Read Sony KDL-55BX520 Service Manual online
SERVICE/TRAINING MANUAL
LCD Digital Color TV
AZ2-UK
Chassis
Segment: P-2F
9-883-868-05
Version Date
Subject
1.0
8/5/2011
Original Manual Release Date.
2.0
9/19/2011
Updated Disassembly Section. Replaced pages 38 and 40.
3.0
12/21/2011
Added Mexico model to manual. Reissue entire manual.
4.0
3/26/2012
Updated VESA Bracket information. Replaced page 38.
5.0
11/26/2012
Updated Service Adjustments Section. Replaced page 44.
ORIGINAL MANUAL ISSUE DATE: 8/2011
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE/TRAINING MANUAL
LCD Digital Color TV
AZ2-UK
Chassis
Segment: P-2F
9-883-868-05
KDL-55BX520
MODEL LIST
MODEL
COMMANDER
DESTINATION
MODEL
COMMANDER
DESTINATION
KDL-55BX520
RM-YD065 US/CND
KDL-55BX520
RM-YD065 MX
9-883-868-05
KDL-55BX520 i
TABLE OF CONTENTS
Section 1 - Safety and Features.................................................1
Warnings and Cautions - English ...............................................1
Safety-Related Warnings ............................................................ 3
Warnings and Cautions - French ...............................................4
Safety Check-Out .......................................................................7
Self Diagnosis Function ...........................................................10
Overview .................................................................................. 11
Features ................................................................................... 11
Safety Check-Out .......................................................................7
Self Diagnosis Function ...........................................................10
Overview .................................................................................. 11
Features ................................................................................... 11
Scene Select ..............................................................................11
USB Input ..................................................................................11
LightSensor™ Technology .........................................................11
5 HD Inputs ................................................................................11
BRAVIA® Sync™ Compatible .................................................. 12
USB Input ..................................................................................11
LightSensor™ Technology .........................................................11
5 HD Inputs ................................................................................11
BRAVIA® Sync™ Compatible .................................................. 12
Specifications ...........................................................................13
Section 2 - Software Requirements.........................................14
Overview ..................................................................................14
Software Updates for Customers .............................................14
Software Updates for Servicers ...............................................15
Software Updates for Customers .............................................14
Software Updates for Servicers ...............................................15
Software Update Responsibility ................................................ 15
Checking the Software Version ................................................. 15
Examples of Software Correctable Symptoms ......................... 16
Checking the Software Version ................................................. 15
Examples of Software Correctable Symptoms ......................... 16
Section 3 - Chassis Overview ..................................................17
Overview ..................................................................................17
Overall Circuit Description .......................................................18
Overall Circuit Description .......................................................18
Main Board ............................................................................... 18
FRC Board ................................................................................ 18
Power Supply ............................................................................ 19
Inverter ...................................................................................... 19
Switch Unit ................................................................................ 19
H Board ..................................................................................... 19
FRC Board ................................................................................ 18
Power Supply ............................................................................ 19
Inverter ...................................................................................... 19
Switch Unit ................................................................................ 19
H Board ..................................................................................... 19
Diagrams ..................................................................................20
Block Diagrams ......................................................................... 20
Connector Diagrams ................................................................. 22
Connector Diagrams ................................................................. 22
Section 4 - Troubleshooting .....................................................23
Overview ..................................................................................23
Updating the software ............................................................... 23
Video Failures ..........................................................................23
No Video ................................................................................... 23
Video Distortion ........................................................................ 24
Video Distortion ........................................................................ 24
Audio Troubleshooting .............................................................25
Power Supply Troubleshooting ................................................26
Power Supply Troubleshooting ................................................26
Completely Dead Set ................................................................ 26
TV Won’t Power On .................................................................. 26
TV Won’t Power On .................................................................. 26
Backlight Issues .......................................................................26
No Backlight, No Shutdown ...................................................... 26
Protection Shutdown ................................................................27
Standby LED Flash Count ........................................................ 27