Samsung LT20A350, LT22A350, LT23A350, LT24A350, LT22A550 Service Manual

LCD TV Monitor

Chassis :

Model :

WDS2

LT20A350

LT22A350

LT23A350

LT24A350

WDS4

LT22A550

LT23A550

LT24A550

LT27A550

Manual

SERVICE

TFT-LCD TV Monitor Contents

1. Precautions

2. Product specications

3. Disassembly and Reassembly

4. Troubleshooting

5. Wiring Diagram

TA350 / TA550

Contents

1. Precautions .............................................................................................................. 1-1

1-1. Safety Precautions ......................................................................................................... 1-1

1-2. Servicing Precautions ..................................................................................................... 1-2

1-3. Electrostatically Sensitive Devices (ESD) Precautions .................................................. 1-2

1-4. Installation Precautions .................................................................................................. 1-3

2. Product specications ............................................................................................ 2-1

2-1. Feature & Specications ................................................................................................. 2-1

2-2. Detail Factory Option ...................................................................................................... 2-6

2-3. Accessories .................................................................................................................... 2-8

2-4. New Features explanation ............................................................................................ 2-10

3. Disassembly and Reassembly ............................................................................... 3-1

3-1. Disassembly and Reassembly ....................................................................................... 3-1

4. Troubleshooting ...................................................................................................... 4-1

4-1. Troubleshooting .............................................................................................................. 4-1

4-2. Alignments and Adjustments ........................................................................................ 4-25

4-3. Factory Mode Adjustments ........................................................................................... 4-26

4-4. White Balance - Calibration .......................................................................................... 4-34

4-5. White Ratio (Balance) Adjustment ................................................................................ 4-35

4-6. Servicing Information .................................................................................................... 4-36

4-7. How To Upgrade Sub Micom ........................................................................................ 4-37

4-8. Mechanical diagram ..................................................................................................... 4-39

4-9. PCB diagram ................................................................................................................ 4-40

5. Wiring Diagram ........................................................................................................ 5-1

5-1. Wiring Diagram ............................................................................................................... 5-1

5-2. Connector ....................................................................................................................... 5-2

5-3. Connector Functions ...................................................................................................... 5-4

5-4. Cables ............................................................................................................................ 5-4

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.

© 2011 Samsung Electronics Co.,Ltd.
All rights reserved.

Printed in Korea

1. Precautions

1. Precautions

1-1. Safety Precautions

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

1-1-1. Warnings

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 Monitor

1. When servicing the 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).

(READING SHOULD)
NOT BE ABOVE 0.5mA

DEVICE
UNDER
TEST

2-WIRE CORD

*ALSO TEST WITH

PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)

TEST ALL

EXPOSED METAL

SURFACES

LEAKAGE
CURRENT
TESTER

EARTH

GROUND

Figure 1-1. Leakage Current Test Circuit

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

rst in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit,

etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat the test.

1-1-4. Product Safety Notices

Some electrical and mechanical parts have special 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 identied by on schematics and parts lists. A substitute
replacement that does not have the same safety characteristics as the recommended replacement part might create

shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever

appropriate.

1-1

1. 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 conict 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 theblades 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. Electrostatically Sensitive Devices (ESD) Precautions

Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly

called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect

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

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 sufcient 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 classied as “anti-static” can generate

electrical charges sufcient 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 oor can generate enough static electricity to damage an ESD.

1-2

1. Precautions

1-4. Installation Precautions

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

2. Keep the power cord away from any heat emitting devices, as a melted covering may cause re 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 re.

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 re 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 re or electric

shock.

6. Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the

antenna falling over may cause re or electric shock.

7. When installing the product, leave enough space (0.4m) between the product and the wall for ventilation purposes.

A rise in temperature within the product may cause re.

1-3

2. Product specications

2-1. Feature & Specications

Model LT20A350

Feature

ሪ DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0, CI Slot

ሪ Brightness : 250 cd/m

ሪ High Contrast Ratio : 1,000:1

ሪ Response Time : 5ms

Item Description

LCD Panel 20 inch

Scanning Frequency Horizontal : 46.3 kHz ~ 70.4 kHz (Automatic)

Display Colors 16.7 million color

Maximum resolution Horizontal : 1600 Pixels

2

Specications

Vertical : 50 Hz ~ 75 Hz (Automatic)

Vertical : 900 Pixels

2. Product specications

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

Input Sync Signal H/V Separate, TTL, P. or N.

Maximum Pixel Clock rate 76.1 MHz (Typ 59.2 MHz)

Active Display
Horizontal/Vertical

AC power voltage & Frequency AC 100V ~ 240V, 50/60 Hz

Power Consumption Under 40W (Under 0.3W, Stand by)

Dimensions
Set (W x D x H)

Weight 6.83 Ibs (3.1kg)_with stand

Stand Weight 0.66 Ibs (0.3kg)

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

Environmental Considerations

17.43 x 9.81 inches (442.8(H) x 249.075(V) mm)

19.2 x 8.4 x 15.2 inches (487.8 x 214.2 x 387.3 mm)_with stand

19.2 x 1.4 x 12.1 inches (487.8 x 35.6 x 306.5 mm)_without stand

6.17 Ibs (2.8kg)_without stand

System DVB-T/C, PAL, SECAM, NT4.43

Sound BG, DK, L/L’, NICAM, MPEG1, DD, DD+, HE-AAC

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

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

Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

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

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

- 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

Note: Dolby Digital +, Game Mode, Film Mode, Energy Saving, Anynet+

2-1

2. Product specications

Model LT22A350 / LT22A550

Feature

ሪ DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0, CI Slot

ሪ Brightness : 250 cd/m2

ሪ High Contrast Ratio : 1,000:1

ሪ Response Time : 5ms

Specications

Item Description

LCD Panel 22inch FHD

Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic)

Vertical : 50 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M color

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 Pixels

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

Input Sync Signal H/V Separate, TTL, P. or N.

Maximum Pixel Clock rate 90 MHz (Typ 75 MHz)

Active Display
Horizontal/Vertical

AC power voltage & Frequency AC 100V ~ 240V, 50/60 Hz

Power Consumption Under 45W (Under 0.3W, Stand by)

Dimensions
Set (W x D x H)

Weight

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

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

18.77 x 10.56 inches (476.64 (H) x 268.11 (V) mm)

20.6 x 9.4 x 16.3 inchs (523.9 x 239.2 x 413.5 mm)_with stand

TA350

20.6 x 1.4 x 12.9 inchs (523.9 x 35.7 x 327.7 mm)_without stand

20.7 x 8.7 x 16.3 inchs (525.5 x 220.6 x 414.4 mm)_with stand

TA550

20.7 x 1.4 x 13.0 inchs (525.5 x 34.8 x 329 mm)_without stand

9.26 Ibs (4.2kg)_with stand

TA350

7.93 Ibs (3.6kg)_without stand

9.70 Ibs (4.4kg)_with stand

TA550

7.93 Ibs (3.6kg)_without stand

System DVB-T/C, PAL, SECAM, NT4.43

Sound BG, DK, L/L’, NICAM, MPEG1, DD, DD+, HE-AAC

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

Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

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

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

- 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

Note: Dolby Digital +, Game Mode, Film Mode, Energy Saving, Anynet+

2-2

Model LT23A350 / LT23A550

Feature

ሪ DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0, CI Slot

ሪ Brightness : 250 cd/m2

ሪ High Contrast Ratio : 1,000:1

ሪ Response Time : 5ms

Specications

Item Description

LCD Panel 23inch FHD

Scanning Frequency Horizontal : 54.2 kHz ~ 83.8 kHz (Automatic)

Vertical : 49 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M color

Maximum resolution "Horizontal : 1920 Pixels

Vertical : 1080 Pixels"

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

Input Sync Signal H/V Separate, TTL, P. or N.

2. Product specications

Maximum Pixel Clock rate 83 MHz (Typ 67.3 MHz)

Active Display
Horizontal/Vertical

AC power voltage & Frequency AC 100V ~ 240V, 50/60 Hz

Power Consumption Under 50W (Under 0.3W, Stand by)

Dimensions
Set (W x D x H)

Weight

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

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

20.07 x 11.29 inches (509.76 (H) x 286.74 (V) mm)

21.9 x 9.4 x 17.0 inchs (555.7 x 239.2 x 431.9 mm)_with stand

TA350

21.9 x 1.2 x 13.6 inchs (555.7 x 31.6 x 345.6 mm)_without stand

20.0 x 8.7 x 17.1 inchs (559.1 x 220.6 x 433.8 mm)_with stand

TA550

20.0 x 1.2 x 13.7 inchs (559.1 x 31.2 x 348.7 mm)_without stand

9.26 Ibs (4.2kg)_with stand

TA350

7.93 Ibs (3.6kg)_without stand

9.70 Ibs (4.4kg)_with stand

TA550

8.16 Ibs (3.7kg)_without stand

System DVB-T/C, PAL, SECAM, NT4.43

Sound BG, DK, L/L’, NICAM, MPEG1, DD, DD+, HE-AAC

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

Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

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

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

- 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

Note: Dolby Digital +, Game Mode, Film Mode, Energy Saving, Anynet+

2-3

2. Product specications

Model LT24A350 / LT24A550

Feature

ሪ DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0, CI Slot

ሪ Brightness : 250 cd/m2

ሪ High Contrast Ratio : 1,000:1

ሪ Response Time : 5ms

Specications

Item Description

LCD Panel 24inch FHD

Scanning Frequency "Horizontal : 54.2 kHz ~ 83.8 kHz (Automatic)

Vertical : 50 Hz ~ 75 Hz (Automatic)"

Display Colors 16.7M color

Maximum resolution "Horizontal : 1920 Pixels

Vertical : 1080 Pixels"

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

Input Sync Signal H/V Separate, TTL, P. or N.

Maximum Pixel Clock rate 89 MHz (Typ 72 MHz)

Active Display
Horizontal/Vertical

AC power voltage & Frequency AC 100V ~ 240V, 50/60 Hz

Power Consumption Under 55W (Under 0.3W, Stand by)

Dimensions
Set (W x D x H)

Weight

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

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

20.92 x 11.77 inches (531.36 (H) x 298.89 (V) mm)

22.8 x 9.4 x 17.5 inchs (578.6 x 239.2 x 444.6 mm)_with stand

TA350

22.8 x 1.3 x 14.1 inchs (578.6 x 33.2 x 359.1 mm)_without stand

22.9 x 8.0 x 17.6 inchs (581.4 x 220.6 x 446.1 mm)_with stand

TA550

22.9 x 1.3 x 14.2 inchs (581.4 x 32.7 x 360.5 mm)_without stand

10.58 Ibs (4.8kg)_with stand

TA350

9.26 Ibs (4.2kg)_without stand

11.02 Ibs (5.0kg)_with stand

TA550

9.48 Ibs (4.3kg)_without stand

System DVB-T/C, PAL, SECAM, NT4.43

Sound BG, DK, L/L’, NICAM, MPEG1, DD, DD+, HE-AAC

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

Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

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

Audio Spec. - MAX Internal 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

Note: Dolby Digital +, Game Mode, Film Mode, Energy Saving, Anynet+

2-4

Model LT27A550

Feature

ሪ DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0, CI Slot

ሪ Brightness : 300 cd/m2

ሪ High Contrast Ratio : 1,000:1

ሪ Response Time : 5ms

Specications

Item Description

LCD Panel 27inch FHD

Scanning Frequency Horizontal : 54.2 kHz ~ 83.8 kHz (Automatic)

Vertical : 49 Hz ~ 75 Hz (Automatic)

Display Colors 16.7M color

Maximum resolution Horizontal : 1920 Pixels

Vertical : 1080 Pixels

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

Input Sync Signal H/V Separate, TTL, P. or N.

2. Product specications

Maximum Pixel Clock rate 83 MHz (Typ 67.3 MHz)

Active Display
Horizontal/Vertical

AC power voltage & Frequency AC 100V ~ 240V, 50/60 Hz

Power Consumption Under 65W (Under 0.3W, Stand by)

Dimensions
Set (W x D x H)

Weight 12.35 Ibs (5.6kg)_with stand

TV System Tuning Frequency Synthesize (Refer to detailed Frequency Table)

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

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

23.53 x 13.23 inches (597.6(H) x 336.15(V) mm)

25.5 x 9.3 x 19.1 inches (648.1 x 235 x 485.7 mm)_with stand

25.5 x 1.3 x 15.7 inches (648.1 x 31.8 x 398.9 mm)_without stand

10.36 Ibs (4.7kg)_without stand

System DVB-T/C, PAL, SECAM, NT4.43

Sound BG, DK, L/L’, NICAM, MPEG1, DD, DD+, HE-AAC

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

Storage temperature : -13˚F ~ 113˚F (-25˚C ~ 45˚C)

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

- 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

Note: Dolby Digital +, Game Mode, Film Mode, Energy Saving, Anynet+

2-5

2. Product specications

2-2. Detail Factory Option

※ If you replace the main board with new one, please change the factory option as well.

The options you must change are "Type" and "Front Color".

2-2-1. LT20A350 / LT22A350 / LT23A350 / LT24A350

Model Name LT20A350 LT22A350 LT23A350 LT24A350

Vendor SEC AUO SEC AUO

Panel

SMPS

Byte Item Adjustment Range EUROPE

Factory

1

Reset

2 Type

3 Local set

4 Model TA350 / TA550 / TA350_WOT TA350 TA350 TA350 TA350

19A6TH0E / 19L6TH0E / 20A6TH0E /

22D6TF0E / 22L6TF0E / 23A6TF0E /

EU / EU_ITALY / EU_GER / EU_FRANCE /

EU_BENELUX / EU_UK / EU_ARMENIA /

NORDIG / AD_AU / AD_NZ / AD_SINGAPOL

/ CIS_RUSIA / CIS_UKRINA / CIS_KAZAKH /

EU_TURKEY / EU_AFRICA / EU_MOROCO
/ EA_VIET / EA_THAI / EA_INA / EA_CHINA

/ EA_INDIA / EA_SRILANKA / EA_NEPAL

/ EA_BANGLA / EA_IRAN / EA_ISRAEL /
EA_EGYPT / EA_LIBYA / EA_CIS / EA_M_
ASIA / EA_IRAQ / EA_ARAB / EA_SAUDI /
EA_PAKISTAN / EA_E_ASIA / EA_AFRICA
/ EA_S_AFRICA / EA_MAL / EA_PHI / ED_

IRAN / ED_VIET / ED_INA / ED_ISRAEL /

CODE BN07-00955A BN07-00937A BN07-00957A BN07-00929A

SPEC LTM200KT08-V M215HW01 VB LTM230HT09-V M240HW01 VB

Vendor PowerNet DYREL PowerNet DYREL

CODE BN44-00449B BN44-00448A BN44-00449B BN44-00450A

SPEC PD23A0_BPN PD22A0_BDY PD23A0_BPN PD27A0_BDY

- - - - -

20A6TH0E 22L6TF0E 23A6TF0E 24L6TF0E

24L6TF0E / 27A6TF0E

EU EU EU EU

5 TUNER SEC_TC / SI_TCS / SI_T2 / SEC_ATC SEC_TC SEC_TC SEC_TC SEC_TC

PBA / SUWON / SESK / SEH / SERK /

6 Ch Table

Front

7

Color

SDMA_AU / SDMA_NZ / SDMA_SG / SEIN /

SAVINA / SIEL_C / SIEL_N / TTSEC / TSED /

TSE / IRAN / SESK-T2 / SUWON-T2 / INL

- NONE NONE NONE NONE

- - - -

2-6

2-2-2. LT22A550 / LT23A550 / LT24A550 / LT27A550

Model Name LT22A550 LT23A550 LT24A550 LT24A550

Vendor AUO SEC AUO SEC

2. Product specications

Panel

SMPS

Byte Item Adjustment Range EUROPE

1 Factory Reset - - - - -

2 Type

3 Local set

4 Model TA550 / TA550 / TA550_WOT TA550 TA550 TA550 TA550

19A6TH0E / 19L6TH0E / 20A6TH0E /

22D6TF0E / 22L6TF0E / 23A6TF0E /

EU / EU_ITALY / EU_GER / EU_FRANCE /

EU_BENELUX / EU_UK / EU_ARMENIA /

NORDIG / AD_AU / AD_NZ / AD_SINGAPOL

/ CIS_RUSIA / CIS_UKRINA / CIS_KAZAKH /

EU_TURKEY / EU_AFRICA / EU_MOROCO
/ EA_VIET / EA_THAI / EA_INA / EA_CHINA

/ EA_INDIA / EA_SRILANKA / EA_NEPAL

/ EA_BANGLA / EA_IRAN / EA_ISRAEL /
EA_EGYPT / EA_LIBYA / EA_CIS / EA_M_
ASIA / EA_IRAQ / EA_ARAB / EA_SAUDI /
EA_PAKISTAN / EA_E_ASIA / EA_AFRICA
/ EA_S_AFRICA / EA_MAL / EA_PHI / ED_

IRAN / ED_VIET / ED_INA / ED_ISRAEL /

CODE BN07-00937A BN07-00957A BN07-00929A BN07-00959A

SPEC M215HW01 VB LTM230HT09-V M240HW01 VB LTM270HT03-V

Vendor DYREL PowerNet DYREL DYREL

CODE BN44-00448A BN44-00449B BN44-00450A BN44-00450A

SPEC PD22A0_BDY PD23A0_BPN PD27A0_BDY PD27A0_BDY

22L6TF0E 23A6TF0E 24L6TF0E 27A6TFOE

24L6TF0E / 27A6TF0E

EU EU EU EU

5 TUNER SEC_TC / SI_TCS / SI_T2 / SEC_ATC SEC_TC SEC_TC SEC_TC SEC_TC

PBA / SUWON / SESK / SEH / SERK /

6 Ch Table

7 Front Color - NONE NONE NONE NONE

SDMA_AU / SDMA_NZ / SDMA_SG / SEIN /

SAVINA / SIEL_C / SIEL_N / TTSEC / TSED /

TSE / IRAN / SESK-T2 / SUWON-T2 / INL

- - - -

2-7

2. Product specications

2-3. Accessories

Product Description Mode Code. No Remark

Remote Control & Batteries

(AAA x 2)

Power Cord ALL 3903-000525

Stand Base

Stand Body

ALL

TA350

TA550

TA350

TA550

AA59-00465A

4301-000121

20" : BN96-16602C

22"/23"/24" : BN96-16601C

22"/23"/24" : BN96-17582B

27" : BN96-17132E

20" : BN96-17598B

22" : BN96-17604B

23"/24" : BN96-17599B

22" : BN96-17583B

23"/24" : BN96-17584B

27" : BN96-17585B

Samsung Electronics

Service center

20" : BN96-17598B

TA350

Screw

(4 x 8)

TA550

D-Sub Cable ALL BN39-00244H

Stereo Cable ALL BN39-01286A

22" : BN96-17604B

23"/24" : BN96-17599B

22" : BN96-17583B

23"/24" : BN96-17584B

27" : BN96-17585B

2-8

2. Product specications

Product Description Mode Code. No Remark

Component/AV Gender ALL BN39-01154W

SCART Gender ALL BN39-01154F

CI Card Gender ALL 3709-001663

Samsung Electronics

Service center

User Manual ALL BN46-00077A

Quick Setup Guide ALL BN68-03605*

Cleaning Cloth ALL BN63-01798B

Warranty Card / Safety

Guide Manual

(Not available in all

locations)

ALL

AA68-03242V
BN68-00226R
BN68-01925R
BN68-03548A

2-9

2. Product specications

2-4. New Features explanation

2-4-1. Anynet+

 What is Anynet+?

Anynet+ is a function that enables you to control all connected Samsung devices that support Anynet+ with your
Samsung TV’s remote. The Anynet+ system can be used only with Samsung devices that have the Anynet+ feature.
To be sure your Samsung device has this feature, check if there is an Anynet+ logo on it.

N For the method of connecting external devices, refer to the supported user manual.

N NOTE

●Connect the Optical cable between the DIGITAL AUDIO OUT (OPTICAL) jack on your TV and the Digital Audio Input
on the Home Theatre.

● When following the connection above, the Optical jack only outputs 2 channel audio. You will only hear sound from

the Home Theatre’s Front Left and Right speakers and the subwoofer. If you want to hear 5.1 channel audio, connect
the DIGITAL AUDIO OUT (OPTICAL) jack on the DVD / Satellite Box (i.e. Anynet Device 1 or 2) directly to the
Amplier or Home Theatre, not the TV.

● You can connect only one Home Theatre.

● You can connect an Anynet+ device using the HDMI cable. Some HDMI cables may not support Anynet+ functions.

● Anynet+ works when the AV device supporting Anynet+ is in the standby or on status.

● Anynet+ supports up to 12 AV devices in total. Note that you can connect up to 3 devices of the same type.

TOOLST

 Anynet+ Menu

The Anynet+ menu changes depending on the type and status of the Anynet+ devices connected to the TV.

Anynet+ Menu Description

View TV Changes Anynet+ mode to TV broadcast mode.

Device List Shows the Anynet+ device list.

(device_name) MENU

(device_name) TOOLS

(device_name) Title Menu

Recording: (*recorder)

Stop Recording: (*recorder) Stops recording.

Receiver Sound is played through the receiver.

If more than one recording device is connected, they are displayed as (*recorder) and if only one recording device is
connected, it will be represented as (*device_name).

Shows the connected device menus. E.g. If a DVD recorder is connected, the disc
menu of the DVD recorder will appear.

Shows the play menu of the connected device. E.g. If a DVD recorder is connected,
the play menu of the DVD recorder will appear.

Shows the title menu of the connected device. E.g. If a DVD recorder is connected, the
title menu of the DVD recorder will appear.

N Depending on the device, this menu may not be available.

Starts recording immediately using the recorder. (This is only available for devices that
support the recording function.)

 Setting Up Anynet+

► Anynet+ (HDMI-CEC)

Anynet+ (HDMI-CEC) (Off / On): To use the Anynet+ Function, Anynet+ (HDMI-CEC) must be set to On.

N When the Anynet+ (HDMI-CEC) function is disabled, all the Anynet+ related operations are deactivated.

Auto Turn Off (No / Yes): Setting an Anynet+ Device to turn off automatically when the TV is turned off.

N If Auto Turn Off is set to Yes , running external devices will turn off at the same time as the TV powers off.

However, a device may not turn off if recording is in progress.

N May not be enabled depending on the device.

2-10

2. Product specications

 Switching between Anynet+ Devices

1. Press the TOOLS button, then select Anynet+ (HDMI-CEC).

2. Anynet+ devices connected to the TV are listed in Device List.

N If you cannot nd a device you want, press the A button to refresh the list.

3. Select a device and press the ENTEREE button. You can switch to the selected device.

N Only when you set Anynet+ (HDMI-CEC) to On in the System menu, the Device List menu appears.

● Switching to the selected device may take up to 2 minutes. You cannot cancel the operation during the
switching operation.

● If you have selected external input mode by pressing the SOURCE button, you cannot use the Anynet+
function. Make sure to switch to an Anynet+ device by using the Device List.

 Recording

You can make a recording of a TV Programme using a Samsung recorder.

1. Select Recording.

N When there are more than two recording devices

● When multiple recording devices are connected, the recording devices are listed. Select one recording

device in the Device List.

● When the recording device is not displayed, select Device List and press the A button to searchdevices.

2. Press the EXIT button to exit.

N You can record the source streams by selecting Recording: (device_name).

N Pressing the ∏(REC) button will record whatever you are currently watching. If you are watching video from

another device, the video from the device is recorded.

N Before recording, check whether the antenna jack is properly connected to the recording device. To properly

connect an antenna to a recording device, refer to the recording device’s users manual.

 Listening through a Receiver

You can listen to sound through a receiver (i.e Home Theatre) instead of the TV speaker.

1. Select Receiver and set to On.

2. Press the EXIT button to exit.

N If your receiver supports audio only, it may not appear in the device list.

N The receiver will work when you have properly connected the optical in jack of the receiver to the DIGITAL

AUDIO OUT (OPTICAL) jack of the TV.

N When the receiver (i.e Home Theatre) is set to On, you can hear sound output from the TV’s Optical jack.

When the TV is displaying a DTV (air) signal, the TV will send out 5.1 channel sound to the receiver. When
the source is a digital component such as a DVD and is connected to the TV via HDMI, only 2 channel sound
will be heard from the receiver.

N NOTE

 ● You can only control Anynet+ devices using the TV remote control, not the buttons on the TV.

 ● The TV remote control may not work under certain conditions. If this occurs, reselect the Anynet+ device.

 ● The Anynet+ functions do not operate with other manufacturers’ products.

2-11

2. Product specications

 Troubleshooting for Anynet+

Problem Possible Solution

• Check if the device is an Anynet+ device. The Anynet+ system supports Anynet+
devices only.

Anynet+ does not work.

Anynet+ does not work.

I want to start Anynet+.

I want to exit Anynet+.

The message

"Connecting to Anynet+
device..."appears on the

screen.

The Anynet+ device does not
play.

The connected device is not
displayed.

The TV Programme cannot be

recorded.

The TV sound is not output
through the receiver.

• Only one receiver (home theatre) can be connected.

• Check if the Anynet+ device power cord is properly connected.

• Check the Anynet+ device’s Video/Audio/HDMI cable connections.

• Check whether Anynet+ (HDMI-CEC) is set to On in the System menu.

• Check whether the TV remote control is in TV mode.

• Check whether the remote control is Anynet+ compatible.

• Anynet+ does not work in certain situations. (Searching channels, operating My

Downloads or Plug & Play (initial setup), etc.)

• When connecting or removing the HDMI cable, please make sure to search devices
again or turn your TV off and on again.

• Check if the Anynet+ Function of Anynet+ device is set on.

• Check if the Anynet+ device is properly connected to the TV and check if the

Anynet+(HDMI-CEC) is set to On in the System menu.

• Press the TOOLS button to display the Anynet+ menu and select a menu you want.

• Select View TV in the Anynet+ menu.

• Press the SOURCE button on the TV remote control and select a device other than
Anynet+ devices.

• Press < CH >, CH LIST , PRE-CH, and FAV.CH to change the TV mode. (Note that
the channel button operates only when a tuner-embedded Anynet+ device is not
connected.)

• You cannot use the remote control when you are conguring Anynet+ or switching to
a view mode.

• Use the remote control when the Anynet+ setting or switching to view mode is
complete.

• You cannot use the play function when Plug & Play (initial setup) is in progress.

• Check whether or not the device supports Anynet+ functions.

• Check whether or not the HDMI cable is properly connected.

• Check whether Anynet+ (HDMI-CEC) is set to On in the System menu.

• Search Anynet+ devices again.

• You can connect an Anynet+ device using the HDMI cable only. Some HDMI cables
may not support Anynet+ functions.

• If it is terminated by an abnormal situation such as disconnecting the HDMI cable or

power

cord or a power failure, please repeat the device scan.

• Check whether the antenna jack on the recording device is properly connected.

• Connect the optical cable between TV and the receiver.

2-12

2. Product specications

2-4-2. My Contents

 Using the My Contents

Enjoy photos, music and/or movie files saved on a USB Mass Storage Class (MSC) device and/or your PC.

1. Press the CONTENT button to select My Contents.

2. Press u/d button to select desired menu (Videos, Photos,

Music), then press the ENTERE button.

* It may differ depending on the model.

 Connecting a USB Device

1. Turn on your TV.

2. Connect a USB device containing photo, music and/or

movie les to the USB jack on the side of the TV.

3. When USB is connected to the TV, popup window
appears. Then you can select Connected Device.

* It may differ depending on the model.

N It might not work properly with unlicensed multimedia les.

N Need-to-Know List before using My Contents.

• MTP (Media Transfer Protocol) is not supported.

• The le system supports FAT16, FAT32 and NTFS.

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

• My Contents only supports USB Mass Storage Class (MSC) devices. MSC is a Mass Storage Class Bulk-Only
Transport device. Examples of MSC are Thumb drives, Flash Card Readers and USB HDD (USB HUB are not
supported). Devices should be connected directly to the TV’s USB port.

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

• USB (HDD) is not supported.

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

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

• The maximum supported JPEG resolution is 15360X8640 pixels.

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

• If the les are sorted by Basic View, up to 1000 les can be displayed in each folder.

• MP3 les with DRM that have been downloaded from a non-free site cannot be played. Digital Rights
Management (DRM) is a technology that supports the creation, distribution and management of the content
in an integrated and comprehensive way, including the protection of the rights and interests of the content
providers, the prevention of the illegal copying of contents, as well as managing billings and settlements.

• If more than 2 PTP devices are connected, you can only use one at a time.

• If more than two MSC devices are connected, some of them may not be recognized. A USB device that requires
high power (more than 500mA or 5V) may not be supported. If an over-power warning message is displayed
while you are connecting or using a USB device, the device may not be recognized or may malfunction.

• If the TV has been no input during time set in Auto Protection Time, the Screensaver will run.

2-13

2. Product specications

ACBD

• The power-saving mode of some external hard disk drives may be released automatically when connected to
the TV.

• If a USB extension cable is used, the USB device may not be recognized or the les on the device may not be
read.

• If a USB device connected to the TV is not recognized, the list of les on the device is corrupted or a le in the
list is not played, connect the USB device to the PC, format the device and check the connection.

• If a le deleted from the PC is still found when My Contents is run, use the “Empty the Recycle Bin” function on
the PC to permanently delete the le.

 Screen Display

Move to the desired file using the ◄/►/▲/▼ buttons and then press the ENTERE or  (Play) button.
The file is played. My Contents screen may differ depending on the way to enter the screen.

Information:

You can ascertain the

selected device name,

contents mode, folder/

file name, page and

sorting list.

File List Section:

You can confirm the
files and groups that are
sorted by category.

Contents mode / Device name:

You can select the desired

Contents mode or Device name.
When PC is connected, you can

select PC through PC Share

Manager.

Tools R Return

T

Operation Buttons:

-

Yellow (Edit Mode); Selects the desired music. The check box is

shown in the screen to check the music you want. It is only available in
Music.

(Jump Page); Move to next or previous page.

- �

- T Tools; Displays the option menu.

- R Return; Move to the previous step.

2-14

2. Product specications

● Videos

01. Playing Video

1. Press the ◄/►/▲/▼ button to select the desired video in

the le list.

2. Press the ENTERE button or  (Play) button.

– The selected le name is displayed on the top with its

playing time.

– If video time information is unknown, play time and

progress bar are not displayed.

– During video playback, you can search using ◄ and ►

button.

– You can use  (REW) and μ (FF) buttons during

playback.

N In this mode, you can enjoy movie clips contained on a Game, but you cannot play the Game itself.

● Supported Subtitle Formats

Name File extension Format

MPEG-4 time-based text .ttxt XML

SAMI .smi HTML

SubRip .srt string-based

SubViewer .sub string-based

Micro DVD .sub or .txt string-based

● Supported Video Formats

File

Extention

*.avi

*.mkv

*.asf ASF

*.wmv ASF Window Media Video v9 1920 x 1080 6 ~ 30 25 WMA

*.mp4 MP4

*.3gp 3GPP

*.vro

*.mpg

*.mpeg

*.ts

*.tp

*.trp

Container Video Codec Resolution

Divx 3.11/4.x/5.1/6.0 1920 x 1080 6 ~ 30 8

AVI

MKV

VRO

VOB

PS

TS

XviD 1920 x 1080 6 ~ 30 8

H.264 BP/MP/HP 1920 x 1080 6 ~ 30 25

MPEG4 SP/ASP 1920 x 1080 6 ~ 30 8

Motion JPEG 640 x 480 6 ~ 30 8

Divx 3.11/4.x/5.1/6.0 1920 x 1080 6 ~ 30 8

XviD 1920 x 1080 6 ~ 30 8

H.264 BP/MP/HP 1920 x 1080 6 ~ 30 25

MPEG4 SP/ASP 1920 x 1080 6 ~ 30 8

Motion JPEG 640 x 480 6 ~ 30 8

H.264 BP/MP/HP 1920 x 1080 6 ~ 30 25

XVID 1920 x 1080 6 ~ 30 8

H.264 BP/MP/HP 1920 x 1080 6 ~ 30 25

MPEG4 SP/ASP 1920 x 1080 6 ~ 30 8

MPEG2 1920 x 1080 24/25/30 30

MPEG1 1920 x 1080 24/25/30 30

MPEG1 1920 x 1080 24/25/30 30

MPEG2 1920 x 1080 24/25/30 30

H.264 1920 x 1080 6 ~ 30 25

MPEG2 1920 x 1080 24/25/30 30

H.264 1920 x 1080 6 ~ 30 25

VC1 1920 x 1080 6 ~ 30 25

Frame rate

(fps)

Bit rate

(Mbps)

Audio Codec

MP3/AC3

/LPCM

/ADPCM

/DTS Core

MP3/AC3

/LPCM

/ADPCM

/WMA

MP3/ADPCM /AACMPEG4 SP/ASP 1920 x 1080 6 ~ 30 8

ADPCM/AAC

/HE-AAC

AC3/MPEG

/LPCM

AC3/MPEG

/LPCM/AAC

AC3/AAC

/MP3/DD+

/HE-AAC

2-15

2. Product specications

02. Other Restrictions

N NOTE

• If there are problems with the contents of a codec, the codec will not be supported.

• If the information for a Container is incorrect and the le is in error, the Container will not be able to play correctly.

• Sound or video may not work if the contents have a standard bit rate/frame rate above the compatible Frame/sec listed in the
table above.

• If the Index Table is in error, the Seek (Jump) function is not supported.

• The videos over 10Mbps(bit rate) may be interrupted.

Video Decoder Audio Decoder

• Supports up to H.264, Level 4.1

• H.264 FMO / ASO / RS, VC1 SP / MP / AP L4 and
AVCHD are not supported.

• XVID, MPEG4 SP, ASP:
– Below 1280 x 720: 60 frame max
– Above 1280 x 720: 30 frame max

• GMC is not support.

• Supports up to WMA 7, 8, 9, STD, 9 PRO

• WMA Lossless, Voice Lossless, Voice is not supported.

• WMA sampling rate 22050Hz mono is not supported.

2-16

2. Product specications

● Music

01. Playing Music

1. Press the ◄/►/▲/▼ button to select the desired Music in

the le list.

2. Press the ENTERE button or  (Play) button.

– You can use  (REW) and μ (FF) buttons during

playback.

N Only displays the les with MP3 and PCM le extension. Other le extensions are not displayed, even if they are

saved on the same USB device.

N If the sound is abnormal when playing MP3 les, adjust the Equalizer in the Sound menu. (An over-modulated

MP3 le may cause a sound problem.)

02. Playing selected music

1. Press the C (Edit Mode) button.

2. Select the desired music.

– The check box appears to the left of the selected les.

3. Press the TOOLS button and select Play Selected Contents.

– You can select or deselect all music pressing the Select All/Deselect All.

2-17

2. Product specications

● Photos

01. Viewing a Photo (or Slide Show)

1. Press the ◄/►/▲/▼ button to select the desired Music in

the le list.

2. Press the ENTERE button or  (Play) button.

– When a selected photo is displayed, press the ENTERE

button to start the slide show.

– During the slide show, all les in the le list will be

displayed in order.

N When you press the  (Play) button in the le list, slide show will be started immediately.

N Music les can be automatically played during the Slide Show if the Background Music is set to On.

N The BGM Mode cannot be changed until the BGM has nished loading.

2-18

 My Contents - Additional Functions

01. Videos/Music/Photos Play Option menu

During playing a le, press the TOOLS button.

Category Operation Videos Music Photos

Title You can move the other le directly.

Time Search

Shufe Mode You can play the music randomly.

Repeat Mode You can play movie and music les repeatedly.

Picture Size You can adjust the picture size to your preference.

Picture Mode You can adjust the picture setting.

SRS TheaterSound You can adjust the sound setting.

Subtitle Language

Subtitle Setting

Start Slide Show/Pause Slide Show You can start or pause a Slide Show.

Slide Show Speed You can select the slide show speed during the slide show.

Background Music You can on/off background music when watching a Slide Show.

Background Music Setting You can select background music when watching a Slide Show.

Zoom You can zoom into images in full screen mode.

Rotate You can rotate images in full screen mode.

Information You can see detailed information about the played le.

You can search the video using l and r button at one minute interval or
entering the number directly.

You can enjoy video in one of supported languages as required. The
function is only enabled when stream-type les which support multiple
audio formats are played.

You can play the video with Subtitles. This function only works if the
subtitles are the same le name as the video.

2. Product specications

c

c

c

c c

c

c c

c c c

c

c

c

c

c

c

c

c

c c c

2-19

3. Disassembly and Reassembly

3. Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the Monitor.

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

3-1. Disassembly and Reassembly

Cautions: 1. Disconnect the Monitor from the power source before disassembly.

2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.

Description Picture Description Screws

Place the TV face down on cushioned table.

1

3-1

3. Disassembly and Reassembly

Description Picture Description Screws

Remove the 2 screws of the set.

2

Remove stand.

6001-002621

Remove the 6 screws of rear-cover.

3

Lift up the rear-cover.

4

6003-001086

3-2

Description Picture Description Screws

Remove the left and right speaker.

5

Remove the 4 screws of main board.

6

Remove the 3 screws of SMPS board.

(20" : 4 screws)

Remove bracket link.

3. Disassembly and Reassembly

6003-000115

Lift up the panel.

7

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

3-3

3. Disassembly and Reassembly

Screw Size

Code No. A (mm) B (mm) C (mm)

6003-001003 8.0±0.2 8.0-0.6 3.83~3.98

6003-001086 6.3-0.5 12.0-0.8 2.85~2.95

6003-000115 6.3-0.5 6.0-0.8 2.85~2.95

3-4

4. Troubleshooting

4-1. Troubleshooting

4-1-1. Previous check

1. Check the various cable connections rst.

• Check to see if any cables are damaged or burnt.

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

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

2. Check the power input to the Main Board.

4. Troubleshooting

4-1

4. Troubleshooting

4-1-2. No Power

- The LEDs on the front panel do not work when connecting the power cord.

Symptom

Major

checkpoints

- The SMPS relay does not work when connecting the power cord.

- The units appears to be dead.

The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are
improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:

- Check the internal cable connection status inside the unit.

- Check the fuses of each part.

- Check the output voltage of SMPS.

- Replace the Main Board.

MAIN BOARDSMPS BOARD

Diagnostics

Lamp(Backlight) Off,

power indicator LED on?

Yes

Lamp(Backlight) Off,

power indicator LED on ?

Yes

Does proper Stand-By DC A5V

appear at VIA - A5V_PW ?

Yes

Does proper Main DC B13V, B5V

appear at VIA - B13V_PW, B5V_PW ?

Yes

Does proper DC A3.3V

appear at VIA - A3.3V_PW ?

Yes

No

No

No

No

No

Change the 14p power cable.

Change INVERTER/BALANCE B'D.

Change the Main Assy.

4-2

Does proper B3.3V, B1.5V appear at

VIA - B3.3V_PW, B1.5V_PW

Yes

No

Next Page..

Yes

B5V_PW

B3.3V_PW

B13V_PW

A3.3V_PW

A5V_PW

B1.5V_PW

4. Troubleshooting

Does proper DC B13V appear at

LVDS connector Pin #1~5 of Panel ?

No

Yes

Diagnostics

Does proper DC B13V

appear at F1 of T-con b'd?

No

Yes

A power is supplied to set?

No

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

Main Board_Bottom

Change the LVDS cable.

Change the T-con b'd

Check a other function.

(No picture part)

Replace a LCD Panel.

4-3

4. Troubleshooting

4-1-3. No Video (Analog PC signal)

Symptom

Major

checkpoints

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

- Check the PC source

- Check the Arsenal, Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'

or 'DPMS mode'

Diagnostics

1

2

Yes

Check the PC source and

check the connection of D-SUB ?

Yes

Does the signal appear at

PIN - R, G, B, HS, VS (R, G, B, H, V) ?

Yes

Does the digital data appear at

TP-E_TXCLK+, E_TXCLK- ?

Yes

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

No

No

No

No

Input the analog PC signal properly.

Check CN401, PC cable.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-4

Main Board_Top

4. Troubleshooting

Main Board_Bottom

4-5

4. Troubleshooting

 WAVEFORMS

1

2

PC input (V-sink , H-sink , R/G/B)

LVDS output

4-6

4-1-4. No video (HDMI 1, 2, 3, 4 - Digital signal)

4. Troubleshooting

Symptom

Major

checkpoints

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

- Check the HDMI source.

- Check the HDMI switch, Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'.

Diagnostics

Yes

Check the HDMI source and

check the connection of HDMI cable ?

Yes

Does the signal appear at

CN601 (Pin#12 , #7 )(HDMI1)

3

2

CN604 (Pin#12 , #7 )(HDMI2)
CN602 (Pin#12 , #7 )(HDMI3)
CN603 (Pin#12 , #7 )(HDMI4)

(HDMI RX_Clk , RX_Data) ?

Yes

Does the digital data appear at

TP-E_TXCLK+, E_TXCLK- ?

Yes

Check the LVDS cable?

Replace the LCD panel?

No

No

No

No

Input the HDMI signal properly.

Check CN601, CN604

CN602, CN603.

Check HDMI cable.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-7

4. Troubleshooting

Main Board_Top

Main Board_Bottom

4-8

 WAVEFORMS

4. Troubleshooting

3

2

HDMI input (RX_Data, RX_Clk)

LVDS output

4-9

4. Troubleshooting

4-1-5. No Video (Tuner_CVBS)

Symptom

Major

checkpoints

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

- Check the Tuner CVBS source.

- Check the Tuner, Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'

Diagnostics

Yes

Check the RF source and

check the connection of RF cable ?

Yes

Does the DC B5V_TU_PW, B33V_TU_PW

appear at #3, #5 Pin of Tuner?

Yes

Does the digital data appear at

2

TP-E_TXCLK+, E_TXCLK- ,

O_TXCLK+, O_TXCLK-?

Yes

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

No

No

No

No

Input the RF source properly.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-10

Main Board_Top

4. Troubleshooting

Main Board_Bottom

4-11

4. Troubleshooting

 WAVEFORMS

LVDS output

2

4-12

4-1-6. No Video (Tuner DTV)

4. Troubleshooting

Symptom

Major

checkpoints

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

- Check the DTV source.

- Check the Tuner, Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'

Diagnostics

Yes

Check the RF source and

check the connection of RF cable ?

Yes

Check the 'signal strength' in Self Diagnosis

menu Strength is enough ?

Yes

Does the DC B5V_TU_PW, B33V_TU_PW

appear at #3, #5 Pin of Tuner ?

Yes

Does the digital data appear at

2

TP-E_TXCLK+, E_TXCLK- ,

O_TXCLK+, O_TXCLK-?

Yes

No

No

No

No

Input the RF source properly.

Check the D-TV source.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

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

No

Please, Contact Tech support.

4-13

4. Troubleshooting

Main Board_Top

Main Board_Bottom

4-14

 WAVEFORMS

4. Troubleshooting

2

LVDS output

4-15

4. Troubleshooting

4-1-7. No Video (Video CVBS)

Symptom

Major

checkpoints

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

- Check the Video CVBS source

- Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'.

Diagnostics

Yes

Check the video source and

check the connection of video cable?

Yes

4

2

Does the CVBS data appear at

PIN - COMP1_Y_CVBS, COMP2_Y_CVBS?

Yes

Does the digital data appear at

TP-E_TXCLK+, E_TXCLK- ,

O_TXCLK+, O_TXCLK-?

Yes

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

No

No

No

No

Input the video source properly.

Check CN503.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-16

Main Board_Bottom

4. Troubleshooting

Main Board_Bottom

4-17

4. Troubleshooting

 WAVEFORMS

CVBS OUT (Grey Bar)

4

LVDS output

2

4-18

4-1-8. No Video (Component)

4. Troubleshooting

Symptom

Major

checkpoints

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

- Check the Component source

- Check the Main Chipset.

- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

MAIN BOARDSMPS BOARD

Power indicator LED is off.

Lamp(Backlight) on, no video ?

No

Check a set in the 'Stand-by mode'

Diagnostics

5

2

Yes

Check the component source and

check the connection of

component cables(Y,Pb,Pr)?

Yes

Does the component data appear at

PIN - COMP2_Y_CVBS, COMP2_PB,

COMP2_PR?

Yes

Does the digital data appear at

TP-E_TXCLK+, E_TXCLK- ,

O_TXCLK+, O_TXCLK-?

Yes

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

No

No

No

No

Input the component source properly.

Check CN503.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-19

4. Troubleshooting

Main Board_Bottom

Main Board_Bottom

4-20

 WAVEFORMS

4. Troubleshooting

5

2

Compnent_Y (Gray scale) / Pb / Pr (Color bar)

LVDS output

4-21

4. Troubleshooting

4-1-9. No Sound

Symptom

Major

checkpoints

- Video is normal but there is no sound..

- When the speaker connectors are disconnected or damaged.

- When the sound processing part of the Main Board is not functioning.

- Speaker defect.

MAIN BOARDSMPS BOARD

Check the source and

check the connection of sound cable

(Comp/AV/PC/DVI to HDMI)?

Yes

No

Input the sound source properly.

Diagnostics

Does the sound data appear at

PIN - COMP2_SR_IN,COMP2_SL_IN

VIA - PC_DVI_SR_IN, PC_DVI_SL_IN (PC/

DVI)?

Yes

Does the DC B12VS

appear at CN201 PIN 7,9 - B12VS_PW ?

Yes

7

Does the sound data appear at

TP - SPK_ L-, SPK_L+, SPK_R-, SPK_R+?

Yes

Replace speaker ?

No

No

No

No

Check CN503, CN402.
Change the Main Assy.

Change the Main Assy.

Check IC1111 (X5).

Change the Main Assy.

Please, Contact Tech support.

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

4-22

Main Board_Top

E_TXCLK+/-

SPK

R+

R-

L+

B12VS_PW

COMP2_SL_IN

COMP2_SR_IN

PC_DVI_SR_IN

PC_DVI_SL_IN

4. Troubleshooting

Main Board_Bottom

4-23

4. Troubleshooting

 WAVEFORMS

Speaker out

7

4-24

4. Troubleshooting

4-2. Alignments and Adjustments

4-2-1. General Alignment Instuction

1. Usually, a color monitor needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.

2. Use the specied 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 specied 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 against shock hazard, use an isolation transformer.

4-25

4. Troubleshooting

4-3. Factory Mode Adjustments

4-3-1. Entering Factory Mode

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

- If you do not have Factory remote - control

INFOPower OFF MENU MUTE

4-3-2. How to Access Service Mode

Using the Customer Remote

1. Turn the power off and set to stand-by mode.

2. Press the remote buttons in this order; POWER OFF- INFO - MENU - MUTE to turn the set on.

3. The set turns on and enters service mode. This may take approximately 20 seconds.

4. Press the Power button to exit and store data in memory.

- If you fail to enter service mode, repeat steps 1 and 2 above.

5. Initial SERVICE MODE DISPLAY State

Option

Control

SVC

Expert

ADC/WB

Advanced

T-MSTMD♣♣C-XXXX

T-MSTMD♣♣S-XXXX

EDID SUCCESS

HDCP SUCCESS

CALIB : AV / COMP / PC / HDMI /

Option : XXXX XXXX

T-MSXDXX-XXXX

SDAL-X.XX.X.X

RFS : "Mstar-X5 XXXX"

20XX-XX-XX

FUNC-TAG-ERR

Type : XXXXXXXX

Model : XXXXXXXX

CIP SUCCESS LOCK X

Factory Data Ver : XX

EERC Version : XXX

DTP-AP-COMP-XXX

DTP-BP-HAL-XXXX

DTP-BP-XXXX-XX

Date Of Purchase : XX/XX/XXXX

♣ ♣ OPTION (Option-Local Set)

EU EU/EU_x/NORDIG/CIS_x/AD_x

AA EA_x/ED_x

x How to enter the hidden factory mode.

a. into the factory mode
b. move the tap to Advanced
c. key input : 0 + 0 + 0 + 0
xx hidden menu : Advanced

6. Buttons operations withn Service Mode

Menu Full Menu Display/Move to Parent Menu

Direction Keys /

Direction Keys /

Source

Item Selection by Moving the Cursor

Data Increase / Decrease for the Selected Item

Cycles through the active input source that are connected to the unit

4-26

4-3-3. Factory Data

Option

Factory Name Data Range Use

Factory Reset

Type

Local Set EU

19A6TH0E / 19L6TH0E / 20A6TH0E / 22D6TF0E /

22L6TF0E / 23A6TF0E / 24L6TF0E / 27A6TF0E

EU/EU_ITALY/EU_GER/EU_FRANCE

/EU_BENELUX/EU_UK/EU_ARMENIA/NORDIG

/AD_AU/AD_NZ/AD_SINGAPOL/CIS_RUSIA

/CIS_UKRINA/CIS_KAZAKH/EU_TURKEY

/EU_AFRICA/EU_MOROCO/EA_VIET/EA_THAI

/EA_INA/EA_CHINA/EA_INDIA/EA_SRILANKA

/EA_NEPAL/EA_BANGLA/EA_IRAN/EA_ISRAEL

/EA_EGYPT/EA_LIBYA/EA_CIS/EA_M_ASIA

/EA_IRAQ/EA_ARAB/EA_SAUDI/EA_PAKISTAN

/EA_E_ASIA/EA_AFRICA/EA_S_AFRICA/EA_MAL

/EA_PHI/ED_IRAN/ED_VIET/ED_INA/ED_ISRAEL

/COLOMBIA/TAIWAN

4. Troubleshooting

Select Panel Type

 : inch
 : vendor
 : refresh
 : POL
 : resolution
 : multi
 : BLU

Select Area

Model TA550 TA350 / TA550 / TA350_WOT Select Model

EU/AU(DVB-TC/DVB-T) :
SEC_TC
Satellite(DVB-TCS) : SI_TCS
UK T2(DVB-T2C) : SI_T2
Ready : SEC_ATC

TUNER SEC_TC

Ch Table

Front Color

SEC_ATSC/SEC_TC/ALPS_TC/SI_TCS/SI_T2

/SEC_ISDB/SEC_ATC/SI_ATC/SI_TW

PBA/SUWON/SESK/SEH/SERK/SDMA_AU

/SDMA_NZ/SDMA_SG/SEIN/SAVINA/SIEL_C

/SIEL_N/TTSEC/TSED/TSE/IRAN/SESK-T2

/SUWON-T2/INL

P-S-C-BK / P-S-R-BK / P-S-BK / P-S-B-BK / P-T-R-

BK / P-T-C-BK / P-T-W-Bn / P-T-W-Gy / P-T-M-Bn

/ P-T-C-Gy / P-T-R-Gy / P-W-Milk / P-W-M-Wt /
P-W-D-Gy / P-W-Vio / L-S-C-BK / L-S-R-BK / L-S­BK / L-S-B-BK / L-T-R-BK / L-T-C-BK / L-T-W-Bn /

L-T-W-Gy / L-T-M-Bn / L-T-C-Gy / L-T-R-Gy / L-W-

Milk / L-W-M-Wt / L-W-D-Gy / L-W-Vio / U-S-C-BK /

U-S-R-BK / U-S-BK / U-S-B-BK / U-T-R-BK / U-T-C-

BK / U-T-W-Bn / U-T-W-Gy / U-T-M-Bn / U-T-C-Gy

/ U-T-R-Gy / U-T-BL-M / U-T-BK-M / U-TC-L-M /

U-W-Milk / U-W-M-Wt / U-W-D-Gy / U-W-Vio

4-27

4. Troubleshooting

Control

Factory menu Name

EDID

Sub Option

Shop Option

Sound

Factory Name Data Range Use

EDID

EDID ON/OFF OFF

EDID WRITE ALL …

EDID WRITE PC …

EDID WRITE HDMI …

EDID WRITE HDMI1 …

EDID WRITE HDMI2 …

EDID WRITE HDMI3 …

EDID WRITE HDMI4 …

EDID VER …

EDID PORT …

EDID WRITE DVI …

Sub Option

RS-232 Jack UART Debug/Logic/UART

Watchdog ON ON/OFF

WD Count 0 255

Download EDID data to EEPROM.

1. Set "ON" of EDID ON/OFF

2. Go EDID WRITE ALL and Push

Enter or  button.

3. If You See Success message, SET

"OFF" of EDID ON/OFF

Case of HDMI 1.2 EDID Service

1. Go EDID VER and Set HDMI 1.2

2. Go EDID PORT and Select HDMI

port

Select Setting of UART port.
Initial value is "UART"

Select Watchdog.
Initial value is "ON"

Watchdog Count.
Read Only.

Dimm Type EXT xed

Lvds Format JEIDA JEIDA/VESA/19INCH

OTN Server Type operating operating/development

OTN Test Server OFF OFF/ A/B/C/D/E Zone

OTN Support ON ON/OFF

OTN Reset not modifyed

OTN Duration OFF ON/OFF

OTN Fail Test OFF ON/OFF

View Log not modifyed

4-28

Select Dimming Type.
Initial value is "EXT"

Select LVDS format.
MFM : "VESA"

4. Troubleshooting

KEY SENSITIVITY 34 0~255

WIFI REGION E A~V

TA350 : 32
TA550 : 34

Local Set WiFi

EU E

EU_Italy E

EU_Germany E

EU_France E

EU_Benelux E

EU_UK E

EU_Armenia A

NORDIG E

AD_Au E

AD_NZ H

AD_Singapol F

CIS_Rusia C

CIS_Ukraina B

CIS_Kazakhstan C

EU_Turkey A

EU_Africa H

EU_Moroco A

EA_Vietnam F

EA_Thai B

EA_INA N

EA_China N

EA_India F

EA_Srilanka R

EA_Nepal J

EA_Bangladesh F

EA_Iran M

EA_Israel H

EA_Egypt F

EA_Libya E

EA_CIS A

EA_MidAsia A

EA_Iraq A

EA_Arab E

EA_Saudi O

EA_Pakistan M

EA_EastAsia A

EA_Africa A

EA_S_Africa E

EA_Malaysia O

EA_PHI B

ED_Iran M

ED_Vietnam F

ED_INA N

ED_Israel H

4-29

4. Troubleshooting

Hotel Option

Hotel Hospitality OFF

Shop Option

Shop Mode OFF ON/OFF

Exhibition Mode OFF ON/OFF

Sound

High Devi OFF ON/OFF

Carrier_Mute OFF ON/OFF

Speaker Delay Normal 10 0~255 Audio delay for Lipsync

Pilot Level High Thld 0x28h 0x00~0xff

Pilot Level Low Thld 0x10h 0x00~0xff

Control for ATV sound of stereo
/multiplex

Control for ATV sound of stereo
/multiplex

Speaker EQ ON ON/OFF Control for sound precision

SVC

Factory menu Name Data Range Use

Test Pattern

Panel Auto Setting

Panel Display Time 0Hr

Logic Usb D/L off

Tuner Status

T-CON Usb Download

Set ONSub micom upgrade

MICOM UPGRADE off

BT ADDRESS 0

BT UPGRADE

SVC Reset

,after upgrade Main Micom
(over 5 minutes)

Factory Name Data Range Use

Test Pattern

Pattern Sel OFF

Logic Pattern Sel … Not modied

Logic Level Sel … Not modied

TUNER STATUS

DVB

OFF/White/Black/Red/Green/Blue/
Cross/OneDot/ColorBar/GrayStep

"Test for Input of Scaler.
If you can see pattern well, there
is problem at input of Scaler."

ISDB-T

DVB

DVB

SNR Not modied

BER Not modied

Singal Strength Not modied

Bandwidth Not modied

Frequency Not modied

4-30

LNA Status Not modied

FFT Not modied

Modulation Not modied

Code Rate Not modied

GI Not modied

Hier Modulation Not modied

Frequency Offset Not modied

Timing Offset Not modied

AGC Not modied

UCB Not modied

PLL Type Not modied

DEMOD Type Not modied

TPS LOCK Not modied

RS Lock Not modied

SSI Not modied

SQI Not modied

4. Troubleshooting

ISDB-T

FFT Size_1 Not modied

Guard Interval_1 Not modied

Freq. Offset_1 Not modied

SNR_1 Not modied

IF AGC_1 Not modied

TMCC Lock_1 Not modied

TS Packet_1 Not modied

Master Lock_1 Not modied

A_Modulation_1 Not modied

A_Code Rate_1 Not modied

A_Timer InterLeave_1 Not modied

A_Segments Num_1 Not modied

A_Ber_1 Not modied

B_Modulation_! Not modied

B_Code Rate_1 Not modied

B_Timer InterLeave_1 Not modied

B_Segments Num_1 Not modied

B_BER_1 Not modied

C_Modulation_1 Not modied

C_Code Rate_1 Not modied

C_Timer InterLeave_1 Not modied

C_Segments Num_1 Not modied

C_BER_1 Not modied

4-31

4. Troubleshooting

ADC WB

Factory Menu Name

ADC

ADC Target

ADC RESULT

WB

Factory Name Data Range Use

ADC

AV Calibration Success Success / Failure

Comp Calibration Success Success / Failure

PC Calibration Success Success / Failure

HDMI Calibration Success Success / Failure

ADC Target

1st_AV_Low 64 0 ~1020

1st_AV_High 880 0 ~1020

1st_AV_Delta 2 0 ~ 7

1st_COMP_Y_Low 64 0 ~1020

1st_COMP_Cb_Low 512 0 ~1020

1st_COMP_Cr_Low 512 0 ~1020

1st_COMP_Y_High 940 0 ~1020

1st_COMP_Cb_High 512 0 ~1020

1st_COMP_Cr_High 512 0 ~1020

1st_COMP_Delta 2 0 ~ 7

1st_PC_Low 4 0 ~1020

1st_PC_High 1004 0 ~1020

1st_PC_Delta 2 0 ~ 7

2nd_ACH_Low 4 0 ~124

2nd_ACH_High 940 0 ~1020

2nd_PC_Low 4 0 ~124

2nd_PC_High 940 0 ~1020

2nd_Delta 2 0 ~ 7

ADC RESULT

1st_Y_GH 0 0 ~ 511

1st_Y_GL 0 0 ~ 255

1st_Cb_BH 0 0 ~ 511

1st_Cb_BL 0 0 ~ 255

1st_Cr_RH 0 0 ~ 511

1st_Cr_RL 0 0 ~ 255

2nd_R_L 0 0 ~ 255

2nd_G_L 0 0 ~ 255

2nd_B_L 0 0 ~ 255

4-32

2nd_R_H 0 0 ~ 255

2nd_G_H 0 0 ~ 255

2nd_B_H 0 0 ~ 255

4. Troubleshooting

WB

Sub Brightness 128 0 ~ 255

R_Offset 128 0 ~ 255

G_Offset 128 0 ~ 255

B_Offset 128 0 ~ 255

Sub Contrast 128 0 ~ 255

R_Gain 128 0 ~ 255

G_Gain 128 0 ~ 255

B_Gain 128 0 ~ 255

Movie R Offset 512 0 ~ 1023

Movie B Offset 512 0 ~ 1023

Movie R Gain 512 0 ~ 1023

Movie B Gain 512 0 ~ 1023

Mode

4-33

4. Troubleshooting

4-4. White Balance - Calibration

4-4-1. White Balance -Calibration

1. Calibration

AV Calibration

Comp Calibration

PC Calibration

HDMI Calibration

4-4-2. White Balance - Adjustment

(low light) (hight light)

3. W/B

Sub Bright

R offset

G offset

B offset

(W/B adjustment Condition refer next page)

Sub Contrast

R gain

G gain

B gain

4-34

4. Troubleshooting

4-5. White Ratio (Balance) Adjustment

1. You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).

2. Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS,

Component 1 and HDMI 1 modes.

3. The optimal values for each mode are congured by default. (Refer to Table 1, 2)
It varies with Panel’s size and Specication.

- Equipment : CS-210

- Pattern: MIK K-7256 #92 "Flat W/B Pattern" as standard

- Use other equipment only after comparing the result with that of the Master equipment.

- Set Aging time : 60min

- Calibration and Manual setting for WB adjustment.

HDMI : Calibration at #24 Chessboard Pattern Manual adjustment #92 pattern (720p)

COMP: Calibration at #24 Chessboard Pattern Manual adjustment at #92 pattern (720p)

CVBS: Calibration at #24 Chessboard Pattern Manual adjustment at #92 pattern (PAL)

- If nishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.

- White Balance Manual Adjustment

P-Mode

CVBS

(PAL)

COMP
(720P)

HDMI

(720P)

H/L 272 278

L/L 272 278

H/L 272 278

L/L 272 278

H/L 272 278

L/L 272 278

x y Y (Luminance) T(K) + MPCD

- Adjustment Specication

White Balance : High light (±1), Low light (±3)
Luminance : High light (Don’t care), Low light (±0.2 Ft/L)

Adjustment Coordinate

-

(Sub_CT:130)

12.6cd/m

(Sub_CT:130)

13.0cd/m

(Sub_CT:130)

13.0cd/m

2

(3.7 Ft)

-

2

(3.8 Ft)

-

2

(3.8 Ft)

12,000 (±0)

12,000 (±0)

12,000 (±0)

12,000 (±0)

12,000 (±0)

12,000 (±0)

4-35

4. Troubleshooting

4-6. Servicing Information

4-6-1. USB Download Method (Main SW & e-Manual)

Samsung may offer upgrades for Monitor’s rmware in the future.
Upgrades will be possible by connecting a USB drive to the USB port located on your TV.

1. Insert a USB drive containing the rmware (T-MSTMDEUC)
upgrade into the USB port on the rear of the Monitor.

2. Press the MENU button to display the menu. Press the or
button to select "Support", then press the ENTER button.

3. Press the or button to select "Software Upgrade", then
press the ENTER button to select "By USB". The message

"Scanning for USB. It may take up to 1 minute." is displayed.

4. The message "Upgrade version XXXX to version XXXX?
The system will be reset after upgrade." is displayed.

Press the or to select the "OK", then press the ENTER
button.

Please be careful to not disconnect the power or remove the USB
drive while upgrades are being applied. The Monitor will turn off
and turn on automatically after completing the rmware upgrade.
Please check the rmware version after the upgrades are
complete. When software is upgraded, video and audio settings
you have made will return to their default (factory) settings.
We recommend you write down your settings so that you can
easily reset them after the upgrade.

4-36

4-7. How To Upgrade Sub Micom

4-7-1. Sub S/W (with DDC Manager)

Order Description

1 Connect DDC MANAGER to the TV Set with D-SUB cable.

And Power on.
(USB type : MTI-2510 / parallel type : MTI-2059)

2 Open the DDC tool.

(Parallel type & USB type)

4. Troubleshooting

Check the setting.

Manufacture WELTREND

Device Type WT61P805

Communication Port DSUB1(Analog)

External Memory -

3 Load the sub micom program le.

4-37

4. Troubleshooting

Order Description

4 Push the 'Auto Program' Button.

(It takes about 15 seconds.)

5 If update completes,

TV set will booting automatically.
Disconnect the JIG.

4-7-2. Sub S/W (in Factory mode)

If you don't have DDC Manager, Use this method.

1. Into the Factory Mode.

2. Select "SVC". (Use r button.)

3. Select "MICOM UPGRADE off". (use r button.)

4. If message change from "off" to "wait", TV is upgrading Sub S/W. (It takes about 5 min.)

5. If update completes, TV set will booting automatically.

4-38

4-8. Mechanical diagram

4-8-1. LT20A350 / LT22A350 / LT23A350 / LT24A350

4. Troubleshooting

W

H1

H

LT20A350 LT22A350 LT23A350 LT24A350

Size

[mm]

Weight

[Kg]

"Set with Stand

(W x D x H)"

"Set without Stand

(W x d x H1)"

Set with Stand

Set without Stand

487.8 x 214.2 x 387.3 523.9 x 239.2 x 413.5 555.7 x 239.2 x 431.9 578.6 x 239.2 x 444.6

487.8 x 35.6x 306.5 523.9 x 35.7 x 327.7 555.7 x 31.6 x 345.6 578.6 x 33.2 x 359.1

3.1 4.2 4.2 4.8

2.8 3.6 3.6 4.2

4-8-2. LT22A550 / LT23A550 / LT24A550 / LT27A550

d

D

Size

[mm]

Weight

[Kg]

"Set with Stand

(W x D x H)"

"Set without Stand

(W x d x H1)"

Set with Stand

Set without Stand

W

d

H1

H

D

LT22A550 LT23A550 LT24A550 LT27A550

525.5 x 220.6 x 414.4 559.1 x 220.6 x 433.8 581.4 x 220.6 x 446.1 648.1 x 235 x 485.7

525.5 x 34.8 x 329 559.1 x 31.2 x 348.7 581.4 x 32.7 x 360.5 648.1 x 31.8 x 398.9

4.4 4.4 5 5.6

3.6 3.7 4.3 4.7

4-39

4. Troubleshooting

4-9. PCB diagram

4-9-1. PCB layout

 Mian PCB

H/P OUT

TUNER

SCART

COMP

CN1201

FUNCTION CNT

IC1102 DDR

CN302

SPEAKER CNT

IC1201 SUB MICOM

CN201

POWER CNT

IC1301 FLASH

IC1101 DDR

CI

D-SUB

PC L/R

OPTICAL USB1 HDMI2HDMI1

IC 1111

X5 Scaler

CN1602_FHD

LVDS CNT

4-40

TOP BOTTOM

4. Troubleshooting

4-41

4. Troubleshooting

 SMPS PCB

Model / Inch CODE P/N

20” / 23” BN44-00449B PD23A0_BPN

Model / Inch CODE P/N

22” BN44-00448A PD22A0_BDY

4-42

Model / Inch CODE P/N

24” / 27” BN44-00450A PD27A0_BDY

4. Troubleshooting

4-43

5. Wiring Diagram

5-1. Wiring Diagram

Function & IR

SPEAKER

5. Wiring Diagram

SMPS

SPEAKER

CN1201

CN302

TCON

Main Board

CN1603_HDCN201

5-1

5. Wiring Diagram

5-2. Connector

POWER IN (CN201)

1 B5V 8 GND

2 SW_POWER 9 B12VS

3 B5V 10 SW_INVERTER

4 A5V 11 B13V

5 GND 12 NC

6 GND 13 B13V

7 B12VS 14 PWM_DIMMING

LVDS OUT (option by inch)

19" (CN1602_HD)

1 Panel_VCC 16 ODDCLK+

2 Panel_VCC 17 ODDCLK-

3 Panel_VCC 18 GND

4 Panel_VCC 19 ODD[2]+

5 Panel_VCC 20 ODD[2]-

6 GND 21 GND

7 GND 22 ODD[1]+

8 GND 23 ODD[1]-

9 TCON_WP 24 GND

10 FORMAT 25 ODD[0]+

11 NC 26 ODD[0]-

12 GND 27 GND

13 ODD[3]+ 28 SDA_TCON

14 ODD[3]- 29 SCL_TCON

15 GND 30 NC

LVDS OUT (option by inch)

22"/27" (CN1603_FHD)

1 Panel_VCC 16 EVEN[1]-

2 Panel_VCC 17 GND

3 Panel_VCC 18 EVEN[0]+

4 NC 19 EVEN[0]-

5 NC 20 ODD[3]+

6 NC 21 ODD[3]-

7 GND 22 ODDCLK+

8 EVEN[3]+ 23 ODDCLK-

9 EVEN[3]- 24 GND

10 EVENCLK+ 25 ODD[2]+

11 EVENCLK- 26 ODD[2]-

12 EVEN[2]+ 27 ODD[1]+

13 EVEN[2]- 28 ODD[1]-

14 GND 29 ODD[0]+

15 EVEN[1]+ 30 ODD[0]-

FUNCTION (CN1201)

1 IR 5 MSDA

2 GND 6 FUNC_INTR

3 3.3V 7 LED_STB

4 MSCL 8 NC

SPEAKER (CN302)

1 R+ 3 L+

2 R- 4 L-

PC/DIV SOUND (CN402)

1 GND 4 NC

2 PC_SL_IN 5 NC

3 PC_SR_IN 6 NC

USB (CN1501)

1 5V 3 USB_DP

2 USB_DM 4 GND

HEADPHONE (CN301)

1 GND 4 GND

2 HP_L 5 IDENT_HP

3 HP_R 6 NC

SPDIF (OP301)

1 SPDIF_OUT 3 GND

2 5V

HDMI (CN601~CN602)

1 RX2+ 11 GND

2 GND 12 RXCLK-

3 RX2- 13 HDMI_CEC

4 RX1+ 14 NC

5 GND 15 SCL

6 RX1- 16 SDA

7 RX0+ 17 GND

8 GND 18 5V / IDENT

9 RX0- 19 HPD

10 RXCLK+

5-2

SCART (CN501_SC)

1 GND 13 NC

2 GND 14 SC_G

3 GND 15 GND

4 GND 16 NC

5 SC_CVBS_IN 17 IDENT_SC

6 GND 18 SC_B

7 SC_CVBS_OUT 19 GND

8 GND 20 SC_SL_IN

9 SC_FB 21 SC_SR_IN

10 GND 22 GND

11 SC_R 23 SC_SL_OUT

12 GND 24 SC_SR_OUT

COMPONENT/AV (CN503)

1 GND 6 GND

2 COMP_Y/AV_CVBS 7 IDENT_COMP

3 COMP_PB 8 SL_IN

4 IDENT_AV 9 SR_IN

5 COMP_PR

5. Wiring Diagram

TUNER

1 RF_AGC 9 IF-AGC

2 5V 10 DIF 1

3 GND 11 DIF 2

4 33V 12 AFT

5 GND 13 SIF

6 SCL 14 NC

7 SDA 15 CVBS

8 IF-TP

5-3

5. Wiring Diagram

5-3. Connector Functions

Connector Functions

Main  IP (14p)

Main  T-CON (30p LVDS)

IP  Panel (6p/4p) (use only AMLCD panel)

Supply main power and dimming signal from IP Board to Main Board.

The LVDS signal transfered from Main Board to Panel.

Supply power from IP board to Driver Board.

5-4. Cables

Use LEAD (Main-IP 14P) LEAD (IP-Driver B'D 4P) LEAD (IP-Driver B'D 6P)

20" : BN39-01455G (150mm)

Code

Photo

Use LVDS (Main - TCON)

22"/23"/24" : BN39-01455F (175mm)
27" : BN39-01455B (300mm)

20" : BN39-01465B (100mm)
23" : BN39-01465A (150mm)

27" : BN39-01460A (150mm)

Code

Photo

20" : BN96-13227M (125mm)

23" : BN96-13227T (125mm)
27" : BN96-13227N (205mm)

22" : BN96-13722M (122mm)
24" : BN96-13722U (122mm)

5-4