Read Sony KDL-22EX350 Service Manual online
SERVICE / TRAINING MANUAL
LCD Digital Color TV
AZ3FK
Chassis
Segment: P-2L
9-883-888-03
Self Diagnosis
Supported model
Version Date
Subject
1.0
5/27/2012
Original Manual Release Date.
2.0
6/12/2012
Added Gear Screw. Replaced page 19.
3.0
7/23/2012
New Caution added on page ii.
Updated Service Adjustments section. Replaced pages 23 - 28.
ORIGINAL MANUAL ISSUE DATE: 5/2012
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE / TRAINING MANUAL
LCD Digital Color TV
AZ3FK
Chassis
Segment: P-2L
9-883-888-03
Self Diagnosis
Supported model
KDL-22EX350
MODEL LIST
MODEL
COMMANDER
DESTINATION
MODEL
COMMANDER
DESTINATION
9-883-888-03
KDL-22EX350 RM-YD080
LA/MX
KDL-22EX350 i
TABLE OF CONTENTS
Cautions and Warnings ...................................................................................ii
Section 1 - Features and Overview ................................................................1
Features ........................................................................................................1
Specifications ................................................................................................1
Chassis Overview ..........................................................................................3
Overall Circuit Description .............................................................................4
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
Power Supply Board .................................................................................4
IR Board ....................................................................................................4
Switch Unit ................................................................................................4
LCD Panel Assembly ................................................................................5
Section 2 - Troubleshooting ...........................................................................6
Overview .......................................................................................................6
Updating the Software ..............................................................................6
Self Diagnosis Function .................................................................................6
Standby LED Blink Count .........................................................................6
Viewing the Self Check Diagnosis History ................................................7
Viewing the Self Check Diagnosis History ................................................7
Triage Chart ...................................................................................................9
Section 3 - Flow Charts and Diagrams ........................................................10
Block Diagram .............................................................................................10
No Power ..................................................................................................... 11
Standby LED Blinking ..................................................................................12
No Video ......................................................................................................13
No Power ..................................................................................................... 11
Standby LED Blinking ..................................................................................12
No Video ......................................................................................................13
Section 4 - Disassembly/Part Number Information ....................................15
Table-Top Stand and Rear Cover Removal .................................................15
Main Board (A) and Power Supply Board (GE22) Removal ........................16
Main Board (A) and Power Supply Board (GE22) Removal ........................16
LCD Panel Removal ....................................................................................17
Cleaning the LCD Panel .........................................................................17
Connectors ..................................................................................................18
Screws .........................................................................................................18
Accessories and Packaging ........................................................................19
Wire Dressing ..............................................................................................20
Screws .........................................................................................................18
Accessories and Packaging ........................................................................19
Wire Dressing ..............................................................................................20
Section 5 - Updates and Adjustments .........................................................21
Overview .....................................................................................................21
Software Updates for Customers ................................................................21
Software Updates for Servicers ...................................................................21
Software Updates for Customers ................................................................21
Software Updates for Servicers ...................................................................21
Software Update Responsibility ..............................................................22
Checking the Software Version ...............................................................22
Examples of Software Correctable Symptoms .......................................22
Checking the Software Version ...............................................................22
Examples of Software Correctable Symptoms .......................................22
Overview .....................................................................................................23
Updating the Software .................................................................................23
Completing Service Requirements When Replacing the Main Board .........24
Updating the Software .................................................................................23
Completing Service Requirements When Replacing the Main Board .........24
Viewing the Status Information ...............................................................24
Selecting the Panel ID Code ...................................................................25
Adding the Serial Number .......................................................................26
Adding the Model Name .........................................................................27
Selecting the Panel ID Code ...................................................................25
Adding the Serial Number .......................................................................26
Adding the Model Name .........................................................................27
Completing Service Requirements When Replacing the LCD Panel ..........29
Viewing the Status Information ...............................................................29
Verifying the Panel ID Code ....................................................................29
Resetting Panel Operation Time .............................................................30
Verifying the Panel ID Code ....................................................................29
Resetting Panel Operation Time .............................................................30
Accessing Factory Adjustment Mode ..........................................................31
Adjusting the Color Temperature ............................................................31
Appendix A: Encryption Key Components ............................................... A-1