Samsung LN19A330J1D Schematic

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Page 1

LCD-TV

Chassis : N45C Model : LN19A330J1D

Manual

SERVICE

TFT-LCD TV Contents

1. Precautions

2. Product specications Disassembly and Reassembly

3. Troubleshooting

4. Exploded View & Part List

5. Wiring Diagram

6. Schematic Diagram

LN19A330J1D

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

Page 2

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

2-3. Spec Comparison to the Old Models ..............................................................................2-4

2-4. Accessories ....................................................................................................................2-5

3. Disassembly and Reassemble ............................................................................... 3-1

3-1. Disassembly ...................................................................................................................3-1

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

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

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

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

4-4. White Balance - Calibration ..........................................................................................4-28

4-5. White Ratio (Balance) Adjustment ................................................................................4-30

4-6. Servicing Information ....................................................................................................4-31

.....4-19

.......4-20

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

5-1. LN19A330J1D Exploded View ........................................................................................5-1

5-3. LN19A330J1D Parts List ................................................................................................5-3

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

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

6-2. Cables ............................................................................................................................6-3

7. Schematic Diagram ................................................................................................. 7-1

7-1. MSD2248AL Block Diagram ...........................................................................................7-1

7-2. Slim Half Tuner Block Diagram .......................................................................................7-2

7-3. Internal Block Diagram of Scaler(MSD2248AL) .............................................................7-3

7-2. Schematic Diagrams ......................................................................................................7-4

Page 3

GSPN (Global Service Partner Network)

Area Web Site

North America http://service.samsungportal.com

America http://latin.samsungportal.com

Latin CIS http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast

This

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

& Africa http://mea.samsungportal.com

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

Printed in Korea P/N: BN82-00364A-00

Page 4

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.

1-1-2. Servicing the LCD TV

When servicing the LCD TV, Disconnect the AC line cord from the AC outlet.

1. It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of

2. 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

1. chassis and other metal parts in the LCD TV.

Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and

2. compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.

Leakage Current Hot Check (Figure 1-1):

3. 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

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

*ALSO TEST WITH

PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)

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

LEAKAGE CURRENT TESTER

EARTH

GROUND

Figure 1-1. Leakage Current Test Circuit

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 on schematics and parts lists. A substitute 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.

1-1

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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.

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

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,

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

Page 6

1. Precautions

1-4. Installation Precautions

For safety reasons, more than two people are required for carrying the product.

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

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

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

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

antenna falling over may cause re or electric shock.

When installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes.

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

1-3

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1. Precautions

Memo

1-4

Page 8

2. Product specications

2-1. Feature & Specications

Model LN19A330J1D

Feature

Digital-TV, RF, 1-HDMI, 1-Component, 1-A/V, 1-S-Video, D-SUB

�

Brightness : 300cd/m

�

Contrast Ratio : 1000:1

�

Response time : 5ms

�

Item Description

Specications

2. Product specications

LCD Panel TFT-LCD panel, RGB vertical stripe, TN mode, Normally white, 19-inch viewable,

Scanning Frequency Horizontal : 30 kHz ~ 80 kHz (Automatic)

Display Colors 16.7 million colors

Maximum resolution Horizontal : 1440 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 310MHz

Active Display Horizontal/Vertical 16.07 x 10.05 inches(408.24(H) x 255.15(V)mm)

AC power voltage & Frequency AC 110V ~ 220V, 60 Hz

Power Consumption <245 W ( < 1W, stand by )

Dimensions

Set (W x D x H)

Weight (Set) 11.24 lbs (5.1kg)

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

0.2835(H) x 0.2835(W) x 3mm pixel pitch

Vertical : 56 Hz ~ 75 Hz (Automatic)

Vertical : 900 Pixels

18.78 x 7.09 x 15.24 inches (477.1 x 180.2 x 387 mm)_with stand

18.78 x 2.26 x 13.63 inches (477.1 x 57.5 x 346.1 mm)_without stand

System ATSC, NTSC5.38

Sound NTSC-M, AC-3 Digital

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

Environmental Considerations - MAX Internal speaker Out : Right => 10W, Left => 10W

- 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: Anynet+

2-1

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2. Product specications

OSD CH NO AIR CH NO CH NO CH NO

Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC 1 1 A-8 72. 00 A-8 73. 25 2 2 57 55. 25 V-L 2 55. 25 V-L 2 54. 00 2 55. 25 3 3 63 61.25 V-L 3 61.25 V-L 3 60.00 3 61.25 4 4 69 67.25 V-L 4 67.25 V-L 4 66.00 4 67.25 5 5 79 77. 25 V-L 5 77. 25 V-L A-7 78. 00 A-7 79. 25 6 6 85 83.25 V-L 6 83.25 V-L A-6 84.00 A-6 85.25 7 7 177 175. 25 V-H 7 175. 25 V-H 7 174. 00 7 175. 25 8 8 183 181.25 V-H 8 181.25 V-H 8 180.00 8 181.25 9 9 189 187.25 V-H 9 187.25 V-H 9 186.00 9 187.25

10 10 195 193.25 V-H 10 193.25 V-H 10 192.00 10 193.25 11 11 201 199.25 V-H 11 199.25 V-H 11 198.00 11 199.25 12 12 207 205.25 V-H 12 205.25 V-H 12 204.00 12 205.25 13 13 213 211.25 V-H 13 211.25 V-H 13 210.00 13 211.25 14 14 473 471. 25 UHF A 121. 25 MID A 120. 00 A 121. 25 15 15 479 477.25 UHF B 127.25 MID B 126.00 B 127.25 16 16 485 483.25 UHF C 133.25 MID C 132.00 C 133.25 17 17 491 489.25 UHF D 139.25 MID D 138.00 D 139.25 18 18 497 495.25 UHF E 145.25 MID E 144.00 E 145.25 19 19 503 501.25 UHF F 151.25 MID F 150.00 F 151.25 20 20 509 507.25 UHF G 157.25 MID G 156.00 G 157.25 21 21 515 513.25 UHF H 163.25 MID H 162.00 H 163.25 22 22 521 519.25 UHF I 169.25 MID I 168.00 I 169.25 23 23 527 525.25 UHF J 217. 25 SUPER J 216. 00 J 217. 25 24 24 533 531.25 UHF K 223.25 SUPER K 222.00 K 223.25 25 25 539 537.25 UHF L 229.25 SUPER L 228.00 L 229.25 26 26 545 543.25 UHF M 235.25 SUPER M 234.00 M 235.25 27 27 551 549.25 UHF N 241.25 SUPER N 240.00 N 241.25 28 28 557 555.25 UHF O 247.25 SUPER O 246.00 O 247.25 29 29 563 561.25 UHF P 253.25 SUPER P 252.00 P 253.25 30 30 569 567.25 UHF Q 259.25 SUPER Q 258.00 Q 259.25 31 31 575 573.25 UHF R 265.25 SUPER R 264.00 R 265.25 32 32 581 579.25 UHF S 271.25 SUPER S 270.00 S 271.25 33 33 587 585.25 UHF T 277.25 SUPER T 276.00 T 277.25 34 34 593 591.25 UHF U 283.25 SUPER U 282.00 U 283.25 35 35 599 597.25 UHF V 289.25 SUPER V 288.00 V 289.25 36 36 605 603.25 UHF W 295.25 SUPER W 294.00 W 295.25 37 37 611 609.25 UHF AA 301.25 HYPER AA 300.00 AA 301.25 38 38 617 615.25 UHF BB 307.25 HYPER BB 306.00 BB 307.25 39 39 623 621.25 UHF CC 313.25 HYPER CC 312.00 CC 313.25 40 40 629 627.25 UHF DD 319.25 HYPER DD 318.00 DD 319.25 41 41 635 633.25 UHF EE 325.25 HYPER EE 324.00 EE 325.25 42 42 641 639.25 UHF FF 331.25 HYPER FF 330.00 FF 331.25 43 43 647 645.25 UHF GG 337.25 HYPER GG 336.00 GG 337.25 44 44 653 651.25 UHF HH 343.25 HYPER HH 342.00 HH 343.25 45 45 659 657.25 UHF II 349.25 HYPER II 348.00 II 349.25 46 46 665 663.25 UHF JJ 355.25 HYPER JJ 354.00 JJ 355.25 47 47 671 669.25 UHF KK 361.25 HYPER KK 360.00 KK 361.25 48 48 677 675.25 UHF LL 367.25 HYPER LL 366.00 LL 367.25 49 49 683 681.25 UHF MM 373.25 HYPER MM 372.00 MM 373.25 50 50 689 687.25 UHF NN 379.25 HYPER NN 378.00 NN 379.25 51 51 695 693.25 UHF OO 385.25 HYPER OO 384.00 OO 385.25 52 52 701 699.25 UHF PP 391.25 HYPER PP 390.00 PP 391.25 53 53 707 705.25 UHF QQ 397.25 HYPER QQ 396.00 QQ 397.25 54 54 713 711.25 UHF RR 403.25 HYPER RR 402.00 RR 403.25 55 55 719 717.25 UHF SS 409.25 HYPER SS 408.00 SS 409.25 56 56 725 723.25 UHF TT 415.25 HYPER TT 414.00 TT 415.25 57 57 731 729.25 UHF UU 421.25 HYPER UU 420.00 UU 421.25 58 58 737 735.25 UHF VV 427.25 HYPER VV 426.00 VV 427.25 59 59 743 741.25 UHF WW 433.25 HYPER WW 432.00 WW 433.25 60 60 749 747.25 UHF XX 439.25 HYPER XX 438.00 XX 439.25 61 61 755 753.25 UHF YY 445.25 HYPER YY 444.00 YY 445.25 62 62 761 759.25 UHF ZZ 451.25 HYPER ZZ 450.00 ZZ 451.25 63 63 767 765.25 UHF AAA 457.25 HYPER AAA 456.00 AAA 457.25 64 64 773 771.25 UHF BBB 463.25 HYPER BBB 462.00 BBB 463.25 65 65 779 777.25 UHF CCC 469.25 ULTRA CCC 468.00 CCC 469.25 66 66 785 783.25 UHF DDD 475.25 ULTRA DDD 474.00 DDD 475.25 67 67 791 789.25 UHF EEE 481.25 ULTRA EEE 480.00 EEE 481.25 68 68 797 795.25 UHF FFF 487.25 ULTRA FFF 486.00 FFF 487.25 69 69 803 801.25 UHF GGG 493.25 ULTRA GGG 492.00 GGG 493.25

CHANNEL FREQUENCY TABLE

OUTPUT FREQUENCY : ANALOG fv:45.75MHz, fs:41.25MHz DIGITAL Fc:44MHz

TUNING STEP SIZE : FIRST PLL 250KHz SECOND PLL 62.5KHz

2-2

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2. Product specications

OSD CH NO AIR CH NO CH NO CH NO

Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC

70 70 HHH 499.25 ULTRA HHH 498.00 HHH 499.25 71 71 III 505.25 ULTRA III 504.00 III 505.25 72 72 JJJ 511.25 ULTRA JJJ 510.00 JJJ 511.25 73 73 KKK 517.25 ULTRA KKK 516.00 KKK 517.25 74 74 LLL 523.25 ULTRA LLL 522.00 LLL 523.25 75 75 MMM 529.25 ULTRA MMM 528.00 MMM 529.25 76 76 NNN 535.25 ULTRA NNN 534.00 NNN 535.25 77 77 OOO 541.25 ULTRA OOO 540.00 OOO 541.25 78 78 PPP 547.25 ULTRA PPP 546.00 PPP 547.25 79 79 79 553.25 ULTRA 79 552.00 79 553.25 80 80 80 559.25 ULTRA 80 558.00 80 559.25 81 81 81 565.25 ULTRA 81 564.00 81 565.25 82 82 82 571.25 ULTRA 82 570.00 82 571.25 83 83 83 577.25 ULTRA 83 576.00 83 577.25 84 84 84 583.25 ULTRA 84 582.00 84 583.25 85 85 85 589.25 ULTRA 85 588.00 85 589.25 86 86 86 595.25 ULTRA 86 594.00 86 595.25 87 87 87 601.25 ULTRA 87 600.00 87 601.25 88 88 88 607.25 ULTRA 88 606.00 88 607.25 89 89 89 613.25 ULTRA 89 612.00 89 613.25 90 90 90 619.25 ULTRA 90 618.00 90 619.25 91 91 91 625.25 ULTRA 91 624.00 91 625.25 92 92 92 631.25 ULTRA 92 630.00 92 631.25 93 93 93 637.25 ULTRA 93 636.00 93 637.25 94 94 94 643.25 ULTRA 94 642.00 94 643.25 95 95 A-5 91. 25 FM A-5 90. 00 A-5 91. 25 96 96 A-4 97.25 FM A-4 96.00 A-4 97.25 97 97 A-3 103.25 FM A-3 102.00 A-3 103.25 98 98 A-2 109.25 MID A-2 108.00 A-2 109.25

99 99 A-1 115.25 MID A-1 114.00 A-1 115.25 100 100 100 649. 25 ULTRA 100 648. 00 100 649. 25 101 101 101 655.25 ULTRA 101 654.00 101 655.25 102 102 102 661.25 ULTRA 102 660.00 102 661.25 103 103 103 667.25 ULTRA 103 666.00 103 667.25 104 104 104 673.25 ULTRA 104 672.00 104 673.25 105 105 105 679.25 ULTRA 105 678.00 105 679.25 106 106 106 685.25 ULTRA 106 684.00 106 685.25 107 107 107 691.25 ULTRA 107 690.00 107 691.25 108 108 108 697.25 ULTRA 108 696.00 108 697.25 109 109 109 703.25 ULTRA 109 702.00 109 703.25 110 110 110 709.25 ULTRA 110 708.00 110 709.25 111 111 111 715.25 ULTRA 111 714.00 111 715.25 112 112 112 721.25 ULTRA 112 720.00 112 721.25 113 113 113 727.25 ULTRA 113 726.00 113 727.25 114 114 114 733.25 ULTRA 114 732.00 114 733.25 115 115 115 739.25 ULTRA 115 738.00 115 739.25 116 116 116 745.25 ULTRA 116 744.00 116 745.25

. .

. . .

. . . .

. .

. . .

. . . .

125 125 125 799.25 ULTRA 125 798.00 125 799.25

. . . . . . . . .

2-3

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2. Product specications

2-3. Spec Comparison to the Old Models

Model LN**A450C1D(19”/22”/26”/32”/37”/40”) LNT**42H (23”/26”/32”/40”/46”)

Design

Display Type LCD TV LCD TV

Built-in Tuner O O

19”=>1440 x 900

Resolution

LCD Panel TFT LCD Panel 60Hz TFT LCD Panel 60Hz

Screen Size 19”/22”/26”/32”/37”/40” 23” / 26” / 32” / 40” / 46”

Picture ratio 16 : 9 16 : 9

18.78 x 7.09 x 15.24 inches_with stand

Dimensions (W x H x D)

31.48 x 11.81 x 25.91 inches_with stand

36.08 x 11.81 x 25.91 inches_with stand

38.97 x 11.81 x 27.33 inches_with stand

22”=>1680 x 1050

26”/32”/37”/40”=>1366x768

21.96 x 8.5 x 17.83 inches_with stand

26.37 x 8.5 x 19.7 inches_with stand

1366 x 768

26.29 x 9.13 x 17.53 inches_with stand

29.28 x 9.15 x 19.94 inches_with stand

34.42 x 11.47 x 22.72 inches_with stand

42.67 x 11.81 x 27.17 inches_with stand

48.04 x 12.83 x 30.55 inches_with stand

Weight

Brightness 500nit (19”=>300nit) 500 nit

Contrast Ratio 8000:1 (19”=>1000:1) 8000:1

Picture Enhacer DNIe(FBE3) DNIe (FBE2)

Equalizer 5 band 5 band

Auto Motion Plus 120Hz Not available Not available

Surround Sound 2 Way SRS TruSurround Dolby Digital 2 Way SRS TruSurround Dolby Digital

Speaker Output 5W x 2 5W x 2

Antenna 1 (Cable/Air) 2 (Cable/Air)

11.24 lbs(set)

16.09 lbs(set)

21.38 lbs(set)

28.88 lbs(set)

40.34 lbs(set) 41 lbs(set)

24.25 lbs (set)

31.97 lbs (set)

41.89 lbs (set)

60.63 lbs (set)

80.91 lbs (set)

2-4

Page 12

2-4. Accessories

Product Description Code. No Remark

2. Product specications

Remote Control & Batteries

(AAA x 2)

Power Cord 3903-000144

Cover-Bottom BN63-04243A

Owner’s Instructions BN63-01395B

Cleaning Cloth BN63-01798A

Warranty Card / Registration

Card / Safety Guide Manual

(Not available in all locations)

BN59-00599A

6801-001011

Samsung Electronics

Service center

2-5

Page 13

4. Troubleshooting

Power Board

Main Board

Panel

4-1. Troubleshooting

Check the various cable connections rst.

• 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.

4. Troubleshooting

4-1

Page 14

4. Troubleshooting

4-1-1. No Power

Symptom

Major

checkpoints

The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are 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 appear at C223?

Yes

Does proper Main DC B10V_S, B5V,

B13V appear at BD221, C273C C278?

Yes

Does proper Inverter DC 120V appear

at CN101 in SMPS?

Yes

Does proper DC A3.3V appear at D206?

Yes

Does proper DC B3.3V appear at

R203?

Yes

Does proper A1.2V appear at C208?

Check a connection power cable.

P/N : BP39-00028A

Change the Main Power assembly

19” => BN44-00152B 22” => BN44-00152A

Check IC203 Change the Main Ass`y

19” : BN94-01638A 22” : BN94-01638B

Check IC203

Change the Main Ass`y

19” : BN94-01638A 22” : BN94-01638B

Check IC402

Change the Main Ass`y

19” : BN94-01638A 22” : BN94-01638B

4-2

Caution

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

Page 15

4-1-2. 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 MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Diagnostics

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Check the PC source and

check the connection of DSUB?

Yes

Does the signal appear at

#w1, #u1, #AB2, #F1, #G1

(R, G, B, H, V) of IC402?

Yes

Does the digital data appear at output of

R452, R453, R402, R403, R404?

Yes

Does the digital data appear at output

of C609 and C610?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input an analog PC signal.

Check the connected cable.

Check IC601, PC cable.

Change the PC cable. Change the main

PCB assembly

Check IC402 Change the main PCB

assembly

Check IC402

Change the main PCB assembly

Please, Contact Tech support

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

4-3

Page 16

4. Troubleshooting

WAVEFORMS

1 2

PC Input (V-Sync, H-Sync)

LVDS Out (CLK + / -)

4-4

Page 17

4-1-3. No Video (HDMI - Digital Signal)

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

Major

checkpoints

Check the HDMI source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Diagnostics

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

Check the HDMI source and check

the connection of HDMI cable?

Yes

Does the digital data appear at output of

R659, R660(CLK+/-),

R661~R666(DATA)?

Yes

R452, R453, R402, R403, R404?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input an HDMI signal.

Check the connected cable.

Check U601, HDMI cable.

Change the HDMI cable. Change

the main PCB assembly

Check IC4001

Change the main PCB assembly

Please, Contact Tech support

4-5

Page 18

4. Troubleshooting

WAVEFORMS

4 5

HDMI Input (CLK + / -)

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

4-6

Page 19

4-1-4. No Video (Tuner_CVBS)

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

Major

checkpoints

Check the Tuner CVBS source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Diagnostics

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

Check the RF source and

check the connection of RF cable?

Yes

Does the signal appear at TU501?

Yes

Does the digital data appear at output

of C503, C504, R452, R453, R402,

R403, R404?

Yes

Check the LVDS cable?

Replace the LCD panel?

Change the main PCB assembly or tuner.

Input the RF signal.

Check the connected cable.

Check TU501

Check IC4001

Change the main PCB assembly

Please, Contact Tech support

4-7

Page 20

4. Troubleshooting

WAVEFORMS

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

Eagle+ Out (Clk, H-Sync)

4-8

Page 21

4-1-5. No Video (Tuner DTV)

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

Major

checkpoints

Check the DTV source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Diagnostics

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Check the RF source and

check the connection of RF cable?

Yes

Does the digital data appear

at C510, C511?

Yes

Does the digital data appear at output

of R522~R529?

Yes

Does the digital data appear at output

of R452, R453, R402, R403, R404?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input the RF signal.

Check the connected cable.

Check TU501

Change the main PCB assembly

or tuner.

Check IC502

Change the main PCB assembly

Check IC4001

Change the main PCB assembly

Please, Contact Tech support

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

4-9

Page 22

4. Troubleshooting

WAVEFORMS

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

Eagle+ Out (Clk, H-Sync)

4-10

Page 23

4-1-6. No Video (Video CVBS)

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

Major

checkpoints

Check the Video CVBS source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Diagnostics

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Check the video source and

check the connection of

video cable?

Yes

Does the signal appear at R626~R629?

Yes

Does the signal appear at R348?

Yes

Does the digital data appear at output

of R452, R453, R402, R403, R404?

of R522~R529?

Yes

Input a video signal.

Check the connected cable.

Check CN604

Change the main PCB ass’y or

Side-AV Ass’y

Check IC4001

Change the main PCB assembly

Check IC4001

Change the main PCB assembly

Yes

Check the LVDS cable?

Replace the LCD panel?

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

Please, Contact Tech support

4-11

Page 24

4. Troubleshooting

WAVEFORMS

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

4-12

Page 25

4-1-7. No Video (S-Video)

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

Major

checkpoints

Check the S-Video source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

4. Troubleshooting

Diagnostics

Power Indicator is off.

Lamp(Backlight) Off, no video

Yes

Does the digital data appear at output

of R522~R529?

Yes

Does the signal appear

at R452, R453, R402, R403, R404?

Yes

Does the digital data appear at output

of R452, R453, R402, R403, R404?

Yes

Does the digital data appear at output

of R452, R453, R402, R403, R404?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input a video signal.

Check the connected cable.

Check CN605 or Side-AV

Change the main PCB ass’y or

Side-AV assembly

Check IC4001

Change the main PCB assembly

Check IC4001

Change the main PCB assembly

Please, Contact Tech support

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

4-13

Page 26

4. Troubleshooting

WAVEFORMS

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

S-VIDEO Input (Y/C)

4-14

Page 27

4-1-8. No Video (Component)

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

Major

checkpoints

Check the Component source

Check the MSD2248AL This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

Power Indicator is off.

Lamp(Backlight) Off, no video

4. Troubleshooting

Yes

Check component source and

Diagnostics

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

check the connection of

component cable ?

Yes

Does the signal appear at

R620, R621, R622(Y,Pb,Pr)?

Yes

Does the digital data appear at output

of R522~R529?

Yes

Does the digital data appear at output

of R452, R453, R402, R403, R404?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input a component signal.

Check the connected cable.

Check JA602

Change the main PCB ass’y

Check IC4001

Change the main PCB assembly

Check IC4001

Change the main PCB assembly

Please, Contact Tech support

4-15

Page 28

4. Troubleshooting

WAVEFORMS

Tuner CVBS Out (Pattern: Grey Bar)

TS DATA Out (Clk, Data [0])

Component Input (Y/Pb)

4-16

Page 29

4-1-9. No Sound

Symptom Video is normal but there is no sound..-

Major

checkpoints

4. Troubleshooting

When the speaker connectors are disconnected or damaged. When the sound processing part of the Main Board is not functioning. Speaker defect..

Diagnostics

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

Lamp(Backlight) Off, no sound.

Yes

Check the sound source and

check the connection of

sound cable?

Yes

Does the signal appear at R607, R608,

R628, R629, R669~R672, R686,

R687(VIDEO2,COMP,PC,DVI,HP)?

Yes

Check the LVDS cable?

Replace the LCD panel?

Input a sound signal.

Check the connected cable.

Check IC4001

Change the main PCB ass’y or

side-AV assembly

Please, Contact Tech support

4-17

Page 30

4. Troubleshooting

WAVEFORMS

Audio Input (Sign Wave)

12S Input (Clk, Data)

Audio Amp Out (Sign Wave)

4-18

Page 31

4-2. Alignments and Adjustments

4-2-1. General Alignment Instuction

Usually, a color LCD-TV needs only slight touch-up adjustment upon installation.

1. Check the basic characteristics such as height, horizontal and vertical sync.

Use the specied test equipment or its equivalent.

2. Correct impedance matching is essential.

3. Avoid overload. Excessive signal from a sweep generator might overload the front-end

4. of the TV. When inserting signal markers, do not allow the marker generator to distort test result.

Connect the TV only to an AC power source with voltage and frequency as specied on

5. the backcover nameplate.

Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure

6. that the power cord is disconnected before replacing any parts.

To protect against shock hazard, use an isolation transformer.

4. Troubleshooting

4-19

Page 32

4. Troubleshooting

4-3. Factory Mode Adjustments

4-3-1 Entering Factory Mode

To enter ‘Service Mode’ Press the remote -control keys in this sequence :

- If you do not have Factory remote - control

Power OFF 1 8 2 Power On

MUTE

4-3-2 How to Access Service Mode

Using the Customer Remote

Turn the power off and set to stand-by mode

Press the remote buttons in this order; POWER OFF-MUTE-1-8-2-POWER ON to turn the set on.

The set turns on and enters service mode. This may take approximately 20 seconds.

Press the Power button to exit and store data in memory.

- If you fail to enter service mode, repeat steps 1 and 2 above.

Initial SERVICE MODE DISPLAY State

- The mother page of Factory mode => Blue letter is a real displayed data

ADC ADC Target ADC Value Option BYTE ADJUST W/B W/B Movie EPA standard FBE3 VDEC Scaler Sharpness PE Sound Dynamic Contrast PDP Option

Expert Settings Expert D-Settings Expert Gray Scale Expert C-Space Expert Others CHECKSUM RESET

T-CRLAUSC-00xx 0050 6628 00CD 1510 Micom / VER. / Month/ Day / Year

- “T-PEONAUSC-1000” and “T-PEONASS-1000” are rmware.......

over version 2000 means Micronas FRC rmware.

Buttons operations withn Service Mode

Menu Full Menu Display/Move to Parent Menu

Direction Keys Direction Keys

4-20

Source

Item Selection by Moving the Cursor

Data Increase / Decrease for the Selected Item

Cycles through the active input source that are connected to the unit

Page 33

4-3-3 Factory Data

- The sub_page of Factory mode

ADC

Name Default data

AV Calibration

Component Calibration

PC Calibration

HDMI Calibration

ADC Target

Name Default data

1st_AV_Low 1st_AV_High

1st_AV_Delta

1st_COMP_Low

1st_COMP_High

1st_COMP_Delta

1st_PC_Low

1st_PC_High

1st_PC_Delta

2nd_AV_Low

2nd_AV_High

2nd_AV_Delta

2nd_COMP_Low

2nd_COMP_High

2nd_COMP_Delta

2nd_PC_Low

2nd_PC_High

2nd_PC_Delta

2nd_HDMI_Low

2nd_HDMI_High

2nd_HDMI_Delta

4. Troubleshooting

220

235

1 1

235

1 1

235

1 1

235

1 1

235

1 1

235

4-21

Page 34

4. Troubleshooting

ADC Value

Name Default data

LUMA_OFFSET

LUMA_GAIN

RED_CUTOFF

GREEN_CUTOFF

BLUE_OFFSET

RED_GAIN

GREEN_GAIN

BLUE_GAIN 2nd_R offset 2nd_G offset 2nd_B offset

2nd_R gain 2nd_G gain 2nd_B gain

128 128 128 128 128 128 128 128 128 128 128 128 128 128

Option Byte

COMP. Number

Anynet+(HDMI-CEC)

Mute Time[RF]

PC Mode Ident

PANEL ENTER KEY

Name Default data

LCD/PDP

Inch

Panel Option

Dimming

Mirror

AV Number

HDMI Number

Light Effect

HeadPhone

Carrier Mute

Volume Curve

Caption Level

RS 232C

Gamma

CH Memory

Shop Mode

HPD Control

7.5IRE Set

7.5IRE Offset HDMI 1080p

EER Count

Expert ADJ.

Auto wall

SAMEX

LCD

xx Inch

xxAM

INT

OFF

2 2

3 ON ON ON

OFF

ON ON

0.85

600mS

OFF Auto OFF

OFF

4-22

Page 35

Adjust

Name Default data

Watchdog Enable

Watchdog Count

Spread Spectrum

Shop Mode

DEBUG MODE

LVDS Format

White Balance (Available over 26 inches. (With FBE3))

Name Default data

Sub Brightness

R-Offset

G-Offset

B-Offset

Sub Contrast

R-Gain G-Gain B-Gain

10sec

OFF OFF

DEBUG OFF

VESA

128 128 128 128 128 128 128 128

4. Troubleshooting

White Balance Available 19 & 22 inches.( Without FBE3)

Name Default data

Sub Brightness

R-Offset

G-Offset

B-Offset

Sub Contrast

R-Gain G-Gain B-Gain

White Balance Available only PDP.

Name Default data

Sub Brightness

R-Offset

G-Offset

B-Offset

Sub Contrast

R-Gain G-Gain B-Gain

128 128 128 128 128 128 128 128

4-23

Page 36

4. Troubleshooting

Adjust

Name Default data

W/B MOVIE

MODE

Color Tone

MSub Brightness

MSub Contrast

W2_Rgain

W2_Bgain W2_Roffset W2_Boffset

W1_Rgain

W1_Bgain W1_Roffset W1_Boffset NOR_Rgain NOR_Bgain

NOR_Roffset

NOR_Boffset

C2_Rgain C2_Bgain

C2_Roffset

C2_Boffset

Movie Contrast

Movie Bright

Movie Color

Movie Sharpness

Movie Tint

Movie Backlight

Movie Gamma

Dynamic

Cool1

128 128

-26

-1 4

-43

-4 4 7

-11

-2 2

-32 22

1 70 50 25 45

5 off

EPA Standard

Standard Contrast Standard Brightness Standard Sharpness

Standard Color

Standard Tint

Standard Backlight

4-24

Name Default data

80 45 50 50

0 7

Page 37

FBE3

Name Default data

Patt-Sel

B-Slope gain

B-Tilt min

B-Tilt max Lfunc-Basis Hfunc-Basis

Mean-Offset1 Mean-Offset2

Mean-Slope

ACR-Offset

ACR-Th1 ACR-Th2

Skin-Enable

Skin-UV

Sub color

M-Skin-UV

M-Sub color

Input Format

Output Format

4. Troubleshooting

0 60 30

110

75 80 30

235 112

10 10

110

ON 128 128 128 128

VESA VESA

VDEC

Scaler

Name Default data

Saturation

CTI_MD

CBCRLP_MD

Name Default data

DNR_off DNR_low DNR_mid

DNR_high

Y_DELAY_EN

YC_STEP

2 1

0 2 3 4 1 1

4-25

Page 38

4. Troubleshooting

Sharpness

Name Default data

H1 Gain H2 Gain H3 Gain H4 Gain V1 Gain

V2 Gain H overshoot V overshoot

H undershoot V undershoot

Coring TH2 Coring TH1

Mid_color_level

8 8 8

8 FF 60 FF 60

Sound

Name Default data

Skin_EN

D_Skin

M_Skin

Name Default data

Carrier Mute

High DEV

CM_TH_HIGH

CM_TH_LOW

ST_PILOT_TH_HIGH

ST_PILOT_TH_LOW

ST_VAR_TH_HIGH

ST_VAR_TH_LOW

SAP_AMP_TH_HIGH

SAP_AMP_TH_LOW

SAP_NSR_TH_HIGH

SAP_NSR_TH_LOW

AMP_Volume

AMP_Limiter_Attack

AMP_Limiter_Release

AMP_Post-Scale

AMP_Speaker EQ

AV Sync.

1 12 12

2990 20B0

D00

600 1800 1000

4 4500 3000

0 0

4-26

Page 39

Dynamic Contrast

Name Default data

4. Troubleshooting

Dynamic Contrast

Dynamic Dimming

Y_MEAN

Checksum

Name Default data

Checksum

After execute CHECKSUM

CHECKSUM

Main : 0xB018

Back: Press Menu Key

Reset

off

0x0000

4-27

Page 40

4. Troubleshooting

4-4. White Balance - Calibration

4-4-1 White Balance -Calibration

1. Calibration

4-4-2 Service Adjustment -

Color Calibration



Adjust spec.

1. Source : HDMI

2. Setting Mode : 1280*720@60Hz

3. Pattern : Pattern #24 (Chess Pattern)

You must perform Calibration in the Lattice Pattern before adjusting the White Balance.

AV Calibration Comp Calibration PC Calibration HDMI Calibration

( Chess Pattern )

4. Use Equipment : CA210 & Master MSPG925 Generator

- Use other equipment only after comparing the result with that of the Master equipment.

Input mode Calibration Pattern

CVBS IN (Model_#1) Perform in NTSC B&W Pattern #24 Lattice

Component IN (Model_#6) Perform in 720p B&W Pattern #24 Lattice PC Analog IN (Model_#21)

HDMI IN Perform in 720p B&W Pattern #24 Lattice

Perform in VESA XGA (1024x768)

B&W Pattern #24

Lattice

4-28

Page 41



Method of Color Calibration (AV)

1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port

2) Press the Source key to switch to “AV1” mode

3) Enter Service mode

4) Select the “Calibration” menu

5) Select the “AV Calibration” menu.

6) In “AV Calibration Off” status, press the “

7) When Calibration is complete, it returns to the high-level menu.

8) You can see the change of the “AV Calibration” status from Failure to Success.

Method of Color Calibration (Component)



1) Apply the 720p Lattice (N0. 6) pattern signal to the Component IN 1 port

2) Press the Source key to switch to “Component1” mode

3) Enter Service mode

4) Select the “Calibration” menu

5) Select the “Comp Calibration” menu.

6) In “Comp Calibration Off” status, press the “

7) When Calibration is complete, it returns to the high-level menu.

8) You can see the change of the “Comp Calibration” status from Failure to Success.

Method of Color Calibration (PC)



1) Apply the VESA XGA Lattice (N0. 21) pattern signal to the PC IN port

2) Press the Source key to switch to “PC” mode

3) Enter Service mode

4) Select the “Calibration” menu

5) Select the “PC Calibration” menu.

6) In “PC Calibration Off” status, press the “

7) When Calibration is complete, it returns to the high-level menu.

8) You can see the change of the “PC Calibration” status from Failure to Success.

” key to perform Calibration.

4. Troubleshooting

Method of Color Calibration (HDMI)



1) Apply the 720p Lattice (N0. 6) pattern signal to the HDMI1/DVI IN port

2) Press the Source key to switch to “HDMI1” mode

3) Enter Service mode

4) Select the “Calibration” menu

5) Select the “HDMI Calibration” menu.

6) In “HDMI Calibration Off” status, press the “

7) When Calibration is complete, it returns to the high-level menu.

8) You can see the change of the “HDMI Calibration” status from Failure to Success.

” key to perform Calibration.

4-29

Page 42

4. Troubleshooting

4-4-3 White Balance - Adjustment

(low light) (hight light)

3. W/B

Sub Bright R offset G offset B offset

Sub Contrast R gain G gain B gain

(W/B adjustment Condition refer next page)

4-5. White Ratio (Balance) Adjustment

You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).

Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes.

The optimal values for each mode are congured by default. (Refer to T It varies with Panel’s size and Specication.

- Equipment : CS-210

- Pattern: MIK K-7256 #92 “Flat W/B Pattern” as standard

- Use other equipment only after comparing the result with that of the Master equipment.

able 1, 2)

- Set Aging time : 60min

- Calibration and Manual setting for WB adjustment.

HDMI : Calibration at #24 Chessboard Pattern Manual adjustment #92 pattern (720p) COMP: Calibration at #24 Chessboard Pattern CVBS: Calibration at #24 Chessboard Pattern

- If nishing in HDMI mode, adjustment coordinate is almost same in A

- White Balance Manual Adjustment

Manual adjustment at #92 pattern (720p) Manual adjustment at #92 pattern (NTSC)

V/COMP mode.

4-30

Page 43

x y Y(L) T(K) + MPCD

CVBS

(NTSC)

COMP (720P)

HDMI

(720P)

H/L 272 287

L/L 272 287

H/L 272 287

L/L 272 287

H/L 272 287

L/L 272 287

- Adjustment Specication

White Balance : High light (±2), Low light (±3) Luminance : High light (Don’t care), Low light (±0.2 Ft/L)

4-6. Servicing Information

Adjustment Coordinate

(Sub_CT:132)

12.0cd/m

(Sub_CT:132)

12.0cd/m

(Sub_CT:132)

12.0cd/m

(3.5 Ft)

4. Troubleshooting

+10)

11,000 (

+10)

11,000 (

+10)

11,000 (

+10)

11,000 (

+10)

11,000 (

+10)

11,000 (

4-6-1 USB Download Method

Samsung may offer upgrades for TV’s rmware in the future. Please contact the Samsung call center at

1-800-SAMSUNG (7267864) to receive information about downloading upgrades and using a USB drive. Upgrades will be possible by connecting a USB drive to the USB port located on located on the back of your TV.

Insert a USB drive containing the rmware upgrade into the

SERVICE port on the rear of the TV. Software can not be upgraded through the LAN connection.

Press the MENU button to display the menu. Press the ENTER button.

Press the ENTER button.

4. The message “Scanning for USB... It may take up to 30 seconds.” is displayed.

The message “Upgrade version XXXX to version XXXX The

5. system would be reset after upgrade.” is displayed. Press the ◄ or ► to select the “Yes”, then press the ENTER button.

Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied. The TV will turn off

and turn on automatically after completing the rmware upgrade. Please check the rmware version after the upgrades are

complete. When software is upgraded, video and audio settings you have made will return to their default (factory) settings. We recommend you write down your settings so that you can easily reset them after the upgrade.

or button to select “Setup”, then press the

or button to select “SW upgrade”, then press the

4-31

Page 44