Samsung Odyssey G7 LC27G7 T Series Bedienungsanleitung

Gaming Monitor

Refer to the service manual in the GSPN (see the rear cover) for the more information.

Contents

SERVICE Manual

G75T

1. Precautions

2. Product specifications

3. Disassembly and Reassembly

4. Troubleshooting

5. Wiring Diagram

Gaming Monitor

Chassis Model

LK00 LC27G7*T

LC32G7*T

Contents

1. Precautions

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

1-1-1. Servicing the Product.........................................................................................................1-1

1-1-2. Fire and Shock Hazard ......................................................................................................1-1

1-1-3. Product Safety Notices.......................................................................................................1-2

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

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

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

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

2. Product specifications

2-1. Model Comparison.........................................................................................................................2-1

2-2. Feature & Specifications ................................................................................................................2-2

2-3. Specification Comparison to Old Models .......................................................................................2-3

2-4. Accessories....................................................................................................................................2-5

2-5. About New Features ......................................................................................................................2-6

2-5-1. Picture Mode......................................................................................................................2-6

2-5-2. Screen scanning rate ........................................................................................................2-7

2-5-3. Adaptive-Sync....................................................................................................................2-7

2-5-4. FreeSync............................................................................................................................2-9

2-5-5. Core Lighting......................................................................................................................2-11

2-5-6. MPRT .................................................................................................................................2-12

2-5-7. MGA Calibration.................................................................................................................2-14

3. Disassembly and Reassemble

3-1. Disassembly...................................................................................................................................3-1

4. Troubleshooting

4-1. Previous check...............................................................................................................................4-1

4-2. How to check fault symptom ..........................................................................................................4-2

4-2-1. When the Power Does Not Turn On...................................................................................4-2

4-2-2. When a blank screen is displayed (HDMI1).......................................................................4-4

4-2-3. When a blank screen is displayed (DisplayPort 1) ............................................................4-6

4-2-4. When a blank screen is displayed (DisplayPort 2) ............................................................4-8

4-3. Error Examples and Actions...........................................................................................................4-10

4-4. Adjustment .....................................................................................................................................4-11

4-4-1. Changing the Service Menu Settings.................................................................................4-11

4-4-2. Service Function ................................................................................................................4-12

4-4-3. Entering WIN DDC Data ....................................................................................................4-14

5. Wiring Diagram

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

5-2. Block Diagram................................................................................................................................5-2

5-3. Board Connection ..........................................................................................................................5-3

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

GSPN (GLOBAL SERVICE PARTNER NETWORK)

Area Web Site

Europe, MENA, CIS,

Africa https://gspn1.samsungcsportal.com

E.Asia, W.Asia,

China, Japan https://gspn2.samsungcsportal.com

N.America, S.America https://gspn3.samsungcsportal.com

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.

Warning

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

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

1-1-1. Servicing the Product

1. When servicing the Product, 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.

1-1-2. Fire and Shock Hazard

• Before returning the product 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 product.

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:

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).

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

the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all

exposed metal parts, including: metal cabinets, screwheads and control shafts.

The current measured should not exceed 0.5 milliamp.

Reverse the power-plug prongs in the AC outlet and repeat the test.

1-1

Precautions

DEVICE

UNDER

TEST

(READING SHOULD)

NOT BE ABOVE 0.5mA

LEAKAGE

CURRENT

TESTER

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED)

EARTH

GROUND

1-1-3. Product Safety Notices

• Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual

inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,

wattage, etc. Parts that have special safety characteristics are identified by on schematics and parts lists.

A substitute replacement that does not have the same safety characteristics as the recommended replacement part might

create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued

whenever appropriate.

Warning

• Wear protective equipment(gloves, safety goggles, etc) to prevent injuries and electrical shock that may

occur during product disassembly/repair.

1-2

Precautions

1-2. Servicing Precautions

Warning

• An electrolytic capacitor installed with the wrong polarity might explode.

Caution

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

this manual.

Note

• If unforeseen circumstances create conflict between the following servicing precautions and any of the

safety precautions, always follow the safety precautions.

Note

• Following the repair by a non-authorised service provider, self-repair or non-professional repair of the

product, Samsung is not liable for any damage to the product, any injury or any other product safety issue

caused by any attempt to repair the product which does not carefully follow these repair and maintenance

instructions. Any damage to the product caused by an attempt to repair the product by any person other

than a Samsung certified service provider will not be covered by the warranty.

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 (500V) 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

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 field-effect

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

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

by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard, be sure to

remove the wrist strap before applying power to the product.

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

of an electrostatic charge.

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

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

5. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate

electrical charges sufficient to damage ESDs.

6. Do not remove a replacement ESD from its protective package until you are ready to install it.

Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or

other conductive materials.

7. Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material to

the chassis or circuit assembly into which the device will be installed.

Caution

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

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

your foot from a carpeted floor can generate enough static electricity to damage an ESD.

1-4

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 fire or electric shock.

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

may cause fire.

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

moisture. Otherwise, it may cause a fire or electric shock.

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

Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or

electric shock.

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

antenna falling over may cause fire or electric shock.

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

A rise in temperature within the product may cause fire.

8. If an equipment is provided with a replaceable battery, and if replacement by an incorrect type could result in an explosion

(for example, with some lithium batteries), the following applies:

Caution

• 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 fire.

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

• 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, fire or the like.

1-5

Precautions

2-1

Product specifications

2. Product specifications

2-1. Model Comparison

Front View

Detail View

Front Color Silver

Dimensions

(W x H x D)

Weight

27"

Without Stand 614.6 x382.8 x 171.0 mm / 5.5kg

With Stand 614.6 x 576.0 x 305.2 mm / 7.2 kg

32"

Without Stand 710.1 x 439.1 x 187.1 mm / 6.5 kg

With Stand 710.1 x 594.5 x 305.9 mm / 8.2 kg

Panel Type LCM / LED BLU / VA

Internal Memory None

DDR None

Feature 240Hz, FreeSync 2.0, QD Color, MPRT 1ms, Lighting

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