Sony KLV-20G400A Service Manual ▷ View online
LCD COLOR TELEVISION
SERVICE MANUAL
LAX2
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
9-883-773-03
KLV-20G400A
RM-YA009
CANADA
KLV-20G400A
RM-YA009
MEXICO
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 3/2008
:UPDATED ITEM
REVISION
DATE
SUBJECT
3/2008
No revisions or updates are applicable at this time.
3/2008
Reissue entire manual to include Wire and PWB Diagrams.
10/2008
Removed Self Diagnosis logo from Front Cover and Self Diagnostic Function page.
Replaced pages 2 and 9.
☛
LCD COLOR TELEVISION
SERVICE MANUAL
LAX2
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
9-883-773-03
KLV-20G400A
RM-YA009
CANADA
KLV-20G400A
RM-YA009
MEXICO
KLV-20G400A
RM-YA009
3
KLV-20G400A
KLV-20G400A
TABLE OF CONTENTS
SECTION TITLE
PAGE
Specifi cations .........................................................................................................................................................................................................4
Warnings and Cautions ..........................................................................................................................................................................................5
Safety-Related Component Warning ......................................................................................................................................................................6
Safety Check-Out ...................................................................................................................................................................................................8
Self-Diagnostic Function .........................................................................................................................................................................................9
SECTION 1: DISASSEMBLY ....................................................................................................................................................................................... 10
1-1. Rear Cover Removal
....................................................................................................................................................................................10
1-2. Function Key Removal .................................................................................................................................................................................10
1-3. H3 Board Removal
.......................................................................................................................................................................................11
1-4. H2 Board, IR Lens, and LED Lens Removal ................................................................................................................................................11
1-5. A Board and G Board Removal ....................................................................................................................................................................12
1-6. Stand Removal
.............................................................................................................................................................................................13
1-7. Speakers, LCD Panel, and Main Bracket Removal .....................................................................................................................................13
Wire Dressing .......................................................................................................................................................................................................14
Overall
View
.................................................................................................................................................................................................14
SECTION 2: SERVICE ADJUSTMENTS ..................................................................................................................................................................... 15
2-1. Resetting to Factory Defaults after Board Replacement ..............................................................................................................................15
SECTION 3: DIAGRAMS ............................................................................................................................................................................................. 16
3-1. Circuit Boards Location ................................................................................................................................................................................16
3-2. Printed Wiring Boards and Schematic Diagrams Information ......................................................................................................................16
3-3. Block Diagram
..............................................................................................................................................................................................18
3-4. Connector Diagram ......................................................................................................................................................................................19
3-5. Frame Diagram ............................................................................................................................................................................................20
3-6. Schematics and Supporting Information ......................................................................................................................................................21
A Board Schematic Diagram (1 of 11) .......................................................................................................................................................... 21
A Board Schematic Diagram (2 of 11) .......................................................................................................................................................... 22
A Board Schematic Diagram (3 of 11) .......................................................................................................................................................... 23
A Board Schematic Diagram (4 of 11) .......................................................................................................................................................... 24
A Board Schematic Diagram (5 of 11) .......................................................................................................................................................... 25
A Board Schematic Diagram (6 of 11) .......................................................................................................................................................... 26
A Board Schematic Diagram (7 of 11) .......................................................................................................................................................... 27
A Board Schematic Diagram (8 of 11) .......................................................................................................................................................... 28
A Board Schematic Diagram (9 of 11) .......................................................................................................................................................... 29
A Board Schematic Diagram (10 of 11) ........................................................................................................................................................ 30
A Board Schematic Diagram (11 of 11) ........................................................................................................................................................ 31
H1 Board Schematic Diagram ...................................................................................................................................................................... 34
H2 Board Schematic Diagram ...................................................................................................................................................................... 35
H3 Board Schematic Diagram ...................................................................................................................................................................... 36
SECTION 4: EXPLODED VIEWS ................................................................................................................................................................................ 37
4-1. Rear Cover Assembly and Stand Assembly ................................................................................................................................................37
4-2. Chassis ........................................................................................................................................................................................................38
4
KLV-20G400A
KLV-20G400A
SPECIFICATIONS
Design and specifi cations are subject to change without notice.
110V - 240V AC, 50/60Hz
Video (IN) 1/2
S Video (4-Pin Mini DIN)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
Video
1.0 Vp-p, 75ohms unbalanced, sync negative
Audio
500 mVrms (100% modulation)
Impedance:47
kilohms
COMPONENT IN 3
YP
YP
B
P
R
(Component Video)
Y:1.0 Vp-p, 75 ohms unbalanced, sync negative
P
B
:0.7 Vp-p, 75 ohms
P
R
:0.7 Vp-p, 75 ohms
Signal format: 480i, 480p, 720p, 1080i
AUDIO
500 mVrms (100% modulation)
Impedance:
47
kilohms
AUDIO OUT:
500 mVrms (100% modulation)
HEADPHONES:
Stereo
mini
jack
Impedance:
16 ohms
Power Requirements
Trademark Information
“BRAVIA” and
,
, BRAVIA
Theatre Sync and DMPORT are trademarks or
registered marks of Sony Corporation.
registered marks of Sony Corporation.
Television system
NTSC American TV Standard
Channel coverage
Analog
Terrestrial 2-69
Cable 1-135
Cable 1-135
Antenna
75-ohm external terminal for VHF/UHF
Panel System
LCD (Liquid Crystal Display) Panel
Display Resolution (horizontal x vertical):
640 dots x 480 lines
Screen Size (measured diagonally)
approx. 20 inches
Supplied Accessories
Remote Commander RM-YA009
Two Size AA (R6) Batteries
AC Power Cord
Cable Band
Operating Instructions
Quick Setup Guide
Warranty Card
Two Size AA (R6) Batteries
AC Power Cord
Cable Band
Operating Instructions
Quick Setup Guide
Warranty Card
Optional Accessories
Headphones Plug Adapter
Connecting Cables
Support Belt Kit
Wall-Mount Bracket
SU-WL100
Connecting Cables
Support Belt Kit
Wall-Mount Bracket
SU-WL100
All measurements are approximations.
KLV-20G400A
in use
48W
in standby
Less than 1W
3W + 3W
mm
45 x 130 mm
in
1
13/16
x 5
1/8
in
with stand
mm
609 x 427 x 196 mm
in
24 x 16
7/8
x 7
3/4
in
without stand
mm
609 x 384 x 80 mm
in
24 x 15
1/8
x 3
1/4
in
Mass
with stand
kg
8.7 kg
lbs
19 lbs 2
7/8
OZ
without stand
kg
7.5 kg
lbs
16 lbs 8
1/2
OZ
Dimensions (W x H x D)
Power Consumption
Speaker Output (W)
Dimensions (W x H x D)