Samsung UA32F5500 Schematic

LED TV

Chassis : U85A Model : UA32F45*0A*

UA**F53*0A* UA**F55**A*

SERVICE

LED TV Contents

1. Precautions

2. Product specications

3. Disassembly and Reassembly

4. Troubleshooting

5. Wiring Diagram

Manual

UA**F5500A*

Contents

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

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

1-2. Servicing Precautions ..........................................................................................................1-3

1-3. Static Electricity Precautions ...............................................................................................1-4

1-4. Installation Precautions .......................................................................................................1-5

2. Product Specications.................................................................................................2-1

2-1. Product Information .............................................................................................................2-1

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

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

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

3-2. Assy Board P-Jog Switch & Ir ..............................................................................................3-6

3-3. Disassembly(PTC) ...............................................................................................................3-8

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

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

4-2. How to Check Fault Symptom .............................................................................................4-3

4-3. Factory Mode Adjustments ................................................................................................ 4-21

4-4. White Balance ...................................................................................................................4-37

4-5. White Ratio (Balance) Adjustment .....................................................................................4-40

4-6. Detail Specications ..........................................................................................................4-42

4-7. Software Upgrade ............................................................................................................ 4-115

4-8. Rear Cover Dimension ....................................................................................................4-118

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

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

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

5-3. Connector Functions ...........................................................................................................5-6

5-4. Cables .................................................................................................................................5-7

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.

Printed in Korea

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

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

WARNING

1-1-2. Servicing the LED TV

When servicing the LED TV, Disconnect the AC line cord from the AC outlet.1.

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

1-1-3. Fire and Shock Hazard

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

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

Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and 2. compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.

Leakage Current Hot Check:3.

Disconnect the AC power and DC power jack before servicing.

(READING SHOULD)

DEVICE UNDER

TEST

ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)

NOT BE ABOVE 0.5mA

2-WIRE CORD

TEST ALL

EXPOSED METAL

SURFACES

LEAKAGE CURRENT

TESTER

EARTH

GROUND

Do not use an isolation transformer during this test.

Use a leakage current tester or a metering system that complies with American National Standards

WARNING

Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

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

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

1-2

1. Precautions

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

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.

on schematics and parts lists. A substitute

1-3

1. Precautions

1-2. Servicing Precautions

An electrolytic capacitor installed with the wrong polarity might explode.

WARNING

Before servicing units covered by this service manual, read and follow the Safety Precautions section of

CAUTION

NOTE

1-2-1. General Servicing Precautions

Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before 1. 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.

Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. 2. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position.

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

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

Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect 5. 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.

Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; 6. always remove the instrument’s ground lead last.

this manual.

If unforeseen circumstances create conict between the following servicing precautions and any of the

safety precautions, always follow the safety precautions.

1-4

1. Precautions

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 eld-effect

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

Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your 1. 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.

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

Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.3.

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

Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate 5. electrical charges sufcient to damage ESDs.

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

Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material 7. to the chassis or circuit assembly into which the device will be installed.

Be sure no power is applied to the chassis or circuit and observe all other safety precautions.

CAUTION

Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or 8.

lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.

1-5

1. Precautions

1-4. Installation Precautions

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

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

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

may cause re.

Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed 4.

to moisture. Otherwise, it may cause a re or electric shock.

Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check 5.

the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric

shock.

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

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

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

If an equipment is provided with a replaceable battery, and if replacement by an incorrect type could result in an 8. explosion (for example, with some lithium batteries), the following applies:

Risk of explosion if battery is replaced by an incorrect type dispose of used batteries according to • the instructions.

Do not dispose of batteries in a re.•

Do not short circuit, disassemble or overheat the batteries.•

CAUTION

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent • type.

Do not be exposed to excessive heat such as sunshine, re or the like.•

2. Product Specications

2-1. Product Information

2-1-1. Model Comparison

Model UE**F5500

2. Product specications

Front View

Detail View

Front Color Black (Panel)

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

738.0 x 509.6 x 265.0 mm / 29.1 x 20.1 x 10.4 inches

928.2 x 615.5 x 265.0 mm / 36.5 x 24.2 x 10.4 inches

1059.6 x 700.0 x 307.3 mm / 41.7 x 27.6 x 12.1 inches

1059.6 x 626.2 x 49.4 mm / 41.7 x 24.7 x 1.9 inches

1135.4 x 741.8 x 307.3 mm / 44.7 x 29.2 x 12.2 inches

1135.4 x 668.0 x 49.8 mm / 44.7 x 26.3 x 2.0 inches

Dimensions

(W x H x D)

32F45

32F53 32F55

40F53 40F55

46F53 46F55

50F55

* W : Width H : High D : Depth

750.9 x 476.9 x 207.8 mm / 29.6 x 18.8 x 8.2 inches

750.9 x 456.6 x 59.3 mm / 29.6 x 18.0 x 2.3 inches

738.0 x 445.4 x 49.0 mm / 29.1 x 17.5 x 1.9 inches

928.2 x 552.3 x 49.4 mm / 36.5 x 21.7 x 1.9 inches

2-1

2-2

2. Product specications

Set with

32F45

32F53 32F55

Weight

Panel Type Anti Glare

Internal Memory 4 GByte

40F53 40F55

46F53 46F55

50F55

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

Set with

Stand

Set without

Stand

5.6 kg / 12.3 lbs

5.3 kg / 11.7 lbs

5.7 kg / 12.6 lbs

5.0 kg / 11.0 lbs

8.9 kg / 19.6 lbs

8.0 kg / 17.6 lbs

11.5 kg / 25.4 lbs

10.8 kg / 23.8 lbs

14.7 kg / 32.4 lbs

13.0 kg / 28.7 lbs

DDR 1 GByte

Feature Smart TV

2-3

2. Product specications

2-1-2. Feature & Specications

Model UA32F55**A* / UA32F5300A* (M or W: DVB-T, K: DVB-T2, R: READY)

Feature

Digital-TV, RF, 3-HDMI, 1-Component, 1-A/V, 2-USB2.0, LAN•

Brightness : 300 cd/m•

Dynamic Contrast Ratio : Mega Contrast•

Response Time : 6.5 ms•

CMR : 120•

Item Description

LCD Panel 32 inch FHD 60Hz

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

Display Colors 16.7 M colors

Maximum Resolution Horizontal : 1920 Pixels

Specications

Vertical : 47 Hz ~ 63 Hz (Automatic)

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 74.25 MHz

Active Display (H x V)*

* Horizontal x Vertical

698.4(H) X 392.9(V) (mm) / 27.5(H) X 15.5(V) (inches)

AC Power Voltage & Frequency AC 220 V ~ 240 V / AC 100 V ~ 240 V, 50 Hz / 60 Hz

Power Consumption 86 / 85 W (Under 0.3 W, Stand by)

Dimensions Set (W x H x D)*

* Width x High x Depth

Set with Stand 738.0 x 509.6 x 265.0 mm / 29.1 x 20.1 x 10.4 inches

Set without Stand 738.0 x 445.4 x 49.0 mm / 29.1 x 17.5 x 1.9 inches

Weight Set with Stand 5.7 kg / 12.6 lbs

Set without Stand 5.0 kg / 11.0 lbs

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

System DVB-T/C/T2C(depend on country), PAL , SECAM , NT4.43

Sound PAL-B/G/I/D/K, Nicam, Dolby Digital Plus/Pulse

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

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

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

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

Audio Specications MAX Internal Audio Output Power : Each 10 W(Left/Right)

Equalizer : 5 Band

Output Frequency :

RF : 20 Hz ~ 15.4 kHz•

AV/Componet/HDMI : 20 Hz ~ 20 kHz•

Note : Dolby Digital Plus/Pulse, USB2.0, Film mode, Energy Saving, Eco sensor, SmartTV

2-4

2. Product specications

Model UA40F55**A* / UA40F53**A* (M or W: DVB-T, K: DVB-T2, R: READY)

Feature

Digital-TV, RF, 3-HDMI, 1-Component, 1-A/V, 2-USB2.0, LAN•

Brightness : 300 cd/m•

Dynamic Contrast Ratio : Mega Contrast•

Response Time : 6.5 ms•

CMR : 100•

Specications

Item Description

LCD Panel 40 inch FHD 60Hz

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

Vertical : 47 Hz ~ 63 Hz (Automatic)

Display Colors 16.7 M colors

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 74.25 MHz

Active Display (H x V)*

* Horizontal x Vertical

885.6(H) X 498.2(V) (mm) / 34.9(H) X 19.6(V) (inches)

AC Power Voltage & Frequency AC 220 V ~ 240 V / AC 100 V ~ 240 V, 50 Hz / 60 Hz

Power Consumption 115 / 117 W (Under 0.3 W, Stand by)

Dimensions Set (W x H x D)*

* Width x High x Depth

Set with Stand 928.2 x 615.5 x 265.0 mm / 36.5 x 24.2 x 10.4 inches

Set without Stand 928.2 x 552.3 x 49.4 mm / 36.5 x 21.7 x 1.9 inches

Weight Set with Stand 8.9 kg / 19.6 lbs

Set without Stand 8.0 kg / 17.6 lbs

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

System DVB-T/C/T2C(depend on country), PAL , SECAM , NT4.43

Sound PAL-B/G/I/D/K, Nicam, Dolby Digital Plus/Pulse

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

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

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

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

Audio Specications MAX Internal Audio Output Power : Each 10 W(Left/Right)

Equalizer : 5 Band

Output Frequency :

RF : 20 Hz ~ 15.4 kHz•

AV/Componet/HDMI : 20 Hz ~ 20 kHz•

Note : Dolby Digital Plus/Pulse, USB2.0, Film mode, Energy Saving, Eco sensor, SmartTV

2-5

2. Product specications

Model UA46F55**A* / UA46F53**A* (M or W: DVB-T, K: DVB-T2, R: READY)

Feature

Digital-TV, RF, 3-HDMI, 1-Component, 1-A/V, 2-USB2.0, LAN•

Brightness : 300 cd/m•

Dynamic Contrast Ratio : Mega Contrast•

Response Time : 6.5 ms•

CMR : 100•

Specications

Item Description

LCD Panel 46 inch FHD 60Hz

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

Vertical : 47 Hz ~ 63 Hz (Automatic)

Display Colors 16.7 M colors

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 74.25 MHz

Active Display (H x V)*

* Horizontal x Vertical

1018.1(H) X 572.7(V) (mm) / 40.1(H) X 22.5(V) (inches)

AC Power Voltage & Frequency AC 220 V ~ 240 V / AC 100 V ~ 240 V, 50 Hz / 60 Hz

Power Consumption 117 / 119 W (Under 0.3 W, Stand by)

Dimensions Set (W x H x D)*

* Width x High x Depth

Set with Stand 1059.6 x 700.0 x 307.3 mm / 41.7 x 27.6 x 12.1 inches

Set without Stand 1059.6 x 626.2 x 49.4 mm / 41.7 x 24.7 x 1.9 inches

Weight Set with Stand 11.5 kg / 25.4 lbs

Set without Stand 10.8 kg / 23.8 lbs

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

System DVB-T/C/T2C(depend on country), PAL , SECAM , NT4.43

Sound PAL-B/G/I/D/K, Nicam, Dolby Digital Plus/Pulse

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

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

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

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

Audio Specications MAX Internal Audio Output Power : Each 10 W(Left/Right)

Equalizer : 5 Band

Output Frequency :

RF : 20 Hz ~ 15.4 kHz•

AV/Componet/HDMI : 20 Hz ~ 20 kHz•

Note : Dolby Digital Plus/Pulse, USB2.0, Film mode, Energy Saving, Eco sensor, SmartTV

2-6

2. Product specications

Model UA50F55**A* (M or W: DVB-T, K: DVB-T2, R: READY)

Feature

Digital-TV, RF, 3-HDMI, 1-Component, 1-A/V, 2-USB2.0, LAN•

Brightness : 300 cd/m•

Dynamic Contrast Ratio : Mega Contrast•

Response Time : 6.5 ms•

CMR : 100•

Specications

Item Description

LCD Panel 50 inch FHD 60Hz

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

Vertical : 47 Hz ~ 63 Hz (Automatic)

Display Colors 16.7 M colors

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 74.25 MHz

Active Display (H x V)*

* Horizontal x Vertical

1023.0(H) X 577.6(V) (mm) / 40.3(H) X 22.7(V) (inches)

AC Power Voltage & Frequency AC 220 V ~ 240 V / AC 100 V ~ 240 V, 50 Hz / 60 Hz

Power Consumption 139 / 143 W (Under 0.3 W, Stand by)

Dimensions Set (W x H x D)*

* Width x High x Depth

Set with Stand 1135.4 x 741.8 x 307.3 mm / 44.7 x 29.2 x 12.2 inches

Set without Stand 1135.4 x 668.0 x 49.8 mm / 44.7 x 26.3 x 2.0 inches

Weight Set with Stand 14.7 kg / 32.4 lbs

Set without Stand 13.0 kg / 28.7 lbs

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

System DVB-T/C/T2C(depend on country), PAL , SECAM , NT4.43

Sound PAL-B/G/I/D/K, Nicam, Dolby Digital Plus/Pulse

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

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

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

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

Audio Specications MAX Internal Audio Output Power : Each 10 W(Left/Right)

Equalizer : 5 Band

Output Frequency :

RF : 20 Hz ~ 15.4 kHz•

AV/Componet/HDMI : 20 Hz ~ 20 kHz•

Note : Dolby Digital Plus/Pulse, USB2.0, Film mode, Energy Saving, Eco sensor, SmartTV

2-7

2. Product specications

Model UA32F45**A* (M or W: DVB-T, K: DVB-T2, R: READY)

Feature

Digital-TV, RF, 3-HDMI, 1-Component, 1-A/V, 2-USB2.0, LAN•

Brightness : 300 cd/m•

Dynamic Contrast Ratio : Mega Contrast•

Response Time : 6.5 ms•

CMR : 120•

Specications

Item Description

LCD Panel 32 inch FHD 60Hz

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

Vertical : 47 Hz ~ 63 Hz (Automatic)

Display Colors 16.7 M colors

Maximum Resolution Horizontal : 1366 Pixels

Vertical : 768 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 74.25 MHz

Active Display (H x V)*

* Horizontal x Vertical

703.4(H) X 397.8(V) (mm) / 27.7(H) X 15.7(V) (inches)

AC Power Voltage & Frequency AC 220 V ~ 240 V / AC 100 V ~ 240 V, 50 Hz / 60 Hz

Power Consumption 68 / 70 W (Under 0.3 W, Stand by)

Dimensions Set (W x H x D)*

* Width x High x Depth

Set with Stand 750.9 x 476.9 x 207.8 mm / 29.6 x 18.8 x 8.2 inches

Set without Stand 750.9 x 456.6 x 59.3 mm / 29.6 x 18.0 x 2.3 inches

Weight Set with Stand 5.6 kg / 12.3 lbs

Set without Stand 5.3 kg / 11.7 lbs

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

System DVB-T/C/T2C(depend on country), PAL , SECAM , NT4.43

Sound PAL-B/G/I/D/K, Nicam, Dolby Digital Plus/Pulse

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

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

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

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

Audio Specications MAX Internal Audio Output Power : Each 10 W(Left/Right)

Equalizer : 5 Band

Output Frequency :

RF : 20 Hz ~ 15.4 kHz•

AV/Componet/HDMI : 20 Hz ~ 20 kHz•

Note : Dolby Digital Plus/Pulse, USB2.0, Film mode, Energy Saving, SmartTV

2. Product specications

2-2. Accessories

Product Description Code. No Remark

Remote Control & Batteries

(AAA x 2)

Power Cord

Owners Manual

AA59-00790A (AU)

AA59-00793A (NZ,SG)

AA59-00797A (Etc.)

3903-000845 (AU,NZ)

3903-000847 (SG)

3903-000849 (Etc.)

BN68-04827A (AU) BN68-04827F (NZ)

BN68-04827C (SG)

BN68-04827B (Etc.)

2-8

3. Disassembly and Reassemble

3. Disassembly and Reassembly

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

This LED TV contains electrostatically sensitive devices. Use caution when handling these components.

WARNING

3-1. Disassembly and Reassembly

Disconnect the LED TV from the power source before disassembly.1.

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

CAUTION

Place TV face down on cushioned table.

If there is no additional coment, it is same for all inches.3.

Description Picture Description Screws

Remove 4 screws from the Stand and

Remove Stand.

6003-001782

3-1

3-2

3. Disassembly and Reassemble

Description Picture Description Screws

Remove 15 screws of Rear Cover.

Remove the Cover Jack.

6003-001782

6003-002755

Lift up Rear Cover slightly from the bottom.

3-3

3. Disassembly and Reassemble

Description Picture Description Screws

Disconnect the Function Assy Cable.

Remove the Rear Cover.

Remove 9 screws of Main Board and

Power Board.

Remove the Speakers and Power Cables.

6001-003016

3-4

3. Disassembly and Reassemble

Description Picture Description Screws

Remove the LVDS Cable and Panel Drive

Cable.

Completed disassembly.

NOTE

Reassembly procedures are in the reverse order of disassembly procedures.

3-5

3. Disassembly and Reassemble

CROSS #2(3.56) RECESS

B 8.0R

★ C 0.6 ± 0.1

M4.0 x 1.8 TAPPING △ B-TYPE

CROSS #2(3.08 특수 Punch D:7.5 RECESS

M3 x 0.5 PITCH SCALOCK

TRAP 도포

인치

CROSS #2(★M3.0F) RECESS

M3 x 0.5 PITCH SCALOCK

TRAP 도포

인치

Screw Size 

Code No. COLOR A (mm) B (mm) C (mm) Q'ty Screw Image

32" : 10EA,

6003-001782 BLACK 7.80~8.20 1.85~1.95 3.81~3.91

40" : 17EA,

46": 20EA, 50" : 20EA

6001-002755 BLACK 7.1~7.5 1.9~2.0 2.98~3.02

32" : 2EA,

40"/46"/50": 4EA

6001-003016 WHITE 5.6~6.0 1.15~1.25 2.92~2.98 9EA

3-6

3. Disassembly and Reassemble

3-2. Assy Board P-Jog Switch & Ir

How to disassembly 

Description Picture Description Refer

Loosen 2 screws.

Pull out a jog function.

3-7

3. Disassembly and Reassemble

How to assembly 

Insert a jog function.

Put 2 screws.

Description Picture Description Refer

When you want to ignore the funtion key actions

Option

Control

Debug

SVC

ADC/WB

Advanced

Cong Option Navigation Key Func

0 : New Function (Naviagtion) Key

1 : Old Function (Touch) Key

2 : Do not work Function key

[ Default ]

3-8

3. Disassembly and Reassemble

3-3. Disassembly(PTC)

How to disassembly 

Description Picture Description Refer

Place TV face up on cushioned table.

Products at the top of the central TOP-

CHASSIS is rotated by 45 degrees outward and pulls.

3-9

3. Disassembly and Reassemble

Description Picture Description Refer

Pull in the same way from the center of the

top.

Pull the left part of the product as shown

while holding the raised portion on gure 3.

Pull the bottom part of the product as

gure 2 while holding the raised portion on gure 4.

3-10

3. Disassembly and Reassemble

Description Picture Description Refer

As shown in the picture, Lift the bottom of

the TOP-CHASSIS.

Pull the products at the bottom of the right

side of the chassis.

3-11

3. Disassembly and Reassemble

Description Picture Description Refer

Lift the bottom of the chassis with one

hand and holding the bottom of the product after you pull the right side of the product chassis.

Disassembly is complete.

CAUTION

To use JIG : Does not lift the chassis by hand, JIG using the lift.

NOTE

Reassembly procedures are in the reverse order of disassembly procedures.

4. Troubleshooting

4-1. Troubleshooting

Previous Check 

Check the various cable connections rst.1.

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

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. -

Check the power input to the Main Board.2.

How to distinguish if the problem is caused by Main Board or T-Con Board.3.

No Video - : If the problem is No Video but BLU is on and Indication LED is blinking repeatedly and faster than

nomal booting, replace the T-Con Board.

Distorted Picture - : Check the inner patterns.

For All mode

X12 FOX_FT1 FRC Post Picture Problem

OK OK NG Main Board or Signal Source

NG OK NG Main Board

4. Troubleshooting

NG NG NG Main or LVDS cable or T-con or Panel

Only for HDMI mode (additional check)

HDMI Picture Problem

OK NG There is no problems after HDMI IC check HDMI source or HDMI jack.

NG NG There is no problems before HDMI IC check X10+ pattern or LVDS cable or T-con.

How to check inner pattern? 

Factory mode. ((mute → 1 → 8 → 2 → Power on when TV is in ‘stand-by mode’)1.

Move to SVC menu.2.

Move to Test Pattern.3.

Check inner patterns.4.

4-1

4-2

4. Troubleshooting

Inside View 

Power Ass’y

Main Ass’y

20P Cable

LVDS

T-Con

Speaker

4-2. How to Check Fault Symptom

4-3

4. Troubleshooting

No Video (HDMI 1, 2, 3 - Digital Signal) 

*Refer to the next page to check the lacation such a CN201 or IC201 SVC Manual mentioned.

Symptom

Major

checkpoints

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

Check the HDMI source.•

Check the HDMI switch.•

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

Diagnostics

Power indicator LED is off.

Lamp(Backlight) on, no video ?

Yes

Check the HDMI source and

check the connection of HDMI cable ?

Yes

Check the signal at Input of Main board ?

HDMI1 Clk : Pin #10, #12 of CN602_H2

DATA : Pin #7, #9, #4, #6, #1, #3 of

CN602_H2

HDMI2 Clk : Pin #10, #12 of CN603_H3

DATA : Pin #7, #9, #4, #6, #1, #3 of

HDMI3 Clk : Pin #10, #12 of CN604_H4

DATA : Pin #7, #9, #4, #6, #1, #3 of

HDMI4 Clk : Pin #10, #12 of CN601_H1

DATA : Pin #7, #9, #4, #6, #1, #3 of

Check the LVDS clk signal at output of

TX2_CLK : ODD_TXCLK_DN/DP

TX4_CLK : EVEN_TXCLK_DN/DP

CN603_H3

CN604_H4

CN601_H1

Yes

Main board.(TX)

Check a set in the ‘Stand-by mode’.

Input the HDMI signal properly.

Check CN601~4.

Check HDMI cable.

Change the Main Ass’y

Check IC1001(X12).

Change the Main Ass’y.

Check IC1001(X12).

Change the Main Ass’y.

Yes

Check the LVDS cable?

Replace the T-con / LCD panel?

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

Please, Contact Tech support.

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