Samsung LE19C45 N82C Schematic

LCD-TV

Chassis : N82C Model :

LE22C45***

SERVICE

LE19C45***

Manual

TFT-LCD TV Contents

1. Precautions

2. Product specications

3. Disassembly and Reassembly

4. Troubleshooting

5. Exploded View & Part List

6. Wiring Diagram

LE19C45***/LE22C45***

Refer to the service manual in the GSPN (see the rear cover) for the more information.

Contents

1. Precautions ..............................................................................................................1-1

1-1. Safety Precautions .........................................................................................................1-1

1-2. Servicing Precautions .....................................................................................................1-2

1-3. Electrostatically Sensitive Devices (ESD) Precautions ..................................................1-2

1-4. Installation Precautions ..................................................................................................1-3

2. Product specications ............................................................................................2-1

2-1. Feature & Specications .................................................................................................2-1

2-2. Specication Comparison to Old Models ........................................................................2-3

2-3. Detail Factory Option ......................................................................................................2-4

2-4. Channel Table .................................................................................................................2-5

2-5. Accessories ....................................................................................................................2-7

3. Disassembly and Reassembly ............................................................................... 3-1

3-1. Disassembly and Reassembly .......................................................................................3-1

4. Troubleshooting ......................................................................................................4-1

4-1. Troubleshooting ..............................................................................................................4-1

4-2. Alignments and Adjustments ........................................................................................4-25

4-3. Factory Mode Adjustments ...........................................................................................4-26

4-4. White Balance - Calibration ..........................................................................................4-34

4-5. White Ratio (Balance) Adjustment ................................................................................4-34

4-6. Servicing Information ....................................................................................................4-35

4-7. How To Upgrade Sub Micom With Ddc Manager .........................................................4-36

4-8. Mechanical diagram .....................................................................................................4-38

4-9. PCB diagram ................................................................................................................4-39

5. Exploded View & Part List ...................................................................................... 5-1

5-1. Exploded View ................................................................................................................5-1

5-2. Parts List .........................................................................................................................5-2

6. Wiring Diagram ........................................................................................................6-1

6-1. Wiring Diagram ...............................................................................................................6-1

6-2. Connector .......................................................................................................................6-2

6-3. Connector Functions ......................................................................................................6-4

6-4. Cables ............................................................................................................................6-4

GSPN (Global Service Partner Network)

Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com CIS http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast & Africa http://mea.samsungportal.com

This Service Manual is a property of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

Printed in Korea P/N: BN82-00929A-00

1. Precautions

1-1. Safety Precautions

Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock.

1-1-1. Warnings

For continued safety, do not attempt to modify the circuit board.1. Disconnect the AC power and DC power jack before servicing.2.

1-1-2. Servicing the LCD TV

When servicing the LCD TV, Disconnect the AC line cord from the AC outlet.3. It is essential that service technicians have an accurate voltage meter available at all times. 4.

Check the calibration of this meter periodically.

1-1-3. Fire and Shock Hazard

Before returning the LCD TV to the user, perform the following safety checks:

Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the 5. chassis and other metal parts in the LCD TV.

Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and 6. compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.

Leakage Current Hot Check (Figure 1-1): 7. WARNING : Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

(READING SHOULD)

NOT BE ABOVE 0.5mA

DEVICE UNDER TEST

2-WIRE CORD

*ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)

TEST ALL EXPOSED METAL SURFACES

LEAKAGE CURRENT TESTER

EARTH GROUND

Figure 1-1. Leakage Current Test Circuit

With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch 8.

rst in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit,

etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the power-plug prongs in the AC outlet and repeat the test.

1-1-4. Product Safety Notices

Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,

wattage, etc. Parts that have special safety characteristics are identied by

replacement that does not have the same safety characteristics as the recommended replacement part might create

shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever

appropriate.

on schematics and parts lists. A substitute

1-1

1-2

1. Precautions

1-2. Servicing Precautions

WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of

this manual.

Note: If unforeseen circumstances create conict between the following servicing precautions and any of the

safety precautions, always follow the safety precautions.

1-2-1 General Servicing Precautions

Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before 1. attempting to: (a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test component in parallel with an electrolytic capacitor.

Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes 2. used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position.

After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that 3. the area around the serviced part has not been damaged.

Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, 4. input terminals and earphone jacks).

Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. 5. Connect an insulation resistance meter (500 V) to theblades of the AC plug. The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be greater than 1 megohm.

Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; 6. always remove the instrument’s ground lead last.

1-3. Electrostatically Sensitive Devices (ESD) Precautions

Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly

called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect

transistors. The following techniques will reduce the incidence of component damage caused by static electricity.

Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your 1. body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard, be sure to remove the wrist strap before applying power to the LCD TV.

After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent 2. accumulation of an electrostatic charge.

Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.3. Use only a grounded-tip soldering iron to solder or desolder ESDs.4.

Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate 5.

electrical charges sufcient to damage ESDs.

Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs 6. are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials.

Immediately before removing the protective material from the leads of a replacement ESD, touch the protective 7. material to the chassis or circuit assembly into which the device will be installed. Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.

Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, 8.

or lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.

1-3

1. Precautions

1-4. Installation Precautions

For safety reasons, more than a people are required for carrying the product.1. Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.2. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal 3.

temperature may cause re.

Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed 4.

to moisture. Otherwise, it may cause a re or electric shock.

Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check 5.

the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric

shock.

Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the 6.

antenna falling over may cause re or electric shock.

When installing the product, leave enough space (0.4m) between the product and the wall for ventilation purposes. 7.

A rise in temperature within the product may cause re.

1. Precautions

Memo

1-4

2. Product specications

2-1. Feature & Specications

2. Product specications

Model

Feature

DIGITAL-TV, RF, 1-HDMI, 1-COMPONENT, 1-A/V, D-SUB, 1-SCART ሪ Brightness : 250 cd/m ሪ High Contrast Ratio : 1,000:1 ሪ Response Time : 5ms ሪ

Item Description

LCD Panel TFT-LCD Panel, RGB Vertical Stripe, Normally white, TN Scanning Frequency Horizontal : 34 kHz ~ 70 kHz (Automatic)

Display Colors Maximum resolution Horizontal : 1366 Pixels

Input Signal Analog 0.7 Vp-p ± 5% positive at 75Ω, internally terminated Input Sync Signal H/V Separate, TTL, P. or N. Maximum Pixel Clock rate 95.6MHz

Specications

Vertical : 50 Hz ~ 76 Hz (Automatic)

16.7M color

Vertical : 768 Pixels

LE19C45***

Active Display Horizontal/Vertical

AC power voltage & Frequency AC 110V ~ 240 @ 50/60 Hz Power Consumption Under 35W (Under 1W, Stand by) Dimensions

Set (W x D x H)

Weight 9.92 lbs (4.5 Kg)_with stand

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

Environmental Considerations Operating Temperature : 50˚F ~ 104˚F (10˚C ~ 40˚C)

Audio Spec. - MAX Internal Audio Output Power : Each 3W(Left/Right)

16.13 x 9.07 inches (409.8(H) x 230.4(V) mm)

18.16 x 7.09 x 13.7 inches (461.3 x 180.2 x 348.0 mm)_with stand

18.16 x 2.33 x 12.16 inches (461.3 x 59.2 x 309.1 mm)_without stand

8.70 lbs (3.95 Kg)_without stand

System PAL/SECAM, DVB-T/C Sound MONO, STEREO, NICAM, MPEG, DD, DD+, HE-AAC

Operating Humidity : 10% ~ 80%, non-condensing Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

Storage Humidity : 5% ~ 95%, non-condensing

- BASS Control Range : -8 dB ~ + 8dB

- TREBLE Control Range : -8 dB ~ +8 dB

- Headphone Out : 10 mW MAX

- Output Frequency : RF : 80 Hz ~ 15 kHz A/V : 80 Hz ~ 20 kHz

Note: Media Play, Game Mode, Energy Saving

2-1

2-2

2. Product specications

Model

LE22C45***

Feature

DIGITAL-TV, RF, 1-HDMI, 1-COMPONENT, 1-A/V, D-SUB, 1-SCART ሪ Brightness : 350 cd/m ሪ

High Contrast Ratio : 800:1 ሪ Response Time : 5ms ሪ

Specications

Item Description

LCD Panel TFT-LCD Panel, RGB Vertical Stripe, Normally white, TN Scanning Frequency Horizontal : 30 kHz ~ 60 kHz (Automatic)

Vertical : 57 Hz ~ 63 Hz (Automatic)

Display Colors

16.7M color

Maximum resolution Horizontal : 1366 Pixels

Vertical : 768 Pixels Input Signal Analog 0.7 Vp-p ± 5% positive at 75Ω, internally terminated Input Sync Signal H/V Separate, TTL, P. or N. Maximum Pixel Clock rate 95.6MHz Active Display

Horizontal/Vertical

16.13 x 9.07 inches (409.8(H) x 230.4(V) mm) AC power voltage & Frequency AC 110V ~ 240 @ 50/60 Hz Power Consumption Under 55W (Under 1W, Stand by) Dimensions

Set (W x D x H)

20.99 x 6.77 x 15.85 inches (533.2 x 171.9 x 402.5 mm)_with stand

20.99 x 2.39 x 13.95 inches (533.2 x 60.8 x 354.4 mm)_without stand Weight 11.99 lbs (5.44 Kg)_with stand

11.02 lbs (5.0 Kg)_without stand TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

System PAL/SECAM, DVB-T/C Sound MONO, STEREO, NICAM, MPEG, DD, DD+, HE-AAC

Environmental Considerations Operating Temperature : 50˚F ~ 104˚F (10˚C ~ 40˚C)

Operating Humidity : 10% ~ 80%, non-condensing Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

Storage Humidity : 5% ~ 95%, non-condensing

Audio Spec. - MAX Internal Audio Output Power : Each 3W(Left/Right)

- BASS Control Range : -8 dB ~ + 8dB

- TREBLE Control Range : -8 dB ~ +8 dB

- Headphone Out : 10 mW MAX

- Output Frequency : RF : 80 Hz ~ 15 kHz

A/V : 80 Hz ~ 20 kHz

Note: Media Play, Game Mode, Energy Saving

2-3

2. Product specications

2-2. Specication Comparison to Old Models

O : application, X : non-application ※

Model LC4E(LE19/22C45***) LB4C(LE19/22B45***)

Design

Display Type LCD TV LCD TV Built-in Tuner O O Resolution 1360 x 768 1360 x 768 LCD Panel TFT LCD Panel 50Hz TFT LCD Panel 50Hz

Screen Size 19"/22" 19"/22" Picture ratio 16 : 9 16 : 9

19 18.16 x 7.09 x 13.7 inches_with stand

19 18.8 x 7.1 x 14.7 inchs_with stand

Dimensions (W x H x D)

22 20.99 x 6.77 x 15.85 inches_with stand 19 9.92 lbs_with stand

22 22.0 x 8.5 x 17.2 inchs_with stand 19 10.58 lbs_with stand

Weight

Brightness

Contrast Ratio

22 11.99 lbs_with stand

19 250 cd/m 22 350 cd/m

2 2

19 1,000:1

22 800:1

22 12.13 lbs_with stand

19 250 cd/m 22 400 cd/m

2 2

19 1,000:1

22 800:1

Picture Enhacer DNIe (SETD-10) DNIe (Saturn4) Equalizer O O Auto Volume Control O O

Surround Sound Virtural Surround SRS TruSurround HD Speaker Output 3W 3W Energy Saving O O Antenna 1(Cable/Air) 1(Cable/Air)

2-4

2. Product specications

2-3. Detail Factory Option

If you replace the main board with new one, please change the factory option as well. ※ The options you must change are “Type”.

Model Name LE19C45*** LE19C45*** LE19C45*** LE22C45*** LE22C45***

Vendor INNOL CPT AML CPT AML

Panel

SMPS Vendor FSP FSP SEMCO AMBIT AMBIT

Byte Item

1 Factory Reset - -

19D6THOC/19I6THOC/22D6THOC/ 22L6THOC/22I6THOC/26D6THOC/

26L6AHOC/32A6AHOC/32L6AHOC/

2 Type

3 Local set

4 Model LC350/LC450/LC530/LC550/LC650 LC450 LC450 LC450 LC450 LC450

5 TUNER

6 DDR 0/1/2 0 0 0 0 0 7 Light Effect On/Off Off Off Off Off Off

8 Ch Table

9 Country - - - - - 10 PDP GROUP P43A_42Sn **** **** **** **** **** 11 Front Color

32D6AHOC/37L6AHOC/37I6AHOC/

40L6AHOC/32A6AFOC/32L6AFOC/ 32D6AFOC/37L6AFOC/37D6AFOC/ 40A6AFOC/40L6AFOC/40D6AFOC/ 46A6AFOC/46L6AFOC/46D6AFOC/

EU/EU_ITALY/EU_AFRICA/EU_LSRAEL

DRXKXEMCO/S2SEMCO/T2CXD/

DRXKAALPS/DRXKSEM_2

SUWON/SESK/SHE/TTSEC/SDMA/

SERK/SEIN/SAVINA/SIEL/TSE/

CODE BN07-00766A BN07-00623A BN07-00703A BN07-00731A BN07-00757A SPEC MT185GW01 V2 CLAA185WA03 LTM185AT01-V CLAA216WA01 LTF216AT01

CODE BN44-00328B BN44-00328B BN44-00328A BN44-00370A BN44-00370A SPEC FSP035-2PI10 FSP035-2PI10 PSIV350310A PSIV680510A PSIV680510A

Adjustment Range EUROPE

1906THOC 19I6THOC 19A6TH0C 22I6THOC 22A6TH0C

52A6AFOC/52L6AFOC/

/NORDIG/AD_Au/CIS

DRXKSEM_E

EU EU EU EU EU

DRXKXEMCO DRXKXEMCO DRXKXEMCO DRXKXEMCO DRXKXEMCO

2-5

2. Product specications

2-4. Channel Table

Channel UK France Germany Italy Spain Sweden Finland

VHF

[A] 56

[B] 64.5

[C] 84.5

[D] 177.5

[5] 178.75 [5] 177.5 [E] 186 [5] 177.5 [5] 177.5

[6] 186.75 [6] 184.5 [F] 194.5 [6] 184.5 [6] 184.5

[7] 194.75 [7] 191.5 [G] 203.5 [7] 191.5 [7] 191.5

[8] 202.75 [8] 198.5 [H] 212.5 [8] 198.5 [8] 198.5

[9] 210.75 [9] 205.5 [H1] 219.5 [9] 205.5 [9] 205.5

[10] 218.75

[10] 212.5 [H2] 226.5 [10] 212.5

[10] 212.5

[11] 219.5 [11] 219.5

[11] 219.5

[12] 226.5 [12] 226.5

[12] 226.5

UHF

21 474 474 474 474 474 474 474 22 482 482 482 482 482 482 482 23 490 490 490 490 490 490 490 24 498 498 498 498 498 498 498 25 506 506 506 506 506 506 506 26 514 514 514 514 514 514 514 27 522 522 522 522 522 522 522 28 530 530 530 530 530 530 530 29 538 538 538 538 538 538 538 30 546 546 546 546 546 546 546 31 554 554 554 554 554 554 554 32 562 562 562 562 562 562 562 33 570 570 570 570 570 570 570 34 578 578 578 578 578 578 578 35 586 586 586 586 586 586 586 36 594 594 594 594 594 594 594 37 602 602 602 602 602 602 602 38 610 6

10 610 610 610 610 610 39 618 618 618 618 618 618 618 40 626 626 626 626 626 626 626 41 634 634 634 634 634 634 634 42 642 642 642 642 642 642 642 43 650 650 650 650 650 650 650 44 658 658 658 658 658 658 658 45 666 666 666 666 666 666 666 46 674 674 674 674 674 674 674 47 682 682 682 682 682 682 682 48 690 690 690 690 690 690 690 49 698 698 698 698 698 698 698 50 706 706 706 706 706 706 706 51 714 714 714 714 714 714 714 52 722 722 722 722 722 722 722 53 730 730 730 730 730 730 730 54 738 738 738 738 738 738 738 55 746 746 746 746 7

46 746 746 56 754 754 754 754 754 754 754 57 762 762 762 762 762 762 762 58 770 770 770 770 770 770 770 59 778 778 778 778 778 778 778 60 786 786 786 786 786 786 786 61 794 794 794 794 794 794 794 62 802 802 802 802 802 802 802 63 810 810 810 810 810 810 810 64 818 818 818 818 818 818 818 65 826 826 826 826 826 826 826 66 834 834 834 834 834 834 834 67 842 842 842 842 842 842 842 68 850 850 850 850 850 850 850 69 858 858 858 858 858 858

Australia Netherlands China Hongkong Taiwan

[0] 48.5 [1]52.5

[1] 59.5

[2]60.5

[2] 66.5

[3]68.5

[3] 88.5

[4]80

[4] 97.5 [5] 174.5

[5]88

[5] 104.5 [6] 181.5

[6]171

[5A] 140.5 [7] 188.5

[7]179

[6] 177.5 [8] 195.5

[8]187

[7] 184.5 [9] 202.5

[9]195

[8] 191.5 [10] 209.5

[10]203

[9] 198.5 [11] 216.5

[11]211

[9A] 205.5 [12] 223.5

[12]219

[10] 212.5

[11] 219.5

[12] 226.5

474 [13]474 [21]474 [14]473 482 [14]482 [22]482 [15]479

490 [15]490 [23]490 [16]485 498 [16]498 [24]498 [17]491 506 [17]506 [25]506 [18]497 514 [18]514 [26]514 [19]503

520~526, 6MHz

522 [19]522 [27]522 [20]509

529.5 530 [20]530 [28]530 [21]515

536.5 538 [21]538 [29]538 [22]521

543.5 546 [22]546 [30]546 [23]527

550.5 554 [23]554 [31]554 [24]533

557.5 562 [24]562 [32]562 [25]539

564.5 570 [25]610 [33]570 [26]545

571.5 578 [26]618 [34]578 [27]551

578.5 586 [27]626 [35]586 [28]557

585.5 594 [28]634 [36]594 [29]563

592.5 602 [29]642 [37]602 [30]569

599.5 610 [30]650 [38]610 [31]575

606.5 618 [31]658 [39]618 [32]581

613.5 626 [32]666 [40]626 [33]58

620.5 634 [33]674 [41]634 [34]593

627.5 642 [34]682 [42]642 [35]599

634.5 650 [35]690 [43]650 [36]605

641.5 658 [36]698 [44]658 [37]611

648.5 666 [37]706 [45]666 [38]617

655.5 674 [38]714 [46]674 [39]623

662.5 682 [39]722 [47]682 [40]629

669.5 690 [40]730 [48]690 [41]635

676.5 698 [41]738 [49]698 [42]641

683.5 706 [42]746 [50]706 [43]647

690.5 714 [43]754 [51]714 [44]653

697.5 722 [44]762 [52]722 [45]659

704.5 730 [45]770 [53]730 [46]665

711.5 738 [46]778 [54]738

[47]671

718.5 746 [47]786 [55]746 [48]677

725.5 754 [48]794 [56]754 [49]683

732.5 762 [49]802 [57]762 [50]689

739.5 770 [50]810 [58]770 [51]695

746.5 778 [51]818 [59]778 [52]701

753.5 786 [52]826 [60]786 [53]707

760.5 794 [53]834 [61]794 [54]713

767.5 802 [54]842 [62]802 [55]719

774.5 810 [55]850 [63]810 [56]725

781.5 818 [56]858 [64]818 [57]731

788.5 826 [57]866 [65]826 [58]737

795.5 834 [58]874 [66]834 [59]743

802.5 842 [59]882 [67]842 [60]749

809.5 850 [60]890 [

68]850 [61]755

816.5 858 [61]898 [69]858 [62]761 [62]906 [63]767 [63]914 [64]773

[65]779 [66]785 [67]791 [68]797 [69]803

Frequency (DTV) 

2-6

2. Product specications

NEWZEAL CHINA

(PAL D/K)

1 69-855.25 49.25

69-855.25

176.00 69-855.25 45.25 49.25 2 48.25 E2-48.25 59.25 184.00 FA-47.75 55.25 57.25 3 55.25 E3-55.25 77.25 192.00 FB-55.75 62.25 65.25 4 62.25 E4-62.25 85.25 200.00

FC1-60.50

175.25 77.25 5 175.25 X -69.25 93.25 208.00 FC-53.75 182.25 85.25 6 182.25 Y -76.25 175.25 216.00 B-116.75 189.25 168.25 7 189.25 Z -83.25 183.25 C-128.25 196.25 176.25 8 196.25 Z1-90.25 191.25 D-140.75 203.25 184.25 9 203.25 Z2-97.25 199.25 E-152.75 210.25 192.25

10 210.25 S1-105.25 207.25 F-164.75 217.25 200.25 11 217.25 S2-112.25 215.25 F1-176.00 224.25 208.25 12 224.25 S3-119.25 223.25 G -176.75 216.25 13 S4-126.25 F2-184.00 471.25 14 S5-133.25 H -188.75 479

.25

15 S6-140.25 F

3-192.00 487.25 16 S7-147.25 F4-200.00 495.25 17 S8-154.25 I -200.75 503.25 18 S9-161.25 F5-208.00 511.25 19 S10-168.25 J -212.75 519.25 20 E5-175.25 F6-216.00 527.25 21 471.25 E6-182.25 471.25 471.25 K -224.75 535.25 22 479.25 E7-189.25 479.25 479.25 L -236.75 543.25 23 487.25 E8-196.25 487.25 487.25 M -248.75 551.25 24 495.25 E9-203.25 495.25 495.25 N -260.75 559.25 25 503.25

E10-210.25

503.25 503.25 O -272.75 607.25

26 511.25

E11-217.25

511.25 511.25 P -284.75 615.25

27 519.25

E12-224.25

519.25 519.25 Q -296.75 623.25

28 527.25

S11-231.25

527.25 527.25 631.25

29 535.25

S12-238.25

535.25 535.25 639.25

30 543.25

S13-245.25

543.25 543.25 647.25

31 551.25

S14-252.25

551.25 551.25 655.25

32 559.25

S15-259.25

559.25 559.25 663.25

33 567.25

S16-266.25

567.25 567.25 671.25

34 575.25

S17-273.25

575.25 575.25 679.25

35 583.25

S18-280.25

583.25 583.25 687.25

36 591.25

S19-287.25

591.25 591.25 695.25

37 599.25

S20-294.25

599.25 599.25 703.25

38 607.25

S21-303.25

607.25 607.25 711.25

39 615.25

S22-311.25

615.25 615.25 719.25

40 623.25

S23-319.25

623.25 623.25 727.25

41 631.25

S24-327.25

631.25 631.25 735.25

42 639.25

S25-335.25

639.25 639.25 743.25

43 647.25

S26-343.25

647.25 647.25 751.25

44 655.25

S27-351.25

655.25 655.25 759.25

45 663.25

S28-359.25

663.25 663.25 767.25

46 671.25

S29-367.25

671.25 671.25 775.25

47 679.25

S30-375.25

679.25 679.25 783.25

48 687.25

S31-383.25

687.25 687.25 791.25

49 695.25

S32-391.25

695.25 695.25 799.25

50 703.25

S33-399.25

703.25 703.25 807.25

51 711.25

S34-407.25

711.25 711.25 815.25

52 719.25

S35-415.25

719.25 719.25 823.25

53 727.25

S36-423.25

727.25 727.25 831.25

54 735.25

S37-431.25

735.25 735.25 839.25

55 743.25

S38-439.25

743.25 743.25 847.25

56 751.25

S39-447.25

751.25 751.25 855.25

57 759.25

S40-455.25

759.25 759.25 863.25

58 767.25

S41-463.25

767.25 767.25 871.25 59 775.25 775.25 775.25 879.25 60 783.25 783.25 783.25 887.25 61 791.25 791.25 791.25 895.25 62 799.25 799.25 799.25 903.25 63 807.25 807.25 807.25 911.25 64 815.25 815.25 815.25 919.25 65 823.25 823.25 823.25 927.25 66 831.25 831.25 831.25 935.25 67 839.25 839.25 839.25 943.25 68 847.25 847.25 847.25 951.25

FRANCE

(SECAM-L)

CCIR

(PAL B/G)

OIRT

(SECAM D/K)

Frequency (ATV) 

2-7

2. Product specications

2-5. Accessories

Product Description Code. No Remark

Remote Control & Batteries

(AAA x 2)

Power Cord 3903-000456

Stand

Screw

(for the stand - M4)

Owner’s Instructions BN68-02591A

Cleaning Cloth BN-63-01798B

BN59-01012A

22": BN96-12739B

(BN90-02433B)

6002-001294

(22" Only)

Samsung Electronics

Service center

Warranty Card / Registration

Card / Safety Guide Manual

(Not available in all locations)

BRACKET-WALL BN61-01162A

Anchors & screws for wall BN96-01272A

Installation Guide for wall BN68-00850G

3. Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the LE19/22C450 LCD TV.

WARNING: This LCD TV contains electrostatically sensitive devices. Use caution when handling these components.

3-1. Disassembly and Reassembly

Cautions: 1. Disconnect the LCD TV from the power source before disassembly.

2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.

Description Picture Description Screws

1. Place the TV face down on cushioned table. Remove screws from the stand and back.

19 inch : 6 screws 22 inch : 8 screws

2. Lift up the rear cover.

19 inch

6002-001294

(M4 x L16, Tapping)

22 inch

19 inch

22 inch

3-1

3-2

3. Disassembly and Reassembly

Description Picture Description Screws

3. Remove screws and disconnect conectors.

19 inch : 6 screws 22 inch : 8 screws

4. Lift up the bracket and remove it.

19 inch

22 inch

19 inch

6003-000269

(M3 x L6, TAPTYPE)

6003-001439

(M4 x L8, TAPTYPE)

6002-001294

(M4 x L16, Tapping)

22 inch

3-3

3. Disassembly and Reassembly

Description Picture Description Screws

5. Lift up the panel.

Reassembly procedures are in the reverse order of disassembly procedures. ※

19 inch

22 inch

Screw Size

Code No. A (mm) B (mm) C (mm) Q’ty

6002-001294 8.3±0.5 16±0.8 3.85~4.0 -

6003-000275 5.80~6.30 9.2~10.0 2.85~2.95 -

6003-001439 8.3±0.4 8.0±0.4 3.85~3.93 1(ALL)

4. Troubleshooting

4-1. Troubleshooting

4-1-1. Previous check

Check the various cable connections rst. 1.

• Check to see if there is a burnt or damaged cable.

• Check to see if there is a disconnected or loose cable connection.

• Check to see if the cables are connected according to the connection diagram.

Check the power input to the Main Board.2.

4. Troubleshooting

4-1

4-2

4. Troubleshooting

4-1-2. No Power

Symptom

The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are

Major

checkpoints

improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:

The LEDs on the front panel do not work when connecting the power cord. The SMPS relay does not work when connecting the power cord. The units appears to be dead. -

Check the internal cable connection status inside the unit. Check the fuses of each part. - Check the output voltage of SMPS. - Replace the Main Board. -

Diagnostics

Lamp(Backlight) Off,

power indicator LED on?

Yes

Does proper Stand-by

DC A5V_PW(A5V_1) and

A13V_PW(A13V1) appear?

Yes

Does proper Main B13V_PW(B13V1),

B5V_PW(B5V1) appear?

Yes

Does proper DC A3.3V(A3.3V1)

appear?

Yes

Does proper B3.3V_PW(B3.3V1),

B1.8V_PW(B1.8V1) appear?

Yes

Does proper PANEL_5V

appear at LVDS connector

Pin#1~5 of T-con B’D?

Yes

Change the power cable or IP board.

Change the IP Board.

Change the Main Board.

Change the LVDS cable.

Caution

A power is supplied to set?

Make sure to disconnect the power before working on the IP board.

Check a other function.

(No picture part)

Replace a LCD Panel.

4-3

4. Troubleshooting

Power CN2001

Pin 1 2 3 4 5 6 7 8 9

Dimming out A13V GND GND GND A5V A5V NC Panel Setting

4-4

4. Troubleshooting

4-1-3. No Video (Analog PC signal)

Symptom Audio is normal but no picture is displayed on the screen. -

Major

checkpoints

Check the PC source -

Check the Arsenal, Check the Chelsea. This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. -

Power indicator LED is off.

Lamp(Backlight) on, no video

Yes

Check the PC source and

check the connection of D-SUB

Yes

Check a set

in the ‘Stand-by mode’ or

‘DPMS mode’

Input the analog

PC signal properly.

Diagnostics

Does the signal appear at

TP - PC_R, PC_G, PC_B, PC_HS,

PC_VS (R, G, B, H, V)?

Yes

Does the digital data appear at

ODD_TXCLK+(D3+),

ODD_TXCLK-(D3-)?

Yes

Check the LVDS cable?

Check the T-Con B’d?

Replace the LCD panel?

Check CN902, PC cable.

Change the Main Assy.

Check IC1102(SETD-10).

Change the main Assy.

Please, Contact Tech support.

Caution Make sure to disconnect the power before working on the IP board.

+ 48 hidden pages