Samsung Lcd Ltm295wx

7/25/2019 Samsung Lcd Ltm295wx

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LCD-TV

Chassis M odel

A L2 9N O LTM 2 9 5 W

A L4 0N O LTM 4 0 5 W

Manual

SERVICELCD -TV CON TEN TS

1. Precautions

2. Product Specifications

3. Disassembly & Reassembly

4. Alignment & Adjustments

5. Troubleshooting

6. Exploded View & Parts List

7. Electrical Parts List

8. Block Diagram

9. Wiring Diagram

10. Schematic Diagrams

11. Panel Description

CONFIDENTIAL


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1-1-1 Warnings

1. For continued safety, do not attempt to modify thecircuit board.

2. Disconnect the AC power and DC Power Jackbefore servicing.

1-1-2 Servicing the LCD Monitor

1. When servicing the LCD Monitor disconnect theAC line cord from the AC outlet.

2. It is essential that service technicians have anaccurate voltage meter available at all times. Checkthe calibration of this meter periodically.

1-1-3 Fire and Shock Hazard

Before returning the monitor to the user, perform thefollowing safety checks:

1. Inspect each lead dress to make certain that theleads are not pinched or that hardware is notlodged between the chassis and other metal parts inthe monitor.

2. Inspect all protective devices such as nonmetalliccontrol knobs, insulating materials, cabinet backs,adjustment and compartment covers or shields,isolation resistor-capacitor networks, mechanicalinsulators, etc.

3. Leakage Current Hot Check (Figure 1-1):

WARNING:

Do not use an isolation transformer during this test.Use a leakage current tester or a metering systemthat complies with American National StandardsInstitute (ANSI C101.1, Leakage Current for

Appliances), and Underwriters Laboratories (ULPublication UL1410, 59.7).

Figure 1 -1. Leakage Current Test Circuit

4. With the unit completely reassembled, plug the ACline cord directly into a 120V AC outlet. With theunits AC switch first in the ON position and thenOFF, measure the current between a known earthground (metal water pipe, conduit, etc.) and allexposed metal parts, including: metal cabinets,screwheads and control shafts. The currentmeasured should not exceed 0.5 milliamp. Reversethe power-plug prongs in the AC outlet and repeat

the test.

1-1-4 Product Safety Notices

Some electrical and mechanical parts have specialsafety-related characteristics which are often notevident from visual inspection. The protection they givemay not be obtained by replacing them withcomponents rated for higher voltage, wattage, etc. Partsthat have special safety characteristics are identified by

on schematics and parts lists. A substitutereplacement that does not have the same safetycharacteristics as the recommended replacement part

might create shock, fire and / or other hazards. Productsafety is under review continuously and newinstructions are issued whenever appropriate.

LTM 295W / LTM 405W 1-1

CONFIDENTIAL

1 Precautions

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

1-1 Safety Precautions

DEVICEUNDERTEST

TEST ALLEXPOSED METAL

SURFACES

(READING SHOULDNOT BE ABOVE 0.5mA)

LEAKAGECURRENTTESTER

2-WIRE CORD

ALSO TEST WITHPLUG REVERSED

(USING AC ADAPTERPLUG AS REQUIRED)

EARTHGROUND

!


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1-2-1 General Servicing Precautions

1. Always unplug the units AC power cord from theAC 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) connecta test component in parallel with an electrolyticcapacitor.

2. Some components are raised above the printedcircuit board for safety. An insulation tube or tapeis sometimes used. The internal wiring issometimes clamped to prevent contact withthermally hot components. Reinstall all suchelements to their original position.

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

1. Immediately before handling any semiconductorcomponents or assemblies, drain the electrostaticcharge from your body by touching a known earthground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard, be sure toremove the wrist strap before applying power tothe monitor.

2. After removing an ESD-equipped assembly, place iton a conductive surface such as aluminum foil toprevent accumulation of an electrostatic charge.

3. Do not use freon-propelled chemicals. These cangenerate electrical charges sufficient to damage

ESDs.4. Use only a grounded-tip soldering iron to solder or

desolder ESDs.

5. Use only an anti-static solder removal device. Somesolder removal devices not classified as anti-staticcan generate electrical charges sufficient to damageESDs.

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

5. Insulation Checking Procedure: Disconnect thepower cord from the AC source and turn the powerswitch ON. Connect an insulation resistance meter(500 V) to the blades of the AC plug.

The insulation resistance between each blade of theAC plug and accessible conductive parts (seeabove) should be greater than 1 megohm.

6. Always connect a test instruments ground lead tothe instrument chassis ground before connectingthe positive lead; always remove the instrumentsground lead last.

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

7. Immediately before removing the protectivematerial from the leads of a replacement ESD,touch the protective material to the chassis orcircuit assembly into which the device will beinstalled.

Caution: Be sure no power is applied to thechassis or circuit and observe all

other safety precautions.8. Minimize body motions when handling

unpackaged replacement ESDs. Motions such asbrushing clothes together, or lifting your foot froma carpeted floor can generate enough staticelectricity to damage an ESD.

1 Precautions

1-2 LTM 295W / LTM 405W

CONFIDENTIAL

1-3 Electrostatically Sensitive Devices (ESD) Precautions

Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonlycalled Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effecttransistors. The following techniques will reduce the incidence of component damage caused by static electricity.

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 Precautionssection of this manual.

Note: If unforeseen circumstances create conflict between the following servicing precautions and any of thesafety precautions, always follow the safety precautions.


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CONFIDENTIAL

2 Product Specifications

2-1 Specifications

LCD Panel TFT-LCD panel, RGB verti cal stri pe, norma lly black TFT-LCD panel, RGB verti cal stri pe, norma lly black

transmissive, (29 -Inch) viewable, 0.4935 mm pixel pitch transmissive, (40-Inch) viewable, 0.6735 mm pixel pitch

Scanning Frequency Horizontal : 30 KHz ~ 60 KHz

Vertical : 56 Hz ~ 75 Hz

Display Colors 16,777,216 M i l l ion colors

M aximum Resolution Horizontal : 1280 PixelsVertical : 768 Pixels

Input Video Signal Analog, 0.7 Vp-p 5 % posit ive at 75 ,internally terminated

Input Sync Signal Type : Seperat e H/ V sync, Composi te H/ V, Sync-on-GreenLevel : TTL level

AC power vo l tage & Frequency AC 90 ~ 240V 60 Hz/50 Hz 3 Hz, DC 28V / 8A

Pow er Consumpt ion 160W (max) 220W (max)

Dimensions

Unit (W x D x H) 29.9 x 7.7 x 22.4 Inches (759.6 x 195.0 x 568.5 mm) 39.6 x 11.8 x 29.4 Inches (1006.0 x 300.0 x 7 46.5 mm)Carton (W x D x H) 37.8 x 7.7 x 22.4 Inches (961.2 x 195.0 x 568.5 m m) 49.1 x 11.8 x 29.4 Inches (1247.6 x 300.0 x 74 6.5 mm)

W eight (Net / Gross)

Environmental Considerat ions Operat ing Temperature : 50F ~ 104F (10C ~ 40C)Humidity : 10 % ~ 80 %

Storage Temperature : -4F ~ 113F (-20C ~ 45C)Humidity : 5 % ~ 95 %

TV System

Sound Characterist ics M a x Int ernal speaker Out : Right c 10 W / Lef tc 10 W

Bass control Range : -6 -12dB ~ +6 12dB

TREBLE control Range : -10 -12dB ~ +10 12dB

Output frequency : RFc 80 Hz~15 KHz/ A/ Vc 80 Hz~20 KHz

Line out : RFc 80 Hz~15 KHz/

A/

Vc 80 Hz~20 KHz

SyncMaster LTM 295W /LTM 405W comply w ith SWEDAC (M PRII) recommendations for reduced electromagnetic f ields. Designs and specif ications are subject to change w ithout prior notice.

LTM 295W / LTM 405W 2-1

ItemDescription

LTM 295W LTM 405W

18.0 kg (39.682 lbs) 28.0 kg ( 61.715 lbs)

Antena Input 75, Coaxial Cable

Color NTSC-M

Sound BTSC, A2 STEREO, EIAJ


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CONFIDENTIAL2-2 Pin Assignments

Pin No. 30 Pin Signal Cable (DVI Analog) Pin No. 30 Pin Signal Cable (DVI Analog)

1

23

4

5

6

7

8

9

10

11

1213

14

15

16

1718

19

20

21

22

23

24

25

26

2728

29

30

RX2+

RX2-GND

RX1+

RX1-

GND

RX0+

RX0-

GND

RXC+

RXC-

GNDDDC (Clock )

DDC (Data)

GND

GND

Check D-SubGND

DDC_5V

DDC_5V

GND

V/Sync

GND

H/Sync

GND

Blue

GNDGreen

GND

Red


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CONFIDENTIAL2 Product Specifications

LTM 295W / LTM 405W 2-3

2-3 Timing Chart

This section of the service manual describes the timing that the computer industry recognizes as standardfor computer-generated video signals.

48.1

1040

120

64

800

56

72.2

666

6

23

600

37

50.000

Positive

Positive

Separate

37.9

1056

128

88

800

40

60.3

628

4

23

600

1

40.000

Positive

Positive

Separate

35.2

1024

72

128

800

24

56.3

625

2

22

600

1

36.000

/ +

/ +

Separate

SVGA/56 Hz

800 x 600SVGA/60 Hz

800 x 600SVGA/72 Hz

800 x 600MAC/66 Hz

640 x 480

35.0

864

64

96

640

64

66.7

525

3

39

480

3

30.240

Negative

Negative

Separate

44.955

1650

40

70

1280

26 0

59.94

75 0

5

20

72 0

5

74.176

/ +

/ +

Separate

fH (kHz)

A sec

B sec

C sec

D sec

E sec

fV (Hz)

O msec

P msec

Q msec

R msec

S msec

ClockFreq.

(M Hz)

Polarity

H.Sync

V.Sync

Remark

VGA3/60 Hz

640 x 480VGA/72 Hz

640 x 480VGA/75 Hz

640 x 480VGA/85 Hz

640 x 480MAC/60 Hz

640 x 480

DTV/59.94 Hz

1280 x 720

DTV/59.94 Hz

1920 x 1080

Table 2-1 Timing Chart

33.716

2200

44

44

1920

192

59.94

1125

15

2

1080

5

74.176

/ +

/ +

Separate

31.5

80 0

96

40

64 0

8

60.0

52 5

2

25

48 0

2

25.175

Negative

Negative

Separate

37.9

832

40

120

640

16

72.8

520

3

20

480

1

31.500

Negative

Negative

Separate

37.5

84 0

64

12 0

64 0

16

75.0

50 0

3

16

48 0

1

31.500

Negative

Negative

Separate

43.3

832

56

80

640

56

85.0

509

3

25

480

1

36.000

Negative

Negative

Separate

31.5

80 0

96

48

64 0

16

60.0

52 5

2

33

48 0

10

25.175

Negative

Negative

Separate

Mode

Timing

Q R S

P

O

Video

Sync Sync

Horizontal Vertical

C D E

P

O

B

A

Video

Sync Sync

Separate Sync

C D

A O

E

B P

Video

Sync Sync

Video

Q R S

A : Line t ime total B : Horizontal sync w idth O : Frame t ime total P : Vert ical sync w idth

C : Back porch D : Act ive t ime Q : Back porch R : Act ive t ime

E : Front porch S : Front porch


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2-4 LTM 295W / LTM 405W

68.7

1456

128

144

1152

32

75.1915

3

39

870

3

100.000

Negative

Negative

Separate

67.5

1600

12 8

25 6

1152

64

75.090 0

3

32

86 4

1

108.000

Positive

Positive

Separate

60.2

1328

96

176

1024

32

74.9804

3

30

768

3

80.000

Negative

Negative

Separate

MAC/74 Hz

1024 x 768

VESA/75 Hz

1152 x 864

MAC/75 Hz

1152 x 870

MAC/60 Hz

1024 x 768

48.8

1312

96

12 8

1024

64

60.081 3

6

33

76 8

6

64.000

Negative

Negative

Separate

46.9

1056

80

16 0

80 0

16

75.062 5

3

21

60 0

1

49.500

Positive

Positive

Separate

fH (kHz)

A sec

B sec

C sec

D sec

E sec

fV (Hz)O msec

P msec

Q msec

R msec

S msec

ClockFreq.(M Hz)

Polarity

H.Sync

V.Sync

Remark

MAC/74 Hz

832 x 624

XGA/60 Hz

1024 x 768

XGA/70 Hz

1024 x 768

XGA/75 Hz

1024 x 768

XGA/85 Hz

1024 x 768

SVGA/75 Hz

800 x 600

SVGA/85 Hz

800 x 600

Table 2-2 Timing Chart (continued)

53.7

1048

64

152

800

32

85.1631

3

27

600

1

56.250

Positive

Positive

Separate

49.7

1152

64

22 4

83 2

32

74.666 7

3

39

62 4

1

57.284

Negative

Negative

Separate

48.4

1344

136

160

1024

24

60.0806

6

29

768

3

65.000

Negative

Negative

Separate

56.5

1328

13 6

14 4

1024

24

70.180 6

6

29

76 8

3

75.000

Negative

Negative

Separate

60.0

1312

96

176

1024

16

75.0800

3

28

768

1

78.750

Positive

Positive

Separate

68.7

1376

96

20 8

1024

48

85.080 8

3

36

76 8

1

94.500

Positive

Positive

Separate

Mode

Timing

Q R S

P

O

Video

Sync Sync

Horizontal Vertical

C D E

P

O

B

A

Video

Sync Sync

Separate Sync

C D

A O

E

B P

Video

Sync Sync

Video

Q R S





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LTM 295W / LTM 405W 2-5

Q R S

P

O

Video

Sync Sync

Horizontal Vertical

C D E

P

O

B

A

Video

Sync Sync

Separate Sync

C D

A O

E

B P

Video

Sync Sync

Video

Q R S




fH (kHz)

A sec

B sec

C sec

D sec

E sec

fV (Hz)

O msec

P msec

Q msec

R msec

S msec

ClockFrequency(M Hz)

Polarity

H.Sync

V.Sync

Remark

SUN/76 Hz

1280 x 1024

SXGA/60 Hz

1280 x 1024

SUN/76 Hz

1152 x 900

71.7

1472

96

208

1152

16

76.0

943

8

33

900

2

105.561

Negative

Negative

Separate

SUN/66 Hz

1152 x 900

61.8

1528

12 8

20 8

1152

40

66.0

93 7

4

31

90 0

2

94.500

/ +

/ +

Separate

64.0

1688

112

248

1280

48

60.0

1066

3

38

1024

1

108.000

Positive

Positive

Separate

74.4

1680

160

208

1280

32

70.0

1063

3

36

1024

0

125.000

Negative

Negative

Separate

80.0

1688

144

248

1280

16

75.0

1066

3

38

1024

1

135.000

Positive

Positive

Separate

81.1

1664

64

28 8

1280

32

76.1

1066

8

32

1024

2

135.000

Negative

Negative

Separate

SXGA/75 Hz

1280 x 1024

78.1

1728

192

192

1280

64

72.0

1085

3

55

1024

3

135.000

Negative

Negative

Separate

HP/72 Hz

1280 x 1024

NCD/70 Hz

1280 x 1024


Mode

Timing


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2-6 LTM 295W / LTM 405W

Q R S

P

O

Video

Sync Sync

Horizontal Vertical

C D E

P

O

B

A

Video

Sync Sync

Separate Sync

C D

A O

E

B P

Video

Sync Sync

Video

Q R S





fH (kHz)

A sec

B sec

C sec

D sec

E sec

fV (Hz)O msec

P msec

Q msec

R msec

S msec

ClockFrequency

(M Hz)

Polarity

H.Sync

V.Sync

Remark

UXGA/70Hz

1600 x 1200

UXGA/65Hz

1600 x 1200

81.25

2160

192

304

1600

64

651250

3

46

1200

1

175.500

/ +

/ +

Separate

UXGA/60Hz

1600 x 1200

75

2160

192

304

1600

64

601250

3

46

1200

1

162.000

/ +

/ +

Separate

87.5

2160

192

304

1600

64

701250

3

46

1200

1

189.000

/ +

/ +

Separate

80.038

2124

160

308

1600

56

64.4431242

3

38

1200

1

170.000

/ +

/ +

Separate

74.52

2592

208

336

1920

128

601242

3

38

1200

1

193.156

Negative

Positive

Separate

WUXGA2/60Hz

1920 x 1200

89.286

2240

256

368

1600

16

66.9311334

10

44

1200

80

200.000

/ +

/ +

Separate

SUN/66 Hz

1600 x 1200

NCD/64Hz

1600 x 1200

Mode

Timing


10/89


LTM 295W / LTM 405W 2-7

Table 2-5 DTV Timing chart

Timing No.Originator

Mode Name

Resolution (HxV)

1274M

1080i/60iHz

1920x1080

2296M

720p/60Hz

1280x720

3293M

480p/60Hz

720x483

HORIZONTALFrequencyTotal timeBorder (L / R)Data timeFront porchSync. widthBack porch

Sync. polarity

33.750kHz29.630s

0.000s25.859s

0.593s0.593s2.586s

-

-

45.000kHz22.222s

0.000s17.239s

0.943s0.539s3.502s

-

31.469kHz31.778s0.000s26.667s0.593s2.333s2.185s

-VERTICALFrequencyTotal timeBorder (T / B)Data timeFront porchSync. widthBack porchSync. polarity

30Hz33.333ms

0.000ms

0.059ms0.148ms0.444ms

-

60Hz16.667ms

0.000ms16.000ms

0.111ms0.111ms0.444ms

-

60Hz16.683ms

0.000ms15.349ms

0.191ms0.191ms0.953ms

-

Dot Clock 75MHz 75MHz 27MHz

2-4 DTVTiming Chart


11/89

Memo

2 Product Specifications

2-8 LTM 295W / LTM 405W

CONFIDENTIAL


12/89

LTM 295W / LTM 405W 3-1

CONFIDENTIAL

3 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for theLTM295W/LTM405W monitor.

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

3-1 Disassembly

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.

1. Remove 4 screws of the cover rear.

2. Remove the stand from LCD-TV.


13/89

3 Disassembly and Reassembly

3-2 LTM 295W / LTM 405W

CONFIDENTIAL3. Remove 4 screws of the cover rear.

4. Pull the cover rear.

3-2 Reassembly

Reassembly procedures are in the reverse order of Disassembly procedures.


14/89

CONFIDENTIAL

LTM 295W / LTM 405W 4-1

4 Alignments and Adjustments

This section of the service manual explains how to use the DDC JIG to adjust the black, red, green, and bluelevels of the FPD when you replace the AD Board, and how to update the microprocessor when youchange the Panel or Lamp(s).

4-1 General Alignment Instuction

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

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

2. Use the specified test equipment or its equivalent.

3. Correct impedance matching is essential.

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

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

test result.

5. Connect the TV only to an DC power source with voltage and frequency as specified on

the backcover nameplate.

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

that the power cord is disconnected before replacing any parts.

7. To protect aganist shock hazard,use an isolation transform.


15/89

Memo

4 Alignments and Adjustments

4-2 LTM 295W / LTM 405W

CONFIDENTIAL


16/89

CONFIDENTIAL

LTM 295W / LTM 405W 5-1

5 Troubleshooting

29:Does proper DC 28 V appear

at DC jack connected to CN28?40:Does proper DC 28 V appearat DC jack connected to CN29?

Check SM PS PCB and A dapter.

Yes

No

Does proper DC 5 V appear atPin 17 of CN201?

Check CN201 and related circuit.

Check IC963, IC906 and IC905.

Yes

No

Does proper DC 3.3 V

appear at Pin 2 of IC953,IC954, IC956 and IC957?

Check IC953, IC954, IC956 and IC957 .

Yes

No

Does proper DC 2.5 V appear at

Pin 2 of IC961 and IC964?Check IC961 and IC964.

Yes

No

Does proper DC 5 V appear atPin 2 of IC952, IC955 and IC 958?

Check IC952, IC955 and IC 958.

Yes

No

5-1 No Power


17/89

CONFIDENTIAL5 Troubleshooting

5-2 LTM 295W / LTM 405W

5-2 No Video (CVBS, S-Video)

Pow er indicator is green

Does the signal appear at

Pin 5, 9, 11 and 36 of IC1?Check IC1.

Yes

No

Does the clock pulse appear at

Pin 6, 13 and Pin 69, 70 of IC302?Check IC302 and related circuit.

Yes

No

Does the colck pluse

appear at R812, R813 andH/ V Sync pulse of IC801?

Check related circuit of IC801.

Yes

No

Replace LCD Panel.


18/89


LTM 295W / LTM 405W 5-3

5-3 No Picture (PC Signal [Analog])

Check Pin 22 and 24 of CN201. Check CN201 and related circuit.

Yes

No

Check Pin 66 and 67 of CN203. Check IC203 and related circuit.

Yes

No

Does the colck pluse

appear at R619, R621 andH/ V Sync pulse of IC603?

Check IC603 and related circuit.

Yes

No

IC901 and IC903 and replace it.


19/89


5-4 LTM 295W / LTM 405W

Does the signal appear atPin 47, 48, 50, 51, 53, 54, 56,

57 and 67 of IC503?Check IC503 and related circuit.

Yes

No

Check Pin 10 a nd 13 of IC504? Check IC504 and related circuit Q501.

Yes

No

Does the signal appear atL502, L503, L504 and L505?

Replace L502, L503, L504 and L505.

Yes

No

29 :Check Speaker and CN2.40 :Check Speaker and CN2.

5-4 No Sound (RF, PC, Video, Component)


20/89


LTM 295W / LTM 405W 5-5

5-5 No Picture (DTV)

29 :Does the signal appear at

Pin 16, 18 and 20 of CN103?40 :Does the signal appear at

Pin 16, 18 and 20 of CN3?

Check re lated circuit andinput signal of connector.

Yes

Yes

No

Dose the signal appear atPin 43, 48 and 54 of IC404?


Yes

No

Dose the signal appear at

Pin 15, 19 and 21 of IC403?Check IC403 and related circuit.

Yes

No


Pow er inductor is green.


21/89

Memo

5 Troubleshooting

5-6 LTM 295W / LTM 405W

CONFIDENTIAL


22/89

LTM 295W / LTM 405W

6 Exploded View and Parts List

6-1 LTM295W


23/89

6-2 LTM405W

6 Exploded View & Parts List

6-2


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CONFIDENTIAL

8 Block Diagram

LTM 295W / LTM 405W 8-1

TA8851

RF

CVBS

S-Video

DVD

input

DTV

input

Pcdigital

PCanalog

3DCombfilter

VSP9437

EPA3032

MUX

MUX

Sil161B

AD9883

LV

DS

AD9883

MDIN100

(HDDeinterlacer)

Scaler

Jac

kAsm

Scaler

JackAsm

ALTERA

MSP

3451G

PC

Audio

V

ideo

A

udio

RF

Audio

TA1101B

Speaker


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CONFIDENTIALMemo

8 Block Diagrams

8-2 LTM 295W / LTM 405W


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LTM 295W / LTM 405W

CN901NC

GND

NC

NC

NC

BL_ENNC

GND

GND

GND

GND

GND

5V

CHDOWN

VOLUP

LEDCHUP

VOLDOWN

SOURCE

MENU

GND

GND

GND

IRINT

LED_

GREEN

LED_

RED

14V

9V5V

14V

GND

POWERON

GND

VID_

SCLK

VID_

DATA

GND

QSS_

IF1

GND

QSS_

IF2

GND

CVBS1

GND

CVBS2

GND

GND

VCR

GND

GND

SV_

C

GND

SV_

Y

GND

GND

PR2

GND

PB2

GND

PB3

GND

Y3

GND

GND

RCA_

R

RCA_

L

GND

COM1_

R

COM_

L

GND

Y2

GND

GND

PR3

SPEAKERLEFT+

SPEAKERLEFT_

GND

SPEAKERRIGHT+

SPEAKERRIGHT-

GND

HPDL

HPDR

GND

LINE_

OUTL

LINE_

OUTR

WOOFER

LOWP

OWERMODE

GND

COM2_

R

COM2_

L

CN903

AC

GND

NC

NC

NC

BL_

ENNC

GND

GND

GND

GND

CN954GND

GND

GND

GND

GND

14V

14V

14V

14V

14V

CN953GND

GND

GND

GND

GND

14V

14V

14V

14V

14V

CN950

CN601 CN501

CN3 CN1

28V

28V

28V

GND

GND

GND

28V28V

CN952

GND

GND

GND

GND

GND

14V

14V

14V

14V

14V

GND

GND

GND

GND

GND

14V

14V

14V

14V

14V

CN951

9 Wiring Diagram


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9 Schematic Diagrams

9-2

Memo


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COM2_R

DTV_DATA

DTV_SCLK

MSP_INT

QSS_IF1

QSS_IF2

RCA_L

RCA_R

J2WRn

MCA(0:17)

MCAD(0:7)

MCALE

MC_DATA

MC_SCLK

MSPPW

MSP_INT

RESETn

V_INT

WAIR_SEL

AUDIO

A_ST_BY

COM1_L

COM1_R

COM2_L

V_INT

YIN_A

MICOM

A_SHUTDWNB

CREFCLK1

CREFCLK2

DPMSLED1

IRINT

J1RDn

J1WRn

J2RDn

CVBS_B

DVD_PB

DVD_PR

DVD_Y

MC_DATA

MC_SCLK

RESET_V

VCLK

VHS1

VID_DATA

VID_ONB

VID_SCLK

VSP_FIELD

VSP_SEL

VVS1

VYO(0:15)

D_CLK

D_DE

D_HSYNC

D_VSYNC

PAB(0:7)

PAG(0:7)

PAR(0:7)

PCB(0:7)

PCG(0:7)

PCR(0:7)

PC_HS

PC_VS

TMDS_OE

VID_DATA

VID_SCLK

VIDEO

CIN_A

MCALE

PBB(0:7)

PBG(0:7)

PHS

PN

PSH

PVS

RESETn

RGB(0:47)

VSP_SEL

VSYNC_B

PC_IN

AD_CLK

AD_HSYNC

CHK_DSUB

DBB

DBG

DBR

DTV_SOGOUT

DTV_VSYNC

D_SELECT

FLES

HSYNC_B

J2RDn

J2WRn

JDE

JHSYNC

JSHFCLK

JVSYNC

MCA(0:17)

MCAD(0:7)

HSYNC_B

RESET_V

VCLK

VHS1

VSP_FIELD

VSYNC_B

VVS1

VYO(0:15)

VID

A_ST_BY

BK

CLK_B

CREFCLK2

DAB

DAG

DAR

PR3

VID_ONB

Y2

Y3

DE-INT

B_OUT(0:7)

CLK_B

DTV_DATA

DTV_DCLK

DTV_FIELD

DTV_HSYNC

DTV_PB(0:7)

DTV_SCLK

DTV_SEL

DTV_VSYNC

DTV_Y(0:7)

G_OUT(0:7)

DTV_FIELD

DTV_HSYNC

DTV_PB(0:7)

DTV_SCLK

DTV_SOGOUT

DTV_VSYNC

DTV_Y(0:7)

DVD_PB

DVD_PR

DVD_Y

D_SELECT

MC_DATA

MC_SCLK

PB2

PB3

PR2

DTV_A

DTV_DATA

DTV_DCLK

VID_DATAVID_SCLK

WAIR_SEL

Y2

Y3

YIN_A

COM1_R

COM2_L

COM2_R

CVBS_B

IRINT

LED_GREEN

LED_RED

PB2

PB3

POWERON

PR2

PR3

QSS_IF1

QSS_IF2

RCA_L

RCA_R

PAG(0:7)

PAR(0:7)

PCB(0:7)

PCG(0:7)

PCR(0:7)

PC_HS

PC_VS

POWERON

RESET_V

RESETn

RGB(0:47)

TMDS_OE

VID_ONB

AV_IN

CIN_A

COM1_L

D_DE

D_HSYNC

D_VSYNC

J1RDn

J1WRn

JDE

JHSYNC

JSHFCLK

JVSYNCLED_GREEN

LED_RED

LVDS_EN

MAINPW

MCA(0:17)

MCAD(0:7)

MCALE

PAB(0:7)

PC

AD_CLK

AD_HSYNC

A_ST_BY

BL_EN

CHK_DSUB

CREFCLK1

DECPWDPMSLED1

DTV_SEL

D_CLK


10-1 Apollo-II_Top Parts Schematic Diagram

LTM 295W / LTM 405W


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1 IC103 #20

CH1 RMS = 540V

LTM 295W / LTM 405W


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LTM 295W / LTM 405W


2 IC201 #22

CH1 RMS = 3.80V

3 IC201 #24

CH1 RM S = 4.12V

4 IC203 #67

CH1 RM S =2.92V

5 IC203 #66

CH1 RM S = 3.32V


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LTM 295W / LTM 405W


6 IC603 #613

CH1 RMS = 3.96V


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LTM 295W / LTM 405W


7 IC801 #R815

CH1 RM S = 3.96V


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10-12

10-8 DTV & DVD Parts Schematic Diagram

100nF

C420C404100nF

C407100nF

0R420

16V

47uFC446

R421

C418

100

4

5 6

7 8

100nF

RA405

1 23

C444

4.7pF

100nF

C419

16

C401

10.000000N

5

6

7

8 9

10

11

12

1314

15

FST3257MX

IC406

1

2

34

U4691

B

C410100n

BD403SBK201209T-800Y-S

R418 0

470KR414

75 R416

R413

75

100nF

C422

C448

10nF

R40833

B

C424

50V100nF

1 2

3

BD406SBK201209T-800Y-S

+5V_DTV

D402

100nF

C421

1AB2

3C

C442

4.7pF

SGM32F1E104-2A

FT405

D

5E

6F

+3.3_DTV_ADC

C428

120uF6.3V

ADP3330ART-3.3

1A

2B

3C

4

1 2

3 4

5 6

7 8

IC401

20

VCC

VD1IN

12 13

VD2IN

14

VDOUT

VIDEOIN18

RA406

8

GND4

10

19GOUT

24HD1IN

23

HD2IN

HDOUT

22

2

HDSYNC

1

RED1IN

7

RED2IN

21REDOUT

SYNCOUT17

IC403

5BLUE1IN

BLUE2IN

11

BLUEOUT

15

16CTL

3

G1IN

9

4

GND

6GND2

GND3

BA7657F

J10

K11

L12

M13

N14

MO

50V

1nFC426

AIN1

BIN2

CIN3

DIN4

EIN5

FIN6

GIN7

H 8I 9

4.7pF

C443

74LVX74MTCX

IC405

+3.3_DTV_D

C427

1nF

50VMO

1

C44547uF

16V

TP2471

U862

1

D405

1 2

3

U320

1 A B2

3C

C4381nF

16V

47uF

C437

SGM32F1E104-2A

FT403

10nFC434

TP2441

10nFC431

IC402

A1

B2

C3

D 4

E 5

F 6

ADP3330ART-3.3

R412

75

C406100nF

R41033

R40933

C433

470pF

100nFC409

100nFC405

1nF

C439

C450

10nF

C441

1nF

TP2451

VDD111

GREEN36

GREEN45

GREEN54

GREEN63

GREEN72

GND320

GREEN09

GREEN18

GREEN27

GND210

BLUE415

BLUE514

BLUE613

BLUE712

GND11

BLUE019

BLUE118

BLUE217

BLUE316

2

3 4

5 6

7 8

RA404

1

16V

47uF

C435

330K1/16W

R404

L401

R403

1/16W100K

C

SBK201209T-800Y-SBD401

B

+3.3_DTV_PLL

SGM32F1E104-2A

FT404

1AB

2

3

+5V_DTV

SBK201209T-800Y-SBD405

B

1 2

3

100nF50V

C423

C454

D401

100nF

1 2

3

C436

47uF

16V

BD404SBK201209T-800Y-S

B

D406

D403

1 2

3

R402

1/16W

330K

A1 2B

C3

100K

1/16W

R401

C44747uF

16V

FT402SGM32F1E104-2A

C408100nF

C402

10.000000

+3.3_DTV_ADC

10nF

C449

+5V_DTV

BD402SBK201209T-800Y-S

B

1 2

3 4

5 67 8

TP2461

RA403

C43210nF

75

33

R432

33

R429R427

33

R428

R422 0

U8631

R431

75

16V

10uF

+5V_DTV

C425

C429

10nF

C4

10

D404

1 2

3

D_

Y

R430

75

DTV_SCLK

DTV_DATA

VID_ONB

GR2IN

GREEN

RED

D_

PR

DVD_PB

DVD

_PB

DVD_PR

DVD_PB

DVD_Y

Y3

PB3

PR3

Y2

PB2

PR2

DTV

_SOGOUT

MC_SCLK

MC_DATA

D_SELECT

SOG

D_PB

BLUE

D_Y

D_PR

D_

PB

DVD_Y

DVD

_Y

DVD_PR

DVD

_PR

DTV

_HSYNC

DTV_PB(0:7)

DTV_Y(5)DTV_Y(4)

DTV_Y(3)

DTV_Y(2)

DTV_Y(1)

DTV_Y(0)

DTV

_Y(0:7)

DTV_Y(7)

DTV_Y(6)


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LTM 295W / LTM 405W


8 IC404 #67

CH1 RM S =3.40V

9 IC404 #48

CH1 RM S = 3.48V


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LTM 295W / LTM 405W


10 IC503 #28 11 IC503 #67


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12 CN1 #1


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13 IC905 #2

CH1 RMS =14.1V


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Samsung Lcd Ltm295wx

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