Samsung LN32B550K1R, LN40B550K1R, LN46B550K1R, LN52B550K1R Service Manual

LCD-TV

Chassis : G5K32MLA G5K40MLA G5K46MLA G5K52MLA Model : LN32B550K1R LN40B550K1R LN46B550K1R LN52B550K1R

SERVICE

TFT-LCD TV Contents

1. Precautions

2. Product specications

3. Disassembly and

4. Troubleshootin

5. Exploded View & Part Lis

6. Wiring Diagra

Manual

Reassembly

LN32B550K1R/LN40B550K1R LN46B550K1R/LN52B550K1R

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. MEDIA PLAY ................................................................................................................... 2-7

2-3. Specication Comparison to Old Models ........................................................................ 2-9

2-4. Accessories .................................................................................................................. 2-10

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 ........................................................................................ 4-18

4-3. Factory Mode Adjustments ........................................................................................... 4-19

4-4. White Balance - Calibration .......................................................................................... 4-29

4-5. Servicing Information .................................................................................................... 4-31

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

5-1. LN32B550K1R Exploded View ....................................................................................... 5-1

5-2. LN40B550K1R Exploded View ....................................................................................... 5-3

5-3. LN46B550K1R Exploded View ....................................................................................... 5-5

5-4. LN52B550K1R Exploded View ....................................................................................... 5-7

5-5. LN32B550K1R Parts List ................................................................................................ 5-9

5-6. LN40B550K1R Parts List .............................................................................................. 5-33

5-7. LN46B550K1R Parts List .............................................................................................. 5-57

5-8. LN52B550K1R Parts List .............................................................................................. 5-81

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

6-1. Wiring Diagram 32” /40” ................................................................................................. 6-1

6-2. Wiring Diagram 46”/52” .................................................................................................. 6-2

6-5. Connector Functions ...................................................................................................... 6-5

6-6. Cables ............................................................................................................................ 6-5

GSPN (Global Service Partner Network)

Area Web Site

North America

Latin America

CIS http://cis.samsungportal.com

Europe http://europe.samsungportal.com

China http://china.samsungportal.com

Asia http://asia.samsungportal.com

Mideast & Africa

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.

http://service.samsungportal.com

http://latin.samsungportal.com

http://mea.samsungportal.com

Printed in Korea

P/N: BN82-00582A-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 any circuitry.

1-1-2. Servicing the LCD TV

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

It is essential that service technicians have an accurate voltage meter available at all times.

2. 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

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 resistor capacitor 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).

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

(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

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 safety related 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

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:

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 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 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

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, input terminals and earphone jacks).

Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500 V) to the blades 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 mega ohm.

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

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

safety precautions, always follow the safety precautions.

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 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 accumulation of an electrostatic charge.

Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.

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

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 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.

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.

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

1. Precautions

Memo

1-4

2. Product specications

2-1. Feature & Specications

Model LN32B550K1R

Feature

Analog-TV, RF, 4-HDMI, 2-Component, 2-A/V, 1-USB2.0, D-SUB

�

Brightness : 500cd/m

�

Contrast Ratio : 5000:1

�

Response time : 8ms

�

Super-PVA

�

PIP(in HDMI 1, 2, 3, 4, Component 1, 2, PC Mode and Sub picture is available only in TV mode)

�

SRS TruSorround HD

�

Item Description

LCD Panel T315HW02 V2,AU31H22,8bit,31.5 inch,16.7M,16:9,0 to +50,12V,AMVA3,72%,

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

Specications

31.5 inch, FHD, 4U-Lamp, w/o inverter, 60Hz

Vertical : 56 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 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 698.4 (H) x 392.85 (V) (mm)

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

Power Consumption <230 W ( < 1W, stand by )

Dimensions

Set (W x D x H)

Weight (Set) 12.6 kg with stand

TV System Tuning Frequency Synthesize

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

793.9 x 240.0 x 569.7 (mm) with stand

793.9 x 77.1 x 569.7 (mm) without stand

10.2 kg without stand

System PAL, SECAM, NTSC, NTSC4.43

Sound BG, DK, I, M

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 10W(Left/Right)

Equalizer : 5band Output Frequency : RF : 20 Hz ~ 15.4 kHz AV/Componet/HDMI : 20 Hz ~ 20 kHz

Note: Anynet+, MEDIA PLAY

2-1

2. Product specications

Model LN40B550K1R

Feature

Analog-TV, RF, 4-HDMI, 2-Component, 2-A/V, 1-USB2.0, D-SUB

�

Brightness : 500cd/m

�

Contrast Ratio : 5000:1

�

Response time : 8ms

�

Super-PVA

�

PIP(in HDMI 1, 2, 3, 4, Component 1, 2, PC Mode and Sub picture is available only in TV mode)

�

SRS TruSorround HD

�

Specications

Item Description

LCD Panel V400H1-L05,CM40H15,8bits,40inch,16.7M,16:9,0 to +50,12V,DJITO, 72%,40 inch,

FHD, w/o inverter, 60Hz

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

Vertical : 56 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 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 885.6(H) X 498.15(V) (mm)

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

Power Consumption <230 W ( < 1W, stand by )

Dimensions

Set (W x D x H)

982.4 x 255.0 x 675.8 (mm) with stand

982.4 x 78.6 x 626.3 (mm) without stand

Weight (Set) 18.0 kg with stand

14.9 kg without stand

TV System Tuning Frequency Synthesize

System PAL, SECAM, NTSC, NTSC4.43

Sound BG, DK, I, M

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 10W(Left/Right)

Equalizer : 5band Output Frequency : RF : 20 Hz ~ 15.4 kHz AV/Componet/HDMI : 20 Hz ~ 20 kHz

Note: Anynet+, MEDIA PLAY

2-2

2. Product specications

Model LN46B550K1R

Feature

Analog-TV, RF, 4-HDMI, 2-Component, 2-A/V, 1-USB2.0, D-SUB

�

Brightness : 500cd/m

�

Contrast Ratio : 5000:1

�

Response time : 8ms

�

Super-PVA

�

PIP(in HDMI 1, 2, 3, 4, Component 1, 2, PC Mode and Sub picture is available only in TV mode)

�

SRS TruSorround HD

�

Specications

Item Description

LCD Panel T460HW03 V4,AU46H34,8bit,46 inch,16.7M,16:9,0 to +50,12V,AMVA3,72%,46 inch,

FHD, 20S-Lamp, 60Hz

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

Vertical : 56 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 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

1018.08(H) X 572.67(V) (mm)

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

Power Consumption <230 W ( < 1W, stand by )

Dimensions

Set (W x D x H)

1116.1 x 275.0 x 769.5 (mm) with stand

1116.1 x 78.6 x 706.3 (mm) without stand

Weight (Set) 23.2 kg with stand

19.8 kg without stand

TV System Tuning Frequency Synthesize

System PAL, SECAM, NTSC, NTSC4.43

Sound BG, DK, I, M

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 10W(Left/Right)

Equalizer : 5band Output Frequency : RF : 20 Hz ~ 15.4 kHz AV/Componet/HDMI : 20 Hz ~ 20 kHz

Note: Anynet+, MEDIA PLAY

2-3

2. Product specications

Model LN52B550K1R

Feature

Analog-TV, RF, 4-HDMI, 2-Component, 2-A/V, 1-USB2.0, D-SUB

�

Brightness : 500cd/m

�

Contrast Ratio : 5000:1

�

Response time : 8ms

�

Dynamic contrast, Super-PVA

�

PIP(in HDMI 1, 2, 3, 4, Component 1, 2, PC Mode and Sub picture is available only in TV mode)

�

SRS TruSorround HD

�

Specications

Item Description

LCD Panel LTF520HB07,SSNZBU,8bit,52inch,1.67M,16:9,0.6(H)*0.6(W),0 to +50,12V,SPVA

72%,52 inch FHD 60hz

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

Vertical : 56 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 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

1018.08(H) X 572.67(V) (mm)

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

Power Consumption <230 W ( < 1W, stand by )

Dimensions

Set (W x D x H)

1258.4 x 305.0 x 852.2 (mm) with stand

1258.4 x 79.9 x 797.9 (mm) without stand

Weight (Set) 28.7 kg with stand

24.9 kg without stand

TV System Tuning Frequency Synthesize

System PAL, SECAM, NTSC, NTSC4.43

Sound BG, DK, I, M

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 15W(Left/Right)

Equalizer : 5band Output Frequency : RF : 20 Hz ~ 15.4 kHz AV/Componet/HDMI : 20 Hz ~ 20 kHz

Note: Anynet+, MEDIA PLAY

2-4

CHANNEL FREQUENCY TABLE

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

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

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

2. Product specications

2-5

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

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. . .

. . . .

125 125 125 799.25 ULTRA 125 798.00 125 799.25

. . . . . . . . .

2-6

2. Product specications

2-2. MEDIA PLAY

2-2-1 Using the MEDIA PLAY Function

This function enables you to view and listen to photo(JPEG), audio les(MP3) and movie(MPEG) saved on a USB Mass Storage Class (MSC) device.

Press the POWER button on the remote control or front panel.

- The TV is powered on.

Connect a USB device containing JPEG and/or MP3 and or/MPEG

les to the MEDIA PLAY jack (USB jack) on the side of the TV.

- (If you enter the MEDIA PLAY mode with no USB device connected the message “No external storage device found. Check the connection status.” will appear. In this case, insert the USB device, exit the screen by pressing the W.LINK button on the remote control and enter the MEDIA PLAY screen again.

- MTP (Media Transfer Protocol) is not supported.

- The le system only supports FAT16/32 (The NTFS le

system is not supported).

- Certain types of USB Digital camera and audio devices may not be compatible with this TV.

- MEDIA PLAY only supports USB Mass Storage Class devices (MSC). MSC is a Mass Storage Class Bulk-Only Transport device. Examples of MSC are Thumb drives and Flash Card Readers (Both USB HDD and HUB are not supported.)

- Please connect directly to the USB port of your TV. If you are using a separate cable connection, there may be a USB Compatibility problem.

Before connecting your device to the TV, please back up your les to prevent them from damage or loss of data.SAMSUNG is not responsible for any data le damage or data loss.

- Do not disconnect the USB device while it is loading.

- MSC supports MP3 and JPEG les, while a PTP device

supports JPEG les only.

- The sequential jpeg format is supported.

- Photo and audio les must be named in English, French or

Spanish. If not, the les can not be played. Change the le names to English, French or Spanish if necessary.

- The higher the resolution of the image, the longer it takes to display on the screen.

- The maximum supported JPEG resolution is 15360 x 8640 pixels.

- For unsupported or corrupted les, the “Not Supported File Format” message is displayed.

2-7

2. Product specications

-. movie format

File Extention Container Video Decoder Resolution Audio codec

Xvid 800 x 600

* .avi AVI

* .mp4 MP4

* .mpg PS MPEG2 1920 x 1088 AC3

* .vro

* .vob

VRO MPEG2 1920 x 1088 AC3

H.264 MP 1920 x 1088 AC3

MPEG4 SP 800 x 600

MJPEG 800 x 600 PCM

H.264 BP 1920 x 1088 AAC

H.264 MP 1920 x 1088

PCM

ADPCM

PCM

ADPCM

PCM

AAC

2-8

2. Product specications

2-3. Specication Comparison to Old Models

Model LB5K CORAL

Design

Display Type LCD TV LCD TV

Built-in Tuner O O

Resolution 1920 x 1080 1366 x 768

LCD Panel 40”TFT LCD Panel 60Hz 40”TFT LCD Panel 50Hz

Screen Size 40” 40”

Picture ratio 16 : 9 16 : 9

Dimensions (W x H x D)

Weight

Brightness 500 nit 450 nit

Contrast Ratio 5000:1 2000:1

Picture Enhacer DNIe (FBE3) DNIe (FBE3)

Equalizer 5 Band 5 Band

Auto Motion Plus 120Hz O O

Surround Sound 2 Way SRS TruSurround HD 2 Way SRS TruSurround TX

Speaker Output 10W + 10W 10W + 10W

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

982.4 x 255.0 x 675.8 (mm) with stand

982.4 x 78.6 x 626.3 (mm) without stand

18 kg (set)

22.5 kg (package)

1094.3 x 289.9 x 675.4 (mm) with stand

1094.3 x 102.8 x 607.3 (mm) without stand

23.70 kg

2-9

2. Product specications

2-4. Accessories

Product Description Code. No Remark

Remote Control & Batteries

(AAA x 2)

Power Cord 3903-000193

Cover-Bottom BN63-05466B

Owner’s Instructions BN68-01929A

Cleaning Cloth BN63-01798B

Warranty Card / Registration

Card / Safety Guide Manual

(Not available in all locations)

BN59-00887A

AA68-03242M BH68-00527B

Samsung Electronics

Service center

Stand Screw x 4 6002-001294

Stand BN90-02001A

2-10

3. Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the LN40B550K1R LCD TV.

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

3-1. Disassembly and Reassembly

Cautions: 1. Disconnect the monitor 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 monitor face down on cushioned table. Remove screws from the Stand. Remove stand.

3-1

3. Disassembly and Reassembly

Description Picture Description Screws

2. Remove the screws of rear-cover.

3. Lift up and remove the rear-cover.

* Rear view of 32” / 40”

* Rear view of 46” / 52”

3-2

Description Picture Description Screws

4. Remove the screws of main board.

4-1. Remove the screws of IP board.

Remove the IP board. (32” / 40”)

3. Disassembly and Reassembly

4-2. Remove the screws of IP board.

Remove the IP board. (46” / 52”)

3-3

3. Disassembly and Reassembly

Description Picture Description Screws

5. Remove the speakers. (R/L)

6. Remove the screws of Stand BKLT. Lift up the Stand BKLT.

7. Remove the screw of panel top.

3-4

Description Picture Description Screws

7-1. Remove the screw of wall bracket.

(46” / 52” only)

8-1. Front

3. Disassembly and Reassembly

8-2. Panel

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

3-5

4. Troubleshooting

M a in

Bo ard

IP Board

T-CON

4. Troubleshooting

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.

2. check internal pattern FBE3 if there is some picture noise. FBE3 : Factory mode(Info - MENU - MUTE - power on) -> Advanced Menu -> Option Block -> FBE -> Pattern Select Press right button of Remocon. If FBE3 NG, change the main Board.

4-1

4. Troubleshooting

Simple ow chart of malfunction

Does the TV turn on?

Check the Power Cord

Yes

Is standby LED on?

Yes

Can you see anything

on the screen?

Yes

is any sound of TV?

Yes

Can you see OSD menu

running on the screen?

Yes

Check LVDS cable connected

to Main Board.

If necessary,

replace the Main Board

Yes

Can you see Digital

Channel broadcast ?

Yes

Replace the Main Board

Check dimming cable.

If necesary replace the

Main Board.

A5V appear at the pin

27 of CN201?

Yes

B13V appear at the pin

9 or 10 of CN201?

Yes

Please, contact Tech support

Yes

Check 30p cable.

If necessary, replace the

IP board.

Change the main board.

4-2

4. Troubleshooting

Troubelshooting about new functions

I tried to set up BGM in MEDIA PLAY.

I can select a le but I cannot congure the Mood settings.

I cannot enter Photos or Music after running MEDIA PLAY.

Photo thumbnails are not displayed in the Photo category.

Video thumbnails are not displayed in the Movie category.

The JPEG les on the USB memory

are not in the list.

I have connected a digital camera, but I cannot browse the folders.

I cannot play the currently

highlighted le.

I want to know about supported photo color formats.

I want to know about the maximum supported photo resolution.

I want to know about supported music sampling frequencies.

I cannot play MP3 les downloaded

from websites. (Paid MP3 download sites such as Melon)

I want to know about supported USB devices.

The supported photo play is slow. An explanation of

I cannot play paid MP3 les. An explanation of

I cannot play a digital camera that supports PTP.

I cannot use the morning call function with a digital camera that supports PTP.

I have changed the device settings to MSC connection mode after connecting PTP or during an operation, but the device is not recognized.

The WLAN does not work. An explanation of

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

An explanation of

MEDIA PLAY

The BGM shufe and Mood settings are only available when the Music DB conguration is

complete. Enter the Music category and compelete

the Music DB conguration rst.

Check if the USB memory contains MP3 or JPEG

les.

This may occur when the photo format is not

supported by the TV or the JPEG les do not include

thumbnails.

A video thumbnail is only displayed when the video has been played at least once.

Files with a path longer than 256 characters will not be displayed.

When a device is connected in PTP mode, a browsing folder is not supported.

Check if another le is selected (checked). The selected le will be played

The RGB, YUV, YCbCr, CMYK, YCCK, GRAY formats are supported.

The maximum resolution is 15360x8640 pixels.

Supported frequencies are 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 Khz

Playing DRM les (used to protect content) is not

supported.

The TV only supports devices that do not support the Mass Storage Class or PTP Class. Devices are not supported when they are connected to the TV via a USB hub. Supporting USB devices that require external power such as an external-type HDD is not guaranteed. Supporting USB devices that require an additional device driver installation is not guaranteed.

Since the TV does not use caching unlike for a PC, it make take some time to display a high-resolution photo.

If the MP3 le is a DRM (Copy Protected) le, the le

will not be played.

Check the PTP mode of the digital camera. It will not work in Printer Connection mode.

A morning call cannot be set with a PTP device.

Switching the connection mode between MSC and PTP after a connection is made or during anoperation is not supported. You can only change the digital camera connection mode after disconnecting it.

Equipment other than the WLAN USB stick supplied by Samsung Electronics (as a bundle) will not work.

The sharer must support IEEE 801.11 g/b. IEEE

801.11 n is not supported.

4-3

4. Troubleshooting

I cannot nd Internet Sharer in the Wlan

settings menu.

The WLAN data rate is slow. An explanation of

An explanation of MEDIA PLAY

MEDIA PLAY

Only InfraStructure mode of the sharer is supported. AdHoc mode is not supported. If multiple sharers are being

used, congure them so that they do not use the same

channel. Set up the sharer to not control the ICMP so that it answers the Ping test.

If the distance from the sharer is too far, the operation may slow or the sharer may not be found. If there is an obstacle, wall or electronic device between the TV and the sharer, the operation may slow or the sharer may not be found due

to a difculty in communication.

4-4

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 IP BOARD is not functioning. In this case, check the following:

4. Troubleshooting

The LEDs on the front panel do not work when connecting the power cord. The IP BOARD 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 IP BOARD. Replace the Main Board.

Diagnostics

Lamp(Backlight) Off, power indicator

LED on?

Yes

Check the backlight on,

when 30p cable unconnected.

Yes

Does proper Stand-By DC

A5V appear at BD1003?

Yes

Does proper Main DC B13VS,

B13V, B5V appear at BD1006,

BD1004, BD1005?

Yes

Does proper DC A3.3V

appear at R1003?

Yes

Does proper DC B3.3VD, B9V,

B1.25VD, B1.8V appear

at R1030, R1101, BD1010, R1105?

Yes

Does proper DC B12V

appear at F1 of T-con b’d?

Yes

Check a connetion power code.

Change 30p cable

32” : BN39-01099H

40” 46” 52” : BN39-01099K or

Change Main Power Assy

32” : BN44-00261B 40” : BN44-00264C 46” : BN44-00265A 52” : BN44-00267B

Change the Main Assy

BN94-02709A

Change the LVDS cable

32” : BN96-10077A 40” : BN96-10075A 46” : BN96-10075A 52” : BN96-10074A

Does proper DC B1.25V, B3.3VD

appear at BD8005, BD8004 of

T-con b’d?

Yes

Does proper VCC18, VCC33 appear at

BT7, BT8 of T-con b’d?

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

Change the T-con b’d

Check a other function

(No picture part)

4-5

4. Troubleshooting

4-1-2. No Video (Analog PC signal)

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

Check the PC source

Major

checkpoints

Check the SEMS03.

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

Diagnostics

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

Check the PC source and

check the connection of D-SUB?

Yes

Does the signal appear at

R6037, R6034, R6035, R6032, R6023

(R, G, B, H, V) of IC6003?

Yes

Does the digital data appear at

R8051 (HSYNC_OUT)

Pin #19,20,34,35 (LVDS Data clk)

of LVDS connector?

Yes

Check the LVDS cable?

Replace the LCD panel?

Check a set in the

‘Stand-by mode’ or ‘DPMS mode’.

Input the analog

PC signal properly.

Check JA4005_PC, PC cable.

Change the Main Assy

BN94-02709A

Check IC8003. Change the Main Assy

BN94-02709A

Please, Contact Tech support.

4-6

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