Philips _lpl_lcd_2k8_sm Datasheet

Colour Television Module

LPL (LG Philips LCD) LCD 2k8

LC320WXD, LC320WXN

LC370WUF, LC370WXE

LC420WUE, LC420WUF, LC420WXE

LC470WUE, LC470WUF, LC470WXN

Contents Page

1. Revision List 2

2. Technical Specifications and Connections 2

3. Precautions, Notes, and Abbreviation List 4

4. Mechanical Instructions 6

6. Alignments 22

5. Service Modes, Error Codes, and Fault Finding 21

7. Circuit Descriptions 22

8. IC Data Sheets 22

9. Block Diagrams 22

10. Circuit Diagrams and PWB Layouts 22

©

Copyright 2008 Koninklijke Philips Electronics N.V.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic, mechanical,
photocopying, or otherwise without the prior permission of Philips.

Published by MB/RT 0972 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 17783

2009-Dec-18

EN 2 LCD LPL 2k81.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Added: LC370WXE-SAA1.

Manual xxxx xxx xxxx.2

• All chapters: LC370WUF-SAB1 added.

• Ch.1: Model numbering explained.

• Ch.9: Text updated.

• Ch.10: Text updated.

Manual xxxx xxx xxxx.3

• All chapters: LC470WXN added.

2. Technical Specifications and Connections

Index of this chapter:

2.1

Introduction

2.2 General

2.3 Specifications

Specifications are indicative (subject to change).

2.1 Introduction

In this Service Manual you will find all necessary information to
perform the Board Level Repair (= board swap) scenario on
LCD panels. These LCD repair manuals are created per brand,
and they will contain all necessary information for the different
panels used in Philips flat LCD TVs.

2.2 General

Number of order progress.

The Marking position could be different each model of T-Con or inverter P/N.

This picture is different from origin model.

Please Use it only as a reference.

T-CON Board

Case 1

Case 2

Inverter

(Master)

(Slave)

2009-Dec-18

Figure 2-1 LPL board labelling

H_16890_024.eps

230507

Technical Specifications and Connections

LPL ଶ L ଷ

Model

Model

ྙྚྛ೸ ྜ ೶ྜྷ ྞྟྠྡ

ྡྷྣ ྤ

LC4 2 0W X 2

ྥ

A

ྦྷྦ

Product Type

-.C : T.V

-.M : Monitor

-.P : Note Book

-.S : Smart Panel

-.N : Navigation

Panel Size.

-. 019೸1.94”, 141೸14.1”,

-. 181೸18.1”, 201೸20.1”,

-. 320೸32”, 42”೸420…

Inch

Resolution

Q - QVGA(320X240)
H - HVGA(320X480)
V - VGA(640X480)
S - SVGA(800X600)
X - XGA(1024X768)
E - SXGA(1280X1024)
U - XGA(1600X1200)
T - QXGA(2048X1536)
F - QSXGA(2560X2048)
G -QUXGA(3200X2400)
W -Wide
J -CIF
N -NTSC
P -PAL
B - NTSC & PAL
C - SECAM
A - NTSC/PAL/SECAM
D -HD

-. 1~99, & AA~ZZ

-. ex) LP141X09,LP141X10
… LP141X99

, LP141XAA,

Development #

T : TN : Twist Numeric

S : IPS : In Plane Switching

A ~ Z
Ex) P1 - ”A”, P2 - ”B”,

P3 - ”C”, P4 – “D”,
P5 - ”E”, P6 - ”F”

P7- ”G”

Display Mode

Product Revision Code

A : Best
A1 : Good
B : Not bed

Quality Grade

VGA 640 x 480

SVGA 800 x 600

XGA 1,024 x 768

SXGA 1,280 x 1,024

SXGA+ 1,400 x 1,050

WSXGA 1,600 x 1,024

WSXGA+ 1,680 x 1,050

UXGA 1,600 x 1,200

UWXGA 1,920 x 1,200

QXGA 2,048 x 1,536

G 3 1S L A 1

16 17 18 19

Product Mechanical Type

Panel Line

Module Factory

Gumi -1
China -2
Paju -3
Poland-4

Revision No

kGaG{{sGaG{T{Gs
{GaG{tkzGaG{Gt¡GkGz
sGaGs}kzGaGsG}GkGz

Basic Model

Basic Model

Suffix1

Suffix1

Suffix2

Suffix2

ఐ Suffix 1 : Distinguishable Display mode, Mechanical & Optical Specification – Revise Spec.
ఐ Suffix 2 : Internal control No - Change sub- parts or process & Only a few change spec.

I_16892_017.eps

310708

EN 3LCD LPL 2k8 2.

2.3 Specifications

Figure 2-2 LPL model numbering

Below find attached the data sheets of the different LCD
panels. Click on the “model number” to open.

• LC320WXD-SAB1

• LC320WXN-SAB1

• LC370WUF-SAB1

• LC370WXE-SAA1

• LC420WUE-SAA1

• LC420WUF-SAA1

• LC420WUF-SAC1

• LC420WXE-SAA1

• LC470WUE-SAA1

• LC470WUF SAA1

• LC470WUF-SAC1

• LC470WXN-SAA1

2009-Dec-18

EN 4 LCD LPL 2k83.

Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

Index of this chapter:

3.1

General

3.2 Safety Precautions

3.3 Servicing Precautions

3.4 Abbreviation List

3.1 General

Notes:

• Only authorised persons should perform servicing of this
module.

• When using/handling this unit, pay special attention to the
LCD Module: it should not be enforced into any other way
then next rules, warnings, and/or cautions.

• "Warning" indicates a hazard that may lead to death or
injury if the warning is ignored and the product is handled
incorrectly.

• "Caution" indicates a hazard that can lead to injury or
damage to property if the caution is ignored and the
product is handled incorrectly.

3.2 Safety Precautions

3.2.1 Warning

• Do not supply a voltage higher than specified to this
product. This may damage the product or can create
hazardous situations.

• Do not use this product in locations where the humidity is
extremely high, where it may be splashed with water, or
where flammable materials surround it.

• Do not install or use the product in a location that does no
satisfy specified environmental conditions. This may
damage the product or can create hazardous situations.

• If a foreign substance (such as water, metal, or liquid) gets
inside the product, immediately turn “OFF” the power.
Continuing to use the product may cause electric shock or
can create hazardous situations.

• If the product emits smoke and abnormal smell, or makes
an abnormal sound, immediately turn “OFF” the power.
Continuing to use the product may cause electric shock or
can create hazardous situations.

• Do not (dis)connect the connector while power to the
product is “ON”. It takes some time for the voltage to drop
to a sufficiently low level after the power has been turned
“OFF”. Confirm that the voltage has dropped to a safe level
before (dis)connecting the connector.

• Do not pull out or insert the power cable from/to an outlet
with wet hands. It may cause electric shock.

• If the power cable is damaged, or if the connector is loose,
do not use the product, otherwise, this can lead to
hazardous situations or may cause electric shock.

• The LCD Backlight Inverter unit uses a high voltage for the
lamps. Keep the cautions concerning electric shock and do
not touch the device circuitry handling the inverter unit. And
because the capacitors of the device circuitry may remain
charged at the moment of Power “OFF”, standing for 1
minute is required in order to discharge the device circuitry.

3.2.2 Caution

• Do not place this product in a location that is subject to
heavy vibration, or an unstable surface such as an inclined
surface. The product may fall off or fall over, causing
injuries.

• Before disconnecting cable from the product, be sure to
turn off the power. Be sure to hold the connector when
disconnecting cables. Pulling a cable with excessive force

may cause the core of the cable to be exposed or break the
cable, and this can lead to fire or electric shock.

• This product contains glass. If shock, vibration, heat or
distortion is applied to the product, the glass may be
broken.

• If glass surface of the display breaks or is scratched, do not
touched the broken pieces or the scratched with bare
hands. You may be injured.

• LCD Module requires to be handled with special care. LCD
Module is not to be touched with metal or hard materials.
Must not be stressed by heat or mechanical impact.

• There are some particular components on the rear panel of
this product. Skin contact with these components may
cause an electric shock. So, handle with care.

• While moving the product, be sure to turn off the power,
disconnect all cables and watch your step. Dropping the
product may cause injuries from electric shock. So, while
moving the product handle with care.

• When cleaning the panel is necessary, wipe it with a soft
and moistened cloth a neural detergent. Caution on
connector area. Do not use chemicals such as thinner or
benzene.

• LCD Module emits heat from the Lamp, Backlight lamp,
and component parts. Therefore, the environmental
temperature must not exceed 50 deg. C. LCD Module
Backlight Inverter system is driven by high voltage, so it
must avoid conductive materials.

• If repairing components with a lead line, high voltage or
high temperature components must be put out from a lead
line and fix.

• Do not place an object on the surface of the display. The
glass may break or be scratched.

• This product may be damaged if it is subject to excessive
stresses (such as excessive voltage, current, or
temperature). The absolute maximum ratings specify the
limits of these stresses.

• Do not cover or wrap with any covering materials while
power is applied to the product.

• This product is made from various materials such as glass,
metal, and plastic. When discarding it, be sure to contact a
purchase place.

• If a discrepancy occurs due to any arbitrary modification or
disassembly, supplier is not responsible for function,
quality or other items.

• Within the warranty period, general faults may be charged
for depending on responsibility for the faults. You handle
with care

3.3 Servicing Precautions

A colour TFT LCD Module can easily be damaged by both
electrical and mechanical stresses. Users therefore, are
requested to follow the “Servicing precautions of colour TFT
LCD Module” on the following.

3.3.1 System Assembler

• Follow the power sequence: An abnormal power
sequence may cause critical malfunction or electrical
damage.

• Prevent physical stress.

• Prevent overheat:
– High temperatures on the surface of the screen may

cause poor quality. Please use the LCD Module on the
specified temperatures.

– Low temperatures (under 10 deg. C) makes the LCD

Module respond slowly, make the Backlight worse
operated, and will shorten very much the lifetime
accordingly.

2009-Dec-18

Precautions, Notes, and Abbreviation List

EN 5LCD LPL 2k8 3.

• Keep LCD Module dust-free: The LCD Module is
sensitive against dust; it can cause visual or functional
problems.

• Do not touch TCP area: Do not touch TCP area at any
case. It can cause Driver IC cracks, film cracks, etc. The
TCP is the weakest point of the LCD Module.

• Do not pull Backlight wire: Please do not pull the
Backlight wire, as it can cause the wire to become
disconnected or damaged.

• Check the connections of the Inverter & Backlight
connectors: Incomplete connection can cause burnt in
Backlight connectors or damage the inverter.

• Handle with care:
– Please do not drop, bend, or hit the LCD Module.
– Physical stress can cause defects as broken panels.

• Keep mounting screw length and motor driver’s
torque: Strong motor driver’s torque can make a
mechanical defect on LCD Module. Please keep within the
specifications.

• Do not operate for a long time under the same pattern:
Operating the LCD Module for a long time with the same
video pattern can cause image persistence and can
eventually damage it.

• Defective panels must also be handled with care:
– To prevent making other defects, please handle the

defective LCD Module as a good one.

– Defective LCD Modules must be repaired.

• Do not stack LCD Modules: The LCD Module consists of
fragile components such as TCPs or Glasses. Stacking the
LCD Modules can cause undesired defects.

• Do not provide strong pressure at connecting: Strong
pressure can transfer the force to the TCP, which is the
weakest part of the LCD Module. It eventually can make
the TCP crack or lead to other unexpected defects.

• Let the Backlight Wire at the backside of the LCD
Module: If let the Backlight wire in front of the LCD Module,

the Backlight connector can hurt the surface of the
polariser.

• Never (dis)connect at power “ON”: The LCD Module
consists of CMOS components, which are known as weak
components against EOS. It can damage the product.

• Electrostatic discharge can make damage:
– Semi-assembled product should be handled with wrist

strap.
– Earth human body when handle the LCD Module.
– Please do not touch the interface connector pin.

3.3.2 System Assembler/End User

• Keep clean the surface:
– Please wear rubber gloves when you touch the surface

of the LCD Module screen.

– Please use soft and anti-static material with n-Hexane

as cleaner.

• Be careful not to make polariser scratch:
– Surface of polariser is soft, so it’s easily scratched.
– Please do not touch, press or rub on polariser surface

with materials over HB hardness.

• Be careful with swift temperature and humidity
changes: Swift temperature and or humidity change can
make dew condensation or ice, which can cause non­conformance such as malfunctioning.

• Keep out of water:
– Water on in the LCD Module can cause electrical short

or corrosion.

– Please wipe out or dry water carefully.

• Keep the LCD Module free from corrosive gasses:
Corrosive gas can chemically damage the polariser and
the circuitry parts and eventually will cause defects.

• Keep the suitable temperature and humidity: High
temperatures and high humidity will shorten the lifetime

3.4 Abbreviation List

AUO Acer Unipack Optronics (supplier)
CCFL Cold Cathode Fluorescent Lamp
CMO Chi Mei Optoelectronics (supplier)
COF Chip On Flex / Foil / Film
CPT Chunghwa Picture Tubes (supplier)
DC Direct Current
FET Field Effect Transistor
FFC Flat Foil Cable
FPC Flexible Printed Circuit
IC Integrated Circuit
IPB Integrated Power Board (PSU incl.

inverter)
LCD Liquid Crystal Display
LCM Liquid Crystal Module
LED Light Emitting Diode
LPL LG Philips LCD (supplier)
PCB Printed Circuit Board (same as PWB)
PSU Power Supply Unit
PWB Printed Wiring Board (same as PCB)
RGB Red, Green, Blue colour space
TCP Tape Carrier Package

2009-Dec-18

EN 6 LCD LPL 2k84.

H_16920_001.eps

060407

10000_018_090121.eps

090121

1

Required for sets

42"

1

Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

4.1

General

4.2 Model LC320WXD

4.3 Model LC320WXN

4.4 Model LC370WUF

4.5 Model LC370WXE

4.6 Model LC420WUE

4.7 Model LC420WUF

4.8 Model LC420WXE

4.9 Model LC470WUE

4.10 Model LC470WUF

4.11 Model LC470WXN

4.1 General

4.1.1 Warnings

• Figures can deviate due to the different module executions.

• During repair, place the set face down on a soft surface
(e.g. on foam bars as mentioned in next paragraph), in
order to prevent damaging the display.
Note: With some chassis, it is possible to measure and
replace the boards while the TV is still on its stand.

• All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential.

4.1.3 Foam Bars

Figure 4-1 ESD wristband

• Be careful during measurements in the high voltage
section. Never pull plugs out under operation conditions,
just to prevent danger caused by electrical sparks.

• Never replace modules or other components while the unit
is switched “on”.

• Connectors “to” and “from” the Inverter Boards must be

4.1.2 Inverter repair policy

thoroughly connected to avoid any electrical sparks during
operation.

Figure 4-2 Foam bars

The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of flat displays. See figure
“Foam bars” for details. Displays with a size of 42” and larger,
require four foam bars [1]. Ensure that the foam bars are
always supporting the cabinet and never only the display.
Caution: Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the display, you can
monitor the screen.

4.1.4 Torque Values

Table 4-1 Recommended Torque Values

Screw Type (cross head) Recommended Torque Value

M2 2.0 kg*F ± 0.1 kg*F

M2.5 3.0 kg*F ± 0.5 kg*F

M2.6 3.0 kg*F ± 0.5 kg*F

M3 6.0 kg*F ± 0.5 kg*F

Note: When an LCD display has a “master” and “slave” inverter
configuration, and one of these boards is defective, it is advised
to replace both the inverter boards (due to matching reasons).

2009-Dec-18

4.2 Model LC320WXD

Prepare the LCM. Separate the Screw(3EA)

Separate the Cover Shield

I_17780_009.eps

180408

MODEL: LC320WXD-SAB1

Separate the FFC(60pin). Separate the T-CON Board.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(60pin).

Replace of T-CON Board and
Assemble the FFC(60pin).

* Guide Pin station keeping check.

4.2.1 Control Board (T-CON Board)

Mechanical Instructions

EN 7LCD LPL 2k8 4.

Figure 4-3 Replacement instructions T-CON board

2009-Dec-18

EN 8 LCD LPL 2k84.

Prepare the LCM. Separate the Screw(3EA) Separate the Cover Shield

I_17780_010.eps

180408

MODEL: LC320WXD-SAB1

Unlock of Connector and
sperate the Wire Connector(2pin).

Separate the Inverter.

Attach the Cover Shield and
Assemble the Screw(3EA).

Assemble the Wire Connector(2pin).

4.2.2 Inverter (Master) Board

Mechanical Instructions

Figure 4-4 Replacement instructions Inverter (master) board

2009-Dec-18

4.3 Model LC320WXN

Separate the FFC(60pin).

Separate the T-CON Board.

Attach the Cover Shield and
Assemble the Screw(2EA).

Check the FFC(60pin).

Replace of T-CON Board and
Assemble the FFC(60pin).

* Guide Pin station keeping check.

Prepare the LCM. Separate the Screw(2EA)

Separate the Cover Shield

I_17780_001.eps

160408

MODEL: LC320WXN-SAA1

4.3.1 Control Board (T-CON Board)

Mechanical Instructions

EN 9LCD LPL 2k8 4.

Figure 4-5 Replacement instructions T-CON board

2009-Dec-18

EN 10 LCD LPL 2k84.

Separate the Inverter.

Attach the Cover Shield and Assemble the Screw(3EA).

Assemble the Wire Connector(2pin).

I_17780_002.eps

160408

MODEL: LC320WXN-SAA1

Prepare the LCM. Separate the Screw(3EA)

Unlock of Connector and
sperate the Wire Connector(2pin).

4.3.2 Inverter (Master) Board

Mechanical Instructions

Figure 4-6 Replacement instructions Inverter (master) board

2009-Dec-18

4.4 Model LC370WUF

MODEL: LC370WUF-SAB1

Separate the 96pin FFC. Separate the T-CON Board.

Replace of T-CON Board and
Assemble the 96pin FFC.

* Guide Pin station keeping check.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(96pin).

I_16892_018.eps

150808

Prepare the LCM. Separate the Screw(3EA) Separate the Cover Shield

4.4.1 Control Board (T-CON Board)

Mechanical Instructions

EN 11LCD LPL 2k8 4.

4.4.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

Figure 4-7 Replacement instructions T-CON board

2009-Dec-18

EN 12 LCD LPL 2k84.

Prepare the LCM. Separate the Screw(3EA)

Separate the Cover Shield

Separate the 60pin FFC. Separate the T-CON Board.

Replace of T-CON Board and
Assemble the 60pin FFC.

* Guide Pin station keeping check.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(60pin).

I_17781_001.eps

140708

MODEL: LC370WXE-SAA1

4.5 Model LC370WXE

4.5.1 Control Board (T-CON Board)

Mechanical Instructions

Figure 4-8 Replacement instructions T-CON board

4.5.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

4.6 Model LC420WUE

Prepare the LCM. Separate the Screw(3EA)

Separate the Cover Shield

Separate the 60pin FFC. Separate the T-CON Board.

Replace of T-CON Board and
Assemble the 60pin FFC.

* Guide Pin station keeping check.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(60pin).

I_17780_003.eps

160408

MODEL: LC420WUE-SAB1

4.6.1 Control Board (T-CON Board)

Mechanical Instructions

EN 13LCD LPL 2k8 4.

Figure 4-9 Replacement instructions T-CON board

4.6.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

EN 14 LCD LPL 2k84.

4.7 Model LC420WUF

4.7.1 Control Board (T-CON Board)

Mechanical Instructions

MODEL: LC420WUF-SAC1

Prepare the LCM. Separate the Screw(3EA)

Separate the 96pin FFC. Separate the T-CON Board.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(96pin).

Figure 4-10 Replacement instructions T-CON board

Separate the Cover Shield

Replace of T-CON Board and
Assemble the 96pin FFC.

* Guide Pin station keeping check.

I_17780_004.eps

160408

4.7.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

4.8 Model LC420WXE

4.8.1 Control Board (T-CON Board)

Mechanical Instructions

MODEL: LC420WXE-SAA1

EN 15LCD LPL 2k8 4.

Prepare the LCM. Separate the Screw(3EA)

Separate the 60pin FFC. Separate the T-CON Board.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(60pin).

Separate the Cover Shield

Replace of T-CON Board and
Assemble the 60pin FFC.

* Guide Pin station keeping check.

I_17780_005.eps

160408

Figure 4-11 Replacement instructions T-CON board

4.8.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

EN 16 LCD LPL 2k84.

Prepare the LCM. Separate the Screw(3EA)

Separate the Cover Shield

I_17780_006.eps

160408

MODEL: LC470WUE-SAB1

Separate the 96pin FFC. Separate the T-CON Board.

Replace of T-CON Board and
Assemble the 96pin FFC.

* Guide Pin station keeping check.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(96pin).

4.9 Model LC470WUE

4.9.1 Control Board (T-CON Board)

Mechanical Instructions

Figure 4-12 Replacement instructions T-CON board

4.9.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

4.10 Model LC470WUF

Separate the 96pin FFC. Separate the T-CON Board.

Replace of T-CON Board and
Assemble the 96pin FFC.

* Guide Pin station keeping check.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(96pin).

I_17780_007.eps

160408

MODEL: LC470WUF-SAC1

Prepare the LCM. Separate the Screw(3EA) Separate the Cover Shield

4.10.1 Control Board (T-CON Board)

Mechanical Instructions

EN 17LCD LPL 2k8 4.

Figure 4-13 Replacement instructions T-CON board

4.10.2 Inverter (Master) Board

These displays have the Inverter Board located on the PSU.
This is a so-called IPB (Integrated Power Board).

2009-Dec-18

EN 18 LCD LPL 2k84.

Prepare the LCM. Separate the Screw(3EA) Separate the Cover Shield

17783_100_091218.eps

091218

Separate the FFC(60pin).

Separate the T-CON Board.

Attach the Cover Shield and
Assemble the Screw(3EA).

Check the FFC(60pin).

Replace of T-CON Board and
Assemble the FFC(60pin).

* Guide Pin station keeping check.

4.11 Model LC470WXN

4.11.1 Control Board (T-CON Board)

Mechanical Instructions

Figure 4-14 Replacement instructions T-CON board

2009-Dec-18

4.11.2 Inverter (Master) Board

Prepare the LCM. Separate the Screw(4EA)

Separate the Cover Shield

17783_101_091218.eps

091218

Unlock of Connector and

sperate the Wire Connector(2pin).

Separate the FFC(11pin).

Separate the Inverter.

Attach the Cover Shield and
Assemble the Screw(4EA).

Assemble the Wire Connector(2pin). Replace of Inverter and

Assemble the FFC(11pin).

Mechanical Instructions

EN 19LCD LPL 2k8 4.

Figure 4-15 Replacement instructions Inverter (master) board

2009-Dec-18

EN 20 LCD LPL 2k84.

Prepare the LCM. Separate the Screw(4EA) Separate the Cover Shield

17783_102_091218.eps

091218

Unlock of Connector and
sperate the Wire Connector(2pin).

Separate the FFC(11pin) .

Separate the Inverter.

Attach the Cover Shield and
Assemble the Screw(4EA).

Assemble the Wire Connector(2pin). Replace of Inverter and

Assemble the FFC(11pin).

4.11.3 Inverter (Slave) Board

Mechanical Instructions

Figure 4-16 Replacement instructions Inverter (slave) board

2009-Dec-18

Service Modes, Error Codes, and Fault Finding

- Exchange Inverter :

Case.15 ~ Case18

(Back light No light / dim light
left,right,center)

- Exchange Control Board : Case.1 ~ Case14
(Abnormal display / No display /Noise)

H_16890_004.eps

161107

Case 1 Abnormal Display

T-CON, Solder defect, CNT Broken

Case 2 Abnormal Display
Case 3 Abnormal Display
Case 4 Abnormal Display
Case 5 Abnormal Display
Case 6 Abnormal DisplayAbnormal Power section
Case 7 Noise Solder defect, Short / Crack
Case 8 Abnormal DisplayA

bnormal Power section
Case 9 Noise Solder defect, Short / Crack
Case 10 Abnormal DisplayAbnormal Power section
Case 11 Abnormal DisplayAbnormal Power section
Case 12

Noise Solder defect, Short / Crack

Case 13
Case 14 No DisplayFuse Open, Abnormal power section
Case 15 No Light Inverter (one or both)
Case 16 dim Light Inverter (one or both)
Case 17 dim Light Inverter (one or both)
Case 18

dim Light Inverter (one or both

5. Service Modes, Error Codes, and Fault Finding

EN 21LCD LPL 2k8 5.

Index of this chapter:

5.1

Service Modes

5.2 Error Codes

5.3 Fault Finding

5.1 Service Modes

Not applicable.

5.2 Error Codes

Not applicable.

5.3 Fault Finding

Figure 5-1 Symptom/Cure overview (part 1)

2009-Dec-18

EN 22 LCD LPL 2k86.

- Unrepairable : Case.19~ Case24

- Exchange Source TAB : Case 25~ Case28

- Exchange Gate TAB : Case 29~ Case33

Alignments

Case 19 Panel Mura CELL Defect
Case 20 Panel Mura CELL Defect
Case 21 Panel Mura Press damage
Case 22 Crosstalk CELL Defect
Case 23 Crosstalk CELL Defect
Case 24 Panel Mura Press damage

Case 25 Vertical-block D-IC Crack / TCP/COF abnormal bonding
Case 26 Vertical-line D-IC abnormal output
Case 27 Vertical-block D-IC Crack / TCP/COF abnormal bonding
Case 28 Vertical-block D-IC Crack / TCP/COF abnormal bonding
Case 29 Horizontal-block D-IC Crack / TCP/COF abnormal bonding
Case 30 Horizontal-block D-IC Crack / TCP/COF abnormal bonding
Case 31 Horizontal-line D-IC abnorm
Case 32 Horizontal-block D-IC Crack / TCP/COF abnormal bonding
Case 33 Horizontal-block D-IC Crack / TCP/COF abnormal bonding

al output

6. Alignments

Not applicable.

7. Circuit Descriptions

Not applicable.

8. IC Data Sheets

Not applicable.

Figure 5-2 Symptom/Cure overview (part 2)

H_16891_004.eps

161107

9. Block Diagrams

Not applicable.

10. Circuit Diagrams and PWB Layouts

Not applicable.

2009-Dec-18