KDE-55XBR950 (serv.man2) - Sony TV Service Manual (repair manual). Page 2

 

 

 

1 OUTLINE .................................................................................................................................. 1 

1.1 Panel Dimension ................................................................................................................ 1 
1.2 Feature ............................................................................................................................... 1 
1.3 Specification ....................................................................................................................... 2 

1.3.1 Functional specification ............................................................................................... 2 
1.3.2 Display quality specification ......................................................................................... 3 
1.3.3 I/O Interface Specification............................................................................................ 4 

2 SAFETY HANDLING of THE PLASMA DISPLAY ..................................................................... 8 

2.1 Notes to Follow During Servicing ....................................................................................... 8 

3 NAME and FUNCTION ............................................................................................................. 9 

3.1 Configuration ...................................................................................................................... 9 
3.2 Block Diagrams ................................................................................................................ 10 

3.2.1 Signal Diagrams ........................................................................................................ 10 
3.2.2 Power Diagrams ........................................................................................................ 11 

3.3 Function............................................................................................................................ 12 

3.3.1 Logic board Function ................................................................................................. 12 
3.3.2 Function of X-SUS Board .......................................................................................... 13 
3.3.3 Function of Y-SUS Board........................................................................................... 13 

3.4 Protection function............................................................................................................ 14 

4 PROBLEM ANALYSIS ............................................................................................................ 15 

4.1 Outline of Repair Flow...................................................................................................... 15 
4.2 Outline of PDP Module Repair Flow................................................................................. 16 
4.3 Checking the Product Requested for Repair .................................................................... 19 
4.4 Operation Test Procedure ................................................................................................ 20 
4.5 Fault Symptom ................................................................................................................. 22 
4.6 Problem Analysis Procedure ............................................................................................ 25 

4.6.1 "The entire screen does not light.(Main power is turned off)” Problem analysis 
procedure............................................................................................................................ 25 
4.6.2 "Vertical line/Vertical bar" Problem analysis procedure.............................................. 31 
4.6.3 "Horizontal bar" Problem analysis procedure............................................................. 35 

4.7 Problem Analysis Using a Personal Computer................................................................. 36 

4.7.1 Connecting a computer.............................................................................................. 36 
4.7.2 Preparing a computer ................................................................................................ 36 
4.7.3 Problem Analysis Procedure...................................................................................... 37 

5 Disassembling and Reassembling.......................................................................................... 40 

5.1 Exploded View.................................................................................................................. 40 
5.2 X-SUS Circuit Board Removal/Installation Procedure ...................................................... 41