samsung LN23R71BAX, LN23R71WAX, LN26R71BAX, LN32R71BAX, LN40R71BAX Service Manual

TFT-LCD TV

Chassis GNB23MLA

GNB26MLA
GNB32MLA
GNB40MLA

Model LN23R71BAX

LN23R71WAX
LN26R71BAX
LN32R71BAX
LN40R71BAX

Manual

SERVICE

TFT-LCD TV Feature

- RF, HDMI, PC(Analog), Component, Video,
S-Video

- Brightness : 500cd/m2

- Contrast Ratio:
23"/ 26" : 3000:1, 32"/ 40" : 5000:1

- Response time : 8ms

- Dynamic contrast

- PIP(on COM, PC, HDMI)

Contents

11. Precautions

………………………………………………………………………………………………………………………………………

11-1

1-1 Safety Precautions ……………………………………………………………………………………………………………………… 1-1

1-2 Servicing Precautions …………………………………………………………………………………………………………………… 1-2

1-3 Static Electricity Precautions …………………………………………………………………………………………………………… 1-2

1-4 Installation Precautions…………………………………………………………………………………………………………………… 1-3

2

2. Product specifications

…………………………………………………………………………………………………………………………

22-1

2-1 Fashion Feature…………………………………………………………………………………………………………………………… 2-1

2-2 LN23R71BAX/LN23R71WAX Specifications ………………………………………………………………………………………… 2-2

2-3 LN26R71BAX Specifications …………………………………………………………………………………………………………… 2-3

2-4 LN32R71BAX Specifications …………………………………………………………………………………………………………… 2-4

2-5 LN40R71BAX Specifications …………………………………………………………………………………………………………… 2-5

2-6 Spec Comparison ………………………………………………………………………………………………………………………… 2-6

2-7 Option Specification ……………………………………………………………………………………………………………………… 2-7

3

3. Alignments and Adjustments

…………………………………………………………………………………………………………………

33-1

3-1 Service Instruction ……………………………………………………………………………………………………………………… 3-1

3-2 How to Access Service Mode …………………………………………………………………………………………………………… 3-2

3-3 Factory Data ……………………………………………………………………………………………………………………………… 3-3

3-4 Service Adjustment ……………………………………………………………………………………………………………………… 3-9

3-5 Software Upgrade ……………………………………………………………………………………………………………………… 3-12

4

4. Troubleshooting

………………………………………………………………………………………………………………………………

44-1

4-1 First Checklist for Troubleshooting ………………………………………………………………………………………………………4-1

4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2

5

5. Exploded View and Parts List

…………………………………………………………………………………………………………………

55-1

5-1 LN23R71BAX/LN23R71WAX Exploded View ………………………………………………………………………………………… 5-1

5-2 LN23R71BAX Parts list…………………………………………………………………………………………………………………… 5-2

5-3 LN23R71WAX Parts list ………………………………………………………………………………………………………………… 5-2

5-4 LN26R71BAX Exploded View …………………………………………………………………………………………………………… 5-3

5-5 LN26R71BAX Parts list…………………………………………………………………………………………………………………… 5-4

5-6 LN32R71BAX Exploded View …………………………………………………………………………………………………………… 5-5

5-7 LN32R71BAX Parts list…………………………………………………………………………………………………………………… 5-6

5-8 LN40R71BAX Exploded View …………………………………………………………………………………………………………… 5-7

5-9 LN40R71BAX Parts list…………………………………………………………………………………………………………………… 5-8

6

6. Electrical Parts List

……………………………………………………………………………………………………………………………

66-1

6-1 LN23R71BAX/LN23R71WAX Parts List ……………………………………………………………………………………………… 6-1

6-2 LN26R71BAX Parts List ………………………………………………………………………………………………………………… 6-18

6-3 LN32R71BAX Parts List ………………………………………………………………………………………………………………… 6-33

6-4 LN40R71BAX Parts List ………………………………………………………………………………………………………………… 6-50

Contents

77. Block Diagram

…………………………………………………………………………………………………………………………………

77-1

8. WWiring Diagram

…………………………………………………………………………………………………………………………………

8

8-1

8-1 Wiring Diagram …………………………………………………………………………………………………………………………… 8-1

8-2 Main Board Layout ……………………………………………………………………………………………………………………… 8-2

8-3 PIN characteristic ………………………………………………………………………………………………………………………… 8-3

8-4 Power Board Layout ……………………………………………………………………………………………………………………… 8-6

9

9.

Schematic Diagrams

……………………………………………………………………………………………………………………………

9

9-1

9-1 Power_Sound Schematic Diagram ……………………………………………………………………………………………………… 9-1

9-2 Jack Schematic Diagram ………………………………………………………………………………………………………………… 9-2

9-3 Micom Schematic Diagram ……………………………………………………………………………………………………………… 9-3

9-4 SVP-PX/PX-Power/LBE-Option Schematic Diagram ………………………………………………………………………………… 9-4

9-5 Application Schematic Diagram ………………………………………………………………………………………………………… 9-5

1

10. Operating Instructions and Installation

………………………………………………………………………………………………………

110-1

10-1 Front …………………………………………………………………………………………………………………………………… 10-1

10-2 Connection Panel ……………………………………………………………………………………………………………………… 10-2

10-3 Remote control ………………………………………………………………………………………………………………………… 10-5

10-4 Installing the Stand …………………………………………………………………………………………………………………… 10-6

10-5 Installing the Wall Mount Kit ………………………………………………………………………………………………………… 10-6

1

11. Disassembly and Reassembly

………………………………………………………………………………………………………………

111-1

11-1 Disassembly …………………………………………………………………………………………………………………………… 11-1

11-2 Reassembly …………………………………………………………………………………………………………………………… 11-5

1

12. PCB Diagram

…………………………………………………………………………………………………………………………………

112-1

12-1 Main PCB Diagram …………………………………………………………………………………………………………………… 12-1

12-2 Power PCB Diagram 23" ………………………………………………………………………………………………………………12-2

12-3 Power PCB Diagram 26", 32" ………………………………………………………………………………………………………… 12-3

12-4 Power PCB Diagram 40" ……………………………………………………………………………………………………………… 12-4

1

13. Circuit Descriptions

……………………………………………………………………………………………………………………………

113-1

13-1 Block description ……………………………………………………………………………………………………………………… 13-1

13-2 Main Block ……………………………………………………………………………………………………………………………… 13-3

13-3 SMPS Board …………………………………………………………………………………………………………………………… 13-4

1

14. Reference Infomation

………………………………………………………………………………………………………………………

114-1

14-1 Technical Terms ……………………………………………………………………………………………………………………… 14-1

14-2 Pin Assignments ……………………………………………………………………………………………………………………… 14-4

14-3 Timing Chart …………………………………………………………………………………………………………………………… 14-6

14-4 Panel Description …………………………………………………………………………………………………………………… 14-10

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 resistor-capacitor 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

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 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 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.

1-2 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.

2-2 LN23R71BAX/LN23R71WAX Specifications

2 Product Specifications

2-2

Item

LCD Panel

Description

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

Input Video Signal

Analog 0.7 Vp-p ±5% positive at 75Ω , internally terminated

Maximum Pixel Clock rate

80 MHz

AC power voltage & Frequencya

AC 110 , 60Hz

Power Consumption

100 W < 1 W

Antenna Input

75Ω

Environmental Considerations

Operating Temperature : 10°C ~ 40°C

Operating Humidity : 10 % ~ 80 %, non-condensing

Storage Temperature : -20°C ~ 45°C

Storage Humidity : 5 % ~ 95 %, non-condensing

Sound Characteristic

-MAX Internal speaker Out : Right : 5W / Left : 5W

-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

TV System

Tuning

System

Sound

Frequency Synthesize

NTSC-M

MONO, STEREO, SAP

Dimensions(W x D x H)

Set

594 x 75 x 425.5 mm (23.38 x 2.95 x 16.75 inch)_with out stand

594 x 215.5 x 475.5 mm (23.38 x 8.48 x 18.72)_ with stand

Weight

Set(After installation Stand)

8 kg (17 Ibs)

Active Display
Horizontal/Vertical

508.125 mm / 285.696 mm

Input Sync Signal

Type : Seperate H/V

Level : TTL level

Maximum Resolution

Horizontal : 1360 Pixels

Vertical : 768 Pixels

2 Product Specifications

2-3

2-3 LN26R71BAX Specifications

2 Product Specifications

Item

LCD Panel

Description

TFT-LCD panel, RGB vertical stripe, normaly white, 26-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

Input Video Signal

Analog 0.7 Vp-p ±5% positive at 75Ω , internally terminated

Maximum Pixel Clock rate

80 MHz

AC power voltage & Frequencya

AC 110 , 60Hz

Power Consumption

120 W < 1 W

Antenna Input

75Ω

Environmental Considerations

Operating Temperature : 10°C ~ 40°C

Operating Humidity : 10 % ~ 80 %, non-condensing

Storage Temperature : -20°C ~ 45°C

Storage Humidity : 5 % ~ 95 %, non-condensing

Sound Characteristic

-MAX Internal speaker Out : Right : 5W / Left : 5W

-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

TV System

Tuning

System

Sound

Frequency Synthesize

NTSC-M

MONO, STEREO, SAP

Dimensions(W x D x H)

Set

675 x 75 x 475.5mm (26.57 x 2.95 x 18.72 inch)_with out stand

675 x 215.5 x 530 mm (26.57 x 8.48 x 20.86 inch)_ with stand

Weight

Set(After installation Stand)

10 kg (23 lbs)

Active Display
Horizontal/Vertical

575.77mm / 323.71mm

Input Sync Signal

Type : Seperate H/V

Level : TTL level

Maximum Resolution

Horizontal : 1360 Pixels

Vertical : 768 Pixels

2 Product Specifications

2-4

2-4 LN32R71BAX Specifications

Item

LCD Panel

Description

TFT-LCD panel, RGB vertical stripe, normaly white, 32-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

Input Video Signal

Analog 0.7 Vp-p ±5% positive at 75Ω , internally terminated

Maximum Pixel Clock rate

80 MHz

AC power voltage & Frequencya

AC 110 , 60Hz

Power Consumption

150 W < 1 W

Antenna Input

75Ω

Environmental Considerations

Operating Temperature : 10°C ~ 40°C

Operating Humidity : 10 % ~ 80 %, non-condensing

Storage Temperature : -20°C ~ 45°C

Storage Humidity : 5 % ~ 95 %, non-condensing

Sound Characteristic

-MAX Internal speaker Out : Right : 10W / Left : 10W

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

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

-Headphone Out : 10 mW MAX

-Output Frequency : RF : 80 Hz ~ 15 kHz

A/V : 80 Hz ~ 20 kHz

TV System

Tuning

System

Sound

Frequency Synthesize

NTSC-M

MONO, STEREO, SAP

Dimensions(W x D x H)

Set

800 x 80 x 548.5 mm (31.49 x 3.14 x 21.59 inch)_with out stand

800 x 252 x 603 mm (31.49 x 9.92 x 23.74 inch)_With stand

Weight

Set(After installation Stand)

15 kg (33 lbs)

Active Display
Horizontal/Vertical

697.68mm / 392.26mm

Input Sync Signal

Type : Seperate H/V

Level : TTL level

Maximum Resolution

Horizontal : 1360 Pixels

Vertical : 768 Pixels

2 Product Specifications

2-5

2-5 LN40R71BAX Specifications

Item

LCD Panel

Description

TFT-LCD panel, RGB vertical stripe, normaly white, 40-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

Input Video Signal

Analog 0.7 Vp-p ±5% positive at 75Ω , internally terminated

Maximum Pixel Clock rate

80 MHz

AC power voltage & Frequencya

AC 110 , 60Hz

Power Consumption

210 W < 1 W

Antenna Input

75Ω

Environmental Considerations

Operating Temperature : 10°C ~ 40°C

Operating Humidity : 10 % ~ 80 %, non-condensing

Storage Temperature : -20°C ~ 45°C

Storage Humidity : 5 % ~ 95 %, non-condensing

Sound Characteristic

-MAX Internal speaker Out : Right : 10W / Left : 10W

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

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

-Headphone Out : 10 mW MAX

-Output Frequency : RF : 80 Hz ~ 15 kHz

A/V : 80 Hz ~ 20 kHz

TV System

Tuning

System

Sound

Frequency Synthesize

NTSC-M

MONO, STEREO, SAP

Dimensions(W x D x H)

Set

991.5 x 87 x 658.5 mm (39.03 x 3.42 x 25.92 inch)_with out stand

991.5 x 326 x 713 mm (39.03 x 12.83 x 28.07 inch)_with stand

Weight

Set(After installation Stand)

23 kg (50 lbs)

Active Display
Horizontal/Vertical

885.17 mm / 497.64mm

Input Sync Signal

Type : Seperate H/V

Level : TTL level

Maximum Resolution

Horizontal : 1360 Pixels

Vertical : 768 Pixels

2 Product Specifications

2-6

LN26R71BX/LN32R71BX/LN40R71BXModel

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

Input source
Difference

100W / 152W / 205W

< 1W

HDMI HDMI

PIP

PIP, POP

PIP, POP

Sound Output

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

100W / 120W / 150W / 210W

< 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

WXGA, 1360 x 768 @ 60 Hz

1360 x 768 / 60 Hz

LN23R71BAX/LN23R71WAX/LN26R71BAX/

LN32R71BAX/LN40R71BAX

2-6 Spec Comparison

2 Product Specifications

2-7

2-7 Option Specification

Item Item Name

Remote Control

&

Batteries (AAA x 2)

Power Cord

Cleaning Cloth

Owner's

Instructions

Stand

Stand Screw

BN59-00604A

3903-000144

BN63-001798A

BN68-00998E

26" : BN90-00913B
32" : BN90-00842A
40" : BN90-00847A

Code.No Remark

Cover-Bottom

26" : BN63-02323A
32" : BN63-02323A
40" : BN63-02366A

3 Alignments and Adjustments

3-1

3 Alignments and Adjustments

3-1 Ser vice Instr uction

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 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 How to Access Service Mode

3-2-1 Entering Factory Mode

1. To enter "Service Mode" Press the remote -control keys in this sequence :

- If you do not have Factory remote - control

- If you have Factory remote - control

- The buttons are active in the service mode.

1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left
Arrow Right, Menu, Enter, Number Key(0~9)

2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -,
Menu, TV/VIDEO(Enter)

Power OFF 1 8 2 Power OnMUTE

PICTURE ON

FACTORY

DISPLAY

3 Alignments and Adjustments

3-3

3-3 Factory Data

1. Calibration

2. Option Table XXXX XXXX

3. W/B

4. W/B Movie

5. MTK8202

6. FBE2 Option

7. Sound

8. YC Delay

9. Adjust

10. Bus Stop

11. Password 80 80 80 80

12. Checksum 0000

13. Dynamic Contrast

14. Spread Spectrum

15. Reset
HDCP Write Success..
T_BDPMNSA-1000 Aug 04 2006 16:41:30 ------------------- (Main Micom Ver)
Month/ Day / Year / Hour/ Min./Sec.
Panel On Time(Hour) XXXXX
TV Air 2 XX

1. Calibration

1) AV Calibration

2) DTV Calibration

3) PC Calibration

4) HDMI Calibration

2. Option Byte

inch Option 32 Carrier Mute ON Shop Mode OFF

Gamma AUO Auto FM ON Debug OFF

Panel option AUO_AMVA High Dev. OFF Dynamic Contrast OFF

2HDMI OFF ACR OFF V-Chip OFF

Brt,Sensor OFF Dynamic CE ON

EnergySave ON Dynamic Dimming ON

LBE/FBE OFF Color System Manual

FRC(Micronas) OFF Auto Power ON

FRC(Samsung) OFF Magazine LNA OFF

LNA OFF V-Chip Area US

3 Alignments and Adjustments

3-4

3. White Balance

Sub Brightness 104 104 104
R-Offset 122 122 122
G-Offset 128 128 128
B-Offset 129 129 129
Sub Contrast 165 155 --> 140 155 --> 140
R-Gain 137 137 137
G-Gain 128 128 128
B-Gain 136 136 136

1. Calibration

2. Option Table

AV Calibration EXE
DTV Calibration EXE
PC Calibration EXE
HDMI Calibration EXE

Inch Option 26" 32" 40"
Gamma AUO AUO AMLCD
Panel Option AUO AUO_AMVA AMLCD_INT
2Hdmi OFF OFF OFF
Brt. Sensor OFF OFF OFF
EnergySave ON ON ON
LBE/FBE OFF OFF OFF
FRC(Micronas) OFF OFF OFF
FRC(Samsung) OFF OFF OFF
LNA OFF OFF OFF
Carrier Mute ON ON ON
Auto FM ON ON ON
High Deviation OFF OFF OFF
ACR OFF OFF OFF
Dynamic CE ON ON ON
Dynamic Dimming ON ON ON
Color System Manual Manual Manual
Auto Power ON ON ON
Magazine LNA OFF OFF OFF
V-Chip Area US US US
Shop Mode OFF OFF OFF
Debug OFF OFF OFF
Dynamic Contrast OFF OFF OFF
V-Chip OFF OFF OFF

3 Alignments and Adjustments

3-5

4. SVP-PX

ComB Filter Y-Filter 80H
Sharpness H2Gain 00H

H4Gain 0CH
V2Gain 00H
V4Gain 0CH
Sr2Gain 00H
Sr4Gain 08H
Sl2Gain 00H
Sl4Gian 08H
PeaKTh1 03H
PeaKTh2 33H
PeaKTh3 45H

NR Y_NR_OFF 80H

C_NR_OFF 80H
Y_NR_ON 80H
C_NR_ON 80H

RGB Calibration R-Offset 23H

G-Offset 23H
B-Offset 23H

R-Gain 9BH
G-Gain 9BH
B-Gain 9BH

ADC Calibration TCD3 Contrast 6AH

TCD3 Brightness 26H
TCD3 CR 80H
TCD3 CB 80H
TCD3 Delay 00H
Analog Y Offset 40H
Analog PB Offset 80H
Analog PR Offset 80H
Analog Y Gain D6H
Analog PB Gain FEH
Analog PR Gain FEH
Black Level 00H
Svp Brightness 00H

3 Alignments and Adjustments

3-6

low high delta

Calibration Target AV ADC 17H D5H 04H

COMP ADC 0FH EBH 02H
PC ADC 17H D5H 04H
ALL RGB 00H DDH 08H

Color Management Skin Direction Reddish

Skin Enhane 40H

5. Option block

EXE

6. STV8258/STA323W

Ch1 Volume 40H
Ch2 Volume 40H
Stereo Pilot H 23H
Stereo Pilot L 10H
Sap Pilot H 80H
Sap Pilot L 60H
SQTH 70H
CETH 10H
AV Delay 55H
Comp delay 32H
HDMI Delay 32H
PC Delay 32H
L1 Att/Rel Thres 7F

7. Y/C Delay

RF PAL-M 77H
RF PAL-N 64H
RF NTSC 63H
AV PAL-M 76H
AV PAL-N 76H
AV NTSC 54H
S-VIDEO PAL-M 77H
S-VIDEO PAL-N 77H
S-VIDEO NTSC BBH
Component 88H
PC 88H
HDMI 88H

3 Alignments and Adjustments

3-7

8. Adjust

Video Mute Time 10
Vol Curve Large
Melody Volume 4
Ana_Dimm_Max FEH

LNA PLUS RFDB-1 Level 2

RFDB-2 Level 5
RFDB-3 Level 9
RFDB-4 Level 24

Hotel Option Hotel Mode OFF

Power On Channel 1
Power On Volume 10
Max Volume 100
Local Key Lock OFF
Power On Source RF

9. I2C Check

EXE

10. W/B MOVIE

WB Movie OFF
Color Mode Movie
W1 R Gain 157
W1 B Gain 76
W1 R Offset 119
W1 B Offset 138
W2 R Gain 142
W2 B Gain 48
W2 R Offset 129
W2 B Offset 143
Movie Contrast 80
Movie Brightness 65
Movie Color 35
Movie Sharpness 35
Movie Color Tone Warm2

3 Alignments and Adjustments

3-8

11. Checksum

18EA

12. Reset

EXE

13. Spread Spectrum

Spectrum ON
Delta 3
Positive 8
Negative 2

3 Alignments and Adjustments

3-9

3-4 Ser vice Adjustment

3-4-1 White Balance - Calibration

If picture color is wrong, do calibration first.

Equipment : CA210, Patten : chess pattern
Execute calibration in Factory Mode
Source AV : PAL composite, Component : 1280*720/60Hz

PC : 1024*768/60Hz

3-4-2 White Balance - Adjustment

If picture color is wrong, check White Balance condition.

Equipment : CA210, Patten : Toshiba
Adjust W/B in Factory Mode

Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz

HDMI[DVI] : 1280*720/60Hz

W/B Patten

[ Test Pattern : MSPG-945 Series Pattern #92 ]

*Color temperature
1500K +/-500, -6 ~-20 MPCD

*Color coordinate
H/L : 267/263 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 270/260 +/- 3 1.5 Ft +/- 0.2Ft

( chess patten )

3 Alignments and Adjustments

3-10

3-4-3 Conditions for Measurement

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 2 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz

* Pattern NO 36 : 16 Color Pattern

NO 16 : Toshiba ABL Pattern
NO 92 : W/B Pattern

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

LE26M51B/LE32M51B/LE40M51B/LE46M51B

.

3-4-4 Method of Adjustment

1. Adjust the white balance of AV, Component and DVI Modes.

(AV Component)

a) Set the input to the mode in which the adjustment will be made

(RF DTV PC DVI).

* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16

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

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

b) Enter factory color control, confirm the data.

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

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

- Adjust red offset ('x') and blue offset ('y') to the color coordinates.

* Do not adjust green offset data.

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

Picture 4-2 W/B Patten

3 Alignments and Adjustments

3-11

Picture 4-3 W/B Patten

3 Alignments and Adjustments

3-12

3-5 Software Upgrade

3-5-1 How to Update Flash ROM (with RS-232C Cable)

1. Installthe Flash Downloader
ConnectSet(Service Jack)and Jig Cable to execute Program Update.

2. Turn on the Set (or on Stand by mode)

- Run "MTKtool"

3. Turn off (= AC Power off) the Set (waiting a few seconds) and turn on again.

- Click Reset

- Choose MT8202 (1)

- Select Com Port (2) (Auto Detect)

- Select Bin file, by browse (3)

- Click Upgrade button (4)

3 Alignments and Adjustments

3-13

3-5-2 How to Update Flash ROM (with UART JIG)

¡Ø In the usual cases, Update S/W by using RS-232C Cable.

If some problems occur under this condition, update S/W by using UART JIG.

You can use UART JIG with USB Connection.

Install in your PC before using the JIG
Connect 4P Lead connector to Main Board(CN501)

3 Alignments and Adjustments

3-14

* Pin Assignment

Turn on the Set (or on Stand by mode)

- Run "MTKtool"

When you run "MTKtool", this Program can detect USB port automatically
Choose USB interface and Update S/W as RS-232C case.

4 Troubleshooting

4-1

4 Troubleshooting

4-1 First Checklist for Troubleshooting

1. Check the various cable connections first.

- Check to see if there is a burnt or damaged cable.

- Check to see if there is a disconnected cable connection or a connection is too loose.

- Check to see if the cables are connected according to the connection diagram.

2. Check the power input to the Main Board.

3. Check the voltage in and out between the SMPS Main Board, between the SMPS

INVERTER Board, and between the Main LVDS Boards.

4 Troubleshooting

4-2

4-2-1 No Power

4-2 Checkpoints by Error Mode

Does proper DC

A3.3V,A1.8Vappear at C126,

C156?

Check IC104, IC107 Change the

Main Ass'y

Yes

Yes

Yes

No

Check a connection a power cable.

P/N : BN39-00802A

BN39-00802B(40")

Change the Main Power Ass'y

23" : BN44-00158A
26" : BN44-00156A
32" : BN44-00156A

40" : BN44-00167A/00165A

No

Does proper DC

B9V,B3.3V_8202/B3.3VD,

B2.5V_8202 appear at

C103,C132, C145?

Check a IC809, IC802.

Change a main PCB ass'y.

Yes

No

Does proper DC 5V, 3.3V,

1.8V appear at C811, C853,
C833?

Check IC101, IC105, IC106 Change the

Main Ass'y

Yes

Does proper DC B3.3FB,

B1.2FB, B1.8VD appear at

C179_FBE, C182_FBE, C159?

Check IC110_FBE, IC111_FBE, IC109

Change the Main Ass'y

No

No

Yes

Yes

Does proper DC B3.3VD

appear at D8014?

Check IC8001

Change the Main Ass'y

No

A power is supplied to set?

Check a other function(No picture part)

Replace a LCD Panel

23" : BN07-00365A
26" : BN07-00254A
32" : BN07-00385A
40" : BN07-00387A

No

LAMP off, power indicator

LED red color?

Does proper Satand-By DC

A5V appear at C127

Does proper Main DC B12V,

B5V, B12VS appear at C104,

BD105, C119?

Does proper Inverter DC 24V

appear at CNM801 in SMPS

4 Troubleshooting

4-3

4-2-2 No Video (Analog PC Signal)

Check the PC source and

check the connection of

DSUB?

Input an analog PC signal.

check the connected cable.

Yes

Does the signal appear at

#R25, T25, T24, U24, V25,

V26(R,G,SOG,B,V,H) of

IC602?

Check JA306, PC cable.

Change the PC cable.

Change the main PCB Ass'y.

Yes

Power Indicator is off.

Lamp on, no video.

No

No

1

Does the digital data appear at

output of R916_FBE ~

R921FBE?

Check IC602.

Change the main PCB Ass'y.

Yes

Does the digital data appearat

output of R1001_FBE ~

R1017_FBE?

Check IC 901_FBE

Change the main PCB Ass'y.

Yes

No

No

2

3

Yes

Check the LVDS cable?

Replace the LCD panel?

Please, call to Samsung Co. LTD

No

4 Troubleshooting

4-4

WAVEFORMS

1 2

PC Input (V-Sync, H-Sync)

3

LVDS Out (CLK +/-)

4 Troubleshooting

4-5

4-2-3 No Video (HDMI - Digital Signal)

Check the HDMI source and

check the connection of

HDMI cable?

Input a HDMI signal.

check the connected cable.

Yes

Does the signal appear at

R461,R464,R457,R458,R454,

R456,R467-R474?

Check JA801, JA802,

HDMI cable.

Change the HDMI cable.

Change the main PCB Ass'y

Yes

Does the digital data appear

at output of R738 ~ R745?

Check IC405

Change the main PCB Ass'y.

Yes

Does the digital data appear

at output of R916_FBE ~

R921FBE?

Check IC601.

Change the main PCB Ass'y.

Yes

Power Indicator is off.

Lamp on, no video.

No

No

No

No

4

5

2

Yes

Does the digital data appearat

output of R1001_FBE ~

R1017_FBE?

Check IC 901_FBE

Change the main PCB Ass'y.

No

3

Yes

Check the LVDS cable?

Replace the LCD panel?

Please, call to Samsung Co. LTD

No