lg 21FU3RL Service Manual

COLOR TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : CW81A

MODEL : 21FU3RL

21FU3RL-T3

website:http://biz.LGservice.com

Internal Use Only

- 2 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

CONTENTS

Contents ....................................................................................................2

Safety Precautions....................................................................................3

Specifications............................................................................................4

Adjustment Instructions...........................................................................5

Trouble Shooting ......................................................................................8

Block Diagram.........................................................................................13

Exploded View.........................................................................................14

Exploded View Parts List .......................................................................15

Replacement Parts List ..........................................................................16

SVC. Sheet...................................................................................................

- 3 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.

It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube. Do
not lift the Picture tube by it's Neck.

X-RAY Radiation

Warning:

To determine the presence of high voltage, use an accurate high
impedance HV meter.

Adjust brightness, color, contrast controls to minimum.
Measure the high voltage.
The meter reading should indicate

23.5 ± 1.5KV: 14-19 inch, 26 ± 1.5KV: 19-21 inch,

29.0 ± 1.5KV: 25-29 inch, 30.0 ± 1.5KV: 32 inch
If the meter indication is out of tolerance, immediate service and
correction is required to prevent the possibility of premature
component failure.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1MΩ and 5.2MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.

Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to

0.5mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.

Leakage Current Hot Check circuit

The source of X-RAY RADIATION in this TV receiver is the High
Voltage Section and the Picture Tube.
For continued X-RAY RADIATION protection, the replacement
tube must be the same type tube as specified in the
Replacement Parts List.

IMPORTANT SAFETY NOTICE

0.15uF

To Instrument's
exposed
METALLIC PARTS

AC Volt-meter

Good Earth Ground
such as WATER PIPE,
CONDUIT etc.

1.5 Kohm/10W

- 4 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

SPECIFICATIONS

Note : Specification and others are subject to change without notice for improvement.

1. Scope

This specification is applied to the CW81A Chassis.

2. Test and Inspection Method

1) performance : LGE TV test method followed.

2) Demanded other specification

- Safety: CB Spec.(EN60065)

- EMC: CE Spec.(EN55020,EN55013)

3. Test Condition

Each part is tested as below without special appiontment

1) Temperature : 20

± 5°C(77 ± 9°F), CST : 40 ± 5°C

2) Relative Humidity : 65

± 10%

3) Power Voltage : Standard input voltage 220V, 50/60Hz
* Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with B.O.M.

5) The receiver must be operated for about 20 minutes prior to
the adjustment.

Item Specification Remark

Receiving System PAL BG,DK,I / NTSC M(AV3.58/4.43) China/ Indonesia/ Thai/ Vietnam

PAL BG,DK,I / NTSC M(AV3.58/4.43) CIS
SECAM DK
PAL BG,DK,I / NTSC M(AV3.58/4.43) Asia/ Middle East/ Africa
SECAM BG,DK,L

Available Channel VHF : E2 ~ E12

UHF : E21 ~ E69
CATV : S1 ~ S20
HYPER : S21 ~ S41

Input Voltage 220V~, 50/60Hz East Asia

100-240V~, 50/60Hz Others
Market China, Indonesia, Thai, Vietnam, Asia/Africa
Screen Size 14 ~ 21 inch (Flat / Conventional)

21” Super slim/ultra slim
Aspect Ratio 4:3
Display Method CRT
Tuning System FVS
Operating Environment 1) Temp : 0 ~ 40 deg

2) Humidity : ~ 85 %

Storage Environment 3) Temp : -20 ~ 60 deg

4) Humidity : ~ 90 %

4. General Specification

- 5 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

1. Application Object

These adjustment instructions are applicable to CW81A/B
Chassis.

2. Notes

(1) Because this is a cold chassis, it is not necessary to use

an isolation transformer. However,operating it using a

transformer between the power supply line and chassis

input to prevent electric shock and to protect the test
instrument.

(2)All adjustments must be done in correct sequence.

However, for better productivity, it can be changed in a pre­permitted range.

(3) Environment conditions: If not specified, it must be done in

following conditions.

1) Temperature: 25±5°C

2) Humidity : 65±10%
(4) AC Voltage : 100-240V ±10%, 50/60Hz
(5) If not specified, the receiver must be operated for more

than 20 minutes prior to the adjustment.

(6) Signal: Received the standard color signal. (65dB±1dBuV)

PAL/SECAM : LG standard signal means the digital pattern
PAL_EU 05CH

(7) If not specified, APC ON is APC CLEAR(DYNAMIC).

3. AGC Voltage Adjustment

3-1. Necessary Instrument

: Digital Multi meter : 1 set

- Max Input Current : Over 1A/ Max Input Voltage : 500Vdc

- Measurement Range : 10mV-100mVdc/ Accuracy : 0.03%

3-2. Adjustment Preparation

1) Input in the 75Ω cable 65dB(±1dB) LG standard signal.

2) Connect the multi-meter to J105(AGC Check Marking)

3-3. Adjustment

(1) Press the “INSTART” key of factory remote control and

select “VP0 (RF AGC)” adjustment mode.

(2) Press the VOL +/-(

F/G)Key until the multi-meter shows

reading as shown below.

(3) CAUTION : Since the signal strength can be easily

changed by the condition of signal cable , you
need to check the signal strength frequently in
order to prevent misadjustment.

4. Screen Voltage Adjustment

4-1. Adjustment (Use factory remote control)

(1) Input in the 75Ω cable LG standard signal (Digital

Pattern,480NC)

(2) Press the “ADJ” key of factory remote control once to make

the TV set display horizontal line.

(3) Turn the screen volume on the FBT clockwise until the

horizontal line is visible and turn it counterclockwise until
horizontal line faintly visible.

(Exit screen voltage adjustment by press “Enter(

A)” key of

factory remote control.)

5. Purity and Convergence Adjustment

5-1. Purity Adjustment

(1) Adjustment Preparation

1) Receive Red Raster Pattern for purity adjustment.(51ch)

2) Demagnetize the CPT and Cabinet with a degaussing
coil.

(2) Adjustment

1) Pre-adjust the static convergence (STC) with the 4 and
6pole magnet.

2) If the horizontal Line is inline with CPT Mark,2-Pole
magnet should direct 3-9 o’clock direction

3) If not,direct 2-Pole magnet handle toward 6-12 o’clock
direction and adjust the Horizontal Line to fall onto the
mark opening the magnet at an angle.

4) Push the DY(deflection yoke) all the way to the CPT
funnel.

5) Turn the purity magnet(2-pole magnet) so that the
“green” color portion of left side and the “blue” color
portion on the right side have equal amount of
color.

6) Pull the DY slowly backward and fix it when the whole
screen becomes red. (The specified torque for fixing DY
screw should be 10Kg/cm.)

5-2. Convergency Adjustment

(1) Necessary Instrument

1) Degaussing Coil

2) Convergency fixing instrument (special tools)

(2) Adjustment Preparation

1) Operate the unit at the least 15 minutes before

adjustment.

2) Using degaussing coil,remove the stains on CPT &

Cabinet.

3) Received the Cross Hatch Pattern for Convergence

(09ch).

4) Let the Contrast in normal luminance level.

ADJUSTMENT INSTRUCTIONS

G R B

G R B

R

G R B

<Fig. 1>

<Fig. 2>

- 6 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

(3) Static Convergence (STC) Adjustment

1) Receive Cross Hatch Pattern (09CH).

2) Before adjusting Static Convergence(STC),adjust the
focus first seeing to it that the WHITE color picture
quality is sharp enough.

3) Converge the RED vertical line and BLUE vertical line in
unity(same line) by changing the angle between the 2
tabs of 4-pole magnet.

4) Converge the RED horizontal and BLUE horizontal line
unity(same line) by turning the 2 tabs of the 4-pole
magnet. At this time,do not change the angle between
the 2 tabs.

5) Converge the R,G,B vertical line in unity(same line) by
changing the angle between the 2 tabs of the 6-pole
magnet.

6) Converge the R,G,B horizontal line in unity(same line) by
turning the 2 tabs of the 6-pole magnet. At this time, do
not change the angle between the 2 tabs.

(4) Dynamic Convergence (DYC) Adjustment

1) Y-Axis Adjustment : Ad j u s t convergence of Y-axis

(vertical) by moving the deflection
yoke(DY) left and right.

2) X-axis Adjustment : Adj u s t convergence of X-axis

(horizontal) by moving the deflection
yoke(DY) up and down.

6. White Balance Adjustment

6-1. Necessary Instrument

(1) Au to White B a l ance Meter (Low/High light Pattern

generator)
(2) CRT Color Analyzer, CA-100 : 1set
(3) Factory Remote Control

6-2. Adjustment Preparation

: Prior to this adjustment, the Screen Voltage adjustment

should be finished.

6-3. Auto Adjustment

(1) Adjust the using Auto White Balance Meter.
(2) Enter CPU OFF mode by press the “IN-START” &”MUTE”

key of factory remote control in turn before adjustment.

Exit CPU OFF mode by press the “MUTE” key of factory
remote control after adjustment finished.
* In case there is excess RED color at screen voltage

adjustment, adjust it using “Volume -(

G)”Key of factory

remote control until the RED color disappear.

6-4. Manual Adjustment

(1) Adjust using white Balance meter and factory remote

controller.
(2) Enter into adjustment mode by pressing the INSTART key

of factory remote control.
(3) Use the CH

D, CHE Key to choose adjustment item.

(4) Use the VOL

F, VOLG Key to change item data.

(5) Adjustment Procedure

1) Make the picture luminance 45Ft-L by change the
“CONTRAST” and “BRIGHTNESS”.

2) Adjust X data of high light with R DRIVE and Y data of
high light with B DRIVE to have color temperature as
shown below.

3) Make the picture luminance 4.5Ft-L by change the
“CONTRAST” and “BRIGHTNESS”.

4) Adjust X data of low light with R BIAS and Y data of low
light with B BIAS to have color temperature as shown
below.

5) Repeat steps a~d until both low and high light have
same reading as shown below.

7. Focus Voltage Adjustment

This adjustment must be done after operating the TV set
receiver sufficiently.

7-1. Adjustment Preparation

Received the LG standard pattern (PAL : Digital Pattern,
480NC, 13CH, NTSC : Crosshatch pattern, Ch.09 ) and set
the picture condition on “APC ON” (CLEAR) mode.

7-2. Adjustment

Turn the focus volume on the FBT upper direction to have the
best focus vertical line (figure 1.(a)) and horizontal line (figure

1.(b)) as shown below.

8. SUB-BRIGHTNESS Adjustment

This adjustment must be done after the White balance
Adjustment.

8-1. Adjustment preparation

(1).NTSC

- Received LG standard Mono scope pattern (CH14).

- Set the picture condition on “APC ON” (CLEAR) mode.

(2). PAL

- Received PAL B/G 5CH pattern.

- Set the picture condition on “PSM ON” (DYNAMIC) mode.

MARKET COLOR TEMPERATURE X-AXIS Y-AXIS REMARK

ALL 13000 268 ± 5 273 ± 5

[ f i gur e 1- PAL]

(a)

(b)

[figure 1- NTSC]

- 7 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

8-2 Adjustment

(1) Press the “ADJ” key of the factory remote control twice to

enter to “SUB-BRIGHTNESS” adjustment mode.

(2) PAL MODEL : Change the Sub-Brightness data by

pressing the VOL

F,VOLG KEY so that the 1th, 2th Black

Level in gray scale of PAL B/G 05CH pattern have a little
bit of difference. (See figure 2)

8-3. Sub-Tint Adjustment

This adjustment has to be done only if the picture has bad tint
otherwise, it can be omitted if the picture has good tint.

(1) Received LG standard pattern signal (SMPTE, 2CH).
(2) Set the picture condition on “APC ON” (CLEAR) mode.
(3) Press the “ADJ” key of the factory remote control three

times to enter to “SUB-TINT” adjustment mode.

(4). Change the Sub-Tint data by pressing the VOL¢∏,VOL¢∫

Key until the upper and lower CYAN color becomes same
color.

9. Deflection setting data adjustment

These adjustment will be done by Auto Adjustment
Equipment.
For manual adjustment, it is also possible by the following
procedure.

9-1. Adjustment Preparation

(1) Deflection setting data adjustment can be done only with

remote control.

(2) Press the “INSTART” Key on the factory remote control

continuously to enter to Deflection Adjustment mode.

(3) Press the CH

D, EKey to select adjustment item.

(4) Press the VOL

F, G Key to change the data.

9-2. Adjustment

(1) Horizontal Position Adjustment

Select SVC02 (H-POS) and adjust so that the left and right
vertical line are symmetrical as possible.

(2) Vertical Position Adjustment

Select SVC02 (V-POS) and adjust so that the horizontal
center line coincide with geometric horizontal center of the
CPT.

(3) Vertical Size Adjustment

Select SVC02 (VA) and adjust so that the middle circle of
the Digital Pattern (480NC, 13CH) coincide with the
effective screen of CPT.

9-3. Adjustment (21” Super Slim, Ultra S/S Model)

(1) Vertical Position Adjustment

Select SVC02(V-POS) and adjust so that the horizontal
center line coincide with geometric horizontal center of the
CPT.

(2) Vertical Linearity Adjustment.

Select SVC02(V-LIN) and adjust so that the size of the
upper circle is alike with the one of the lower circle at LG
standard pattern signal (PAL : EU05CH, NTSC : 13CH).

(3) Vertical Size Adjustment.

1) NTSC :Select SVC02(VA) and adjust so that the middle
circle of the Digital Pattern (480NC, 13CH) coincide with
the effective screen of CPT.

2) PAL : Select SVC02(VA) and adjust so that the middle
circle of the Digital Pattern (PAL B/G 5CH) has 6~7mm
gaps from the effective screen of CPT.

(4) Horizontal Position Adjustment

Select SVC02(H-POS) and adjust so that the left and right
vertical line are symmetrical as possible.

(5) Horizontal Size Adjustment

Select SVC02(EW WIDTH) and adjust so that the outer line
of the left, right and the remotest grid will correspond to the
effective boundary surface.(The remotest grid, NTSC:
within 2.5 ~ 3.0 column, PAL: within 0 ~ 25%)

(6) Parabola Adjustment

Select SVC02 (EW PARAB) and adjust so that the vertical
line of the remotest grid at the left or right side of the screen
will be parallel to the vertical line of the center of screen

(7) Trapezoidal Adjustment

Select SVC02(EW TRAPE) and adjust so that the width of
the upper part of screen is alike with the one of the lower
part of screen.

(8) EW UPCOR/ LOCOR Adjustment

Select SVC02(EW UPCOR, EW LOCOR) and adjust so
that the vertical line in the four corners become straight
line.

(9) BOW Adjustment

Select SVC02(HP BOW) and adjust so that the vertical line
in the four corners become straight line.

[Fig.2] PAL B/G 05CH signal

1th VS 2th
BLACK LEVEL have a little bit of difference.

(In case of VIETNAM MODEL 2th VS 3th)

- 8 -

TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

1. TV FUNCTIONAL

2 TU/IF SECTION

J512, J544

- 9 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

3. VIDEO PROCESSING

Maneuver defectiveness

Maneuver defectiveness

In case of influx NOISE

- R/C is not operate

Maneuver defectiveness

J624, J625, C603, C604, C609,
C610, R605, R616, R611, R612

, J509

Q241,R247

No color

1, 2, 5

56, 57
52, 54

35, 36, 40

50~54

46~48

4, 9, 20, 24,
49, 62

17~23

LV762xx

4. SMPS PRIMARY

DB801(TS4805G),
DB802(D5SB60)

IC810(STR-W6553A(MONO)), (STR-W6554A(STEREO))

C852, R808, ZD851

- 10 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

5. SMPS SECONDARY SECTION

DB801(TS4805G),
DB802(D5SB60)

IC810(STR-W6553A(MONO)), (STR-W6554A(STEREO))

C852, R808, ZD851

6. VERTICAL SECTION

, STV9326

- 11 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

7. HORIZONTAL SECTION

L402, L403, L404, C401, C402, C412

8. SOUND PROCESSING SECTION

(LV762xx)

(LC75024/LA72702)

- 12 -

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

9. CPT DRIVE SECTION

8

D902

D902

- 13 -

BLOCK DIAGRAM

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LA7621 3

LA76213

DVD

(FLAT OPT.)

DVD

(FLAT OPT.)

CPT DRIVECPT DRIVE

FBT

185V

AFC

ABL

HEATER

B+

HDT

Collector

AV1(V/ R/ L)-IN

USOC

H/ P AV-IN

AUDIO B+

B+

(110/ 115V)

(17V/11V)

SMPS

TRANS

SPK.

Front-AV(2)

SCLSDA

EXT

Vid eo-i n

RGB

OUT

TUNER

V_DY

VERTI CAL AMP

STV9 32 6

Rear_AV( 1 )

( PHONE)

Rear_AV( 1 )

( PHONE)

IC02

EEPROM

24C04/16

V-O UT

H-OUT

SPK.

10.5V

Y(G) /C r( R) / Cb( B)

SDA

SCL

LC75024E

A2/ NICAM

MONO

SOUND AMP

LA42101

MONO

SOUND AMP

LA42101

AC

INPUT

(100~240V)

STEREO,

Sou nd Max

SOUND AMP.

LA42102(N)

STEREO,

Sou nd Max

SOUND AMP.

LA42102(N)

R61 0

5V

Option Part

IIC Bus Line

(Mono)

ML-OUT

31

22

17

5 46~48

STEREO

( ~ A43L)

MONO

( ~ A43K )

12

9

3

9

8

10

2

6

24V

1

ST-BY

TRANS

(1W Opt)

57 56 64

9V

From

IC804

IC804

9V REG

IC04

ST-5V REG

9v

From

IC804

IC661

5V

5.1V

IC751LA72730

(STEREO Opt)

IC751 LA72730

(STEREO Opt)

JA01

HIC291

Game Pack(Game Opt)

HIC291

Game Pack(Game Opt)

4,5,6 8 7

From USOC

Video(Game)

Audio( Gam e)

JA02

54

SIF

out

IF

3,611 1 4 7

AV2(V/ R/ L)-I N

2 5 9

LA72702

BTSC

IC701

LIN-TV

RIN-TV

21

1920

R/ L Ou t

L-OUT

R-OUT

SAW

SAW

5

9 10

IF IN

Z102

10 11 13

14

15

12

SIF IN

3261

V-O UT (M ono )

18

17 18

2 7

50

Ext R/ L

IN

49

RGB

9V

SCLSDA

27 26

33V

ST-5V

9v

From

IC804

9v

From

IC804

ST-5v

From

IC04

9v

From

IC804

9v

From

IC804

ST-5v

From

IC04

19

9 24199 24

H-Vc c

5V

VDD

3.3V

Vc c

5V

H-Vc c

5V

VDD

3.3V

Vc c

5V

9v

From

IC804

14

SOUND

5V

SOUND

5V

R62 0

7.5V

R62 0

7.5V

IC803

5V

IC803

5V

Q402

MD1803

IC401

TDA8145

IC301

V-in

FBP in

EW OUT

L401

Vc c

16

EW-OUT

EW IN

5v

From

IC803

62

IF

5V

SDA

SCL

23

24

SCLSDA

51

SPK L/ R

OUT

SCART

SCART

R, G, B

8 33

FB

AV ID

21

TV IN(ST)

M_R/L OUT(ST)

Mon ito r V OUT(ST)

- 14 -

LGE Internal Use OnlyCopyright © LG Electronics. Inc. All right reserved.

Only for training and service purposes

EXPLODED VIEW

170

300

112

120

530

531

532

520

101

104

600

400

150

174

320

330

331

370

360

380

390

590

591

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

PUMP-UP

V-IN

VCC

PUMP

GND

V-OUT

STAGE

V-REF

O/

-UP

CEM

INOUT

GNDS

V-DY

H-DY

WARINNG BEFORESERVICING THIS CHASSIS, READ 'X-RA Y

RADIATION PRECAUTION,' `SAFETY PRECAUTION' AND PRODUCT

SAFETY NOTICE IN THIS MANUAL

CAUTION : THE MARKS IN THE SCHEMATIC DIAGRAM AND THE PARTS LIST DESIGNATE

COMPONENTS WHICH HAVE SPECIAL CHARACTERISTICS FOR SAFETY, AND SHOULD

BE REPLACED ONLY WHICH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT OR

SPECIFIED IN THE PARTS LIST. BEFORE REPLACING ANY OF THESE COMPONENTS,READ

CAREFULLY THE PRODUCT SAFETY NOTICE IN THIS MANUAL.

DO NOT DEGRADE THE SAFETY OF THE RECEIVER THROUGH IMPROPER SERVICING.

A0

A1

A2

GND SDA

SCL

TEST

VCC

KS

SAW

I.RE F

GND

OUT

Vcc

EW

SIZE

Y

Cb

Cr

STEREO

PLL

PILOT
PLL

PILOT

PILOT

LEVEL DET

CANCELLER

REGUL
ATOR

MODE
OUT

MATRIX

-6dB

L-R

DEMOD

SAP

DEMOD

SAP BPF

SIF DEMOD

LPF

SAP
DET

ST/SAP

SW

LPF

LPF dbx processor

Offset

Cancell

SYSTEM
CONTROL

I2C

DECODE

Control

ST
SAP

Spectral

RMS DE T

Address

MUTE

L-R/SAP

MUTE

L+R

R-OUT

R-IN

L-OUT

L-IN

B

D/S

GR

FB

V-OUT

V-IN

5

4

2

1

8

6

7

3

10

9

11

12

Ripple
Filter

+OUT2

-OUT2

+OUT1

-OUT1

Input AMP

Out AMP

Out AMP

Vcc Standby

IN1

PREGND

MUTE

IN2

Input AMP

Power

GND

TIMER

0

RESET

ADC

V DET

R

I/O

RESET

G

PORT 1

B

RAM

RST

FS

I

XTSEL

CPU

CPU CLOCK

CORE

VDD3

BASE

TIMER

ROM

OSD

DATA

VDD5

BUS

CLOCK

CVBS

CLOCK

VS

PET_IN

CONTROL

AFT

C_SYNC

HS

POWER_IN

PORT 0

I/ O

TEXT

TELE

PLL

BUS

HS
VS

ABL
ACL

DRIVE/CUT-OFF

OSDSWOSD

CONTRAST

OSD

CONTRAST

BRIGHT

HOR
C/D

1/25 6

HOR
VCO

AFC1

HOR
OUT

PHASE

SHIFTER

FBP

HOR
VCC

AFC2

VER
RAMP

VER
C/D

SEP

VER

SYNC

SEP

E/W

APC1VXO

VCOAPC2 DDS

FSC

(EHT)

1CHIP

VDD

IF

AGC

AGC

RF

SPLL BPF

DET

900K

AMP

VIF

DET

SOUND

DET

VIDEO

AMP

VIDEO

TRAP

VCO

AMP

FM

DET

FM LIM

AMP

BPF

MATRIX

RGB

CLAMP

COLOR

TINT

COLOR
CLAMP

DC ADJ

SW

SEOAM

DECODER

CLMP

PAL SW

DEMODCREST

BS
SGSHARP

DL

BPF

SW

V/Y

ADCYC SW

TRAP

CLMP

SW

VIDEO

DC
VOL

SW

SW

TONE

RGB SW

EXT

CONTRAST

EXT RGB

DRIVE

CUT-O F F

SW

IF

NC

30V

NC

5V

SDA

SCL

CS

NC

AGC

16bit DAC

(MONAURAL)

SRC

(STEREO)

16bit DA C

(A2/DQPSK)

DEMODULATOR

DECODER

NICAM

ADC

PGA(AGC)+10bit

IIC

PLL

OSCILATOR

AMP

98.304MHz

18.432MHz

8

14

13

9

12

11

10

1

2

5

7

REG

BUFF

MODE

SELECT

DET

ALC

ALC

6dB

BUFF

BUFF

BUFF

INOUT

GNDS

LG

DSGD. CHKD.

TITLEUNIT

DWG NO.

SCALE Date

mm

APPD.

SCL

SDA

EW

GAME/FM_DATA

GAME_CLK/FM_CLK

SPK_L

MUTE

EYE

MUTE

EW

POWER/FM_CE

IR

FRONT/SIDE-R

REAR-R

REAR-L

FRONT/SIDE-L

SPK_R

REAR-L

SIDE-R

SIDE-L

SIDE-V

FRONT-V

FRONT-L

REAR-L

VER-OUT

HOR-OUT

FBP

B-OUT

G-OUT

R-OUT

ABL

R-OUT

G-OUT

B-OUT

VIF_IN2

SDA

SCL

SDA

IR

SDA

SCL

TV-R

VIF_IN1

REAR-R

MNT_L-OUT

MNT_R-OUT

FB_IN

AV1-ID

DVD-Y/G_IN

DVD-Cb/B_IN

RESET

HOR-OUT

RF_AGC

MNT_L-OUT

EXT_R-IN

EXT_V-IN

TV-L

TV-R

GAME_ID//FM_CE

GAME_DATA/FM_DATA

EYE

DOWNLOAD

DOWNLOAD_CLK

DOWNLOAD_DATA

GAME_CLK/FM_CLK

DVD-Cr/R_IN

REAR-V

MNT_V-OUT

HS

FBP

HS

VS

FRONT/SIDE-V

DVD-Cb/B_IN

FB_IN

DVD-Cr/R_IN

DVD-Y/G_IN

FB_OUT

DVD-Cr/R

DVD-Y / G

DVD-Cb/B

FRONT/SIDE_L

EHT

NICAM_RESET

VIF_IN2

FRONT-R

REAR-V

RESET

NICAM_RESET

FM_ON_OFF

DEGAUSS

ABNORMAL

SCL

SDA

AV1_ID/DOWNLOAD_DATA

DEGAUSS/FM_ON_OFF/USB_SW/DOWNLOAD

KEY

SPK-L

SPK-R

VIF_IN1

RF_AGC

FRONT/SIDE-V

SCL

SDA

EXT_V-IN

SDA

SCL

MNT_L-OUT

REAR-V

FRONT/SIDE-V

REAR-V

POWER/FM_CE

EHT

POWER/FM _CE

VER-OUT

VS

ABNORMAL

POWER/FM_CE

DVD-Y/G

DVD-Cr/R

DVD-Cb/B

SIF_OUT

PAL/NTSC

SIF_OUT

MNT_R-OUT

MNT_V-OUT

FB_OUT

TV-L

EXT_L-IN

EXT_R-IN

KEY

EXT_L-IN

ABL

IR

SCL

GID/SW/DL

POWER

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TV-L

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C210

560

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3.9K

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10V

C28

1N4148

D405*

2.7K

R307

P6

330uF
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C108

18K

R108

0.01uF

C534

1N4148

D902

4.7K

R803

1N4148

D403

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D603

3.3K

R501

1.5/0.5W

R310

100

R562

470p

C229*

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1.0/0.5W
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2

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4

5

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4

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6

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X501

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L216

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R801

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4

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1000P/1KV

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CK

C605
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R301

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2

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4

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C312

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D805

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C767*

T/W

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P902

1

2

3

4

5

6

7

8

9

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16V

C308

75

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RS

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100

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15K

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C201

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C414

10K

R410

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P910

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Q301

103

C538*

(PP)

223/200V

C514

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R705

4.7K

R58

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C212

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(RS)

R110

P101

123

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R706

VD801

TVR621D

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1K

R154

18K

R617

3900uF
MYL

C301

300

R513

36K(RN)

R518

100
510

R523

100uF
10V

C409

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150

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P801

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2

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10V

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P902-1

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2

3

4

5

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1

2

3

330

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ZD504*

240K

R420

22K(RN)

R512

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C612

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9.1V

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0.01u

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100

R921

10K

R607

1K

R615

36K

R552

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16V

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C30

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C759

100

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4.7K

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C234

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R902

1.8K

R908

0.05/0.5W
(RP)

FR301

100

R761

1.0/0.5W
(RF)

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C130*

10UH

L502

C102M

Q813

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C803

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C535

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D824

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MYL

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35V

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DB801
TS4B05G(ULTRA/SSlim)

DB802

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12K(RN)

R519

1N4003

D901*

75

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50V

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3

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103

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1N4148

D303

82K

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100K

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10V

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16V

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L223

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TH801

TH802
163-054D(2P)

1.2/2W
(RF)

FR403

4.7K

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75

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50V

C702

1000P

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43K

R308

T/W

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Q902

390

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D601

CPT

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R42

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1

2

3

4

5

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D111

33V

ZD103

12K(RN)

R305

EBJ34806701

T402

1

2

3

4

6

5

7

8

9

10

P902-2

1

2

3

4

10K/0.5W
(RS)

R550

2.0K/0.5 W

R403

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C237

470p

C226*

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275V

C802

T/W

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100

R41

47K/2W
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R805

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C908

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50V

C704

2.2u F
50V

C16

2.2

R604

T/W

L213

2200P/4KV

C843

0.1uF
MYL

C314

0.22u F
MYL

C310

100K

R621*

100uF
10V

C40

10K/0.5 W

R407

180V

47K

R826

(CK)

470P/1KV

C812

680

R1

120

R555

390

R915

4.7K

R825

100P

C131*

1uF
50V

C313

18K/2W
(RS)

R923

3.9K

R509

2.2K

R113

5.6/2W
(RS)

R620

4.7K

R21

2200uF
25V

C311

270P

C907

22K(RN)

R313

220uF
160V

C814

220

R514

100uF
16V

C766

TVR06J

D505

220uF
10V

C246

0.33uF
50V

C15

C3228

Q401

56K/0.5 W

R547

CK

470P/500V

C404

75

R226

9.1V

ZD412*

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C322

0.01uF

C20

1000P

C804

1kV

82K

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2.2K

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Q903

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16V

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1N4148

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560

R19

39

R515

0.01uF

C507

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50V

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4.7uF
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C243

3.9K

R508

4.7K

R111

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D301

125-022 R

L804

LED

LD11

21

100uF
160V

C835

0.047uF
MYL

C306

470P

C235

39K

R502

220P

C541

1uF
50V

C504

300

R421

4.7K

R832

1.5K/0.5 W

R918

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10V

C526

J637

*

C523
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1

2

3

45

6

7

8

0.01uF

C101

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R873

100

R563

10u

L231

10uF
50V

C103

30K

R532

330uF
25V

C602

18K/2W
(RS)

R917

100

R507

T/W

R556

10uF
100V

C408

750

R16

220K

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100P

C19

C50
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R535

KIA7805API

IC803

1

2

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J116

T/W

4.43MHz TRAP

Z601

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C116

PA01

123

151-C02B

H-DRIVE

T403

123

4

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JA02

0.01uF
MYL

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1N4148

D411

620

R462

330

R463

1K

R461

3.9K

R460

100K

R459

6mH

L401

26.5u H

L402

334/400 V

C412

273/630 V

C406

RS4FS

D406

RU4AM

D407

20K

R455

6.8K

R309

IC401

TDA8145

1

2

3

45

6

7

8

1K/1W(RS)

R416

120K

R456

5.1K

R414

2.7K/2W
(RS)

R406

2.7K/2W(RS )

R316

C551*

0.068uF
MYL

C305*

22uF
50V

C509

3.0K/2 W
(RS)

R402*

J106

C5343

Q16

J117
T/W

0.02/0.5W
(RP)

FR816

15K

R451

1K

R450

5.6K

R517

39K

R457

0.047u F
MYL

C434

473/630 V

C401

450uH

L404

334/400V

C402

1.6mH

L403

1K

R845

J811
T/W

4.7K(RN)

R844

1K

R841

9.1V

ZD851

39K

R843

0.022uF
MYL

C818

47

R840

Q801
C5343

3.9K

R835

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10V

C828

91K(RN)

R815

91K(RN)

R816

30K(RN)

R842

KA431

Q840

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250V

C847

T/W

R884

0.022u F

C502

330

R537

C512*

1K

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2.2u F
50V

C13

JA01

(DVD)

0.1uF

C613

2.2

R601

2K

R611

2.2

R603

4.7uF
50V

C603

ST

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C608

2.2uF
50V

2.2

R602

100

R609

2K

R605

C611
47uF
25V

0.1uF

C614

0.018uF
MYL

C609

0.1uF

C606

0.018uF
MYL

C604

4.7uF
50V

C610

100

J517

9V

9V

9V

9V

9V

9V

S-Vcc

S-Vcc

5V_1

5V_1

5V_1

5V_1

5V_2

30V

30V

J13
T/W

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ST-5V

ST-5V

ST-5V

ST-5V

100K

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620

R528

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C648

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C676

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C666

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C638

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C670

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C657

47uF
10V

C691

10uF
50V

C675

10uF
50V

C672

4.7uF
50V

C656

4.7uF
50V

C654

22uF
50V

C682

4.7uF
50V

C642

0.1uF

C645

0.1uF

C678

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R666

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R665

4.7K

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100K

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240K

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R543

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C521

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4700p

C687

4.7uF
50V

C675

4700p

C688

1k

R632

Z602

4.5MHz

1

3

2

J721*
T/W

P211A

1

2

3

4

IC810
W6553A(MONO)
W6554A(STEREO)

1

2

3

4

5

6

7

220
1/2W

R838

6.8K

R807

30

R810

J842
T/W

D845
UF4005

22uF
50V

C840

0.1u F
50V

C841

0.01uF
MYL

C852

1000pF

1.6KV

C817

221/2KV

C859*

?

C807*

?

C808*

125-022K

FB810

125-022K

FB844

J843

T/W

75K

R839

39K(RN)

R806

3300pF
MYL

C842

15V

ZD846

5.6K

R808

IC501

LV762xx

EXT-R_IN1EXT-L_IN

2

INT-V_IN

3

VCC[5V]4Video/Chroma/Vertical

EXT-V_IN5NC/MONI-R

6

YC-Y7YC-C[FB_IN]

8

1CHIP_VDD[3.3V]

9

DVD-Y[G_IN]

10

CR_IN[R_IN]

11

4.43MHz
12

CB_IN[B_IN]

13

APC-FILTER14Chroma

FSC[EHT]

15EW16

VEROUT

17

V-RAMP

18

VCO_IREF

19

HOR_VCC[5V]

20

AFC-FILTER21Horizontal

HOR_OUT

22

FBP23CPU_VDD[ST-5V]24FILT25CPU_VDD226P0027P0128P0229P1330P1431P15

32

FM_OUT[MONI-L]

64

FM-FILTER

63

IF_VCC[5V]

62

VIDEO_OUT/SVO

61

VIF_AGC

60

APC-FILTER

59

RF_AGC

58

VIF_IN157VIF_IN2

56

IF_GND55

SIF_OUT

54

APC-FILTER

53

SIF

SIF_IN

52

SPK-R_OUT51SPK-L_OUT

50

RGB_VCC[9.0V]

49

R_OUT

48

G_OUT47B_OUT

46

ABL

45

1CHIP_GND

44

CPU_GND43FILTSLC

42

RESET

41

P0740P0639P0538P0437P0336P1735P1634P11

33

4.7uF
50V

C280

??

C845*

TU101

6700MF0018A(CIS)
6700MF0018B(PAL)
6700NFNS11E(KOREA)
6700NFNS11F(NTSC FR TYPE)
6700NFNS11G(NTSC PHONE TYPE)
6700NFNS11H(NTSC DIN TYPE)

100uF
10V

C636

100uF
10V

C615

1.5V REG.

IC606

1

2

3

3.3V

1.5V

10K

R541

2200P/500 V
CK

C421

330/0.5W

R441

J403
T/W

0.1u F
50V

C677

5V_2

5V_1

5V_1

5V_1

T/W

R853

J413
T/W

0.022uF
50V

C574

0.01u F

?

1000p

C549*

330K

R538*

100

R511

1.2UH

L528

5.1M

R684

2.2M

R654

0.1uF

C664

C114*

0.1uF

J830
T/W

J402
T/W

J303
T/W

J306
T/W

J301
T/W

J401

T/W

60uH

L405*

?

L406*

J404*

T/W

J814
T/W

0.1uF
275V

C816

123A

FB817*

?

C839

J810
T/W

6322A00030A

TH803*

J906T/ W

J903
T/W

J905
T/W

1N4003

D903

J907

T/W

J620

T/W

?

C627*

J607
T/W

30P

C552*

IC651

LC75024E

AVDD331AOUTR

2

AVSS3LRVREF4AVDD335NC6AOUTL7AVDD338VRT9VCOM

10

VRB

11

SIF2

12

AVSS

13

AVDD33

14

AVDD33

15

AVSS

16

AVDD15

17

AVSS

18

XVSS

19

XIN

20

XOUT

21

AVDD3342MRVREF

41

AVSS

40NC39

AVDD3338TESTB137TESTB0

36

TEST

35NC34NC33NC32NC31

IOVSS

30

IOVDD33

29

RSTB

28

SDA27SCL

26SA25

DVDD15

24

DVSS

23

XVDD33

22

5V_1

J720
T/W

J705
T/W

J281
T/W

J704
T/W

T/W

J673

T/W

J703

T/W

J641

T/W

J652

T/W

J642

1K

R6331KR632

T/W

J651

T/W

J643T/W

J653

T/W

J672

J527

T/W

T/W

R40

T/W

J562

J519
T/W

T/W

J508

J112
T/W

T/W

J111

10UH

L663

J633*
T/W

10UH

L662

T/W

R654

T/W

J645

T/W

J641

T/W

J648

T/W

J642

T/W

J647

47uF
10V

C650

J22
T/W

J23

T/W

T/W

J525

J555
T/W

J541
T/W

T/W

J109

4.7uH

L503

T/W

J101

T/W

J558

T/W

J552

T/W

J201

T/W

J557

T/W

J507

0.01uF

C562*

0.01uF

C563*

0.01uF

C564*

0.01 8
MYL

C542*

0.1
(PP)

C545

?

R521*

T/W

J524

T/W

J560

9.1V

ZD407*

T/W

J513

T/W

J528

T/W

J532

T/W

J504

4.7K

R566

T/W

J706

T/W

J707

T/W

R701

T/W

J521

T/W

R704

T/W

J503

T/W

J506

T/W

J24

T/W

J522

T/W

J559

0.01uF

C29

T/W

J542

T/W

J702

T/W

J625

T/W

J624

T/W

J515

T/W

J512

T/W

J544

T/W

J546

J535
T/W

0.01u F

C528*

T/W

J537

T/W

J543

T/W

J520

T/W

J510

T/W

J567

J286
T/W

J564
T/W

J520
T/W

J563
T/W

T/W

C283

J285
T/W

T/W

J282

T/W

J292

T/W

J287

T/W

J288

T/W

J549

J637
T/W

T/W

J289

T/W

J290

J553
T/WT/ W

R536

T/W

J283

T/W

J284

J291
T/W

J286
T/W

100

J534

T/W

R567

T/W

J281

T/W

R711

J534
T/W

J638
T/W

J646
T/W

100uF
10V

C857*

3.3V REG.

IC603

1

2

3

J551
T/W

J804
T/W

J709
T/W

510

R247

A1266

Q241

T/W

J280

T/W

J687

T/W

J672

T/W

J550

T/W

R780

T/W

J565* T/W

J818

0.1uF

C283

10uH

L501

100

J511

T/W

J540

J556

T/W

J526
T/W

47K

R318

5V_1

J819
T/W

J634
T/W

J523
T/W

J664*
T/W

33/2W
(RS)

R610*

100uF
10V

C699*

J665
T/W

5.1V

ZD601*

0.33uF

C630

100pF

C639

T/W

J646

10UH

L665

T/W

J650

J647
T/W

3.3V

47uF
10V

C691*

47uF
10V

C692*

10UH

L664

125-022R

FB601

T/W

J110

J3
T/W

2.7K/2W
(RS)

R405

33pF/
10pF

C520

33pF

C503

33pF

C546

75K

R222

75K

R221

T/W

R223

J826
T/W

J626
T/W

J635

T/W

J601
T/W

J102*
T/W

0.01uF

C105

390

R105

0.01uF

C104

22

R104

1.2K

R103

100

R101

0.82

L102

0.01uF

C115

C3197

Q101

3.6K

R102

47uF
16V

C111

9V

J405
T/W

TVR06J

D304

470uF
10V

C525

C102M

Q502

C102M

Q111

CP12

0.01uF
16V

CP13

0.01uF
16V

LP05
10uH

LP03
10uH

CP07

0.01u F
50V

RP10
1K
1/10 W
5%

CP20
47uF
10V

RP09
1K

1/10W
5%

ICP03
S1117-18PIC

1

GND

2

OUTPUT3INPUT

P551B

35238-1010

123456789

10

CP30
47uF
10V

LP04
10uH

CP04
47pF
50V

CP34

0.1u F
50V

RP14101/10W

5%

RP13101/10W

5%

CP19

0.01uF
50V

CP25
47uF
10V

RP28
10

1/10W
5%

QP02
2SC3875S

E

B

C

ICP04

KA75270Z

2

G

3O1

I

QP01
2SC3875S

E

B

C

CP33

0.1uF
50V

CP08
47uF
10V

CP31

0.01uF
50V

CP18
47pF
50V

LP06
10uH

CP35

0.1u F
50V

RP11

100

1/10W

5%

CP10
330uF
10V

CP05
47pF
50V

35238-1010

P552B

123456789

10

CP29

0.01uF
50V

CP27

0.01uF
50V

RP30
1K

1/10W
5%

CP01
22pF
50V

RP03
100

5%

1/6W

CP23

0.01uF
50V

RP31
22K

1/10W
5%

CP28
47uF
10V

ICP02

S1117-33PIC

1

GND

2

OUTPUT3INPUT

RP01
220

1/6W
5%

CP11

0.01uF
16V

RP17
10

1/10W
5%

RP12101/10W

5%

CP06
47pF
50V

XP01

20.25MHz

RP15
10K

1/10W
5%

ICP01

PVP9390A-QG-A1

1

XOUT

2

XIN

3

VSS18_14VDD18_1

5

GPO0

6

SEL

7

OUT38OUT29OUT1

10

VSS33DAC11VDD33DAC

12

FSW

13

IN3

14

IN2

15

IN1

16

VDD18ADC

17

VSS18ADC

18

CVBS1

19

TEST

20

CVBS2

21

TM

22

CVBS3

23

CVBS424VSS33ADC25VDD33ADC26YIN27UIN28VIN29RESET30VDD18_231VSS18_232POR33GPO2

34

I2C1

35

I2C2

36

SDA

37

SCL

38

INTR

39

VDD33PAD

40

VSS33PAD

41

VSP

42

HSP

43

GPO1

44

CLKOUT

CP32
47uF
10V

CP16
47pF
50V

RP08
100

1/10W
5%

CP02
22pF
50V

LP02
10uH

CP17
47pF
50V

CP21
47uF
10V

RP02
220

1/6W
5%

RP05
1K

1/10W
5% CP03

47pF
50V

RP04
100

1/6W
5%

LP01
10uH

RP06

100

1/6W

5%

CP36

0.1uF
50V

RP34
1K
1/10W
5%

RP33
1K

1/10W
5%

RP07
22K
1/10W
5%

0.1
MYL

C515*

100p

C245*

0.1uF

C529

R904

R913

C2330-Y

Q904

R706
T/W

R711
T/W

R317*

J864
T/W

J841

T/W

J825

T/W

J822
T/W

J820
T/W

J812

T/W

T803

61709MC016D

J813

T/W

J801

T/W

J802

T/W

J803

T/W

J808

T/W

J806

T/W

J807

T/W

J809

T/W

T/W

J712

J708

T/W

T/W

J690

T/W

J698

T/W
J667

J656
T/W

J602

T/W

J621

T/W

J622

T/W

J623

ST

J605

T/W

J108

T/W

J606

J604

T/W

T/W

J609

100

J516

T/W

J518

J409
T/W

J220

T/W

J221

T/W

J223
T/W

J151

J6

LA72730

IC751

LIN-11LIN-22LIN-33RIN-14RIN-25RIN-36VIN-1

7

VCC

8

VIN-2

9

GND

10

VIN- 3

11

R_MONITOR

12

L_MONITOR16SCL13SDA14NC15ALC_FILT17VIDEO_OUT18AUDIO_R_OUT19AUDIO_L_OUT20VIN-TV21BIAS_FILTER22RIN-TV23LIN-T V

24

A1275Y

Q103

30K

R114

C102M

Q104

T/W

J203

J502

T/W

KIA78R05API

IC806

12

3

4

J829

T/W

J828

T/W

T/W

R811

2200uF
25V

C838

TVR06J

D806

125-022 R

FB808

470P/500 V

C836

CK

180/2W
(RS)

R314

T/W

J539

100pF

C532

1K

R606

T/W

J293

9V

TH402*
300ohm

TH401*

300ohm

SCREEN

5V

510(14")

FOCUS

*

180V

*

26V

GAME/FM DATA

V2

D

GAME ID/FM CE

L2

G

G

G

R2

Option

MONO:330/0.5W

NC

GND

W/O HP

SDA

11

SCL

12

CPT BOARD

MONO

<L-IN>

10

<R-IN>

<V-OUT>

Headphone

<L-OUT>

14

<B+ : 115V>

STEREO:510/0.5 W

13

<MONO 4PIN OPT.>

OCP

GND

180V

HEATER

MONO OPTION

9V

B

EBY41778501

G

* : OPTION

R

2.2/0.5W(LG CPT)

H-GND

<SCHEMATIC DIAGRAM OF CW-81A>

'07.05.08

CIRCUIT DIAGRAM

CW-81A CHASSIS

IN

(CK)

FOCUS

180V

SCREEN

COLD

AFC

HOT

C

ABL

C3229(21" )

26V

D833*

<R-OUT>

HEATER

<V-IN>

COL

12V

C3229(21")

BK

OUT

GK

<EYE OPT.>

HEATER

RK

GND

B

H-GND

DEG OPTION

RU2AMV

HEATER

C3229(21" )

HOT

V-NECK

9V

270P(14" )

B

VIDEO/NC

390P(14")

G

GND

390P(14")

R

AUDIO/FM ON_OFF

510(14")

ANODE(HV)

GAME/FM CLK/IR

510(14")

KEY

A

VERSION 1.11 2008.02.26

POWER

HEADPHONE R V

(MONO)

L

PAL

NTSC

HV

INNER

112V

??

3.00V

CH-/PR-

VOLTAGE

0.81 V

0V

2.48 V

<KEY MATRIX>

CH+/PR+

1.88VMENU/OK

VOL+/VOL+

T-SOUND

NT/PAL

T-PICTURE

TV_VIDEO/MENU 1.34V

??

VOL-/VOL-

<DVD_R-IN>

<DVD_L-IN>

LA42101 (10W MONO MAX)

LA42102N(15W+15W MAX)

<PAL>

ABNNORMAL

<NICAM/A2 OPT.>

<DOWNLOAD OPT.>

BTSC

<AV STEREO OPT.>

<NTSC>

W/TEXT W/O TEXT

NTSC

PAL

NICAM/A2

<SIDE A/V OPT>.

<MONO>
<STEREO>

<MONO OPT.>

<MONO OPT.>

<MONO 4P,W/SCART OPT.>

<W/O SCART,PIP>

<W/SCART,PIP>

<GAME, FM TX OPT.>

<STEREO,W/O SCART OPT.>

<W/O PIP>

FB-IN

Cb-IN

Y-IN

Cr-IN

GND

5V

R-OUT

G-OUT

B-OUT

FB-OUT

SDA

SCL

VS

HS

GND

GND

GND

TV_VIDEO

AV1

AV2

<PIP OPT.>

<W/PIP OPT.>

<W/PIP OPT.>

<IC VERSION>

BPF

Slave Address=0x38

<W/O BPF OPT.>

<W/FM TX OPT.>

MNT_R

MNT_L

GND

GND

D

NC

S/GND

VIN

SS/ADJ

FB

BD

MONO :IC810(W6553A), R806(RN ???)
STEREO:IC810(W6554A), R806(RN 39K)

MODE INPUT

VIN1 REAR

VIN2 FRONT/SIDE
VIN3 GAME
VIN-T V RF

MONO

LV76210
LV76220

LV76230

PAL/NT

SOUNDIC

SYSTEM

PAL/NT/SECAM

COMB

EW

TXT

Surround

A2+NICAMBTSC

LV76211

LV76221

LV76231

LV76233

LV76212

LV76222

LV76213

LV76232

LV76223

LC75024

LA72702N

AV-ST

RF-ST
IC

*ASSEMBLE SUSOC(AV/ST)IC WITH RF/ST IC FOR RF-ST MODEL

PAL/NT/SECAM

PAL/NT/SECAM

PAL/NT

PAL/NT/SECAM

PAL/NT/SECAM

PAL/NT

PAL/NT/SECAM

PAL/NT

PAL/NT/SECAM

PAL/NT/SECAM

A2/NICAM

BTSC

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

LA42102L(10W+10W MAX)

<STEREO OPT.>

<SS/ULTRA OPT.>

<FLAT,Normal OPT. >

<SS/ULTRA OPT.>

<FLAT,Normal OPT.><SS OPT. ><ULTRA OPT.>

B+

<MONO/AV ST OPT.>

GND

GND

IR

KEY

POWER

ST-5V

GND

EYE

GND

9V

NC

<MONO/AV ST OPT.>

<W/O RELAY>

<W/O NICAM>

<NICAM>

W/O ST-BY 1W

W/ NICAM

W/O ST-BY 1W

B+

S-Vcc

10.5 V

???V

GND

S-GND

GND

COLD

GND

<RF ST>

<MONO/
AV ST OPT.>

<MONO/AV ST>

<PRE AMP OPT.>

<MUTE OPT.>

Slave Address=0x80

VCD Slave Address=0xBA

EEPROM Slave Address=0xA0

TUNER Slave Address=0xC0

Slave Address=0x92

AV1

GND

AV2

GND

GNDRFSCL

SDLVSHS

FB0RI5VROBO

GOBIGND

FBI

GI

CPT BOARD

PIP BOARD

NARROW RANGE OPT.

<W/O ST-BY 1W OPT>

<W/ST-BY 1W OPT>

W/ST-BY 1W

=>Initial model: 21"ULTRA S/S(21FU1R) .

May, 2008

Printed in KoreaP/NO : MFL41322905