Service Requirements When Replacing the Main Board .........25

Viewing the Status Information ...............................................................25
Selecting the Panel ID Code ...................................................................26
Adding the Serial Number .......................................................................27
Adding the Model Name .........................................................................28

Completing Service Requirements When Replacing the LCD Panel or 

TCON Board ................................................................................................30

Verifying the Panel ID Code ....................................................................30
Resetting Panel Operation Time .............................................................31

Accessing Factory Adjustment Mode ..........................................................32

Adjusting the Color Temperature ............................................................32