Samsung LE23T51B, LE27T51B, LE32T51B Service Manual

SERVICE

Manual

LCD TV

Fashion Feature

LCD-TV

Chassis Model

GTR23KE LE23T51B GTR27KE LE27T51B GTR32KE LE32T51B

- RF, DVI-D, PC(Analog), 2Scart, Component, Video, S-Video

- Brightness : 500cd/

- Contrast Ratio :

23": 800:1, 27": 1000:1, 32": 800:1

- Respense time : 16ms

- Dynamic contrast

- PIP (on PC only)

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Gyeonggi-Do, Korea, 443-742 Printed in Korea P/N : BN82-00128R-01 URL : http://itself.sec.samsung.co.kr/

-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.

SERVICE

Manual

LCD TV

Fashion Feature

LCD-TV

Chassis Model

GTR23KE LE23T51B GTR27KE LE27T51B GTR32KE LE32T51B GTR32KE LE32T51S

- RF, DVI-D, PC(Analog), 2Scart, Component, Video, S-Video

- Brightness : 500cd/㎡

- Contrast Ratio :

23": 800:1, 27": 1000:1, 32": 800:1

- Respense time : 16ms

- Dynamic contrast

- PIP (on PC only)

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Gyeonggi-Do, Korea, 443-742 Printed in Korea P/N : BN82-00128R-03 URL : http://itself.sec.samsung.co.kr/

-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.

1 Precautions

1-1

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

Ser vicing 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 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 Precautions

1-2

1-2-1 General Ser vicing

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.

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.

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.

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.

1-3

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

1-2 Ser vicing 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 Precautions

1-3

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 Precautions

1-4

Memo

2 Product Specifications

2-1

2 Product Specifications

2-1 Fashion Feature

- RF, DVI-D, PC(Analog), 2Scart, Component, Video, S-Video

- Brightness : 500cd/

- Contrast Ratio : 23": 800:1, 27": 1000:1, 32": 800:1

- Respense time : 16ms

- Dynamic contrast

- PIP (on PC only)

2 Product Specifications

2-2

2-2 Specifications

2-2-1 LE23T51B Specifications

LCD Panel

TFT-LCD panel, RGB vertical stripe, normaly white, 23-Inch viewable, 0.372 (H) x 0.372(V)mm pixel pitch

Scanning Frequency Horizontal : 30 kHz ~ 61 kHz (Automatic)

Vertical : 60 Hz ~ 75 Hz (Automatic)

Display Colors 16.7 Million colors Maximum Resolution Horizontal : 1360 Pixels

Vertical : 768 Pixels

Input Video Signal Analog 0.7 Vp-p

5% positive at 75 , internally terminated

Input Sync Signal Type : Seperate H/V

Level : TTL level

Maximum Pixel Clock rate

80 MHz

Active Display Horizontal/Vertical

AC power voltage & Frequency

AC 220 ~ 240 V, 50~60 Hz Power Consumption < 100W ( < 2W, stand by ) Dimensions(W x D x H)

Set 26.61 x 3.35 x 15.49 inches(675.9 x 85.0 x 393.4 mm) Body

26.61 x 8.02 x 17.30 inches (675.9 x 203.8 x 439.5 mm) With stand

Weight

Set(With stand) 16.76 lbs (7.6Kg)

Environmental Considerations

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

Operating Humidity : 10 % ~ 80 %

Storage Temperature : -4 F ~ 113 F (-20 C ~ 45 C)

Storage Humidity : 5 % ~ 95 %

TV System

Antena Input

- MAX Internal speaker Out : Right => 3W, Left => 3W

Sound Characteristic

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

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

- Headphone Out : 10 mW MAX

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

System

PAL, SECAM-B/G, D/K, I, I/I, L/L, NTPB (AV3.58, 4.43)

Item

Description

508.125 mm / 285.696 mm

Tunning Frequency Synthesize

Sound BG, DK, I, L ( A2/NICAM )

2 Product Specifications

2-3

2-2-2 LE27T51B Specifications

LCD Panel

TFT-LCD panel, RGB vertical stripe, normaly white, 27-Inch viewable, 0.1460 (H) x 0.4365(V)mm pixel pitch

Scanning Frequency Horizontal : 30 kHz ~ 61 kHz (Automatic)

Vertical : 60 Hz ~ 75 Hz (Automatic) Display Colors 16.7 Million colors Maximum Resolution Horizontal : 1360 Pixels

Vertical : 768 Pixels

Input Video Signal Analog 0.7 Vp-p

5% positive at 75 internally terminated

Input Sync Signal Type : Seperate H/V

Level : TTL level

Maximum Pixel Clock rate

80 MHz

Active Display Horizontal/Vertical

AC power voltage & Frequency

AC 220 ~ 240 V, 50~60 Hz Power Consumption < 140W ( < 2W, stand by ) Dimensions(W x D x H)

Set 30.18 x 3.78 x 18.07 inches (766.5 x 96.0 x 459.0 mm) Body

30.18 x 6.02 x 19.90 inches (766.5 x 203.8 x 505.5 mm) With stand

Weight Set(With stand) 26.46 lbs (12.0 kg)

Environmental Considerations

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

Operating Humidity : 10 % ~ 80 %

Storage Temperature : -4

F ~ 113 F (-20 C ~ 45 C)

Storage Humidity : 5 % ~ 95 %

TV System

Antena Input

- MAX Internal speaker Out : Right => 5W, Left => 5W

Sound Characteristic

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

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

- Headphone Out : 10 mW MAX

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

System

PAL, SECAM-B/G, D/K, I, I/I, L/L, NTPB (AV3.58, 4.43)

Item

Description

596.259 mm / 335.232 mm

Tunning Frequency Synthesize

Sound BG, DK, I, L ( A2/NICAM )

2 Product Specifications

2-4

2-2-3 LE32T51B Specifications

LCD Panel

TFT-LCD panel, RGB vertical stripe, normaly white, 32-Inch viewable, 0.511 (H) x 0.511(V)mm pixel pitch

Scanning Frequency Horizontal : 30 kHz ~ 61 kHz (Automatic)

Vertical : 60 Hz ~ 75 Hz (Automatic) Display Colors 16.7 Million colors Maximum Resolution Horizontal : 1360 Pixels

Vertical : 768 Pixels

Input Video Signal Analog 0.7 Vp-p

5% positive at 75 , internally terminated

Input Sync Signal Type : Seperate H/V

Level : TTL level

Maximum Pixel Clock rate

80 MHz

Active Display Horizontal/Vertical

AC power voltage & Frequency

AC 220 ~ 240 V, 50~60 Hz Power Consumption < 170 W ( < 2W, stand by ) Dimensions(W x D x H)

Set 36.00 x 4.09 x 20.82 inches (914.5 x 104.0 x 528.8 mm) With stand

36.00 x 9.74 x 23.29 inches (914.5 x 247.5 x 591.5 mm) Body

Weight

Set(With Stand) 33.07 Ibs (15.0 Kg) Environmental Considerations

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

Operating Humidity : 10 % ~ 80 %

Storage Temperature : -4

F ~ 113 F (-20 C ~ 45 C)

Storage Humidity : 5 % ~ 95 %

TV System

Antena Input 75

- MAX Internal speaker Out : Right => 7.5W, Left => 7.5W

Sound Characteristic

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

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

- Headphone Out : 10 mW MAX

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

System

PAL, SECAM-B/G, D/K, I, I/I, L/L, NTPB (AV3.58, 4.43)

Item

Description

697.69 mm / 392.26 mm

Tunning Frequency Synthesize

Sound BG, DK, I, L ( A2/NICAM )

2 Product Specifications

2-5

2-2-4 Spec Comparison

LE23T51B / LE27T51B / LE32T51B

Model

Design

Frequency Horizontal Vertical Display Color

30 ~ 61 kHz

60 ~ 75 Hz

16,777,216 colors

30 ~ 61 kHz

60 ~ 75 Hz

16,777,216 colors

PC Resolution Maximum mode

Input Signal Sync Signal Video Signal

Power Consumption Normal Power Saving

100W / 140W / 170W

< 2W

100W / 140W / 170W

< 1W

H/V Separate, TTL, P. or N.

0.7 Vp-p @ 75ohm

H/V Separate, TTL, P. or N.

0.7 Vp-p @ 75ohm

1360 x 768 / 60 Hz 1360 x 768 / 60 Hz

Input source Difference

DVI-D HDMI

PIP

PIP(PC Only) PIP, POP

Sound

3W / 5W / 7.5W 3W / 5W / 10W

LE23R41B / LE26R41B / LE32R41BX

2 Product Specifications

2-6

Item Item Name

Remote Control &

Batteries (AAA x 2)

Power Cord

Cover-Bottom

Stand

Stand Screw (4 ea)

Owner's Instructions

BN59-00488A

3903-000042

BN63-02177A

23, 27" : BN96-02639A

32" : BN96-02633A

6002-001294

BN68-00860C

Code.No Remark

2-3 Option Specification

3 Alignments and Adjustments

3-1

3 Alignments and Adjustments

3-1 General Alignment Instuction

1. Usually, a color LCD-TV 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 AC 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.

3 Alignments and Adjustments

3-2

3-2 Factory Mode Adjustments

3-2-1 Entering Factory Mode

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

- If you do not have Factory remote - control

Power OFF MENU MUTE Power OnINFO

3-2-2 Panel Check

- Specially for LE32T51BX, You have to check Panel Maker Because of different adjustments as follows. First of all, Check the label rating!

1) Label Rating File

* If not printed you could consider S(sec) panel mark.

2) If Panel Mark is "S", Set the factory mode indicating as follows.

* Option Byte

1. Panel Option : 32" AMLCD If Panel Mark is "A", Set the factory mode indicating as follows.

* Option Byte

1. Panel Option : 32" AUO Others are same shown below.

LCD PANEL

MARK

3 Alignments and Adjustments

3-3

1. Calibration : W/B Calibration AV Calibration

DTV Calibration PC Calibration

2. Option byte : Setting option Panel option : 23" AMLCD, 27" CMO,

32" AUO, 32" AMLCD

Gamma

on/off Auto Power : on/off Video Mute : 5 Language : English Hotel Mode : off/on LNA Plus : off/on V-chip : off Auto FM : off/on High Deviation : off/on TTX List : Flop/List MCC : off/on TTX Group :

User OSD

DVI : on/off

3. W/B : Adjustment White Balance Sub Bright : 128

R off set : 128 G off set : 128 B off set : 128 Sub contrast : 128 R gain : 128 G gain : 128 B gain : 128

VCTi

VCTi IC Correct register

VCTi Page 1 VCTi Page 2

3-2-3 Factory Mode Tree

- If you have Factory remote - control

[INFO] -> [FACTORY]

1. Calibration

2. Option Byte

3. W/B

4. VCTi

5. YC Delay

6. FLI5961

7. Adjust

8. Test Pattern

9. Password

10. Check Sum

11. Spread Spectrum

12. HDCP

13. Reset T-TRNPEU-0000 month day year time P-TRNPEU-0000 Panel On Time(Hour) 0000

3 Alignments and Adjustments

3-4

1. Calibration

2. Option Byte

3. W/B

4. VCTi

5. YC Delay

6. FLI5961

7. Adjust

8. Test Pattern

9. Chip Debugger

10. Check Sum

11. Spread Spectrum

12. HDCP

13. Reset T-TRNPEU-0000 month day year time P-TRNPEU-0000 Panel On Time(Hour) 0000

5. YC Delay RF PAL-B/G : 5

RF PAL-D/K : 6 RF PAL-I : 5 RF PAL-L/L' : 5 RF SECAM-B/G : 2 RF SECAM-D/K : 0 RF SECAM-I : 2 RF SECAM-L/L' : 5 RF NTSC 3.58 : 5 RF NTSC 4.43 : 5 AV PAL : 5 AV SECAM : 2 AV NTSC 3.58 : 5 AV NTSC 4.43 : 5 AV PAL 60 : 5

6. FLI5961 : Scaler IC Correct register Component Calibration

: Result DTV Calibration PC Calibration : Result PC Calibration ACC/ACM TNR Picture Enhance

7. Adjust User Control lnitial

LNA PLUS Hotel Option

11. Spread Spectrum

Spread Spectrum

: on/off

Spread Spectrum Range

: 2

Step : 63

8. Test Pattern : VCTi IC'S own test patterns.

(Total 7 patterns)

10. Check Sum : 0000

12. HDCP : 0000

13. Reset

9. Password : Use IC Register Correction.

3 Alignments and Adjustments

3-5

3-3 White Balance - Calibr ation

3-3-2 White Balance - Adjustment

3-3-1 White Balance -Calibration

3-3-3 Conditions for Measurement

1. Calibration

DTV Calibration PC Calibration (Calibration Condition refer to next page)

3. W/B

(low light) (hight light)

1. On the basis of toshiba ABL pattern : High Light level (57 IRE)

- INPUT SIGNAL GENERATOR : MSPG-925LTH * Mode NO 1 : 744X484@60 Hz

NO 6 : 1280X720@60 Hz (Component 720P) NO 21 : 1024X768@60 Hz

Pattern

NO 15 : Color bar NO 16 : Toshiba ABL Pattern NO 17 : 16 gray

2. Optical measuring device : CA210 (FL) Please use the MSPG-925 LTH generator for model LNR2355W,LNR2755W,LNR3255W.

(W/B adjustment Condition refer next page)

Sub Bright Sub Contrast R offset R gain G offset G gain B offset B gain

3 Alignments and Adjustments

3-6

2. Adjust the white balance of AV, Component and DVI Modes. a) Set the input to the mode in which the adjustment will be made (AV Component DVI). * Input signal - VIDEO Mode : Model #1 (744*484 Mode), Pattern #16

- Component, DVI Mode : Model #6 (1280*720 Mode), Pattern #16

b) Enter factory W/B. c) Adjust the low light.

- Adjust sub - Brightness to set the 'Y' value.

- Adjust red offset ('x') and blue offset ('y') to the color coordinates. ( x : 263, y : 267, Y : 1.3 ft) * Do not adjust green offset data.

3-3-4 Method of Adjustment

1. Adjust the basic level of Component and PC input signals. a) Set the input to the mode in which the adjustment will be made (Component PC ). * Input signal - Component Mode : Model #6 (1280*720 Mode), Pattern #15 (picture 4-1)

- PC Mode : Model #21 (1024*768 Mode), Pattern #17 (Picture 4-2) b) Enter factory Calibration (DTV, PC Mode Only). * DTV Calibration Source change for PC PC Calibration

Picture 4-1 Color bar Picture 4-2 16gray

Picture 4-3 Toshiba ABL Pattern

Low light Measurement point

3 Alignments and Adjustments

3-7

Picture 4-4 Toshiba ABL Pattern

High light Measurement point

d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust red gain ('x') and blue gain ('y') to the color coordinates. ( x : 263, y : 267 ) *

Do not adjust the green gain and sub-contrast (Y) data.

(Only RE32T51BX) If Panel is AM-LCD, Y adjust 36FT/L.

3 Alignments and Adjustments

3-8

3-4 TORINO Micom Update

3-4-1 Installing G-Probe

1. Uncompress GProbe5.1.0.18.zip.

2. Run GProbe5.1.0.18.exe.

3. The files are created in the C:

Program Files Genesis Microchip GProbe 5 folder.

4. Copy the ispoak_spi.hex file to the C: Program Files Genesis Microchip GProbe 5 folder.

5. Uncompress FLI5961-AC_GProbe_S0006-CSC-33B.zip.

6. Three files are extracted (FLI5961.Chip.GProbe, FLI5961.chm).

7. Copy all 2 files to the C:

Program Files

Genesis Microchip GProbe 5 ChipDB folder.

8. Run GProbe.exe in the C: Program Files Genesis Microchip GProbe 5 folder. The G-Probe program is created.

3 Alignments and Adjustments

3-9

3-4-2 Connecting to the MAIN PCB

Switch off

Connect to the PC

Connect to the MAIN PCB.

3 Alignments and Adjustments

3-10

3-4-3 Update Procedures

1. Open mgm.txt in the C:

Program Files Genesis Microchip GProbe 5 folder.

2. The following result will appear.

// // Batch file to program a sPI serial flash using ISP. // Moving the stack to high memory area is now taken care of in IROM // through the "Reset 0" command. Assumes the ISP driver is in the same // directory as this file. Change ISP driver path in "fastFlashWrite" // command, if different from current directory. // debugon

SetBuffer 0x2000 0x800 delay 200 Reset 0 delay 500

// SPI flash driver RAMWrite ispoak_spi.hex

Run 0x500 delay 100

// Optional - Get Flash ID. The second parameter is a don't care //FLASHCRC 0xff0000 0x20000

// Command delay for flash erase SetDelay 1000 9000

FlashErase

// Command delay for flash write. This is for each flash write packet (upto 4 k Bytes) SetDelay 1000 3000

// Change this line to point to a file in a different location, if needed //fastFlashWrite C: Proj OAK APP-59xx debug obj 59xx_proj.hex

fastFlashWrite C: Program Files Genesis Microchip GProbe 5 T_TRNNUS.hex

// Optional - Get CRC of 128 kByte flash. For other sizes, change second parameter // accordingly //FLASHCRC 0x80000 0x20000 // to reset the monitor after programming the flash using DDC2BI ONLY: // Un-comment the following three lines (PLEASE - FOR DDC2BI PORT SELECTED ONLY) //0x8000=1 //0x8003=0 //0x8027=1

3 Alignments and Adjustments

3-11

The Micom program is to be copied to the folder marked in red and the name of the program is to be the same as the file name marked in blue. (If the Micom program is not in the folder marked in red, change the path to the folder which includes the Micom program and then save the file.)

3. When completing all the procedures above, connect the Jig and the PCB, and run the G-Probe program. After that Enter 'test 10' as shown in the following figure and press Enter or click the Execute button. If the result appears as shown in the following figure, it is properly connected.

3 Alignments and Adjustments

3-12

4. Enter 'batch mgm.txt' as show in the following figure and press Enter or click the Execute button to update Micom.

If the MICOM update is successfully completed, the above message appears.

4 Troubleshooting

4-1

4 Troubleshooting

4-1 No Power

Does proper DC 12V

appear at C820, C823?

Change a Assy PCB Power.

Yes

Check a connection a power cable.

Does proper DC A3.3V,

A5V appear at

C834, C830?

Check a IC816, IC815

Change a main PCB ass'y.

Yes

Does proper DC 5V, 3.3V,

1.8V appear at C813, C811, C816?

Check a IC821, IC811

Change a main PCB ass'y.

Yes

A power is supplied to set?

Check a other function.

(No picture part)

Replace a lcd panel.

LAMP off, power indicator

LED red color?

4 Troubleshooting

4-2

4-2 No Video (Analog PC Signal)

Check a PC source and check

the connection of DSUB cable?

Input a analog PC signal and

connected cable(DPMS).

Yes

Does the signal appear at

R781, R782, R783?

PC cable. Change a PC

cable. Change a main PCB ass'y.

Yes

Does the digital data appear

at output of

LVDS TX(R422~R425,

R430~R433)?

Check a IC310.

Change a main PCB ass'y.

Yes

Check a LVDS cable?

Replace a lcd panel?

Please, Call to Samsung Co. LTD.

Yes

Power Indicator is off.

Lamp on, no video.

4 Troubleshooting

4-3

WAVEFORMS

R,G,B Output Signal

Digital Output Data of IC310

4 Troubleshooting

4-4

4-3 No Video (DVI-Digital Signal)

Check the connectionn

of HDMI cable?

Input a HDMI cable.

Yes

Does the digital data appear at

FT2704, 2705, 2706, 2708?

HDMI cable change a HDMI cable

change a main PCB ass'y.

Yes

Does the digital data

appear at output of IC310

LVDS(R422~R425, R430~R433)?

Check a IC310.

Change a main PCB ass'y.

Yes

Check a LVDS cable?

Replacea lcd panel?

Please, Call to Samsung Co. LTD.

Yes

Power Indicator is off.

Lamp on, no video.

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