Sony KDS-50A2000 - 50" Rear Projection TV Installation guide

2006 SXRD-A Chassis
Models:
KDS-50A2000
KDS-55A2000
KDS-60A2000
Diagnostics, Troubleshooting, and Disassembly
Course: TVP-23R2
Training Manual
KDS-60A2000

TVP-23 i
Audio Outputs ................................................................ 19
Variable/Fixed Audio Tutput ............................................... 19
Optical Audio Output (Digital) ............................................ 19
Chapter 2 - PCB & Component Locations and Descrip-
tions ................................................................................ 20
PCB Locations ............................................................... 20
PCB and Component Descriptions ................................ 24
G-Board Power Supply) ..................................................... 24
Lamp Power Supply Block (aka Ballast, Lamp Driver) ...... 24
A1-Board (Audio/Video Switching, System Control, & Audio
Processing) .................................................................. 24
B1-Board (Video Processing) ............................................ 25
QM-Board .......................................................................... 25
QT-Board ........................................................................... 25
Optical Block ...................................................................... 25
C-Board ............................................................................. 25
S1-Board ............................................................................ 25
S2-Board ............................................................................ 25
T-Board .............................................................................. 25
H1-Board ........................................................................... 25
H2-Board ........................................................................... 25
H3-Board ........................................................................... 25
Chapter 3 - Initial Contact Analysis .................................. 26
Detail description of the steps in the Initial Contact Flow-
chart ......................................................................... 27
Introduction .......................................................................... 1
Technology ...................................................................... 1
Silicon Crystal Reflective Display (SXRD) ........................... 1
Features .......................................................................... 3
Advanced Iris ....................................................................... 3
PC Input ............................................................................... 4
Specifications for 2006 SXRD-A Models ......................... 4
Models ........................................................................... 4
Television System Compatibilities .................................. 4
Channel Coverage ......................................................... 4
Screen Size ................................................................... 4
SXRD Panels ................................................................. 4
Lamp .............................................................................. 5
Speaker Output .............................................................. 5
Power Requirements ..................................................... 5
Power Comsumption ..................................................... 5
Technical Triage & Troubleshooting Information ............. 6
Triage Summary Chart ........................................................ 7
Chapter 1 - Input & Output Locations and Descriptions 18
Video Inputs ................................................................... 19
Composite Video Inputs 1, 2, & 3 ..................................... 19
Component Video Inputs 2, 4 & 5 ..................................... 19
HDMI/DVI Video Inputs 6 & 7 ........................................... 19
PC Video Input Video 8 ..................................................... 19
Table of Contents

TVP-23 ii
Table of Contents
Chapter 4 - Power Supply System ................................... 29
Overall System Description ........................................... 31
Troubleshooting Flowchart ............................................ 33
Power-On ........................................................................... 33
Troubleshooting Flowchart Step Descriptions ................... 36
Chapter 5 - Protection Circuits ......................................... 38
Overall Block Diagram ................................................... 38
Overall System Description ........................................... 42
Protection Circuits Functional Description ........................ 42
Lamp Error (Continuous Lamp Red LED Flash) .......... 42
Temperature Error (2X Red Power LED Flash Pattern) 42
Lamp Cover Error (3X Power Red LED Flash Pattern) 43
Fan Rotation Error (4X Power Red LED Flash Pattern) 43
Lamp (HV) Driver Error (5X Power Red LED Flash Pat-
tern) ........................................................................ 43
Power Supply (Low B+) Error (6X Power Red LED Flash
Pattern) .................................................................. 43
Audio Error (7X Power Red LED Flash Pattern) .......... 43
Troubleshooting Flowcharts ........................................... 44
Troubleshooting Flowchart Step Descriptions ................... 49
Lamp Error (Lamp LED) .............................................. 49
Temperature Error (2X) ................................................ 49
Lamp Door Error (3X) .................................................. 50
Fan Error (4X) .............................................................. 51
Lamp Drive Error ( 5X) ................................................. 53
Low B+ Error (6X) ........................................................ 54
Audio Output Error (7X) ............................................... 56
6.5V OVP Error (8X) .................................................... 57
Data Communications Error (9X) ................................. 57
Chapter 6 - Video Processing System ............................. 59
Overall Block Diagram ................................................... 59
Overall System Description ........................................... 61
Video Input Descriptions .................................................... 61
Video Circuits Functional Description ................................ 62
Troubleshooting Flowcharts ........................................... 63
Troubleshooting Flowchart Step Descriptions ................... 63
Missing or Distorted Video ........................................... 64
Individual Video Input Troubleshooting ........................ 65
Optical Block Troubleshooting ..................................... 66
Individual Video Inputs ................................................. 72
Optical Block ................................................................ 73
Chapter 7 - Audio Processing System ............................. 74
Overall Block Diagram ................................................... 74
Overall System Description ........................................... 75
Troubleshooting Flowchart ............................................ 76
Troubleshooting Flowchart Step Descriptions ................... 77
Disassembly Procedures .................................................. 79
Lamp Removal .............................................................. 79
Rear & Sub Plastic Cover Removal ............................... 80
PCB Chassis Assembly Removal .................................. 82

TVP-23 iii
Table of Contents
Lamp Ballast & Fan Assembly Removal ........................ 84
Optical Block Removal .................................................. 87
Screen Frame Removal ................................................. 89
Appendix ............................................................................. 91
Service Mode Options ................................................... 91
Navigating in Service Mode ........................................... 92
Service Mode On-Screen-Displays & Test Patterns ...... 93
TV Service Mode ........................................................... 94
QM Service Mode .......................................................... 95
Panel Service Mode ...................................................... 97
Picture Horizontal & Vertical Position Adjustment ......... 99
Self Check (Error History Display) ............................... 101
Lamp Timer & Reset and Operation Timer .................. 102
User Menu Graphics Horizontal & Vertical Position Adjust-
ment ......................................................................... 103

TVP-23 1
Introduction
Technology
Silicon Crystal Reflective Display (SXRD)
SXRD is Sony’s adaptation of Liquid Crystal on Silicon (LCoS) micro-
display technology. The SXRD technology is similar to the LCD
technology use in previous rear projection and direct TV products in that
is uses liquid crystal materials to pass and block light to form the picture
you see, however, this is where the similarities stop.
The primary differences between SXRD and the standard LCD
technologies are as follows.
LCD Technology
o Is a transmissive device – light is directed into the rear
of the panel, the passes through the panel and the liquid
crystal material. The light only passes through the liquid
crystal material once. The liquid crystals modulate the
light as it passes through the panel.
o The liquid crystals when layered from a 90-degree
angular orientation after so many layers. Therefore, light
is completely passed when no potential is applied to the
liquid crystals.
o The Panel depth is thicker then the SXRD technology
because the LCD drives and liquid crystal material are
place on separate layers in the panel.
o The distance between the pixels is greater than the SXRD
technology (causing the screen-door effect) because the
matrix wiring and switching elements must be covered
with a solid plastic grid structure.
DICHROIC MIRRORS
LAMP
TO MIRROR
POLARIZERS
LCD PANEL
Backlight
Source
LCD OPTICS BLOCK
LCD NATURAL LAYERING LIGHT EFFECT
NOTE: Light passes through
the SXRD panels and is
reflected back out of the
panels
NOTE: No Potential
Applied to LCD Panel

TVP-23 2
Introduction
• SXRD Technology
o Is a reflective device – light is directed into the panel
from the front, the light passes through the liquid crystal
material, and is then reflected back out through the same
liquid crystal material by tan aluminized substrate. The
light passes through the liquid crystal twice. The liquid
crystals modulate the light with the picture information on
the way back out of the panel.
o The liquid crystals when layered maintain the same angular
orientation between layers. Therefore, light is blocked
when no potential is applied to the liquid crystals.
o Panel depth is greatly decreased due to the LCD drivers
and the liquid crystal materials are jointly sealed directly to
the silicon chip substrate
o The distance between pixels is greatly diminished (no
screen-door effect) due to the fact that all the matrix wiring
and switching elements a placed behind the reflective
substrate.
Backlight
Source
SXRD OPTICS BLOCK
SXRD NATURAL LAYERING LIGHT EFFECT
NOTE: No Potential
Applied to LCD Panel
- +
VOLTAGE EFFECT ON LCD LIQUID CRYSTALS
NOTE: Full potential
applied means no
LCD twist, and
complete blockage
of light by the front
filter
Backlight
Source
EFFECT OF A POTENTIAL ON LCD PANEL

TVP-23 3
Introduction
Features
Advanced Iris
The Average Picture Level (APL) drives the Advanced Iris operation. APL
is defined in video systems, as the average level of the picture signal
during active scanning time integrated over a frame period; defined
as a percentage of the range between blanking and reference white
level. Basically, the video scene is measure for overall brightness
level and the iris’s aperture opening is increased of decreased to
either increase the whites in the brighter scenes, or decrease the
blacks in the darker scenes. Subsequently, achieving a contrast
ratio for the SXRD models approaching 10,000:1.
500 cd/m2
0.025 cd/m2
250 cd/m2
0.05 cd/m2
Black
White
Black
White
Advanced Iris
Full ClosedFull Open
0 cd/m2
*
*Candela per Meter Square
ADVANCED IRIS LIGHT LEVEL CHART
Backlight
Source
- +
NOTE: Full potential
applied means full
SXRD LCD twist,
and complete
passage of light by
the front filter
VOLTAGE EFFECT ON SXRD LIQUID CRYSTALS
EFFECT OF A POTENTIAL ON SXRD PANEL

TVP-23 4
Introduction
PC Input
The 2006 SXRD-A models (KDS-50A2000, KDS-55A2000 and KDS-
60A2000) have a Personal Computer Input (PC-IN), which connects
directly to the PC 15 pin DIM 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 in the Owners Manual (Page 100). Table A provides
the suggested PC Input Signals for best display results due to the 60Hz
Vertical frequency.
Table A – PC Input Signal Compatibility Chart (Best Results)
Signal
Format
Horizontal
(Pixel)
Vertical
(line)
Horizontal
Frequency
(kHZ)
Vertical
Frequency (Hz)
VGA 640 480 31.5 60
SVGA 800 600 37.9 60
XGA 1024 768 48.4 60
WXGA 1280 768 47.8 60
SXGA 1280 1024 64 60
Windows XP™ Navigation Sequence to Change Vertical Frequency is
as follows.
Control Panel > Display > Settings > Advance > (ATI) Displays
> Monitor > Monitor Attributes > Select Vertical Frequency
Specifications for 2006 SXRD-A Models
Models
KDS-50A2000
KDS-55A2000
KDS-60A2000
Television System Compatibilities
NTSC: National Television Systems Committee Signals (American TV
Standard)
ATSC: Advanced Television Systems Committee Signals (8VSB)
Cable TV: ANSI/SCTE 07 2000 Standard (QAM)
Channel Coverage
Terrestrial (analog): 2 - 69
Cable TV (analog): 1 - 125
Terrestrial (digital): 2 - 69
Cable TV (digital): 1 - 135
Screen Size
KDS-50A2000: 50 inches
KDS-55A2000: 55 inches
KDS-60A2000: 60 inches
SXRD Panels
3 SXRD Panels
- 0.61 inch per panel
- 6,220,800 total pixels (2,073,600 per panel x 3)
Resolution - 1920 x 1080 pixels

TVP-23 5
Introduction
Lamp
Ultra High Pressure Lamp, 120W, XL-5200
Recommended Lamp Replacement: after Approx. 8000 hours of use
Speaker Output
12W + 12W
Power Requirements
120V AC, 60Hz
Power Comsumption
In Use - 210W
In Standby - Less than 0.5W

TVP-23 6
Technical Triage & Troubleshooting Information
2006 SXRD-A Initial Contact Analysis
Flowchart A
Start
Initial Analysis
Is Video
Missing or
Distorted All
Inputs?
No
Yes
No
No
No
No
Yes
Yes
Yes
Yes
GO TO
Power-ON
Troubleshooting
Flowchart B
Page 16
GO TO
Protection Mode
Troubleshooting
Flowcharts C1, 2, 3, 4, 5
Pages 17-21
GO TO
Missing or Distorted
Video Troubleshooting
Flowchart D
Page 22
GO TO
Individual Video Input
Troubleshooting
Flowchart E
Page 23
GO TO
Missing or Distorted
Audio Troubleshooting
Flowchart G
Page 25
No Problem
Found
Unit Fully
Operational
A
NOTE: Reference Chapter 1, Pages 34 - 36 for
detailed flowchart step descriptions
Does
Green “Power”
LED
Turn ON?
Is
“Power” LED
Flashing
Red?
Is
Video Missing
or Distorted on
Individual
Inputs?
Is
Audio Missing or
Distorted on
All or Indivivdual
Inputs?
GO TO
Optical Block
Troubleshooting
Flowchart F
Page 24
Does
“Power” LED
Continously Flash
Green?
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
QM-Board
A-1205-237-A

TVP-23 7
Triage & Troubleshooting Information
Sony KDS50/55/60A2000 - SXRD Technical Triage Summary Sheet
Before you make the service call…
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Select the model from the chart.
4. Bring all the boards listed for that symptom.
5. Follow the troubleshooting charts in the technical guides to isolate the board.
6. Chart Color Code
RED DOT: Most Likely defective part
BLUE Triangle: Possible Defective part
BLACK TEXT: Board and Part # that may correct the symptom
7) The Troubleshooting Flowchart required to determine the actual defective part is listed for each column in the last row of each table.
Board Reference
Symptoms - (dead set) Video - missing or distorted KDS50A2000 KDS55A2000 KDS60A2000
2
Blinks
3
Blinks
4
Blinks
5
Blinks
6
Blinks
7
Blinks
8
Blinks
9
Blinks
Continuous
Blink - Green
Power LED
Continuous
Blink - Red
Lamp LED
No Green Power
LED (Dead Set)
Video 1- 8,
NTSC only ATSC only HDMI only PC-IN only Video 2 only Part # Part # Part #
S1 ��A-1166-582-A
S2 ��A-1166-583-A
G������A-1186-654-A
Lamp ��XL-5200 XL-5200 XL-5200
T�A-1166-584-A
OpBlock �A-1203-196-A A-1203-195-A A-1203-194-A
A1 � � � ���� � �A-1205-146-A A-1205-145-A A-1205-144-A
Fan Panel �8-835-873-11
Fan Lmp ��8-835-860-31
Fan Chassis �1-787-333-11
B1 ��A-1205-147-A
QM ��A-1205-237-A
QT �A-1206-154-A
H3 �A-1166-581-A
Lamp Driver �1-474-012-21
20 Pin Harness �1-910-028-26
Thermistor �*�*1-803-586-41
Flowchart
Reference C1 C1 C2 C3 C3 C4 C4 C5 B C1 B D, E, & F D, E, & F D, E, & F D, E, & F D, E, & F
Problem Temp L. Cover Fan Lmp Drv Low B+ Audio OVP Data
* 2 minute delay before 6 blinks
Triage Summary Chart

TVP-23 8
Triage & Troubleshooting Information
2006 SXRD-A Power-ON Troubleshooting
Flowchart B
Unit will Not
Power-ON
Does
“Power” LED
begin Flashing
GREEN?
What is the
State of the Green
“Power” LED?
No
OK
Yes
Glows Steady Green
(after ~10sec)
No
Excessive (>~44sec)
Green LED Flash
Press
TV or Remote
POWER
Button
Initial Power -ON OK
Troubleshoot Video, Lamp,
or Audio Problem
Check STBY 5V at
CN6005/pin 1
No
Yes
B
Check Connections
between
A1 Board CN8803
& QM-Board CN7306
Confirm Unit is
securely plugged into
an active AC Outlet
Is AC 110V
Present
at CN6001
?
Replace
AC-Power Cord
1-791-192-31
OK
Yes
GO TO
FlowChart C1, 2, 3, 4, 5
Protection Modes
Page 14-18
Red LED
Flashes
NOTE: Reference Chapter 4, Pages 44 - 45 for
detailed flowchart step descriptions
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
QM-Board
A-1205-237-A
Primary Failure Component
Replace
Thermo Fuse
1-803-586-41
Confirm Remote
Control Operation
G-Board
Ref. Figure 4-5
Check STBY 5V
CN6005 pin 3
Thermo Fuse TH6300
Check Main Fuse
F6001 (0 ohms)
Is voltage
5V
Present?
Replace
G-Board
A-1186-654-A
No
Yes
Check 10.5V at
CN7306/pin 1
Is voltage
10.5V
Present?
Yes
No
QM-Board
Ref. Figure 4-6
Is voltage
5V
Present?
Is
Relay Click
heard at
Power ON
?
Replace
G-Board
A-1186-654-A
No
Yes
G-Board
Ref. Figure 4-5
NOTE: Confirm all
connections between
circuit boards before
replacing
G-Board
Ref. Figure 4-5
GO TO
FlowChart C3 (6X)
Protection Modes
Page 54

TVP-23 9
Triage & Troubleshooting Information
2006 SXRD-A Protection Mode
Troubleshooting Flowchart C 1
Unit Shuts OFF
RED LED
Flashing
LAMP LED
Flashing
Replace LAMP
3X Flash
Pattern
(Lamp Door)
Check that
Lamp Door
is securely seated &
undamaged
Are
Both wires on
connector 0V
Lamp-Door switch
OK?
Check
T- Board Lamp-Door Switch
Reference Test Point Diagram
Figure 3-3
Replace T- Board
A-1166-584-A
Yes No
C1
Lamp Part Number
KDS-50A2000 – XL-5200
KDS
-55A2000 – XL-5200
KDS
-60A2000 – XL-5200
2X Flash
Pattern
(Temperature )
Clear unit ventilation areas
and confirm adequate local
room temperature
No
Replace
S1 & S2 Boards
(S1) A-1123-582-A
(S2) A-1166-583-A
“TV Temperature is High”
is displayed before Shutdown
for 1.5 mins. then 2X
Does unit still
shutdown (2X)?
Problem
Solved
Yes
Does
unit still
shutdown (2X)
?
Replace
Optical Block
A-1203-196-A (50")
A-1203-195-A (55")
A-1203-194-A (60")
Problem
Solved
Yes
No
Confirm that High
Voltage Lamp
connector & Red wires
are secure and
undamaged
OK
Does unit still
shutdown (2X)?
Problem
Solved
Yes
No
NOTES:
1) Except for the Lamp LED all flash patterns will
occur on the Front Panel
Red “Power” LED
2) All voltage are measured prior to unit shutdown
3) Reference Chapter 5, Pages 57 - 59 for detailed
flowchart step descriptions
Does
unit Shut-Down
Immediately after
Power ON
?
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Yes
No
Temperature Thresholds
Lamp 70°c
SXRD Panel 90°c
Ambient 47°c
Is
Lamp Door
Physically
OK?
Replace
Lamp Door
X-2109-529-1
Yes
No
NOTE: Confirm all
connections between
circuit boards before
replacing

TVP-23 10
Triage & Troubleshooting Information
2006 SXRD-A Protection Mode
Troubleshooting Flowchart C 2
Unit Shuts OFF
RED LED
Flashing
C2
4X Flash
Pattern
(Fan Rotation )
Check Fan #3 Drive
(DR) and Feedback(FB)
Voltage Levels
Reference Test Point
Diagram Figure
3-3
*Before Shutdown*
Is
(FB) voltages
higher than
1V?
Replace
The LCD Panel
Fan #3
8-835-873-11
Yes
No
Visually check rear Fans #(1 & 2 )
for rotation
*Before Shutdown*
Check Fan Drive
Voltage (DV) Levels
Reference Test Point Diagram
Figure 3-3
*Before Shutdown*
Are
(DV) voltages
8V & 6V
?
A1-Board
Yes
Are both fans
rotating?
Yes
No
Fan Part Numbers
Chassis Fan #1…….1-787-333-11
Lamp Fan #2………..8-835-860-31
LCD Panel Fan
#3….8-835-873-11
Drive
Feedback
No
NOTES:
1) Except for the Lamp LED all flash
patterns will occur on the Front Panel
Red “Power” LED
2) All voltage are measured prior to unit
shutdown
3) Reference Chapter 5, Pages 59 - 61 for
detailed flowchart step descriptions
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
G-Board (No 6V at CN6900)
A-1186-654-A
A1-Board (No 6V at CN8801)
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Check Fan Feedback
Voltage (FB) Levels
Reference Test Point Diagram
Figure 3-3
*Before Shutdown*
Are (FB)
voltages
Greater Than
1V?
Replace
Lamp Fan #2 (< 1V at CN6900)
8-835-860-31
Chassis Fan #1 (< 1V at CN8801)
1-787-333-11
Yes
No
Replace
Non-rotating
Fan
NOTE: Confirm all
connections between
circuit boards before
replacing

TVP-23 11
Triage & Troubleshooting Information
6X Flash
Pattern
(Low B+)
Unit Shuts OFF
RED LED
Flashing
2006 SXRD-A Protection Mode
Troubleshooting Flowchart C 3
Check Voltage at
C6936
*Before Shutdown*
Is voltage
11V
Present?
No
G-Board
C3
Yes
NOTES:
1) Except for the Lamp LED all flash patterns will
occur on the Front Panel
Red “Power” LED
2) All voltage are measured prior to unit shutdown
3) Reference Chapter 5, Pages 61 - 63 for detailed
flowchart step descriptions
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
G-Board
A-1186-654-A
Reference
Figure 2-5
5X Flash
Pattern
(Lamp Driver)
Check
Supply Voltage
At
X1 Connector
*Before Shutdown*
Is Voltage
380V
Present?
Check
Lamp-ON Voltage
JS1/pin 4
*Before Shutdown*
Does
voltage go low
2.2V to
1V?
Replace
Lamp
Driver Block
1-474-012-11
No
Yes
Yes
No
Lamp
Driver Block
Does
Spark Gap
Light?
3 Attempts
20 Sec. Intervals
Replace LAMP
Yes
No
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
G-Board
A-1186-654-A
Lamp Part Number
KDS-50A2000 – XL-5200
KDS
-55A2000 – XL-5200
KDS
-60A2000 – XL-5200
Lamp
Driver Block
NOTE: Confirm all
connections between
circuit boards before
replacing
Is voltage
>12V
Present?
Is voltage
5V
Present?
Check Voltage at
PH6401/pin 4
*Before Shutdown*
Yes
Yes
No
No
Is
0, 1, or 2
Relay clicks
Heard before
Shutdown
?
2
1
G-Board
Reference
Figure 2-5
Reference Figure 3-4
for Test Point
Locations
Check “AC-Relay”
Voltage at C6400
*Before Shutdown*
Reference
Figure 2-5
Is voltage
0.6V
Present?
G-Board
Replace
G-Board
A-1186-654-A
0
Yes
No

TVP-23 12
Triage & Troubleshooting Information
Unit Shuts OFF
RED LED
Flashing
2006 SXRD-A Protection Mode Troubleshooting
Flowchart C4
C4
NOTES:
1) Except for the Lamp LED all flash patterns will
occur on the Front Panel
Red “Power” LED
2) All voltage are measured prior to unit shutdown
3) Reference Chapter 5, Pages 64 – 65 for detailed
flowchart step descriptions
7X Flash
Pattern
(Audio Output)
Is
Audio heard
before
Shutdown
?
Yes
No
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
G-Board
A-1186-654-A
8X Flash
Pattern
(OVP 6.5V)
Check 6.5V at
CN6901/pins 4-6
*Before Shutdown
Is voltage
6.5V
Present?
Check
Speakers &
Connections
Do
Speakers
Measure
8 ohms
?
Is
voltage = 6.5V
(not >)
Present?
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
G-Board
A-1186-654-A
Yes
No
Yes
Replace
Speaker(s)
1-826-475-11
No
Yes
No
Check 6.5V at
CN6901/pins 4-6
*Before Shutdown
NOTE: Confirm all
connections between
circuit boards before
replacing

TVP-23 13
Triage & Troubleshooting Information
9X Flash Pattern
Microprocessor I 2C
Communications error
Check & Secure the
following Inter-board
connections
S1 to A1-Brds
S2 to A1-Brds
C to B
1-Brds
Is voltage
3.3V
Present?
Problem
Solved
No
Yes
Unit Shuts OFF
RED LED
Flashing
2006 SXRD-A Protection Mode Troubleshooting
Flowchart C5
C5
Check D3.3V Voltage Supply
to S1 & S2 boards
CN3150/pin 1 (S1)
Ref. Figure
3-3 (S2)
“Before Shutdown”
Does unit
still Shutdown
9X?
Replace
S1 & S2 Boards
S1 A-1123-098-A
S2 A-1123-099-A
OK
Yes
No
Does unit
still Shutdown
9X?
Problem
Solved
No
Yes
Does unit
still Shutdown
9X?
Check 6.5V
Voltage Supplies to
C-Board
CN6901/pins 4-6
“Before Shutdown”
Is
voltage
6.5V
Present
?
Problem
Solved
No
Yes
No
Yes
G-Board
NOTE:
Also
referred to as
“Panel Error”
NOTE:
Includes C-Board
NOTES:
1) Except for the Lamp LED all flash patterns will
occur on the Front Panel
Red “Power” LED
2) All voltage are measured prior to unit shutdown
3) Reference Chapter 5, Pages 65 - 66 for detailed
flowchart step descriptions
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
Optical Block
A-1203-196-A (50")
A-1203-195-A (55")
A-1203-194-A (60")
Replace
G-Board
A-1186-654-A
NOTE: Confirm all
connections between
circuit boards before
replacing

TVP-23 14
Triage & Troubleshooting Information
2006 SXRD-A Missing or Distorted Video
Troubleshooting Flowchart D
Missing or
Distorted Video
Is
Video Missing or
Distorted on All
Inputs?
Is RED
“Power” or
“Lamp” LED
Flashing?
No
Yes
No
Yes
Yes
Can
User Menu be
Displayed
?
No
NOTE:
Check
connections between
B1-Brd -and C -Brd
GO TO
Individual Input
Troubleshooting
Flowchart E
Page 20
GO TO
Protection Mode
Troubleshooting
Flowcharts C1,2,3, 4, 5
Page 14-18
GO TO
Optical Block
Troubleshooting
Flowchart F
Page 21
D
All Inputs:
Video 1,2,3 (Composite & S-Video )
Video 4, 5 (Component Video)
Video 6, 7 (HDMI)
Video 8 (PC IN)
ATSC, NTSC Tuners (RF)
NOTE:
Reference Chapter 6, Pages 75 – 77 for detailed
flowchart step descriptions
“Power” LED Glows Steady
Green & No Lamp LED
Replace
B1-Board
A-1205-147-A
Is
Video Missing
or Distorted
?
Missing
Distorted
Is
Single Pixels
or Complete Line
of Pixels
missing?
Replace
Optical Block
A-1203-196-A (50")
A-1203-195-A (55")
A-1203-194-A (60")
Does
Small Fussy Spot
Move with Upper
Chassis
Movement?
Clean
Screen Frame Assembly
Clean
Optic Block & LCD Panels
Yes
Yes
No
No
Can
“Panel” Service
Mode Patterns be
Displayed
?
Yes
No
NOTE: Confirm all
connections between
circuit boards before
replacing
Is
Distortion
Present in
“Panel” Service
Mode Patterns
?
Replace
B1-Board
A-1205-147-A
No
Yes
Distortion is small
Fuzzy Spot(s)

TVP-23 15
Triage & Troubleshooting Information
2006 SXRD-A Individual Input Troubleshooting
Flowchart E
Individual Inputs
Check
External Device
and
Connections
Swap Devices and
connections
Bad
Good
-Video 1, 2, 3, 4, 5, 8, & NTSC (Missing or Distorted)
-ATSC Tuner & HDMI (Video 6 & 7) (OK)
TV OK
Repair External
Devices or
Connections
E
HDMI (Video 6 & 7)
Distorted or Missing
(Only)
Replace
QT-Board
A-1206-154-A
All Inputs:
Video 1,2,3 (Composite & S-Video)
Video 4, 5 (Component Video )
Video 6, 7 (HDMI)
Video 8 (PC IN)
ATSC, NTSC Tuners (RF)
PC IN (Video 8)
Distorted or Missing
(Only)
NOTE: Reference Chapter 6, Page 80 for detailed
flowchart step descriptions
Replace
A1-Board
A-1205-146-A (50")
A-1205-145-A (55")
A-1205-144-A (60")
Replace
B1-Board
A-1205-147-A
-Video 1, 2, 3, 4, 5, 8, HDMI & NTSC (OK)
-ATSC Signal(Missing or Distorted)
Replace
QM-Board
A-1205-237-A
ATSC & NTSC Signals
Missing or Distrorted
(Only)
Video 2
Missing or Distorted
(Only)
Replace
B1-Board
A-1205-147-A
Replace
H3-Board
A-1166-1581-A
Primary Failure Component
NOTE: Confirm all
connections between
circuit boards before
replacing

TVP-23 16
Triage & Troubleshooting Information
2006 SXRD-A Optical Block
Troubleshooting Flowchart F
Is voltage
16.5V
Present?
No
Yes
Optical Block
Troubleshooting
Check Voltage at
CN6901/pin 1
G-Board
“Before Shutdown”
F
Does
OSD or Patterns
Display?
No
Turn ON
“Panel” Service Mode
OSD or Patterns
Yes
In this case there is LCD
drive, however, no video.
In this case there is no
LCD drive to the panels.
Bright Raster is
Displayed &
Audio OK
Dark Raster is
Displayed &
Audio OK
Use “JUMP” button on
remote to display Panel
OSD
NOTE: Reference Chapter 6, Pages 81 for detailed
flowchart step descriptions
Replace
Optical Block
A-1203-196-A (50")
A-1203-195-A (55")
A-1203-194-A (60")
Replace
B1-Board
A-1205-147-A
Replace
G-Board
A-1186-654-A
NOTE: Confirm all
connections between
circuit boards before
replacing