Lg 29fu6rsd/rs User manual

COLOR TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : CW62D

MODEL : 29FU6RSD/RS

MODEL : 29FU6RSD/RS-T5

North/ Latin America http://aic.lgservice.com

Europe/Africa http://eic.lgservice.com

Asia/Oceania http://biz.lgservice.com

Sep, 2008

Printed in ChinaP/NO : MFL42090903

Internal Use Only

- 2 -

CONTENTS

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

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

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

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

Trouble Shooting.................................................................................................13

Printed circuit board.........................................................................................17

Block Diagram ......................................................................................................19

Exploded View....................................................................................................20

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

Only for training and service purposes. LGE Internal Use Only

- 3 -

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.

1.5 Kohm/10W

To Instrument’s

exposed

METALLIC PARTS

Good Earth Ground

such as WATER PIPE,

CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

Only for training and service purposes. LGE Internal Use Only

- 4 -

SPECIFICATIONS

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

VScope

This specification is for CW62D CHASSIS Color TV.

VTest and Inspection Method

1) Capability: It follows the TV QC Standard of LGE.

2) Standards of Etc. requirement

- Safety: IEC60065

-EMC : CE standard(EN55020,EN55013)

VTest Condition

Conduct the test as mentioned below.

2.1 Temperature : 25 ±5°C ( CST 40±5°C)

2.2 Relative Humidity : 65 ±10%

2.3 Power Voltage :

2.4 Follow each drawing or spec for spec and performance of

parts, based upon P/N of B.O.M.

2.5 Warm up TV set for more than 20min. before the

measurement (If no problem in capability,this allow omitted)

Item

Receiving System

Receiving Channel

Input Voltage

Market

Picture inch

Tuning System

Operating Environment

Storage Environment

Remark

Korea,Japan,Taiwan,North

America,Middle South American

EU /Non EU MODEL

OPTION

Korea,Taiwan,North America.

Middle south American

Japan

1)EU/Non EU Model

2)NTSC-M

(Multi-model NTSC-M)

Korea

Middle south America

North America

Japan

Taiwan

NON-EU

NTSC MODEL

PAL MODEL

200 PR(W/O TXT )

Specification

1) NTSC M

2) NTSC M/ PAL M/N

1) PAL,SECAM BG

2) PAL/SECAM DK

3) PAL-I/I

4) NTSC M

5) NTSC 4.43(AV)

6) SECAM L/L

7) NTSC M/PAL M/N

1) VHF : 02~13

UHF : 14~69

CATV : 02~125

2) VHF/UHF : 1~62CH

CATV : C13~C38CH

TOTAL 88CH

3) VHF : E2 ~ E12

UHF : E21 ~ E69

CATV : S1 ~ S20

HYPER : S21 ~ S41

4) VHF : 02 ~ 13

UHF : 14 ~69

CATV : 02 ~ 71

AC 220V, 60Hz

AC 100 ~ 240V, 50/60Hz

AC 120V, 60Hz

AC 100V, 50/60Hz

AC 110V, 60Hz

AC 110 ~ 240 V/50Hz, 60Hz

AC 230 V 50/60 Hz

Korea, Japan, Taiwan, North

America. Middle South

American ,Filipine, China,

Middle Asia, Asia, EU, CIS

FLAT 29”

FVS 100 program

1)Temp : 0 ~ 45 deg

2)Humidity : under 85 %

1)Temp : -20 ~ 60 deg

2)Humidity : under 85 %

VGeneral Specification

Market Place

Miesast/Africa

EU/CIS

Band

Standard input Voltage

110 ~240 Vac, 50/60Hz

230Vac 50Hz

Remark

Initial

Only for training and service purposes. LGE Internal Use Only

1. Application Object

This specification can be applied to all the television related to

CW62D 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 pre-

permitted range.

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

following conditions.

1) Temperature: 25±5°C

2) Humidity : 65±10%

(4)Adjust receiver's AC power follow the rated voltage.

(5) If not specified, the receiver must be operated for more

than 15 minutes prior to the adjustment.But adust on the

board, can adjust under the JIG state instantly.

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

LG standard signal means the digital pattern PAL_EU 05CH

3. Adjust Item

3.1.1. Preparation for Adjustment.

Input Cross-Hatch Pattern [fig.1],Set video mode

“DYNAMIC(CLEAR)”

3.1.2. Adjustment.1

Adjust FOCUS VOLUME(the top volume of FBT) ¨and

make the FOCUS of vertical line on the quarter of

screen(red area in fig.1) achieve the best state.

3.2. Purity and Convergence adjustment

Following direction is a case using of None-ITC CPT for CPT

manufacture factory.

This adjustment should be done as below direction.

3.2.1. Purity adjustment

a. Do degauss CPT and Cabinet

b. Receive Red Raster signal.

c. Unfasten fixing Screw of DY, close DY to CPT Funnel DY

as possible as you can.

d. Make R-Land be centered as cross Purity Magnet

That time,4th 6th magnet should keep free gauss status.

e. Make uniform RED Raster as moving DY,

Check there is purity problem or not on R/G/B, white

Raster.Then, Fix screw of DY.

(At this time, be careful about inclination and DY should be

fixed keeping horizontality)

f. Check the TV in direction of EAST, WEST, SOUTH,

NORTH,. Adjust with supporting MAGNET when

adjustment is not operated ..

3.2.2. Adjustment for Convergence

This adjustment should be operated at the best condition of

FOCUS after finishing the PURITY adjustment.

1) BACK RASTER receives black CROSS HATCH signal.

2) Adjust Brightness so that there are 9-12 dots.

3) Widen two tabs of 4pole Magnet with equal angles and

accord red, blue vertical lines at the center of screen.

4) With keeping angle of "c. clause", rotate tab and accord

red/blue, green vertical lines at the center of screen.

- 5 -

ADJUSTMENT INSTRUCTIONS

<Fig 1. Cross-Hatch Pattern(PAL:E-7 CH)

Integrate DY and

Magnet into CPT

CPT Assembly

As preparatory operations before

assembling CPT, wind cotton Tape for

protecting to CPT NECK and DY, CPT

connection parts. At this moment, end

of tape should be over-lapped and

wound in direct route to the NECK.

It needs minimum 15 minutes for

heat run under "standard" picture

condition.

DY FIXED Torque 9~11 kg f.cm

Fix the Magnet to the position as

shown picture below. Be careful not to

make CPT neck shadow while

adjusting DY.

HEAT RUN

Degaussing

STC Pre-Adjustment

Purity adjustment

DY Fixing

SCREEN Voltage adj.

W/B Fix

FOCUS adjustment

STC adujustment

DYC adujustment

Convergence Magnet

15 ~ 20mm

6Pole 42

Fig.2 Adjustment Sequence

Only for training and service purposes. LGE Internal Use Only

5) Widen two tabs of 6pole Magnet with equal angles and

accord red, blue vertical lines at the center of screen.

6) With keeping angle of "e. clause", repeat the adjustment

from c to e keeping in mind the movement of red, blue,

green when the horizontal lines are twisted.

7) Move DY up, down, left, right and make the convergence to

be optimal condition and stick rubber

wedge to CPT so that the DY not to move.

8) Ordinate R,G,B adjust,process must follow the R,G,B

sequence.

When adjust not follow the R,G,B sequence,picture

circumjacent Miss-Convergence will NG.

3.3 SCREEN & WHITE BALANCE Adjusting

3.3.1. Manual Adjustment Method (use remoncon

for adjusting)

1) On RF Mode,input PAL or SECAM(NTSC)signal,and

receive (it is independent of CH)

2) Under LINE SVE MODE (IN-START KEY),Press ADJ KEY

can switch to SCREEN adjust MODE.

3) Adjust FBT's SCREEN VOL, Make the TV picture appear a

horizon line ,turning FBT SCREEN VOL make the horizon

line just disappear is the best position.(When exit SVC

MODE press "TV/AV" KEY).

3.3.2. WHITE BALANCE Manual Adjustment.( INSTART ->

SERVICE1)

When auto adjust in [LINE SVC MODE (IN-START

KEY)press MUTE KEY will switch to CPU OFF MODE,the

top of picture will display “CPU OFF” state connect to

adjust JIG.

1) TV set receive 100% White Pattern signal

2) In the state of default setting,adjust BLO-R(R CUT), BLO-G(G CUT)

3) In default setting Data BG(B-DRIVE) is 32,adjust RG(R-

DRIVE), GG(G-DRIVE)

Make X,Y coordinate satisfy color coordinate below,adjust

HIGH LIGHT(35FL).

Adjust repeatedly until HIGH LIGHT, LOW LIGHT match.

W/B setting default data refers to W/B TABLE based on

different MODEL.

CW62D WHITE BALANCE IIC PARAMETER

1. IC

2. White balance IIC Parameter (Address)

3.Color coordinate

3.4 Deflection Setting Data Adjustment

When adjust manual as follow

3.4.1. Adjustment Preparation

(1) TV set receive Digital pattern (PAL: E5ch.)

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

remote control.

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

continuously to enter Deflection Adjustment mode.

(4) Press the CHD,EKey to select adjustment item.

(5) Press the F,GKey to change the data.

3.4.2. Adjustment

1.Deflection Setting Data Adjustment,adjust in N50Hz (PAL) mode

firstly, USB apply model,PAL Muti : N60Hz(Digital Pattern)

need setting Deflection data

Then separately adjust N60Hz(NTSC), Z60Hz, N50Hz, W50Hz,

Z50Hz.(Model with ARC function)

(In N60Hz adjustment, data more than N60Hz can auto transfer

accordingly to N60Hz compensate value, please pay attention

to it.)

2. Korea Model adjust only in N60Hz.

3. Middle/south America Model first adjust in N60HZ,then in

N50(PAL-N ).

- 6 -

Only for training and service purposes. LGE Internal Use Only

Item

Color

Temperature

288

295

9000

degree

268

273

1300

degree

267

276

1300

degree

282

288

10000

degree

266

282

13000

degree

EU N-EU KOREA

/Taiwan Middle/South

America Philippines

<Table 1> WHITE BALANCE Color Coordinate

Item

BLO-R(R CUT)

BLO-G(G CUT)

RG(R DRIVE)

GG(G DRIVE)

BG (B DRIVE)

LOW

LIGHT

HIGH

LIGHT

0 ~ 63

PAL

fixed

Range default setting data remarks

<Table 2> WHITE BALANCE default setting data

<Table 3>W/B auto adjust machine setting Table

VCD IC

EP_ROM

Name Maker NOTE

0 0 0 0

Algorithm

Program

Sub Add

Start Bit

Stop Bit

Offset

Polarity

EP_Rom_S

B(R)_Amp

Win31_wb TWB

B(R)_Cut

Win31_wb TWB

G_Amp

Win31_wb TWB

Program

Vcd Slave

Win31_wb

TWB

Eeprom_Slave

Win31_wb TWB

Speed

Delay

G_Cut

Win31_wb TWB

Mode

High

Light

Low

Light

4. After finishing deflection setting data adjustment, press ENTER

KEY,then save it and escape adjustment Mode.

Deflection Setting ITEM

1. V SLOPE

CPT center line aim at black background !

2. V SHIFT (VS)

Keep accord with vertical center line of received picture and

CPT

3. V LINEAR (VL)

Adjust the top & bottom size of inner circle to be equal on PAL

E05 CH.

4. V AMPLIT (V AMPITUDE)

PAL signal: Adjust upper and lower part of circle from the effective

screen of the CPT to be distance of 6~7mm .

5. H SHIFT (HS)

Adjust the vertical center line of a digital circle pattern is in accord

with geometric vertical center of the CPT.

6. EW WIDTH (EW)

Adjust outer line of the left/right outer lattice to be united with

effective boundary surface of CPT.

Adjust(1) of [Fig 4] 0~25% scope on external lattice from PAL

adjustment.

7. EW PARAB (EW PARABOLA)

Adjust so that middle portion of the outer most left and

right vertical line looks like parallel with vertical lines of the

CPT.

8. EW TRAPE (EW TRAPEZOID)

Keep accord with the top and the undersurface horizontal scope.

(When picture distorts,adjust until it is the square.)

9. EW UPCOR & EW LOCORR

Adjust so that corner vertical line of upper-left ,upper-right, lower-

left and lower-right to be optimization.

10. H BOW

Adjust until distortion scope of the edge part in the top and the

undersurface of the picture are the same.

11. H PARALL (ANGLE)

In angle adjustment, adjust until inclination of center vertical line

should be vertical precisely.

12. SCORRECT (S CORRECTION)

Adjust so that the lattice scopes of top, center, bottom of received

pattern are the same.

Use the default setting data (Initial data) of CPT owing to using DY

data of CPT.

13. V SCROLL

Keep accord with the geometry vertical center line of received

picture and the vertical center of CPT.

14. V ZOOM

VERTICAL ZOOM

15. WBR

16. WBF

3.5 Deflection setting default (SERVICE 2)

- P A L(SERVICE 2)

[Table 4] Deflection setting default based on different model

(SERVICE 2)

- 7 -

[Fig.5] Cross-Hatch Pattern (PAL:E-7 CH)

CRNU

CRNL

CRNU6

CRNL6

Adjusting Point

Actual picture size

[fig.4] PAL Digital Pattern (EU05CH)

Only for training and service purposes. LGE Internal Use Only

-8 -

Only for training and service purposes. LGE Internal Use Only

First adjust in PAL 50HZ, and then adjust in NTSC 60HZ, but it needs confirm

adjustment state again in NTSC System. Adjust if necessary.

3.6 SVC DEFAULT DATA (DATA below is supervised by EEPROM MASTER.)

3.6.1 PAL SERVICE (EEPROM)

[Table 6] SERVICE 1 [Table 7] SERVICE 3

Remarks

Adjust

Item

AGC

BLO-R

BLO-G

CDL

L-DLY

RGB-BRI

AGC take over

Red Gain

Green Gain

Blue Gain

Black level offset Red

Black level offset Green

Cathode Drive Level

Luminance delay time

OSD/TEXT BRIGHTNESS

Adjust

explanation LPDK

TS-AK LPDSG

TS-AK

50Hz 60Hz 50Hz 60Hz

LPDSG TS-AK

LPDK TS-AK

Adjust Item

V SLOPE

V SHIFT

V LINEAR

V AMPLIT

H-SHIFT

EW WIDTH

EW PARAB

EW TRAPE

EW UPCOR

EW LOCOR

H BOW

H PARALL

SCORRECT

V SCROLL

V ZOOM

WBR

WBF

V SYNSLI

OVRVOLIN

V GUARD

Vertical slope

Vertical shift

Vertical linearity

Vertical amplitude

Horizontal shift

EW width

Parabola adj

Trapezoid adj

Lower corner adj

Bow

Horizontal parallelogram

S correction

Vertical shift

Vertical zoom

Timing of Wide Blanking

Vertical slicing level

Over voltage input mode

Vertical guard mode

Yes

Adjust if necessary

Adjust

explanation

29"S-SLIM

Adjust or not

100

N-EU EU Remarks

Adjust

Item

OVMADAPT

OVMTHR

ADC LEV

DEC LEV

MONO LEV

NICAMLEV

FILTBW

BAMA FC

AUX3 VOL

FMWINDOW

BOOSTVAL

MAX VOL

DCXO VAL

DCXOA

TEXT-V

TEXT-H

DBB GAIN

OVERMODULATIONADAPT

OVER MODULATION THRESHOLD

ADC LEVEL (-16 ~ 15) – ADCLEV

DEC LEVEL (-16 ~ 15) – DECLEV

MONO LEVEL (-16 ~ 15) – MONOLEV

NICAM LEVEL (-16 ~ 15) – NICLEV

FILTER BANDWIDTH

BASSMANAGEMENTFREQUENCYCHAR.

AUX3 VOL (SCART1 RF SOUND OUT)

FM WINDOW FILTER (FMWS)

MAX VOLUME

DCXO

TEXT POSITION – VERTICAL

TEXT POSITION – HORIZONTAL

Dynamic Bass Booster

100

FM pre-scaler (Stereo L/R)

FM pre-scaler (Mono)

NICAM pre-scaler

Scart pre-scaler

For 29FU3 Tool

Adjust explanation

- 9 -

Only for training and service purposes. LGE Internal Use Only

OPTION DATA in BOM ,for example:

LEVEL PART NO. SPECIFICATION DESCRIPTION

1. 3141VMN382A MAIN CHASSIS ASSY [112,68,164,32,8]

Remarks

Adjust

Item

BKS

BSD

DSK

COR

RPO

RPA

PWLDAC

IFOFF

CHSE

ACL

CLPDEL50

CLPDEL60

CLPLEN

CLMPID

Degauss

WHITE STRETCH

BLACK STRETCH

BLACK STRATCH DEPTH

DYNAMIC SKIN CONTROL

VIDEO DEPENDENT CORING

PEAKING FREQUENCY DELAY

RATION POSITIVE/NEGATIVE PEAK

RATION PRE/AFTER SHOOT

PWLDAC PEAK WHITE LIMITER DAC

IF DEMODULATIOR

CHROMA SENSITIVITY

AUTO COLOR LIMITING

PAL CLAMPING DELAY

NTSC CLAMPING DELAY

CLAMPING PULSE LENGTH

CLAMPING DURATION

W degauss

Adjust explanation

LPDK

TS-AK LPDSG

TS-AK

[Table 8] SERVICE 4

ITEM

INCH

SYSTEM

200PR

TOP

ACMS

CH-AU

SCREEN

Chassis

PIP

VOL CURVE(volume curve)

A2 STEREO

I/II SAVE

AV3

SCART

DVD

XWAVE

EYE

4KEY

TILT

DBB

OSD LANG

TXT LANG

USB (Southeast Asia& Arab)

AV2

REMOCON

HOTEL

TURBOSCH (Turbo search)

TURBOP/S

(Turbo picture/sound)

COUNTRY(Europe only)

LGEINVOL(Southeast Asia only)

BLUEBACK(Southeast Asia only)

QUARRAN(Arab &Europeonly)

TEXT

TS/AK CPT

OPTION1

OPTION2

OPTION3

OPTION4

OPTION5

Description

0: 29 S/Slim ,1: 28 "Flat , 2: 29" Flat, 3: 25" Flat

BG/DK/I/M, BG/DK/I/L

1: W/O TXT => 200PR, 0: W/TXT => 100PR

0: FLOF,1: TOP=>Germany, Swiss, Austria, Italy

0: OFF,1: ON=>Auto channel memory system

0: Other Area,1: China & Australia Frequency table

0 : other CPT ,1: TS-AK CPT

CW62A: 0 /CW62C: 1/CW62D: 2

0: No PIP, 1: 1 Tuner PIP, 2: 2 Tuner PIP, 3:Reseved

0: EU=> Low curve, 1: NON-EU=> High curve

Nicam check & FM stereo / Dual

: OFF, 1: ON=>Dual sound setting save on

0 : W/O SIDE A/V, 1 : W/ SIDE A/V

0: No scart, 1: 1 SCART, 2: 2 SCART, 3: Reserved

0: W/O DVD, 1: W/ DVD

0: W/O X WAVE, 1: W/ WAVE

0: W/O EYE, 1: W/ EYE

0: 6 KEY, 1: 4 KEY

: W/O TLIT, 1: W/TILT

0 : W/O DBB except 29FU3, 1 : W/ DBB Only 29FU3

Refer to the next page(table.14)

0 : W/O USB Model , 1: W/ USB Model

0:W/O AV2 CW62E OPT(W/O SIDE AV NO AV2)

1: W/AV2 CW62A/C/D ALWAYS 1

TXT/MIX ONE BUTTON:0 TXT MIX TWO BUTTONS:1

0: Normal, 1: HOTEL option

0:EU(RZ)=>W/OTurbosearch,1:NON-EU(RT)=>W/Turbosearch

0: W/O Turbo picture & sound,

1: W/ Turbo picture & sound

0: NON MA Menu, 1: MA Menu

0:Others,1:LGEINVolume

0: Blue back off, 1: Blue back on

0: W/O Quarran, 1: w/ Quarran

1:W/ TEXT , 0: W/O TEXT

1:TS/AK CPT, 0: NON-TS/AK CPT

[Table 12] OPTION 1,2,3,4,5

<Table 9> OSD & TEXT LANGUAGES

- 10 -

Southeast Asia TEXT

EAST EU CYRILLIC TEXT

WEST EU GREEK TEXT

ENGLISH

SOUTHEAST ASIA

RESERVED

ENGLISH

EAST EU ALL

ENGLISH RUSSIAN

RESERVED

ENGLISH

EU 7EA

WEST EU ALL

ENIGLISH GREEK

RESERVED

ENGLISH

INDONESIAN

MALAY

VIETNAMESE

THAI

ENGLISH

GERMAN

RUMANIAN

POLISH

HUNGARIAN

CZECH

RUSSIAN

BULGARIAN

ENGLISH

RUSSIAN

ENGLISH

GERMAN

FRENCH

ITALIAN

SPANISH

NETHERLANDISH

PORTUGUESE

ENGLISH

GERMAN

FRENCH

ITALIAN

SPANISH

NETHERLANDISH

SWEDISH

NORWEGIAN

DANISH

FINNISH

PORTUGUESE

GREEK

ENGLISH

GREEK

Only for training and service purposes. LGE Internal Use Only

- 11 -

ARAB TEXT

FARSI TEXT

Southeast Asia W/O TEXT

WEST EU W/O TEXT

EAST EU W/O TEXT

ARAB W/O TEXT

CHINA, INDIA W/O TEXT

Korea/Middle south America

Taiwan

ENGLISH

ARABIC

FARSI

ARAB ALL

RESERVED

Same as ARAB TEXT

Same as Southeast Asia TEXT

Same as WESTEU GREEK TEXT

Same as EASTEU CYRILLIC TEXT

Same as ARAB TEXT

ENGLISH

CHINA

HINDI

RESERVED

ENGLISH

FRENCH

ARAB

URDU

ENGLISH

FRENCH

ARAB

FARSI

ENGLISH

FRENCH

ARAB

URDU

FARSI

ENGLISH

CHINESE

ENGLISH

HINDI

3.7 FM TX MODEL * (option)

FM TRANSMITTER MODEL send/receive state checking

method (FM Receiver Model)

FM TRANSMITTER Performance checking process after

antenna lay out.

FM TRNASMITTER Function: send TV sound (MONITOR

Output) to FM by receiver in MICOMBOARD, and achieve

sound signal by special remocon and ear-phone.

Remarks: Even if don’t use special remocon, ordinate FM

receiver equipment can receive sound signal with receive

frequency of OSD setting. .

Check in LG 5, 25 channel or channel with sound output.

Choose receive frequency of MENU OSD.

MENU => SOUND => TRANSMITTER => Frequency

(87.7MHz)

Check output sound signal of MAIN SPEAKER in ear-

phone or other receive equipment.

In FM TX check process.there is not any change of adjust

DATA or others.

4. Shipping condition.

4.1. Shipping Mode

Do push IN-STOP KEY using by R/C and it, will be done

shipping mode.

4.2. Shipping condition

[Table 15]

Only for training and service purposes. LGE Internal Use Only

- 12 -

4.2.1 PSM MODE Default Setting (PAL)

[Table 16]Picture Mode Default Setting

5. OPTION Adjustment (PAL)

1) OPTION adjustment decide Model Function, press IN-START

KEY of remocon and enter adjustment mode. Then choose

OPTION 1, 2, 3, 4, 5 to adjust separately.

2) OPTION1 scope (0~255), OPTION2 scope (0~255),

OPTION3 scope (0~250),

OPTION4 scope (0~337), OPTION5 scope (0~252).

Using Vol. +, - and CH +, - KEY directly input. (OPTION data

automatic setting)

3) OPTION data in BOM (Chassis Assy SPECIFICATION) show:

such as [111,111,111.111,111]

6. SOUND PRE-SCALER

This SVC setting value is set since Model design for standard, so

adjustment should not be done at manufacture process. This

adjustment specification shows for only reference.

Audio Out Level SPEC

PAL B/G, D/K, I : 500mVrms at 54 % modulation ratio.

SECAM B/G, D/K, L/L’ : 500mVrms at 54 % modulation ratio.

PSM

CONTRAST

BRIGHT

COLOR

SHARPNESS

Dynamic

100

Standard

Mild

Game

Power

Input

MEMORY

CHANNEL

SOUND

MUTE

PSM

SSM

TORBO SOUND

AVL

BALANCE

ON/OFF TIME

AUTO SLEEP

CHILD LOCK

DEGAUSS

EYE

TILT

BLUE BACK

BOOSTER

ITEM

No. Shipping condition

OFF

CH. MEMORY refer to

manage benchmark

30 STEPS

OFF

DYNAMIC

FLAT

OFF

Remarks

only 29FU3 Tool is Music

only 29FU3 Tool is ON

OPTION

Only for training and service purposes. LGE Internal Use Only

TROUBLE SHOOTING

- 13 -

1. RF-STEREO MODEL

1) PICTURE OK / NO SOUND

Check/ Replace TU101 or Input signal

Selected correct system in menu

Check the waveform IF 1 of TU101

Check the voltage at pin 3, 9, 16, 43,

86, 88, 90 of UOCIII

NO Check/ Replace IC501

Check the voltage at pin 57, 58 of

UOCIII

Check the waveform at pin 4, 5 of IC501

Check the waveform at pin 4, 2 of IC601

Check/ Replace Q601

Check the waveform at pin 6 of IC601

Check/ Replace IC601

Check the waveform at pin 8, 9, 11, 12

of IC601

Check/ Replace R823, D826

Check the Heater voltage of

CPT(6~6.4 Vrms)

Check R, G, B out of CPT board

Check IC901,

P403A

Check 197V line of CPT Board &

if no problem check and Replace

Check the Heater pulse of FBT T402

Check FR901, P403A,

P902B, FR401 Check FBT T402

Check HV, Screen voltage of CPT

Check FBT T402

Check the waveform at pin 5, 7 of IC601

2) No Raster / Sound OK(1/2)

Only for training and service purposes. LGE Internal Use Only

- 14 -

3) No Raster (2/2)

Check the in/out of

regulator(IC822,

IC823, IC824)

Check pin 73 of

IC501(H_Out) Check the voltage of

C832

Check/ Replace Fuse

Is the voltage each

pin voltage of IC501 Check Fuse of AC line

Check/ Replace

IC501

Check T401 & each

pin voltage

Check Q401collect

waveform

Check & Replace

T402

Check the voltage

pin4 of IC801

Check/ Replace

IC801, IC802, Q830

Check Fuse and Diode of secondary

Load of SMPS trans(T801)

Check the B+at D829

cathode

OPEN

Check/ Replace DB801

Check/ Replace Fuse and IC801

Normal Abnormal

Check/ Replace

Q402

Check/ Replace

T401

Check/ Replace

Q401

Check Q402

collector waveform

Check/ Replace IC501

Only for training and service purposes. LGE Internal Use Only

- 15 -

4) No Picture/ No Sound

Is any OSD displayed?

NO NO

P20A (R, G, B out of

IC501) P20A (R, G, B out of

IC501)

Replace IC501

Check pin7, 8 SCL,

SDA Check IC12(EEPROM)

& SCL, SDA, Line

Check pin3 Reset

Voltage

Check IC501 pin 83,

84, 85 (R, G, B out) Check SMPS Trans

Secondary Voltage Go to No sound/

picture OK

Check the waveform

pin73(H-out)

Check IC501 pin 83,

84, 85 (R, G, B out) Check receiving system in MENU

& execute Auto - Program

Does the auto - Program

operate properly

Store on manual -program MENU

Only for training and service purposes. LGE Internal Use Only

- 16 -

2. AV STEREO/ MONO MODEL

Select correct system in menu

OK OK

Does the auto - Program

operate properly Check TU101 Tuner

Check the voltage of pin3, 9,

16, 43, 86,88,90 of IC501

Check the waveform at

pin57, 58 of IC501

Check the signal line of SPK-N,P

Check the waveform at

pin4, 12, of IC601

Check pin5 (mute) of IC501

Check the waveform at

pin6 of IC601

Check the connection of AV

equipment

Check the connection of side

or Front AV Board P201A

Check the voltage at

pin5, 7, of IC601 Check/ Replace

R823, D826

Correct the Board

Check the waveform at

pin8, 9, 11, 12 of IC601

Replace IC601

Only for training and service purposes. LGE Internal Use Only

- 17 -

PRINTED CIRCUIT BOARD

MAIN

Only for training and service purposes. LGE Internal Use Only

- 18 -

POWER

CONTROL

LED

SIDE AV PIP (Option)

Only for training and service purposes. LGE Internal Use Only

BLOCK DIAGRAM

- 19 -

Only for training and service purposes. LGE Internal Use Only

- 20 -

EXPLODED VIEW

105

120

170 150

400

913

174

590

520

570

943

611

530

310

311

600

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

112

320

330

331540

300

Only for training and service purposes. LGE Internal Use Only

This manual suits for next models

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