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Training Manual
FX Chassis
Models:
KDL-40S4100
KDL-46S4100
KDL-52S4100
Triage and Troubleshooting Guide
Course: CTV-49
Table of Contents
Section 1 - Input & Output Layout and Description.......... 3 TV will not Turn ON (Dead Set) ................................... 14
Input Descriptions ............................................................ 4 TV Shuts OFF (No Blink Pattern) ................................ 15
RF Input ............................................................................... 4 5X Blink Pattern (Lose of 6.5V) ................................... 15
Composite Video & Audio Inputs 1 & 2 ................................ 4 Panel Backlight System ..................................................... 15
Component Video & Audio Inputs 1 & 2 .............................. 4 Normal Operation ........................................................ 15
HDMI/DVI Video Inputs 1, 2, & 3 and DVI Audio ................. 4 Momentary Backlight - 2X Blink Pattern ...................... 15
PC Video & Audio Input ....................................................... 4 No Backlight - No Blink Pattern (No Video or Audio) ... 16
"Service Only" USB Connection .......................................... 4 There are two failures that will cause this symptom. ... 16
Audio Outputs .................................................................. 4 No Backlight - No Blink Pattern (Video & Audio OK) ... 16
Analog Fixed Audio Output .................................................. 4 There are two failures that will cause this symptom. ... 16
Digital Audio Output (Optical) .............................................. 4 Momentary Backlight - No Blink Pattern
(Video & Audio OK) ...................................................... 17
Section 2 - Chassis Layout ................................................. 5
Backlight ON - No Video -Bright Raster Only
PCB and Component Descriptions .................................. 7 - Audio OK .................................................................. 17
Section 3 - Block Diagrams ................................................ 9 Backlight ON - No Video - Vertical Colored Lines Dis-
played - Audio OK .................................................. 17
Overall Chassis Block Diagram ....................................... 9
Video Processing System ................................................. 17
Power System Block Diagram ....................................... 10
No Video ...................................................................... 18
Protection Circuits Block Diagram ..................................11
Distorted Video ............................................................ 18
Video System Block Diagram ........................................ 12
The A-Board Affects ..................................................... 18
Audio System Block Diagram ........................................ 13
LCD Panel Assembly Affects (& TCON Board) ............ 19
Section 4 - Troubleshooting.............................................. 14 Audio Troubleshooting ....................................................... 20
Introduction .................................................................... 14 Missing or Distorted Main Speaker Audio - All Inputs .. 20
Symptom & Solution ...................................................... 14 Missing or Distorted Audio - Individual Inputs .............. 20
Power Supply System........................................................ 14 Section 5 - Technical Troubleshooting Flowcharts ........ 30
Normal Operation ........................................................ 14
Section 6 - Service Mode & Factory Reset ...................... 40
CTV-49 i
Table of Contents
Service Mode Item Descriptions .................................... 41
Figures
G-Board Test Points Figure 3-1..........................21
A-Board Test Points Figure 3-2..........................22
Balancer Board Test Points Figure 3-3.................23
LVDS Cable Video Test Points Figure 3-4..........24
A-Board Distortion Photographs Figure 3-5...........25
A-Board Distortion Photographs Figure 3-6........26
TCON Distortion Photographs Figure 3-7...........27
TCON Distortion Photographs Figure 3-8...........28
HV Connector Removal Figure 3-9........29
CTV-49 ii
Section 1 - Input & Output Layout and Description
Service only
USB
HDMI & DVI
Input
Composite
Component PC HDMI & DVI Input
Inputs Inputs Inputs
Composite
& S-Video
Input
Digital Audio Audio
Output Output
(Optical) (FIXED)
RF Input
CTV-47 3
Input & Output Layout and Description
Input Descriptions Audio Outputs
RF Input Analog Fixed Audio Output
Reference Figure 1-1 This audio output can be used to listen to the TV audio through an external
stereo system. The audio level at the output is set to a fixed level and
Composite Video & Audio Inputs 1 & 2 cannot be adjusted.
Yellow Jack - Composite Video Input
Red & White Jacks - Right & Left Audio Input Digital Audio Output (Optical)
Connects to the optical audio input of any digital audio equipment that is
Component Video & Audio Inputs 1 & 2 PCM/Dolby digital compatible. The following table shows the audio inputs
Red, Green, & Blue Jacks - Component Video Inputs and the audio format which are present at the Optical Audio Output.
Red & White Jacks - Right & Left Audio Input
Audio Input Source Coaxial Output
HDMI/DVI Video Inputs 1, 2, & 3 and DVI Audio Digital Tuner 5.1 (ATSC) 2CH PCM
Both the HDMI and DVI formats contain digital video. In the case of the DVD HDMI 5.1 2CH PCM
HDMI format the audio is also digital and is part of the video and audio All Analog Audio Inputs 2CH PCM
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 Analog Tuner (NTSC) 2CH PCM
separate red and white wired analog audio connection. Furthermore, a SACD (HDMI) No Output
DVI to HDMI adapter is required to connect the DVI connector to the DVD Audio (HDMI) No Output
HDMI connector.
PC Video & Audio Input
The MA2 chassis models (KDl-26M4000, KDL-32M4000, KDL-37M4000,
and KDL-40M4000) 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. There is a complete table of PC Input Signal
Compatibility on Page 18 in the Owners Manual.
"Service Only" USB Connection
This USB connection is for Sony factory use only.
CTV-47 4
Section 2 - Chassis Layout
H1-Board
TCON Board
(Under Shield )
LVDS Cable
Balancer Board
(Under Cover)
G-Board
A-Board
(Under Shield )
H3-Board
H2-Board
KDL-40, 46S4100
KDL-40, 46S4100 PCB LAYOUT DIAGRAM
FIGURE 1-1
CTV-49 5
Chassis Layout
H1-Board
TCON Board
(Under Shield )
Balancer Board LVDS Cable Balancer Board
(Under Cover ) (Under Cover )
G-Board
A-Board
(Under Shield )
H3-Board
H2-Board
KDL-52S4100 PCB LAYOUT DIAGRAM
FIGURE 1-2
CTV-49 6
Chassis Layout
PCB and Component Descriptions G-Board
Reference Figures 1-1 & 1-2 Except for some regulator circuits on the A-Board, the G-Board is the
A-Board power supply system board, which includes the following components
and circuits.
The circuits located on the A-Board perform all Video and Audio processing
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