Philips LCD_Sharp_2k9_3122-785-18481 Datasheet

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Page 1

Colour Television Module

Sharp LCD 2k9

LK520D3LA13

LK558Z3LA1P, LK558Z3LA13

Contents Page

1. Revision List 2

2. Technical Specifications and Connections 2

3. Precautions, Notes, and Abbreviation List 5

4. Mechanical Instructions 7

5. Service Modes, Error Codes, and Fault Finding 12

6. Alignments 16

7. Circuit Descriptions 16

8. IC Data Sheets 16

9. Block Diagrams 16

10. Circuit Diagrams and PWB Layouts 16

Copyright 2009 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 JA/MW 0964 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 18481

2009-Apr-24

Page 2

EN 2 LCD Sharp 2k91.

Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Added LK520D3LA13.

2. Technical Specifications and Connections

Index of this chapter:

2.1 Introduction

2.2 General

2.3 Technical Specifications

2.4 Pixel Specifications

Note: Specifications are indicative (subject to change).

2.2 General

1234567891011

LK5 58Z3LA13

1 - Display Technology

L D Full HD 1920x1080 A

2 - Production Plant

…

3, 4, 5 - Display Size

315 1 … 370 3 420 5 470 2 520 4 1st digit 558 6 2nd digit

………

LCD

Kameyama

32 inch 37 inch 42 inch 47 inch 52 inch 56 inch

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.

6 - Display Resolution

T HD ready 1280x720 C Z

……

7 - Display Type

Cinemascope

Transmissive (OA) Transmissive (AV) Transmissive (Car) Reflective (OA) Reflective (AV) Reflective (Car)

2560x1080 L

8 - Input Signal Type / BL

9 - Display Type

A Z

10, 11 - Serial Number

Analogue Composite LVDS

External User Internal Sharp

3 = Philips

18480_001_090401.eps

090401

2009-Apr-24

Figure 2-1 Type number explanation



䌌䌋䋵䋵䋸䌚䋳䌌䌁䋱䋳

㪐㪈㩷㪢䋰䋰䋰䋰䋱



2D Barcode

How to express the Lot number

Number for production month (1-9. X= 10, Y=11, Z=12)

Number for A production year (Number on manufacturing year's right edge)

/QFWNG0Q $CTEQFG

.QV0Q

Serial number of product

Product Factory

Management number

18480_002_090401.eps

090401

Figure 2-2 Serial number explanation

Page 3

Technical Specifications and Connections

EN 3LCD Sharp 2k9 2.

2.3 Technical Specifications

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

• LK520D3LA13

• LK558Z3LA1P (= LK558Z3LA13 with inverters)

2.4 Pixel Specifications

Philips CE Flat Panel SQA

Reference:

FPSQ090101SI

Starting point for judgment of cosmetic defects: any cosmetic defect is unacceptable when visible within 10 seconds at a viewing distance of 4 x height of the display

Note 1. At all realistic test patterns and specied viewing angles Note 2. At ambient room conditions (25 ± 3 Note 3. Customer opinion prevails.

Date:

1-Jan-2009

Cosmetic spec waiver

12NC:

All TV model

C, 65 ± 5 % RH) with non -directive lighting (luminance 150 Lux)

Part name:

All TV model

Expire date:

31-Dec-2009

1,2,3

2009 waiver for Sharp LCD panels:

Defect A grade (0/7/7) Remarks

Bright defect (full/half dot defect, foreign material in panel or under polarizer)

Dark defect (dot defect or foreign material on backlight)

Polarizer scratch Max 5 W<0.2 mm, L<5 mm Should not be visible when panel is switched o,

Non-uniformity (mura) Black uniformity: judge at 150 Lux

Min distance between defects: 15 mm.

No full bright dots. Max 10 weak bright defects:

• Point defects: ≤50% sub-pixel area or not visible using 2% ND lter.

• Long defect: not visible using 2% ND lter, L<5mm

Max 7 dark dots (adjacent dark dots count as 2). Max 14 half/dark dots (1 dark dot count for 2x½ DD) Max 5 point defect D<1.2 mm Max 5 long defect W<1mm, L<5 mm

Mid-grey mura: judge in moving picture (for example Philips “air show” or “Scooby Doo” clip)

Figure 2-3 Cosmetic specification waiver

2% ND lter judgment using black test pattern under 150 Lux environmental lighting :

HD: max 1 pair of adjacent dark dots, volume limit is 2% (dGG < 0.2%).

FHD: max 2 pair of adjacent dark dots, volume limit is 5% (dGG < 0.5%).

at 4xH distance, over the specied viewing angle range.

Supplier responsible to calibrate with internal panel inspection method.

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EN 4 LCD Sharp 2k92.

㪣㪢㪌㪌㪏㪱㪊㪣㪘㪈㪊

㪣㪢㪌㪌㪏㪱㪊㪣㪘㪈㪧

2.5 Board and Label Locations

2.5.1 32-inch models

Label sticking position (LK558Z3LZ1P)

Control-PWB

Technical Specifications and Connections

Inverter-PWB

91 K00001

Figure 2-4 Board and label location

Bar code label

18480_004_090403.eps

090403

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Page 5

Precautions, Notes, and Abbreviation List

3. Precautions, Notes, and Abbreviation List

EN 5LCD Sharp 2k9 3.

Index of this chapter:

3.1 General

3.2 Safety Precautions

3.3 Servicing Precautions

3.4 Notes

3.5 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 implement the following rules.

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.

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Page 6

EN 6 LCD Sharp 2k93.

Precautions, Notes, and Abbreviation List

• 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 the surface clean : – 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 scratch the polariser : – 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 Notes

3.4.1 Spare Parts

For the latest spare part overview, please consult your Philips Spare Part web portal.

3.5 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 LGD LG Displays (supplier) 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-Apr-24

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4. Mechanical Instructions

Mechanical Instructions

EN 7LCD Sharp 2k9 4.

Index of this chapter:

4.1 General

4.2 Model LK520D3LA13

4.3 Model LK558Z3LA1P

4.4 Model LK558Z3LA13

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.

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 thoroughly connected to avoid any electrical sparks during operation.

H_16920_001.eps

060407

4.1.2 Foam Bars

Required for sets

42"

E_06532_018.eps

171106

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.

4.1.3 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

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EN 8 LCD Sharp 2k94.

4.2 Model LK520D3LA13

Mechanical Instructions

4.2.1 Control Board

Disassembly

1. Place the panel face down on the foam bars, and locate the Control board.

Figure 4-3 Control board location

2. Remove the screws of the metal cover.

C-PWB Cover

18481_201_090423.eps

Reassembly

To reassemble, perform all processes in reverse order. Important: Be sure to insert the FFCs correctly.

090423

screw

× 4

6 mm

18481_202_090423.eps

Figure 4-4 Cover screws removal

3. Carefully disconnect the flat cable/FFCs from their connectors.

The FPC salient is put in the concave connector part, and the connector is locked properly

Ferrite core Ferrite core

18481_203_090423.eps

Figure 4-5 Flat cable removal

4. You now can remove the Control Board.

090423

2009-Apr-24

Page 9

4.2.2 Inverter Board

(

Disassembly

1. Place the panel face down on the foam bars, and locate the Inverter boards.

2. Remove the cover screws, and remove the cover.

3. Unplug and remove the Inverter boards as shown in next figure

Mechanical Instructions

EN 9LCD Sharp 2k9 4.

12 Lamp connectors

10 Lamp connectors

3: Detach lamp

connector on 12&10 places

Inverter

Rear view

㧝: Detach screw

at 6 places each

RDENC2559TPZF

slave - 1 side)

Figure 4-6 Unplug and remove Inverter board

Reassembly

To reassemble, perform all processes in reverse order.

2: Detach

RDENC2560TPZF

(master - 1 side)

connections

18481_204_090424.eps

090424

2009-Apr-24

Page 10

EN 10 LCD Sharp 2k94.

s 3

4.3 Model LK558Z3LA1P

Mechanical Instructions

4.3.1 Control Board

Disassembly

1. Place the panel face down on the foam bars, and locate the Control board.

Control-PWB

Inverter-PWB

Figure 4-7 Control board location

2. Remove the screws of the metal cover.

Inverter-PWB

18480_202_090403.ep

09040

Reassembly

To reassemble, perform all processes in reverse order. Important: Be sure to insert the FFCs correctly.

18480_201_090403.ep

Figure 4-8 Cover screws removal

3. Carefully disconnect the flat cable/FFCs from their connectors.

18480_203_090403.eps

Figure 4-9 Flat cable removal

4. You now can remove the Control Board.

09040

090403

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Page 11

4.3.2 Inverter Board

Disassembly

1. Place the panel face down on the foam bars, and locate the Inverter board (refer to figure “4.3 Control board location”).

2. Remove the cover screws, and remove the cover.

3. Unplug and remove the Inverter board as shown in next figure

Mechanical Instructions

EN 11LCD Sharp 2k9 4.

LK558Z3LA13:

Without Inverters

8mm

Inverter-PWB Cover



Figure 4-10 Unplug and remove Inverter board

Reassembly

To reassemble, perform all processes in reverse order.

4.4 Model LK558Z3LA13

The (dis)assembly process is identical to the LK558Z3LA1P. The only difference is that the LK558Z3LA13 comes without Inverters.

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EN 12 LCD Sharp 2k95.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Service Modes

5.2 Error Codes

5.3 Fault Finding

5.3.1 General

5.3.2 LK520D3LA13

5.3.3 LK558Z3LA1P and LK558Z3LA13

5.1 Service Modes

Not applicable.

5.2 Error Codes

Not applicable.

5.3 Fault Finding

5.3.1 General

No displa

Half displa

Figure 5-1 Symptoms for checking the Control Board

Horizont al stripe

Wavystripedispla

I_17811_026.eps

260908

No back light / Flickering Low brightness / Shut down

I_17811_027.eps

Figure 5-2 Symptoms for checking the Inverter Board

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5.3.2 LK520D3LA13

Service Modes, Error Codes, and Fault Finding

EN 13LCD Sharp 2k9 5.

Trouble Shooting Table

For Control –PWB (LK520D3LA13)

STEP 1 Phenomenon

1. No Display

2. Abnormal Display ޓޓ(Half Screen Image / Abnormal Display etc.)

STEP 2 Check cable connection to C-PWB Insert the connector correctly

ޓ1. Cable to LVDS or ޓ2. FPC between Source-PWB and Contorl-PWB Change the cable and FPC

STEP 3 Check Voltage

Check if CN1) 47 to 51pins of LVDS connector 㧔51pin) are

12V or not

STEP 4 Check if LVDS signal is input to following pins or not. ޓޓޓCN1ޓ12-17,19-20,23-25,28-34,36-37,39-41pin

STEP 5

Check if SELLVDS signal (CN1:7pin) is "H" or "Open" not.

No display

Half display Wavy stripe

Horizontal stripe

STEP 6 Check the main board of TV set

Exchange the C-PWB

Figure 5-3 Trouble shooting table for Control Board

18481_205_090424.eps

090424

2009-Apr-24

Page 14

EN 14 LCD Sharp 2k95.

Service Modes, Error Codes, and Fault Finding

Trouble Shooting Table

For Inverter –PWB(LK520D3LA13)

The possible failure phenomenon would be:-

1. No Back Light

2. Flickering

3. Low Brightnes

4. Shut down after 3 seconds from switching ON

Check cab le conn ection to Inverter 㧝㧚Cable to 14pin connector

Check Voltage Check if 1 to 5 pins of 14pin connector are 24V or not.

Check if 12pin of 14pin connector is 3.3V or not

Check if 13pin of 14pin connector is more than 3.3V o

not.

Exchange the Inverter and go to next stage

* If phenomenom #2, 3, or 4 still exist even

after exchange inverter.

3.3V or more

Insert the co nnector corre ctly

or Change the cable

Check the power supply

(the phenomenon should be #1 of "STEP1")

Check the main board of TV set (the phenomenon should be #1 of "STEP1")

Check if 14pin of 14pin connector is 3.3V or not

From 0V to3.3V

0V:㧦13pin

In ca s e of Phenomenon #1, 2, or 4, Inverter should be changed.

Check the voltage of 13pin of 14pin connector Brightness should be changed by voltage from 0 to 3.3V

In case of Phenomenon #1, 2, or 4, Inverter should be changed and go to next stage

No Backlight / Flickering

Low brightness /Shut down

From 0.5V to

3.3V=13pin

In ca s e of Phenomenon #3, it is normal.

In ca s e of Phenomenon #3, it is normal. (depend on voltage level)

18481_206_090424.eps

3.3V

090424

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Figure 5-4 Trouble shooting table for Inverter Board

Page 15

Service Modes, Error Codes, and Fault Finding

㫇

5.3.3 LK558Z3LA1P and LK558Z3LA13

Trouble Shooting Table ForControl-PWB (LK558Z3LA1P and 13)

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㪪㪫㪜㪧㩷㪉

㩷㩷䋱㪅㪚㪸㪹㫃㪼㩷㫋㫆㩷㫇㫆㫎㪼㫉䇭㫊㫌㫇㫇㫃㫐

䇭㪊㪅㩷㪝㪧㪚㩷㪹㪼㫋㫎㪼㪼㫅㩷㪪㫆㫌㫉㪺㪼㪄㪧㪮㪙㩷㪸㫅㪻㩷㪚㫆㫅㫋㫆㫉㫃㪄㪧㪮㪙㩷㪚㪿㪸㫅㪾㪼㩷㫋㪿㪼㩷㪺㪸㪹㫃㪼㩷㪸㫅㪻㩷㪝㪧㪚

㪪㪫㪜㪧㩷㪊㩷㪚㪿㪼㪺㫂㩷㪭㫆㫃㫋㪸㪾㪼

㪚㪿㪼㪺㫂㩷㫀㪽㩷䋨㪚㪥㪈㪀㪋㪎㩷㫋㫆㩷㪌㪈㫇㫀㫅㫊㩷㫆㪽㩷㪣㪭㪛㪪㩷㪺㫆㫅㫅㪼㪺㫋㫆㫉㩷㩽㩿㪚㪥㪊㪀㪈㫋㫆㪉㫇㫀㫅㫊㩷㫆㪽㩷㫇㫆㫎㪼㫉㩷㫊㫌㫇㫇㫃㫐㩷㪺㫆㫅㫅㪼㪺㫋㫆㫉㩷㪸㫉㪼㩷㪈㪉㪭㩷㫆㫉㩷㫅㫆㫋

㪦㪢

No display

Half display

㪥㪞

㫉㫆

㩷㩷㪪㪛㪭㪣㩷㫆㫋㩷㪼㫃㪹㪸㪚㩷㪅㪉䇭

㪥㪞

㩷㪚㪿㪼㪺㫂㩷㫋㪿㪼㩷㫄㪸㫀㫅㩷㪹㫆㪸㫉㪻㩷㫆㪽㩷㪧㫆㫎㪼㫉㩽㪫㪭㩷㫊㪼㫋

EN 15LCD Sharp 2k9 5.

Horizontal

Wavy stripe

㫐㫃㫋㪺㪼㫉㫉㫆㪺㩷㫉㫆㫋㪺㪼㫅㫅㫆㪺㩷㪼㪿㫋㩷㫋㫉㪼㫊㫅㪠㩷㪙㪮㪧㪄㪚㩷㫆㫋㩷㫅㫆㫀㫋㪺㪼㫅㫅㫆㪺㩷㪼㫃㪹㪸㪺㩷㫂㪺㪼㪿㪚㩷

㪪㪫㪜㪧㩷㪋㩷㪚㪿㪼㪺㫂㩷㫀㪽㩷㪣㪭㪛㪪㩷㫊㫀㪾㫅㪸㫃㩷㫀㫊㩷㫀㫅㫇㫌㫋㩷㫋㫆㩷㪽㫆㫃㫃㫆㫎㫀㫅㪾㩷㫇㫀㫅㫊㩷㫆㫉㩷㫅㫆㫋㪅䇭䇭䇭㪚㪥㪈䇭㪈㪉㪄㪈㪎㪃㩷㪈㪐㪄㪉㪇㪃㩷㪉㪉㪄㪉㪌㪃㩷㪉㪏㪄㪊㪊㪃㩷㪊㪌㪄㪊㪍㪃㩷㪊㪏㪄㪋㪈㫇㫀㫅㩷㪚㪿㪼㪺㫂㩷㫋㪿㪼㩷㫄㪸㫀㫅㩷㪹㫆㪸㫉㪻㩷㫆㪽㩷㪫㪭㩷㫊㪼㫋

㪦㪢

㪥㪞

䇭䇭䇭㪚㪥㪉䇭㪈㪇㪄㪈㪌㪃㩷㪈㪎㪄㪈㪏㪃㩷㪉㪇㪄㪉㪊㪃㩷㪉㪍㪄㪊㪈㪃㩷㪊㪊㪄㪊㪋㪃㩷㪊㪍㪄㪊㪐㫇㫀㫅

㪪㪫㪜㪧㩷㪌

㩷㩷㪚㪿㪼㪺㫂㩷㫀㪽㩷㪪㪚㪣㪃㪪㪛㪘㩷㫊㫀㪾㫅㪸㫃㩷㩿㪚㪥㪈㪀㩷㪉㩷㪸㫅㪻㩷㪊㫇㫀㫅䇭㫆㫉㩷㫅㫆㫋㪅

㪪㪫㪜㪧㩷㪍㩷㩷㪚㪿㪼㪺㫂㩷㫀㪽㩷㪤㪦㪛㪜㩷㫊㫀㪾㫅㪸㫃㩿㪚㪥㪈㪀㩷㪐㩷㫋㫆㪈㪇㩷㫇㫀㫅㩷㫀㫊㩹㪣㩹㫆㫉㩹㫆

㪼㫅㵱䇭㫅㫆㫋㪅

㪪㪫㪜㪧㩷㪎㩷㪚㪿㪼㪺㫂㩷㫀㪽㩷㪪㪜㪣㪣㪭㪛㪪㩷㫊㫀㪾㫅㪸㫃㩿㪚㪥㪈㪑㪎㫇㫀㫅㪀㩷㫀㫊㩷㩹㪣㩹㩷㫆㫉㩷㩹㪦㫇㪼㫅㩹

㪦㪢

㪥㪞

㫅㫆㫋㪅

㪪㪫㪜㪧㩷㪏

㪥㪞

㩷㪚㪿㪼㪺㫂㩷㫀㪽㩷㪦㪆㪪㩷㫊㫀㪾㫅㪸㫃㩿㪚㪥㪈㪑㪍㫇㫀㫅㪀㩷㫀㫊㩷㩹㪟㩹㩷㫆㫉㩷㩷㩹㪦㫇㪼㫅㩹㫅㫆㫋㪅

㪦㪢

㩷㪚㪿㪼㪺㫂㩷㫋㪿㪼㩷㫄㪸㫀㫅㩷㪹㫆㪸㫉㪻㩷㫆㪽㩷㪫㪭㩷㫊㪼㫋

㩷㪜㫏㪺㪿㪸㫅㪾㪼㩷㫋㪿㪼㩷㪚㪄㪧㪮㪙

Figure 5-5 Trouble shooting table for Control Board

18480_205_090403.eps

090403

2009-Apr-24

Page 16

EN 16 LCD Sharp 2k96.

Alignments

Trouble Shooting Table For Inverter-PWB (LK558Z3LZ1P)

STEP 1 The possible failure phenomenon would be:-

1. No Back Light

2. Flickering

3. Low Brightness

4. Shut down after 3 seconds from switching ON

STEP2

C .1

3. Junction Cable between Inverters (in case of 2 sides inverters)

STEP3

Check if 1 to 5 pins of 12 pin connector are 24V or not.

STEP4

STEP5 Check if 䋱䋴pin of 䋱䋴pin connector is 䇭䋰V or not

STEP6 Check if 13pin of 14pin connector is more than 3.3V or not.

Exchange the Inverter and go to next stage * If phenomenon #2, 3, or 4 still exist even after exchange of inverter.

㪦㪢

㪊㪅㪊㪭㩷㫆㫉㩷㫄㫆㫉㪼

Figure 5-6 Trouble shooting table for Inverter Board

㪥㪞

ro rotcennoc nip41 ot elba

(the phenomenon should be #1 of "STEP1")

㩷㩷㩷䇭Check the inverter cable or TV set board.

ob niam eht kcehCton ro V3.3 si rotcennoc nip41 fo nip21 fi kcehC

(the phenomenon should be #1 of "STEP1")

㪝㫉㫆㫄㩷㪇㪭㩷㫋㫆㪊㪅㪊㪭

㪇㪭㪔㪈㪊㫇㫀㫅

In case of Phenomenon

#1, 2, or 4, Inverter

should be changed.

No back light / Flickering Low bri

htness / Shut down

yltcerroc rotcennoc eht tresnI retrevnI ot noitcennoc elbac kcehC

elbac eht egnahC rotcennoc nip21 ot elbaC .2

ylppus rewop eht kcehC egatloV kcehC

tes VT fo dra

㪝㫉㫆㫄㩷㪇㪅㪌㪭㩷㫋㫆㩷㪊㪅㪊㪭㪔㪈㪊㫇㫀㫅

In case of Phenomenon #3, it is normal.

18480_206_090403.eps

090424

6. Alignments

Not applicable.

7. Circuit Descriptions

Not applicable

8. IC Data Sheets

Not applicable

9. Block Diagrams

Not applicable.

10. Circuit Diagrams and PWB Layouts

Not applicable

2009-Apr-24