Sony BRAVIA KDL-55EX500 User manual

Models: AZ1K Chassis
KDL-55EX500
KDL-55EX501
KDL-60EX500
Triage and Troubleshooting Guide
Course: CTV-65
Training Manual
KDL-55EX500

CTV-65 i
Section 1 - AZ1K Chassis Models Overview ..................... 3
AZ1K Chassis Models Covered ....................................... 5
Model Introduction ........................................................... 5
AV Input & Output Descriptions ....................................... 5
RF Input ............................................................................... 5
Composite Video & Audio Inputs ......................................... 5
Component/Composite Video & Audio Inputs ...................... 6
HDMI/DVI Video Input and DVI Video ................................. 6
PC Video & Audio Input (and DVI Audio) ............................. 6
USB 2.0 Side Connection - Photos & Music ........................ 6
Audio Outputs .................................................................. 7
Fixed Analog Audio Output .................................................. 7
Digital Audio Output (Optical) .............................................. 7
55” Model Overall PCB Block Diagram ........................... 8
60” Models Overall PCB Block Diagram .......................... 9
PCB and Component Descriptions ................................ 10
A-Board ............................................................................. 10
G5E-Board (55") or G8S-Board (60") ................................ 10
D1-Board (55") ................................................................... 10
Backlight Inverter Board (60") ............................................ 10
HRK-Board ........................................................................ 10
Switch Unit ......................................................................... 10
LCD Panel Assembly ..........................................................11
Section 2 - Troubleshooting Procedures ......................... 12
Power Symptom Troubleshooting .................................. 12
Table of Contents
Normal Operation .............................................................. 12
Failure Symptoms .............................................................. 12
No Power/Dead Set (No RED Standby LED) .............. 12
55” Power Supply System Block Diagram ..................... 14
G5E-Board Connector Diagram .................................... 15
60” Power Supply System Block Diagram ..................... 16
G8S-Board Connector Diagram .................................... 17
Protection Mode Symptom Troubleshooting .................. 18
Failure Symptoms .............................................................. 18
2X Blink - Main Power Error ........................................ 18
3X Blink- Audio Error ................................................... 18
4X Blink - Balancer Failure (55” Model Only) .............. 19
5X Blink - TCON & HFR Failure .................................. 19
6X Blink - Backlight System Failure (60” Models) ........ 19
6X Blink - Backlight System Failure (55” Models) ........ 19
7X Blink - Temperature Failure .................................... 20
55” Model Protection Mode System Block Diagram ...... 21
60” Model Protection Mode System Block Diagram ...... 22
All Models Power Board Protection Circuits Block
Diagram ......................................................................... 23
Video Symptom Troubleshooting ................................... 24
Normal Operation .............................................................. 24
Troubleshooting ................................................................. 24
Missing or Distorted Video (Individual Inputs) ................... 24
Missing Video (All Inputs) .................................................. 25
Skewing LVDS Connector Troubleshooting Method .... 25

CTV-65 ii
Table of Contents
Distorted Video (All Inputs) ................................................ 25
WIDE Mode Button (Aspect Ratio) Troubleshooting
Method ................................................................... 25
Unique Main Video Board (A-Board) or
LVDS Cable Effects ..................................................... 26
Unique TCON/HFR Board Effects ............................... 27
Unique LCD Panel Assembly Effects ........................... 27
Common Main Video Board (A-Board) and
LCD Panel Assembly Effects ....................................... 27
Video System Block Diagram ........................................ 28
Audio Symptom Troubleshooting ................................... 29
Normal Operation .............................................................. 29
Failure Symptoms .............................................................. 29
Missing or Distorted Main Speaker Audio - All Inputs .. 29
Missing or Distorted Main Speaker Audio - Individual
Inputs ..................................................................... 29
Audio System Block Diagram ........................................ 30
Section 3 - Service Mode .................................................. 31
Service Mode Access .................................................... 31
Section 4 - Triage & Troubleshooting Flowcharts .......... 32
Triage Flowchart ............................................................ 32
Power-ON Troubleshooting Flowchart ........................... 33
Protection Mode 2X, 3X, & 4X Troubleshooting
Flowchart ....................................................................... 34
Protection Mode 5X & 6X(60”) Troubleshooting
Flowchart ....................................................................... 35
Protection Mode 6X(55”) & 7X Troubleshooting
Flowchart ....................................................................... 36
Video Troubleshooting Flowchart .................................. 37
Audio Troubleshooting Flowchart .................................. 38
Appendix ............................................................................. 39
LCD Panel Distortion Pictures ....................................... 39
TCON/HFR Board Distortion Pictures ........................... 40
TCON/HFR Board Distortion Pictures Continued .......... 41
Video Board Distortion Pictures ..................................... 42
Video Board Distortion Pictures Continued ................... 43

CTV-65 3
Section 1 - AZ1K Chassis Models Overview
55” OVERALL PCB LOCATION DIAGRAM FIGURE
1-1
G5E-Board
A-Board
Balancer
Board
55" Model
TCON/HFR
Board
Switch Unit
HRK-Board
LVDS Cable
D1-Board
Speaker
Speaker

CTV-65 4
AZ1K Chassis Models Overview
60” OVERALL PCB LOCATION DIAGRAM
FIGURE 1-2
G8S-Board
TCON
A-Board
Speaker
Speaker
Inverter
Inverter
Switch
Unit
HRK-Board
TV Rear View

CTV-65 5
AZ1K Chassis Models Overview
AZ1K Chassis Models Covered
KDL-55EX500
KDL-55EX501
KDL-60EX500
Model Introduction
All models contain a Full High-Definition 1920 X 1080 resolution panel.
The backlight is produced using a Cold Cathode Fluorescent Lamp
(CCFL) light system for all models. All models have the Advanced
Contrast Enhancer (ACE) feature and Dynamic Backlighting. The Dynamic
Contrast Ratio (DCR) for all models is 150,000:1. All models contain the
BRAVIA Engine™ 2 digital video processor for superior resolution. Plus,
7 HD inputs (4 HDMI™, 2 component and 1 PC) are provided to connect
all of your HD devices including PLAYSTATION®3, Blu-ray Disc™ player
and laptop or desktop.
The BRAVIA Engine 2 fully digital video processor uses a collection of
unique Sony technologies to significantly reduce noise, enhance overall
image detail, and optimize contrast so every scene produces sharp,
vibrant, life-like images and color.
The EX500 series models contain the Motionflow™ 120Hz frame rate
technology which enhances sharpness and delivers smooth motion for
fast-action sports and movies.
Sony® HDTVs exceed Energy Star 3.0 requirements. In addition, they
incorporate advanced power saving features such as Light Sensor®
technology that adjusts backlight intensity based on ambient room lighting
conditions and Dynamic Backlight Control that adjusts backlight intensity
based on the brightness of the image on the screen.
AV Input & Output Descriptions
Composite
PC Input
HDMI
Input
HDMI
Input
HDMI/DVI
Input
Digital Audio
Output
(Optical)
Analog Audio
Output
(FIXED)
Component Input
Component/Composite
Input
RF Input
USB
HDMI
Input
PC & DVI Audio Input
RF Input
This is a 75 ohm connection for either terrestrial NTSC and ATSC (8VSB)
or cable QAM64 and QAM256 signals.
Composite Video & Audio Inputs
Yellow Jack - Composite Video Input
Red & White Jacks - Right & Left Audio Input
NOTE: The second composite input is shared with one of the component
inputs. Reference the description of the component inputs for details on
activating the composite input.

CTV-65 6
AZ1K Chassis Models Overview
Component/Composite Video & Audio Inputs
Red, Blue, & Green Jacks - Component Video Inputs
Red & White Jacks - Right & Left Audio Input
NOTE: Composite video can be applied to the component input label
“VIDEO IN”. The yellow composite video connector is connected to
the green component connector. The audio is connected to the same
component audio inputs.
IMPORTANT: For automatic signal detection make sure the User Menu
item is set to “AUTO. “ Reference the below for the specific menu item.
The input can also locked to Video 1 (composite) or Component 1
(component) signal. However, the input will only process the chosen
signal type. If the other signal type is connected the picture will be lost or
black & white.
Select the appropriate input
for the input signal type.
Auto – Auto Detection
Video 1 – Composite
Component 1 - Component
HDMI/DVI Video Input and DVI Video
Both the HDMI and DVI formats contain digital video. In the case of the
HDMI format the audio is also digital and is part of the video and audio
data stream over the single HDMI connection. In contrast, the DVI format
contains only digital video in its data stream. The audio is sent over a
separate Stereo Mini Jack audio connection. Furthermore, a DVI to HDMI
adapter is required to connect the DVI connector to the HDMI connector.
The EX500 series models contain the BRAVIA® Sync™ feature (or HDMI
CEC). With this feature external devices with HDMI CEC capabilities can
be operated and controlled using only the TV remote controller. Devices
such as, Blu-ray Disc™ players, Surround Sound Systems, Handycam®
camcorders, and Cybershot® digital still cameras can all be controlled
over the HDMI connection.
PC Video & Audio Input (and DVI Audio)
All EX models have a Personal Computer Input (PC-IN), which connects
directly to the PC 15 pin DIN connector (HD15 connector). Once connected
the TV functions as a video monitor and audio output (separate Stereo
Mini Plug) for the PC audio. There is a complete table of PC Input Signal
Compatibility in the Owners Manual for each model.
The Stereo Mini Plug is also used for a DVI audio connection at HDMI 1
video input. The DVI video is connected through an adapter to HDMI 1
input and the DVI audio to connected to the Stereo Mini Jack.
USB 2.0 Side Connection - Photos & Music
Connect a camera, USB-Enabled MP3 player, or USB storage device
directly to this side USB input to view JPG photos and MPEG1 & MPEG2
videos on the screen or listen to MP3 music files.
This USB connection is also used for TV Software updates using a USB
drive device.

CTV-65 7
AZ1K Chassis Models Overview
Audio Outputs
Fixed Analog Audio Output
This audio output can be used to listen to the TV audio through an external
AV stereo system. The audio level at the output is set to a fixed level and
cannot be turned off or adjusted.
Digital Audio Output (Optical)
Connects to the optical audio input of any digital audio equipment that is
PCM/Dolby digital compatible. The following table shows the audio inputs
and the audio format which are present at the Optical Audio Output per
input format.
Audio Input Source Optical Output
Digital Tuner 5.1 (ATSC) 5.1 Dolby
HDMI 5.1 5.1 Dolby
All Analog Audio Inputs 2CH PCM
Analog Tuner (NTSC) 2CH PCM
SACD Format (HDMI) No Output
DVD Audio Format (HDMI) No Output

CTV-65 8
AZ1K Chassis Models Overview
55” OVERALL PCB
BLOCK DIAGRAM
FIGURE 1-3
55” Model Overall PCB Block Diagram
Backlight High-
Voltage Circuits
D1-Board
AC
Input
A-Board
TV Microprocessor
MT5388 Processor :
Video Processing
HDMI Processing
HDCP Processing
IP (Image Processor)
Scan Converter (Scalar)
ATSC/NTSC Tuner
Temperature Sensor
Audio Output Amplifier
Control
HV Drive
LVDS
Keys
SIRCS
LCD Panel Assembly
LCD PANEL
Power Key
Function Keys
Switch Unit
Power
Main Power Supply
Standby Power Supply
AC Relay
G5E-Board
Power
Control
Power
LCD Panel
R
L
Optical Digital Audio Output
Analog Audio Output
CCFL
Backlight System
*High Frame Rate (120HZ)
Standard Frame Rate (60Hz)
TCON/HFR Board
B
A
L
A
N
C
E
R
Power
RF Input
1 Composite Input
2 Component Inputs
(Composite can be applied to Component 1)
1 PC Input
4 HDMI Inputs
USB 2.0
Power
Control
LEDs
IR Sensor
Ambient Light Level Sensor
HRK-Board

CTV-65 9
AZ1K Chassis Models Overview
60” OVERALL PCB
BLOCK DIAGRAM
FIGURE 1-4
Inverter Board
A-Board
TV Microprocessor
MT5388:
Video Processing
HDMI Processing
HDCP Processing
IP (Image Processor)
Scan Converter (Scalar)
HDMI Switcher
ATSC/NTSC Tuner
Temperature Sensor
Audio Output Amplifier
Control
HV
LVDS
Keys
Power/
SIRCS
LCD Panel Assembly
LCD PANEL
Power Key
Function Keys
Switch Unit
LEDs
IR Sensor
Ambient Light Level Sensor
HRK-Board
Power
Main Power Supply
Standby Power Supply
AC Relay
G8S-Board
24V
Power
LCD Panel
R
L
RF Input
1 Composite Input
2 Component Inputs
(Composite can be applied to Component 1)
1 PC Input
3 HDMI Inputs
Optical Digital Audio Output
Analog Audio Output
CCFL
Backlight System
TCON/HFR
Power
AC
Input
*High Frame Rate (120HZ)
1 USB 2.0
Control & 24V
Inverter Board
HV
60” Models Overall PCB Block Diagram