Sony Bravia KLV-20G400A User manual

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
Specifications .........................................................................................................................................................................................................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 specifications 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
YPBPR(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.
Television system
NTSC American TV Standard
Channel coverage
Analog
Terrestrial 2-69
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
Optional Accessories
Headphones Plug Adapter
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 113/16 x 51/8 in
with stand
mm 609 x 427 x 196 mm
in 24 x 167/8 x 73/4 in
without stand
mm 609 x 384 x 80 mm
in 24 x 151/8 x 31/4 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)

5
KLV-20G400A
KLV-20G400A
WARNINGS AND CAUTIONS
CAUTION
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other
than that contained in the operating instructions unless you are qualified to do so.
CARRYING THE TV
To avoid dropping the TV and causing serious injury, be sure to follow
these guidelines:
sBefore carrying the TV, disconnect all cables.
sCarrying the large size TV requires two or more people.
sWhen you carry the TV, place your hand as illustrated and hold it
securely. Do not put stress on the LCD panel.
sWhen lifting or moving the TV, hold it firmly from the bottom. Place
your palm directly under the panel.
sWhen carrying, do not subject the TV to shocks or vibration, or
excessive force.
sPlace your palm directly underneath, but do not squeeze the
panel’s speaker grill area.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of this receiver is
directly connected to the ac power line.
!SAFETY-RELATED COMPONENT WARNING!!
Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace
these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that
are critical for safe operation are identified in this manual. Follow these procedures whenever critical components are replaced or improper operation is
suspected.
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifié seulement. Pour prévenir le risque de choc électrique, ne pas faire
l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifié faire ainsi.
POUR TRANSPORTER LE TÉLÉVISEUR
sLe transport du téléviseur doit être effectué par au moins deux
personnes.
sLorsque vous le transportez, placez vos mains tel que cela est illustré
et tenez solidement l’appareil. N’appliquez pas de pression sur
l’écran ACL.
sLorsque vous transportez le téléviseur, ne le soumettez pas à des
chocs ou vibrations, ni à une force excessive.
sPositionnez votre paume directement sous l’appareil et veillez à
ne pas exercer de pression contre la grille des haut-parleurs
du panneau.
Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le
chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
!ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d’une
importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le
present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance est critique pour la securite du fonctionnement
sont identifies dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.

6
KLV-20G400A
KLV-20G400A
SAFETY-RELATED COMPONENT WARNING
There are critical components used in LCD color TVs that are important for safety. These components are identified with shading and
!
mark on the schematic diagrams and the electrical parts list. It is essential that these critical parts be replaced only with the part number
specified in the electrical parts list to prevent electric shock, fire, or other hazard.
NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and
labor guarantee.
USE CAUTION WHEN HANDLING THE LCD PANEL
When repairing the LCD panel, be sure you are grounded by using a wrist band.
When installing the LCD panel on a wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.
To avoid damaging the LCD panel:
 do not press on the panel or frame edge to avoid the risk of electric shock.
do not scratch or press on the panel with any sharp objects.
do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
do not expose the LCD panel to direct sunlight.
avoid contact with water. It may cause a short circuit within the module.
disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms.)
always clean the LCD panel with a soft cloth material.
use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
LEAKAGE CURRENT HOT CHECK CIRCUIT

7
KLV-20G400A
KLV-20G400A
The circuit boards used in these models have been processed using
Lead Free Solder. The boards are identified by the LF logo located
close to the board designation e.g. H1 etc [ see example ]. The
servicing of these boards requires special precautions to be taken as
outlined below.
example 1
It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints.
Lead Free Solder is available under the following part numbers :
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade.
This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
For more information on the use of Lead Free Solder, please refer to
http://www.sony-training.com
rebmuntraP retemaiD skrameR
91-500-046-7mm3.0gK52.0
02-500-046-7mm4.0gK05.0
12-500-046-7mm5.0gK05.0
22-500-046-7mm6.0gK52.0
32-500-046-7mm8.0gK00.1
42-500-046-7mm0.1gK00.1
52-500-046-7mm2.1gK00.1
62-500-046-7mm6.1gK00.1

8
KLV-20G400A
KLV-20G400A
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered
connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or
touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced. Be absolutely certain that
you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors,
that were installed during a previous repair. Point them out to the
customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
Leakage Test
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instructions.
2. A battery-operated AC milliampmeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low voltage scale.
The Simpson’s 250 and Sanwa SH-63TRD are examples of
passive VOMs that are suitable. Nearly all battery-operated digital
multimeters that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate
retaining screw on most AC outlet boxes is also at earth ground. If the
retaining screw is to be used as your earth ground, verify that it is at
ground by measuring the resistance between it and a cold-water pipe
with an ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt
trouble- light (not a neon lamp) between the hot side of the receptacle
and the retaining screw. Try both slots, if necessary, to locate the hot
side on the line; the lamp should light at normal brilliance if the screw
is at ground potential (see Figure B).
To Exposed Metal
Parts on Set
0.15 μF
Earth Ground
AC
Voltmeter
(0.75V)
Trouble Light
AC Outlet Box Ohmmeter
Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

9
KLV-20G400A
KLV-20G400A
SELF-DIAGNOSTIC FUNCTION
IMPORTANT:
The unit in this manual DOES NOT contain a self-diagnostic function. If an error occurs, the TV will not stay on. It is our recommendation that if a
repair is required for this set, the technician should bring both the A Board and the G Board to the customer location.
Control Buttons
PIC OFF/TIMER POWER
Description of LED Indictors
The unit in this manual DOES NOT contain a self-diagnostic function.

10
KLV-20G400A
KLV-20G400A
1-1. REAR COVER REMOVAL
SECTION 1: DISASSEMBLY
1Remove 2 screws from top of Rear Cover, +BVTP 3X10
2Remove 2 screws, +PSW M4X12
3Remove 4 screws from Terminal area, +BVTP 3X10
4Remove 2 screws, +PSW M4X12
5Remove 2 screws, +PSW M4X12
6Remove 8 screws from both sides of Rear Cover, -BVTP 4X12
NOTE: The Vesa Brackets are not included in the Rear Cover Assembly. If you are replacing the
Rear Cover you must proceed to step 7.
7Remove 4 screws to detach the 2 Vesa Brackets from the Rear Cover. Save the screws and the brackets
and put them into the replacement Rear Cover.
1-2. FUNCTION KEY REMOVAL
1Remove from Bezel
2Release hooks
3Disconnect one connector from the H1 Board.
65
4
2
3
1
Rear Cover
Bezel
1
2
3
Key Cover
Function Key
H1 Board
Bezel
7
Rear Cover
Vesa Breacket

11
KLV-20G400A
KLV-20G400A
1-3. H3 BOARD REMOVAL
1-4. H2 BOARD, IR LENS, AND LED LENS REMOVAL
1Remove 1 screw from the H3 Board.
2Disconnect one connector
2Remove 1 screw +PSW M3X6 and release the ground wire
1Remove 3 screws, +BVTP 3X10 from H2 Board
2Disconnect one connector
2
1
H3 Board
Bezel
3
1
2
LED Lens
H2 Board
Bezel
IR Lens

12
KLV-20G400A
KLV-20G400A
1-5. A BOARD AND G BOARD REMOVAL
1Remove 2 screws and release ground wire, +PSW M3X6
2Remove 2 screws from bottom of Main Shield, +FH 3X4
3Remove 4 screws, +PSW M3X6
4Remove 1 screw (+FH 3X4) and a Hex Nut from Tuner
5Remove 7 screws, +PSW M3X6
6Disconnect 6 connectors
7Remove 5 screws, +PSW M3X6
8Disconnect 8 connectors
9Release 1 PWB Holder
10 Slide out AC inlet with the G Board from the Main Bracket.
5
6
8
9
10
A Board
Main Bracket
B Board
Main Shield
7
4
2
1
3

13
KLV-20G400A
KLV-20G400A
1-7. SPEAKERS, LCD PANEL, AND MAIN BRACKET REMOVAL
1Remove 4 screws from Speakers, +BVTP4X12
2Remove 11 screws from Main Bracket, +BVTP 3X10
3Remove 4 screws from Main Bracket and LCD Panel, +PWH 3X12
2
3
1
1
Speaker
Speaker
Bezel
Main Bracket
LCD Panel
2
1
3
Stand Assembly
Main Bracket
1-6. STAND REMOVAL
1On a soft cloth, carefully place the TV set face down.
2Remove 2 screws, +PSW M4X12
3Lift the Stand Assembly away from the TV set.

14
KLV-20G400A
KLV-20G400A
WIRE DRESSING
OVERALL VIEW
H3 Board
Speaker (L)
Main Bracket
A BoardH1 BoardG Board
H2 Board
Speaker (R)

15
KLV-20G400A
KLV-20G400A
2-1. RESETTING TO FACTORY DEFAULTS AFTER BOARD REPLACEMENT
Traditional Service Mode is not available in this chassis. The only option for service technicians is to reset all of the settings to the Factory Default from
the Self Diagnostic screen.
CAUTION: Resetting the TV to the Factory Defaults will over-write all customer settings including Parental Lock setting.Before performing this reset,
contact the customer to determine what adjustments they have made.
1. Turn on the TV.
2. While holding down the button on the remote control, press the POWER button on the TV.
The Initial Setup screen displays.
3. Select the language for the TV, then press the button on the remote control.
4. To start Auto Program, press the button on the remote control to select OK.
NOTE: Allow 30+ minutes for Auto Program to complete.
5. Using the customers information, reset their adjustments.
On-Screen
cursor button
Select
button
RM-YA009
SECTION 2: SERVICE ADJUSTMENTS

16
KLV-20G400A
KLV-20G400A
SECTION 3: DIAGRAMS
3-1. CIRCUIT BOARDS LOCATION
3-2. PRINTED WIRING
BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in μF unless otherwise noted. pF : μμF 50WV or
less are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specified.
All resistors are in ohms. kΩ=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows: Pitch : 5mm
Rating electrical power :
1/4 W
1/4 W in resistance, 1/10 W and 1/16 W in chip resistance.
: nonflammable resistor
: fusible resistor
: internal component
: panel designation and adjustment for repair
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10MΩdigital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production
tolerances.
All voltages are in V.
S : Measurement impossibility.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
The components identified by shading and
!
symbol are critical for safety. Replace
only with part number specified.
The symbol indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
Les composants identifies per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifie.
Le symbole indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
H1
H3
AG
H2

17
KLV-20G400A
KLV-20G400A
G
D
S
B1 E1
C2
B2 C1E2
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
!§
!¶
!•
–
1
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2E1
B2 E2
C1
B1 C2E1
!ª
B1 E1
E2
C1(B2)
C2
@º
B1
E2
C1
C2
@™
@£
(B2)
E1
(B2)
E1
E2
B1
C2
C1
@¡
B1
E1
C2
B2
C1
E2
G
SS
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2C1(B2)
E2
B1
C1
C2E1(B2)
C2
B1
C1
E2E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.6
Transistor
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode Cathode
Common
Cathode Cathode
Common
Common
Common
Common
Cathode
Anode
Base Emitter
Collector
Base Emitter
Collector
Drain
Gate
Gate
Drain
Device Printed symbol Terminal name Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode Cathode
Anode Anode
Cathode
!£
Transistor
(FET)
Transistor
(FET)
!?
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode Cathode
Anode
Anode
*
REFERENCE INFORMATION
RESISTOR
: RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
: ADJUSTMENT RESISTOR
COIL
: LF-8L MICRO INDUCTOR
CAPACITOR
: TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE

18
KLV-20G400A
KLV-20G400A
3-3. BLOCK DIAGRAM
RF in
EEP ROM
24LC32
Main board
Ir
Rx
Micro
processor
Audio Out
CMO V201V1
LCD Panel
Power
Inverter
Remote
Controller
Flash
ROM
VBI
Analog Front End
Video
decoder
IR
I/F
I/O
Speaker
Headphone
Genesis
Hudson
(FLI30602)
Sound
Control
/Effect
Control
VOL + CH +Enter/
Input VOL - CH-
Power
Menu
Power AMP
TFA9800
3W+3W
Headphone
AMP
TTL
Video
Processor
CVBS
HDMI
I2S
Audio in
CVBS in
S-video in
Audio in
CVBS in
S-video in
YPrPb
Audio in
AC in
Reg. IC
12V
6.2V
4.2V
Reg. IC
Reg. IC
9V
5V
Reg. IC
5V
3.3V
Reg. IC
1.8V
TV Tuner
Sony: BTF-CA411Z
3W+3W

19
KLV-20G400A
KLV-20G400A
3-4. CONNECTOR DIAGRAM
G Board A Board
H2
SP(L)SP(R)
CN200
7P
11P
5P
4P
6P
FFC
2P2P
4P
CN801CN408 CN406
CN8102
CN401
CN802
CN403
CN201
CN901
CN9100
H1
CN201
H3

KLV-20G400A
20
KLV-20G400A
3-5. FRAME DIAGRAM
M/B
LAX2-G
07292-1
CN201
1 14V6
2 14V6
3 GND
4 6V5
5 6V5
6 GND
7 4V2
8 4V2
9 NC
10 GND
11 GND
CN200
14V6 1
14V6 2
GND 3
6V5 4
6V5 5
GND 6
4V2 7
4V2 8
NC 9
GND 10
GND 11
CN408
1 NC
2 NC
3 BL_EN
4 BRIGHT_ADJ
5 GND
POWER BD.
56.04060.110
CN401
1 LED_GREEN(PIC-OFF)
2 LED_AMBER(SLEEP)
3 NC
4 LED_GREEN(POWER SAVING)
5 3.3V
6 IR
7 GND
CN801
R+ 1
GND 2
NC 3
GND 4
L+ 5
CN9100
LED_GREEN(PIC-OFF) 7
LED_AMBER(SLEEP) 6
NC 5
LED_GREEN(POWER SAVING) 4
3.3V 3
IR 2
GND 1
CN201
NC 5
NC 4
BL_EN 3
BRIGHT_ADJ 2
GND 1
CN403
1 GND
2 ADC_IN1
3 ADC_IN2
4 POWER_KEY
5 3.3V
6 GND
CN901
GND 6
ADC_IN1 5
ADC_IN2 4
POWER_KEY 3
3.3V 2
GND 1
IR/LED BD.
07482-1
KEY BD.
07454-1
50 PAN5
49 PAN4
48 GND
47 GND
46 B0-N
45 B1-N
44 B2
43 B3
42 GND
41 B4
40 B5
39 B6
38 B7
37 GND
36 G0-N
35 G1-N
34 G2
33 G3
32 GND
31 G4
30 G5
29 G6
28 G7
27 GND
26 R0-N
25 R1-N
24 R2
23 R3
22 GND
21 R4
20 R5
19 R6
18 R7
17 GND
16 PANEL_DCLK
15 GND
14 PANEL_DE
13 GND
12 PANEL_VS
11 PANEL_HS
10 GND
9 5V
8 5V
7 5V
6 5V
5 GND
4 GND
3 PAN3
2 PAN2
1 PAN1
1 R+
2 GND
3 NC
4 GND
5 L+
SPEAKER
23.40363.001
PANEL
PANEL
5052001101
PAN5 1
PAN4 2
GND 3
GND 4
B0-N 5
B1-N 6
B2 7
B3 8
GND 9
B4 10
B5 11
B6 12
B7 13
GND 14
G0-N 15
G1-N 16
G2 17
G3 18
GND 19
G4 20
G5 21
G6 22
G7 23
GND 24
R0-N 25
R1-N 26
R2 27
R3 28
GND 29
R4 30
R5 31
R6 32
R7 33
GND 34
PANEL_DCLK 35
GND 36
PANEL_DE 37
GND 38
PANEL_VS 39
PANEL_HS 40
GND 41
5V 42
5V 43
5V 44
5V 45
GND 46
GND 47
PAN3 48
PAN2 49
PAN1 50
CN406
CN8102
4 HPL
3 HP
2 GND
1 HPR
CN802
HPL 1
HP 2
GND 3
HPR 4
EAR BD.
07456-1