Samsung 540N, 540B, 740N, 740B, 740T Service manual

...
4.7 (3)

LCD-Monitor

Chassis

Model

LS15HAA

540N

LS15HAB

540B

LS17HAA

740N

LS17HAB

740B

LS17HAT

740T

LS19HAB

940B

LS19HAT

940T

LS19HAA

940N

SERVICE Manual

 

 

 

LCD Monitor

Fashion Feature

-Lustrous/Colorful Appearance (Design) -Integrated UI applied

-Built-in Scaler Sync Separator

-Connectivity : Analog (15p Dsub), Dual (24p DVI-D)

-Power Consumption : 17"(34W), 19"(38W) -DPMS : under 1 W (230Vac)

1 Precautions

1 Precautions

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

1-1 Safety Precautions

1-1-1 Warnings

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

2.Disconnect the AC power and DC power jack before servicing.

1-1-2 Servicing the LCD Monitor

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

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

1-1-3 Fire and Shock Hazard

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

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

2.Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, 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 system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

Figure 1-1. Leakage Current Test Circuit

4.With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch first 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 identified 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, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate.

1-1

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 conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.

1-2-1 General Servicing

Precautions

1.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.

2.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.

3.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.

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

5.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 megohm.

6.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.

1-3 Static Electricity 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 field-effect transistors. The following techniques will reduce the incidence of component damage caused by static electricity.

1.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 monitor.

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

3.Do not use freon-propelled chemicals. These can generate 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. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

6.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.

7.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.

8.Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.

1-2

1 Precautions

1-4 Installation Precautions

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

2.Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.

3.Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.

4.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 fire or electric shock.

5.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 fire or electric shock.

6.Keep the antenna far away from any high-voltage cables and install it firmly. Contact with the highvoltage cable or the antenna falling over may cause fire or electric shock.

7.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 fire.

1-3

1 Precautions

Memo

1-4

2 Product Specifications

2 Product Specifications

2-1 Fashion Feature

-Develop Cost Effective Model

-LCD Monitor Standardization/Develop Concept-leading Product

-Develop New Design & Advanced Stand

-Apply integrated GUI for the user's convenience

2-2 LS15HAA/LS15HAB Specifications

Item

 

Description

 

 

 

LCD Panel

TFT-LCD panel, RGB vertical stripe, normally black transmissive,

 

15-Inch viewable, 0.264 (H) x 0.264 (V) mm pixel pitch

 

 

 

 

Scanning Frequency

Horizontal : 30 kHz ~ 81 kHz (Automatic)

 

 

 

Vertical : 56 Hz ~ 75 Hz

 

 

 

Display Colors

16.7 Million colors

 

 

 

 

 

 

 

 

Maximum Resolution

Horizontal : 1280 Pixels

 

 

 

 

Vertical : 1024 Pixels

 

 

 

 

 

 

 

 

Input Video Signal

±

 

 

 

Input Sync Signal

Type : Seperate H/V sync, Composite H/V, Sync-on-Green (option), automatic

 

synchronization without external switch of sync type

 

Level : TTL level

 

 

 

Maximum Pixel Clock rate

135 MHz

 

 

 

 

 

 

 

 

Active Display

 

 

 

 

Horizontal/Vertical

338 ± 3 mm / 270 ± 3 mm

 

 

 

 

 

 

 

AC power voltage & Frequency

AC 90 ~ 264 Volts, 60/50 Hz ± 3 Hz

 

 

 

 

 

 

 

Power Consumption

40W (Max)

 

 

 

 

 

 

 

 

Dimensions

Simple-Stand

 

 

 

 

 

 

 

Set (W x D x H)

337.5 x 60.2 x 264.5 mm(Without Stand)

 

 

 

337.5 x 200.0 x 336.8 mm(With Stand)

 

 

 

HAS-Stand

 

 

 

 

 

 

 

 

337.5 x 60.2 x 264.5 mm(Without Stand)

 

 

 

337.5 x 180.0 x 333.8 mm(With Stand)

 

 

 

 

 

Weight (Set)

2.8 kg (Simple-Stand) / 3.7 kg(HAS-Stand)

 

 

 

 

 

 

Environmental Considerations

°

°

°

°

 

°

°

°

°

 

 

 

 

 

- Designs and specifications are subject to change without prior notice.

2-1

2 Product Specifications

2-3 LS17HAA/LS17HAB/LS17HAT Specifications

Item

 

Description

 

 

 

 

 

 

LS17HAA/LS17HAB

 

 

LS17HAT

 

 

 

LCD Panel

TFT-LCD panel, RGB vertical stripe, normally black transmissive,

 

17-Inch viewable, 0.264 (H) x 0.264 (V) mm pixel pitch

 

 

 

 

Scanning Frequency

Horizontal : 30 kHz ~ 81 kHz (Automatic)

 

 

Vertical : 56 Hz ~ 75 Hz

 

 

 

 

 

 

 

 

Display Colors

16.7 Million colors

 

 

 

 

 

 

 

 

Maximum Resolution

Horizontal : 1280 Pixels

 

 

 

 

Vertical : 1024 Pixels

 

 

 

 

 

 

 

 

Input Video Signal

±

 

 

 

 

 

 

Input Sync Signal

Type : Seperate H/V sync, Composite H/V, Sync-on-Green (option), automatic

 

synchronization without external switch of sync type

 

Level : TTL level

 

 

 

Maximum Pixel Clock rate

135 MHz

 

 

 

 

 

 

 

 

Active Display

 

 

 

 

Horizontal/Vertical

338 ± 3 mm / 270 ± 3 mm

 

 

 

 

 

 

 

AC power voltage & Frequency

AC 90 ~ 264 Volts, 60/50 Hz ± 3 Hz

 

 

 

 

 

 

 

Power Consumption

40W (Max)

 

 

 

 

 

 

 

 

Dimensions

Simple-Stand

 

 

 

Set (W x D x H)

 

 

 

 

366.0 x 60.2 x 301.4 mm(Without Stand)

 

 

 

 

366.0 x 200.0 x 379.3 (With Stand)

 

 

 

 

 

 

 

 

HAS-Stand

 

HAS-Stand(LS17HAT)

 

366.0 x 60.2 x 301.4 mm(Without Stand)

 

362.1 x 60.2 x 298.2 mm(Without Stand)

 

366.0 x 200.0 x 391.2 mm(With Stand)

 

407.6 x 200.0 x 408.0 mm(With Stand)

 

 

 

 

Weight (Set)

4.6 kg (Simple-Stand) / 4.8 kg(HAS-Stand)

5.8 kg

 

Environmental Considerations

°

°

°

°

 

°

°

°

°

 

 

 

 

 

- Designs and specifications are subject to change without prior notice.

2-2

 

 

 

 

2 Product Specifications

2-4 LS19HAB/LS19HAT Specifications

 

 

 

 

 

 

 

Item

 

Description

 

 

 

 

 

 

LS19HAB

 

 

LS19HAT

 

 

 

LCD Panel

TFT-LCD panel, RGB vertical stripe, normally black transmissive,

 

19-Inch viewable, 0.264 (H) x 0.264 (V) mm pixel pitch

 

 

 

 

Scanning Frequency

Horizontal : 30 kHz ~ 81 kHz (Automatic)

 

 

Vertical : 56 Hz ~ 75 Hz

 

 

 

 

 

 

 

 

Display Colors

16.7 Million colors

 

 

 

 

 

 

 

 

Maximum Resolution

Horizontal : 1280 Pixels

 

 

 

 

Vertical : 1024 Pixels

 

 

 

 

 

 

 

 

Input Video Signal

±

 

 

 

 

 

 

Input Sync Signal

Type : Seperate H/V sync, Composite H/V, Sync-on-Green (option), automatic

 

synchronization without external switch of sync type

 

Level : TTL level

 

 

 

Maximum Pixel Clock rate

135 MHz

 

 

 

 

 

 

 

 

Active Display

 

 

 

 

Horizontal/Vertical

338 ± 3 mm / 270 ± 3 mm

 

 

 

 

 

 

 

AC power voltage & Frequency

AC 90 ~ 264 Volts, 60/50 Hz ± 3 Hz

 

 

 

 

 

 

 

Power Consumption

40W (Max)

 

 

 

 

 

 

 

 

Dimensions

Simple-Stand

 

HAS-Stand

 

Set (W x D x H)

407.6 x 65.4 x 335.0 mm(Without Stand)

 

403.6 x 65.4 x 331.9 mm(Without Stand)

 

407.6 x 217.0 x 421.5 (With Stand)

 

403.2 x 200.0 x 406.4 mm(With Stand)

 

 

 

 

 

Weight (Set)

4.6 kg

 

4.9 kg

 

Environmental Considerations

°

°

°

°

 

°

°

°

°

 

 

 

 

 

 

 

 

 

 

- Designs and specifications are subject to change without prior notice.

2-3

2 Product Specifications

2-3 Option Specification

 

 

Item

Item Name

CODE.NO

Remark

 

Quick Setup Guide

BH68-00376L

 

 

Warranty Card

 

 

 

(Not available in all loca-

BH68-70438A

 

 

tions)

 

 

 

User's Guide,

 

 

 

Monitor Driver,

 

 

 

Natural Color software,

BN59-00390Q

 

 

MagicTune¢â software

 

 

 

MagicRotation software

 

 

 

D-Sub(15 Pin)

BN39-00244B

 

 

Cable

 

 

 

 

 

Power Cord

3903-000042

 

 

DVI Cable

BN39-00341A

Sold separatelys

2-4

3 Alignments and Adjustments

3 Alignments and Adjustments

This section of the service manual explains how to use the RS232 JIG.

This function is needed for AD board change and program memory (IC110) change.

3-1 Required Equipment

The following equipment is necessary for adjusting the monitor:

Computer with Windows 95, Windows 98, or Windows NT.

MTI-2031 DDC MANAGER JIG

3-2 Automatic Color Adjustment

To input video, use 16 gray or any pattern using black and white.

1.Select english for OSD language.

2.Press the “ (Enter/Source)” key for 5 seconds.

3-3 DDC EDID Data Input

1.Input DDC EDID data when replacing AD PCB.

2.Receive/Download the proper DDC file for the model from HQ quality control department. Install the below jig (Figure 1) and enter the data.

MTI-2031

DDC Manager

Parallel Connector

(25P Cable)

Connect Monitor

(Signal Cable)

Figure 1.

3-4 OSD Adjustment When Replacing Panel

1.Adjust brightness and contrast to 0. Then, press the (Enter/Source) key for 5 second. Service function OSD will appear on screen.

2.Press the + key to place the cursor on the panel. Press the menu key for 5 seconds.

3-5 OSD Adjustment When Replacing Lamp Only

1.Adjust brightness and contrast to 0. Then, press the exit key for 5 seconds. Service function OSD will appear on the screen.

2.Press the + key. Select upper lamp and press the menu key for 5 seconds. Then, select lower lamp and press the menu key for 5 seconds.

-Note : Please be sure to read the following instructions for details on service function.

3-1

3 Alignments and Adjustments

3-6 Service Function Spec.

3-6-1 How to Display Service Function OSD

1.The value for brightness and contrast should be changed to zero.

2.Within 5 seconds, press the (Enter/Source) key.

3.Service function OSD will be displayed.

-If you want to disable the service function OSD, you will have to power off.

Panel Information

Softward Version

Checksum

Figure 2. The example of service function OSD

The service function OSD is based on a grid of 29 columns x 12 rows.

The service function OSD consists of panel information, software version and MICOM checksum.

3-6-2 How to Control Service Function OSD

1.With the panel selected on OSD, whenever you press the right key, the base color will change to blue from “Panel” to “Upper Lamp”, “Lower Lamp”.

Figure 3.

3-2

3 Alignments and Adjustments

3-6-3 How to Control Service Function OSD

After change the panel or lamp, you must reset service function OSD.

The case of panel change

After changeing the panel, press the menu key within 5 seconds,.

Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).

Figure 4.

3-6-4 How to Control Service Function OSD

In the case of Upper Lamp or Lower Lamp change

After changeing the Upper Lamp or Lower Lamp,

1.Select the Upper Lamp or Lower Lamp

2.Press the Menu key within an 5 seconds.

Then, Ch. No and time will be reset to zero (selected item only).

Figure 5, 6.

3-3

3 Alignments and Adjustments

3-7 How to execute DDC

1

2

3

4

1.Open file.

2.Select Port #1.

3.Select DDC file. 4.Click, "Next" Button

5

5. Type in the monitor serial number and press Enter.

*Repeat this step 2 to 5 times in digital inputs after the analog input.

3-4

4 Troubleshooting

4 Troubleshooting

4-1 No Power(LS15HAA/LS15HAB)

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

When Pin 4 of CN600 is 0V

 

 

No

 

 

does proper DC 13V, 5V

 

 

Change IP Board.

 

 

 

 

 

appear at Pin 1, 2 and 6, 7 of

 

 

 

 

 

 

 

 

 

CN600 separately?

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When Pin 3 of IC602 is DC 5V

 

 

No

 

 

 

Check IC602 and related circuit.

does proper DC 3.3V appear at

 

 

 

 

 

 

 

 

 

 

 

Pin 2 of IC602?

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When pin1 of IC600 is DC 5V

 

 

No

 

 

 

Check IC600 and related circuit.

does proper DC3.3V appear at

 

 

 

 

 

 

 

Pin3 of IC600?

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace AD Board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-1

4 Troubleshooting

4-2 No Power(LS17HAA/LS17HAB/LS17HAT/LS19HAA/LS19HAT)

 

Yes

 

*

When Pin 4 of CN600 is 0V

does proper DC 13V, 5V

No

Change IP Board.

appear at Pin 1, 2 and 6, 7 of

 

 

 

CN600 separately?

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

When Pin 4 of IC600 is DC 0.5V

No

 

Check IC600 and related circuit.

does proper DC 0.5V appear at

 

 

 

 

Pin 5 and 6 of IC600?

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

When Pin 2, 3 of IC601 is

No

 

 

DC 3.3V does proper DC 4.3V

Check IC601 and related circuit.

 

 

appear at Pin 1 of IC601?

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

When Pin 2, 3 of IC601 is

No

 

 

DC 4.3V does proper DC 2.5V

Check IC601 and related circuit.

 

 

appear at Pin 4 of IC601?

 

 

 

 

*0V means power on state.

When the monitor work well except DPMS and power switch off,

0V should be applied to number 4 of CN600.

4-2

4 Troubleshooting

4-3 No Video (ANALOG)

Check signal cable connection and power.

1 X400 oscillate properly?

Yes

Is there R, G, B input at

R101, R103 and R105?

Yes

Is there Hsync, Vsync waveform

2 3

at Pin 100, 1 of IC 400?

Yes

Is there Hsync, Vsync waveform

2 3

at Pin 41, 42 of IC 200?

Yes

Does the output signal appear at Pin 17~20, 22~27 of CN400?

Yes

There are DC 5V at Pin 1, 2 and 3 of CN400?

Yes

Replace LCD Panel.

No

Replace or check related circuit.

No

Check input part.

No

Check IC400 and related circuit.

No

Check IC200 and related circuit.

No

Check IC400 and related circuit.

No

Check PANEL_EN SIGNAL at R236

is High(On:High) and BL_EN signal

 

 

 

at R605(ON:Low) is Low

 

 

4-3

4 Troubleshooting

WAVEFORMS

1

2

3

 

 

 

C403

C405

C406

C404

16V

100nF

C402

80

79

78

77

76

75

74

73

72

71

70

 

 

 

 

 

 

 

GND LVB0M

LVB0P

 

 

LVB1M

LVB1P

LVB2M

LVB2P

LVBCKM

 

 

 

100nF

100nF

100nF

100nF

 

 

 

 

GND

VDDP

 

 

 

16V

16V

16V

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BYPASS

 

 

 

 

 

 

 

81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

82

BUSTYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3.3V_MAIN

83

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C414

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

84

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100nF

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

86

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MO

 

 

 

 

VDDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

87

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

XREF

 

 

 

 

 

 

88

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

89

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDDP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

C416

 

 

 

 

 

 

91

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

18pF

 

 

AD0

 

 

 

92

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AD0

 

 

 

 

 

 

 

 

 

 

 

 

50V

 

 

XREF

 

 

93

 

 

 

 

 

 

 

 

 

 

 

 

NULL

 

 

AD3

 

 

 

AD3

 

 

 

 

 

 

 

 

 

 

 

 

MO

 

 

XREF

 

 

94

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCALER_RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HWRESET

 

 

 

 

 

 

 

 

 

 

 

 

 

XREF

 

 

95

 

 

 

 

 

 

 

 

 

 

 

 

24.0MHz

 

 

XIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XOUT

 

 

 

 

 

 

 

 

 

 

 

 

NULL

X400

1

 

 

 

97

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AVDD_MPLL

 

 

 

 

 

 

 

 

 

 

MO

 

 

 

 

98

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

99

 

 

 

 

 

 

 

 

AVDD DVI

 

 

 

 

 

 

 

 

 

HSYNC0

VSYNC0 GND

 

 

 

 

 

 

 

 

 

 

 

4C-49/SM5H,24MHZ,16PF

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

C418

 

 

 

 

2

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R+

R-

G+

G-

B+

B-

18pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50V

 

 

+3.3V_MAIN

 

 

 

 

1 2 3 4 5 6 7 8 9

10 11

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C423

C417

 

C415

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100nF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100nF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100nF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Troubleshooting

4-4 No Video (DIGITAL)

Check signal cable connection and power.

1 X400 oscillate properly?

Yes

Is there R, G, B input at

4 5 6

R110, R112, R114, R111,

R113 and R115?

Yes

Is there waveform

7

at R11, R117?

Yes

Does the output signal appear at Pin 17~20, 22~27 of CN400?

Yes

There are DC 5V at Pin 1, 2 and 3 of CN400?

Yes

Replace LCD Panel.

No

Replace or check related circuit.

No

Check input part.

No

Check input part.

No

Check IC400 and related circuit.

No

Check the panel EN signal at R222

 

and BLEL signal at R603.

4-5

4 Troubleshooting

WAVEFORMS

1

2

3

4

5

6

7

4-6

4 Troubleshooting

 

 

 

 

 

4

 

5

 

 

6

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAIN

 

 

 

 

 

RX2-

RX1RX0-

RX2+ RX1+

RX0+ RXC+ RXC-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D113

XREF

XREF

XREF

XREF

 

XREF

XREF

XREF

XREF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XREF

XREF

XREF

XREF

XREF

XREF

XREF

XREF

XREF

XREF

 

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D114

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HSYNC IN A

VSYNC IN A

RX2+

RX2-

RX1+

RX1-

RX0+

RX0-

RXC+

RXC

 

 

 

B

1/10W

1/10W

1/10W

1/10W

 

1/10W

1/10W

1/10W

1/10W

 

 

 

 

 

 

 

 

 

 

A 1

22ohm

22ohm

22ohm

22ohm

22ohm

22ohm

22ohm

22ohm

 

 

 

 

 

 

 

 

 

 

 

D100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C108

 

 

2

C

3

R116

R117

R118

R119

R120

R121

R122

R123

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100nF

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D103

 

 

 

 

 

 

 

 

SCL DDC D

 

SDA DDC D

CHK DVI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XREF

XREF

XREF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D105

 

 

 

 

 

 

 

 

 

 

 

+5V_DDC_D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D106

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5V_DDC_D

 

 

C124

330nF

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

MMBD4148SE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A 1

 

 

 

 

 

 

 

 

 

 

 

C2

3

A1

2

C1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UDZS5.6B-T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R125

 

 

 

 

ZD102

 

 

 

 

 

 

 

ZD1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MMQA5V6T3

 

 

 

 

 

 

 

2 B

 

 

 

 

D109

 

 

 

 

 

 

 

 

 

 

 

1K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C

3

 

 

 

 

 

 

 

 

 

 

 

1/16W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

C3

4

A2

5

C4

6

 

 

 

 

 

 

 

 

 

4-7

4 Troubleshooting

Memo

4-8

6 Exploded View & Parts List

5 Exploded View and Parts List

-You can search for updated part codes through ITSELF web site.

URL : http://itself. sec. samsung.co.kr

5-1 LS15HAA

T0003

M0215

M0006

M0014

M0112

M0013

M0107

M0113

M0174

M0006

T0022

M0145

M0003

M0006

CIS

M0013

5-1

5 Exploded View & Parts List

Location

Code.No

Item & Specification

Q'ty

SA/SNA

Remark

 

 

 

 

 

 

T0003

BN96-02387C

ASSY COVER P-FRONT;HA15AS,ABS HB,GR70,SI

1

 

 

 

 

 

 

 

 

M0112

BN63-01993B

COVER-FRONT;HA15AS_BS,ABS,T2.5,338,272,H

1

S.N.A

 

 

 

 

 

 

 

T0022

BN64-00377B

KNOB CONTROL;HA17TS,PC CLEAR,T2.1,9,112,

1

S.N.A

 

 

 

 

 

 

 

M0145

BN96-02474A

ASSY BOARD P-FUNCTION;HAYDN,YWP-HAYDN,FU

1

 

 

 

 

 

 

 

 

M0215

BN07-00236A

LCD-PANEL;CLAA150XP01F,Matisses,6BIT FRC

1

 

 

 

 

 

 

 

 

M0006

BN96-02440A

ASSY SHIELD P-COVER;HA15AS,SECC,328.5*23

1

S.N.A

 

 

 

 

 

 

 

M0107

BN63-02003A

SHIELD-COVER;HA15AS,SECC,T0.8,325,165,AN

1

S.N.A

 

 

 

 

 

 

 

M0014

BN94-00735N

ASSY PCB MAIN-PTZ,TCO99;LS15HAAK*,W/W,CP

1

 

 

 

 

 

 

 

 

M0174

BN44-00130A

IP BOARD;FSP025-2PI02,BI15VS,4.5mA,8.0mA

1

 

 

 

 

 

 

 

 

CIS

BN63-02004A

SHIELD-LAMP;HA15AS,SECC,T0.8,100,150

1

S.N.A

 

 

 

 

 

 

 

M0013

BN96-02388A

ASSY COVER P-REAR;HA15AS,HIPS HB,BK24,AN

1

 

 

 

 

 

 

 

 

M0113

BN61-01581A

BRACKET-VESA;BI17/19BS,SECC,T1.0

2

S.N.A

 

 

 

 

 

 

 

M0006

BN63-01994A

COVER-REAR;HA15AS,HIPS,T2.5,338,272,HB,B

1

 

 

 

 

 

 

 

 

M0003

BN96-01947C

ASSY STAND P;HA17AS/BS,HIPS,BK24,STAND/B

1

 

 

 

 

 

 

 

 

M0013

BN96-02331D

ASSY STAND P-BASE;HA17AS/BS,HIPS,GR70 &

1

 

 

 

 

 

 

 

 

M0006

BN63-01995A

COVER-REAR SUB;HA15AS,HIPS,T2.5,209,290,

1

S.N.A

 

 

 

 

 

 

 

5-2

6 Exploded View & Parts List

5-2 LS15HAB

T0003

M0215

M0006

M0014

M0112

M0013

M0107

M0113

M0174

M0006

T0022

M0415

M0045

M0952

CIS

5-3

5 Exploded View & Parts List

Location

Code.No

Item & Specification

Q'ty

SA/SNA

Remark

 

 

 

 

 

 

T0003

BN96-02387D

ASSY COVER P-FRONT;HA15BS,ABS HB,GR70,SI

1

S.N.A

 

 

 

 

 

 

 

M0112

BN63-01993B

COVER-FRONT;HA15AS_BS,ABS,T2.5,338,272,H

1

S.N.A

 

 

 

 

 

 

 

T0022

BN64-00377B

KNOB CONTROL;HA17TS,PC CLEAR,T2.1,9,112,

1

S.N.A

 

 

 

 

 

 

 

M0145

BN96-02474A

ASSY BOARD P-FUNCTION;HAYDN,YWP-HAYDN,FU

1

 

 

 

 

 

 

 

 

M0215

BN07-00229A

LCD-PANEL;LTM150XO-L21,Haydn,6BIT,326.5*

1

 

 

 

 

 

 

 

 

M0006

BN96-02440B

ASSY SHIELD P-COVER;HA15BS,SECC T0.8,DUA

1

S.N.A

 

 

 

 

 

 

 

M0107

BN63-02003B

SHIELD-COVER;HA15BS,SECC,T0.8,325,165,DU

1

S.N.A

 

 

 

 

 

 

 

M0014

BN94-00735F

ASSY PCB MAIN-STZ;LS15HABT*,W/W,TCO99,AM

1

 

 

 

 

 

 

 

 

M0174

BN44-00122A

IP BOARD;IP-19125A,BI15VS,4.5mA,8.0mA,50

1

 

 

 

 

 

 

 

 

CIS

BN63-02004A

SHIELD-LAMP;HA15AS,SECC,T0.8,100,150

1

S.N.A

 

 

 

 

 

 

 

M0013

BN96-02388D

ASSY COVER P-REAR;HA15BS,HIPS HB,BK24,HA

1

 

 

 

 

 

 

 

 

M0113

BN61-01581A

BRACKET-VESA;BI17/19BS,SECC,T1.0

2

S.N.A

 

 

 

 

 

 

 

M0006

BN63-01994D

COVER-REAR;HA15BS,HIPS,T2.5,338,272,HB,B

1

S.N.A

 

 

 

 

 

 

 

M0952

BN63-02075A

COVER-DUCT;HA17BS,HIPS,T1.5,13.5,13.5,HB

4

S.N.A

 

 

 

 

 

 

 

M0045

BN96-02389B

ASSY STAND P-SET;HA15BS,HIPS HB,GR70,SIL

1

 

 

 

 

 

 

 

 

5-4

6 Exploded View & Parts List

5-3 LS17HAA

T0003

M0215

 

 

M0006

 

M0014

M0013

 

 

M0112

 

 

 

M0107

 

 

 

M0113

M0174

 

M0006

T0022

 

 

M0020

 

 

M0003

M0006

CIS

M0013

5-5

5 Exploded View & Parts List

Location

Code.No

Item & Specification

Q'ty

SA/SNA

Remark

 

 

 

 

 

 

T0003

BN96-02383C

ASSY COVER P-FRONT;HA17AS,TCO03,ABS HB,G

1

 

 

 

 

 

 

 

 

M0112

BN63-01975B

COVER-FRONT;HA17AS_BS,ABS,T2.5,365.5,301

1

S.N.A

 

 

 

 

 

 

 

T0022

BN64-00377B

KNOB CONTROL;HA17TS,PC CLEAR,T2.1,9,112,

1

S.N.A

 

 

 

 

 

 

 

M0020

BN96-02474B

ASSY BOARD P;HAYDN,YWP-HAYDN,17 FUNCTION

1

 

 

 

 

 

 

 

 

M0215

BN07-00206A

LCD-PANEL;LTM170EX-L21,Bizet,6BIT FRC,35

1

 

 

 

 

 

 

 

 

M0006

BN96-01949C

ASSY SHIELD P-COVER;BI17BS,SECC,T0.8,COR

1

S.N.A

 

 

 

 

 

 

 

M0107

BN63-01767B

SHIELD-COVER;BI17BS,SECC,T0.8,AMLCD,TYPE

1

S.N.A

 

 

 

 

 

 

 

M0014

BN94-00723Z

ASSY PCB MAIN-STZ;LS17HAAK*,W/W,AMLCD

1

 

 

 

 

 

 

 

 

M0174

BN44-00124A

IP BOARD;IP-35135B,BI17VS,3.0 ~4.0mA,6.8

1

 

 

 

 

 

 

 

 

CIS

BN63-01769A

SHIELD-LAMP;BI17BS,SPTE,T0.3

1

S.N.A

 

 

 

 

 

 

 

M0013

BN96-02384A

ASSY COVER P-REAR;HA17AS,HIPS HB,BK24,AN

1

 

 

 

 

 

 

 

 

M0113

BN61-01581A

BRACKET-VESA;BI17/19BS,SECC,T1.0

2

S.N.A

 

 

 

 

 

 

 

M0006

BN63-01976A

COVER-REAR;HA17AS,HIPS,T2.5,365.5,301.3,

1

S.N.A

 

 

 

 

 

 

 

M0003

BN96-01947C

ASSY STAND P;HA17AS/BS,HIPS,BK24,STAND/B

1

 

 

 

 

 

 

 

 

M0013

BN96-02331D

ASSY STAND P-BASE;HA17AS/BS,HIPS,GR70 &

1

 

 

 

 

 

 

 

 

M0006

BN63-01977A

COVER-REAR SUB;HA17AS_BS,HIPS,T2.5,209,2

1

S.N.A

 

 

 

 

 

 

 

5-6

6 Exploded View & Parts List

5-4 LS17HAB

T0003

M0215

 

 

M0006

 

M0014

M0013

 

 

M0112

 

 

 

M0107

 

 

 

M0113

M0174

 

M0006

T0022

M0145

M0045

CIS

5-7

5 Exploded View & Parts List

Location

Code.No

Item & Specification

Q'ty

SA/SNA

Remark

 

 

 

 

 

 

T0003

BN96-02383D

ASSY COVER P-FRONT;HA17BS,TCO03,ABS HB,G

1

S.N.A

 

 

 

 

 

 

 

M0112

BN63-01975B

COVER-FRONT;HA17AS_BS,ABS,T2.5,365.5,301

1

S.A

 

 

 

 

 

 

 

T0022

BN64-00377B

KNOB CONTROL;HA17TS,PC CLEAR,T2.1,9,112,

1

S.N.A

 

 

 

 

 

 

 

M0145

BN96-02474A

ASSY BOARD P-FUNCTION;HAYDN,YWP-HAYDN,FU

1

S.N.A

 

 

 

 

 

 

 

M0215

BN07-00206A

LCD-PANEL;LTM170EX-L21,Bizet,6BIT FRC,35

1

S.A

 

 

 

 

 

 

 

M0006

BN96-01949D

ASSY SHIELD P-COVER;BI17BS,SECC,T0.8,COR

1

S.N.A

 

 

 

 

 

 

 

M0107

BN63-01767C

SHIELD-COVER;BI17BS,SECC,T0.8,AMLCD,TYPE

1

S.N.A

 

 

 

 

 

 

 

M0014

BN94-00723Y

ASSY PCB MAIN-STZ;LS17HABT*,W/W,TCO03,AM

1

S.N.A

 

 

 

 

 

 

 

M0174

BN44-00124C

IP BOARD;IP-35135B (H),BI17VS,3.0 ~4.0mA

1

S.N.A

 

 

 

 

 

 

 

CIS

BN63-01769A

SHIELD-LAMP;BI17BS,SPTE,T0.3

1

S.N.A

 

 

 

 

 

 

 

M0013

BN96-02384D

ASSY COVER P-REAR;HA17BS,HIPS HB,BK24,HA

1

S.N.A

 

 

 

 

 

 

 

M0113

BN61-01581A

BRACKET-VESA;BI17/19BS,SECC,T1.0

2

S.N.A

 

 

 

 

 

 

 

M0006

BN63-01976D

COVER-REAR;HA17BS,HIPS,T2.5,365.5,301.3,

1

S.A

 

 

 

 

 

 

 

M0045

BN96-02237B

ASSY STAND P-SET;HA17TS,HIPS HB,GR70,SIL

1

S.N.A

 

 

 

 

 

 

 

5-8

Samsung 540N, 540B, 740N, 740B, 740T Service manual

6 Exploded View & Parts List

5-5 LS17HAT

M0112

M0014

M0107

M0174

M0113

T0022

M0020

T0003

M0215

M0006

M0006

M0013

CIS

M0045

5-9

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