Samsung C27T55 Series User manual

User Manual
The colour and the appearance may differ depending on the product, and the specifications are subject to change without
prior notice to improve the performance.
The contents of this manual are subject to change without notice to improve quality.
© Samsung Electronics
Samsung Electronics owns the copyright for this manual.
Use or reproduction of this manual in parts or entiretywithout the authorization of Samsung Electronics is prohibited.
Trademarks other than that of Samsung Electronics are owned by their respective owners.
An administration fee may be charged in the following situations:
(a) An engineer is called out at your request, but it is found that the product has no defect (i.e., where the user manual
has not been read).
(b) You bring the unit to a repair centre, but it is found that the product has no defect (i.e., where the user manual has not
been read).
You will be informed of the administration fee amount before a technician visits.
C24T55* C27T55* C32T55*

Table of contents
Before Using the Product
Securing the Installation Space 4
Safety Precautions 4
Cleaning 5
Electricity and Safety 5
Installation 6
Operation 7
Preparations
Parts 9
Control Panel 9
Function Key Guide 10
Direct Key Guide 11
Types of Ports 12
Anti-theft Lock 12
Installation 13
Attaching the Stand 13
Removing the Stand 14
Precautions for moving the product 15
Adjusting the Product Tilt 15
2
Screen Setup
Picture Mode 20
Brightness 21
Contrast 21
Sharpness 21
Color 21
Black Level 22
Eye Saver Mode 22
Game Mode 22
Response Time 22
Screen Ratio 23
Screen Adjustment 23
Adjusting OSD (On Screen
Display) settings
Transparency 24
Position 24
H-Position 24
V-Position 24
Language 24
Display Time 24
Connecting and Using a Source Device
Read below before installing the product. 16
Connecting and Using a PC 16
Connection Using the D-SUB Cable (Analogue
Type) 16
Connection Using the HDMI Cable 17
Connection Using an HDMI-DVI Cable 17
Connection Using an DP Cable 17
Connecting to headphones or earphones 17
Connecting the Power 18
Tidying Up the Connected Cables 18
Correct posture to use the product 19
Driver Installation 19
Setting Optimum Resolution 19

Table of contents
3
Specifications
General 35
Standard Signal Mode Table 36
Appendix
Responsibility for the Pay Service (Cost to
Customers) 38
Not a product defect 38
A Product damage caused by customer's fault 38
Others 38
Installing the Software
Easy Setting Box 31
Restrictions and Problems with the Installation 31
System Requirements 31
Troubleshooting Guide
Requirements Before Contacting Samsung Customer
Service Centre 32
Product diagnosis (Screen issue) 32
Checking the Resolution and Frequency 32
Check the following. 32
Q & A 34
Setup and Reset
FreeSync 25
Sound 26
Volume 26
Sound Mode 26
Select Sound 26
Volume 26
Eco Saving Plus 26
Dynamic Brightness 27
Off Timer Plus 27
PC/AV Mode 27
Source Detection 27
Key Repeat Time 28
Power LED On 28
HDMI-CEC 28
Support
Self Diagnosis 29
Information 30
Reset All 30

4
Securing the Installation Space
Make sure to have enough space forventilation when placing the product. An internal temperature rise
may cause fire and damage the product. Maintain enough space around the product as shown in the
diagram when installing the product.
―The exterior may differ depending on the product.
10 cm 10 cm
10 cm 10 cm
10 cm
Safety Precautions
Warning A serious orfatal injury may result if instructions are not followed.
Caution Personal injury or damage to properties may result if instructions are
not followed.
CAUTION
RISK OF ELECTRIC SHOCK. DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). THERE
ARE NO USER SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO QUALIFIED PERSONNEL.
This symbol indicates that high
voltage is present inside. It is
dangerous to make any kind of
contact with any internal part of this
product.
AC voltage: Rated voltage marked
with this symbol is AC voltage.
This symbol indicates that this
product has included important
literature concerning operation and
maintenance.
DC voltage: Rated voltage marked
with this symbol is DC voltage.
Class II product: This symbol indicates
that a safety connection to electrical
earth (ground) is not required. If this
symbol is not present on a product
with a mains lead, the product
MUST have a reliable connection to
protective earth (ground).
Caution. Consult instructions for use:
This symbol instructs the user to
consult the user manual for further
safety related information.
Before Using the Product
Chapter 01

5
Cleaning
High-glossy models can develop white stains on the surface if an ultrasonic wave humidifier is used
nearby.
―Contact your nearest Samsung Customer Service Centre if you want to clean the inside of the product
(Service fee will be charged.)
Do not press the product screen with hands or other objects. There is a risk of damaging the screen.
―Exercise care when cleaning as the panel and exterior of advanced LCDs are easily scratched.
―Take the following steps when cleaning.
1
Power off the product and PC.
2
Disconnect the powercord from the product.
―Hold the powercable by the plug and do not touch the cable with wet hands. Otherwise, an electric
shock may result.
3
Wipe the product with a clean, soft and dry cloth.
‒Do not apply a cleaning agent that contains alcohol, solvent, or surfactant to the product.
‒Do not spray water or detergent directly on the product.
4
Wet a soft cloth in water, wing it out well, and then use the cloth to wipe the exterior of the product
clean.
5
Connect the power cord to the product when cleaning is finished.
6
Power on the product and PC.
Electricity and Safety
Warning
•Do not use a damaged power cord or plug, or a loose power socket.
•Do not use multiple products with a single power socket.
•Do not touch the power plug with wet hands.
•Insert the power plug all the way in so it is not loose.
•Connect the power plug to a grounded power socket (type1 insulated devices only).
•Do not bend or pull the power cord with force. Be careful not to leave the power cord under a heavy
object.
•Do not place the power cord or product near heat sources.
•Clean any dust around the pins of the power plug or the power socket with a dry cloth.
Caution
•Do not disconnect the power cord while the product is being used.
•Only use the power cord provided with your product by Samsung. Do not use the power cord with
other products.
•Keep the power socket where the power cord is connected unobstructed.
‒The power cord must be disconnected to cut off power to the product when an issue occurs.
•Hold the plug when disconnecting the power cord from the power socket.

6
Warning
•DO NOT PLACE CANDLES, INSECT REPELLANTS OR CIGARETTES ON TOP OF THE PRODUCT. DO NOT
INSTALL THE PRODUCT NEAR HEAT SOURCES.
•Keep the plastic packaging out of the reach of children.
‒Children may suffocate.
•Do not install the product on an unstable orvibrating surface (insecure shelf, sloped surface, etc.)
‒The product may fall and become damaged and/or cause an injury.
‒Using the product in an area with excess vibration may damage the product or cause a fire.
•Do not install the product in a vehicle or a place exposed to dust, moisture (water drips, etc.), oil, or
smoke.
•Do not expose the product to direct sunlight, heat, or a hot object such as a stove.
‒The product lifespan may be reduced or a fire may result.
•Do not install the product within the reach of young children.
‒The product may fall and injure children.
•Edible oil (such as soybean oil) may damage or distort the product. Keep the product away from oil
pollution. And do not install or use the product in the kitchen or near the kitchen stove.
Caution
•Do not drop the product while moving.
•Do not set down the product on its front.
•When installing the product on a cabinet or shelf, make sure that the bottom edge of the front of
the product is not protruding.
‒The product may fall and become damaged and/or cause an injury.
‒Install the product only on cabinets or shelves of the right size.
•Set down the product gently.
‒Product failure or personal injury may result.
•Installing the product in an unusual place (a place exposed to a lot of fine dust, chemical
substances, extreme temperatures or a significant presence of moisture, or a place where
the product will operate continuously for an extended period of time) may seriously affect its
performance.
‒Be sure to consult Samsung Customer Service Centre if you want to install the product at such a
place.
Installation

7
Warning
•There is a high voltage inside the product. Never disassemble, repair or modify the product
yourself.
‒Contact Samsung Customer Service Centre for repairs.
•To move the product, first disconnect all the cables from it, including the power cable.
•If the product generates abnormal sounds, a burning smell or smoke, disconnect the power cord
immediately and contact Samsung Customer Service Centre.
•Do not let children hang from the product or climb on top of it.
‒Children may become injured or seriously harmed.
•If the product is dropped or the outer case is damaged, turn off the power and disconnect the
power cord. Then contact Samsung Customer Service Centre.
‒Continued use can result in a fire or electric shock.
•Do not leave heavy objects or items that children like (toys, sweets, etc.) on top of the product.
‒The product or heavy objects may fall as children try to reach for the toys or sweets resulting in a
serious injury.
•During a lightning or thunderstorm, power off the product and remove the power cable.
•Do not drop objects on the product or apply impact.
•Do not move the product by pulling the power cord or any cable.
•If a gas leakage is found, do not touch the product or power plug. Also, ventilate the area
immediately.
•Do not lift or move the product by pulling the power cord or any cable.
•Do not use or keep combustible spray or an inflammable substance near the product.
•Ensure the vents are not blocked by tablecloths orcurtains.
‒An increased internal temperature may cause a fire.
•Do not insert metallic objects (chopsticks, coins, hairpins, etc) or objects that burn easily (paper,
matches, etc) into the product (via the vent or input/output ports, etc).
‒Be sure to power off the product and disconnect the power cord when water or other foreign
substances have entered the product. Then contact Samsung Customer Service Centre.
•Do not place objects containing liquid (vases, pots, bottles, etc) or metallic objects on top of the
product.
‒Be sure to power off the product and disconnect the power cord when water or other foreign
substances have entered the product. Then contact Samsung Customer Service Centre.
Operation

8
Caution
•Leaving the screen fixed on a stationary image for an extended period of time may cause
afterimage burn-in or defective pixels.
‒Set the screen to power-saving mode or moving-picture screen saverwhen not using the
product for an extended period of time.
•Disconnect the powercord from the power socket if you do not plan on using the product for an
extended period of time (vacation, etc).
‒Dust accumulation combined with heat can cause a fire, electric shock or electric leakage.
•Use the product at the recommended resolution and frequency.
‒Your eyesight may deteriorate.
•Do not put AC/DC adapters together.
•Remove the plastic bag from the AC/DC adapter before you use it.
•Do not let water enter the AC/DC adapter device or get the device wet.
‒An electric shock or fire may result.
‒Avoid using the product outdoors where it can be exposed to rain or snow.
‒Be careful not to get the AC/DC adapterwet when you wash the floor.
•Do not put the AC/DC adapter near to any heating apparatus.
‒Otherwise, a fire may result.
•Keep the AC/DC adapter in a well-ventilated area.
•If you place the AC/DC power adapter hanging with the cord input facing upwards, water or other
foreign substances could enter the Adapter and cause the Adapter to malfunction.
Make sure to rest the AC/DC power adapter flat on a table or the floor.
•Do not hold the product upside-down or move it by holding the stand.
‒The product may fall and become damaged or cause an injury.
•Looking at the screen too close for an extended period of time can deteriorate your eyesight.
•Do not use humidifiers or stoves around the product.
•Rest your eyes for more than 5 minutes or look at distance objects for every1 hour of product use.
•Do not touch the screen when the product has been turned on for an extended period of time as it
will become hot.
•Store small accessories out of the reach of children.
•Exercise caution when adjusting the product angle.
‒Your hand or finger may get stuck and injured.
‒Tilting the product at an excessive angle may cause the product to fall and an injury may result.
•Do not place heavy objects on the product.
‒Product failure or personal injury may result.

9
Preparations
Chapter 02
Parts
Control Panel
―The colour and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
Function Key Guide
Power LED
UP(REAR)
PRESS(ENTER)
LEFT
JOG Button
DOWN(FRONT)
RIGHT
Return
Parts Description
JOG Button
Multi directional button that helps navigate.
―JOG button is located in the bottom of the screen center, and has 5
directions as UP/DOWN/LEFT/RIGHT/PRESS(ENTER).
Power LED
This LED is power status indicator and works as
•Power On (Power button): Power LED Off
•Power saving mode: Power LED Blinking
•Power Off (Power button): Power LED On
―The Power LED operation can be swapped by changing in the menu.
(System → Power LED On) Function Key Guide mayvary depending on
the function or product model. Please refer to the actual product.
―Press the power button on the JOG button to turn it on or off.
Function Key Guide
Press the JOG button when the screen is turned on. The Function Key
Guide will appear. To access the onscreen menu when the guide is
displayed, press the corresponding direction button again.
―Function Key Guide may vary depending on the function or product
model. Please refer to the actual product.

10
Function Key Guide
―To use the Function Key Guide, press the JOG button when the screen is turned on. Then the following window appears.
Return
UP/DOWN/LEFT/RIGHT: Move to the item you want. The description for each item will appear when the focus changes.
―When the product not displays the OSD menu, the JOG Button could be used as below.
―Up : Change the settings for Brightness, Contrast, and Sharpness.
―Down : Change the Volume setting.
―Left or Right : Change the Source setting.
PRESS(ENTER): The selected item will be applied.
Parts Description
Source Selects to change the input source by moving the JOG button in the Function Key Guide screen. A message will appear on the top left corner of the screen if the input source has
been changed.
Menu
Selects by moving the JOG button in the Function Key Guide screen.
This product shows the menu as an on-screen display.
On screen display menu lock: Lock the on screen display menu to maintain the current settings or prevent other users from changing settings.
Enable/Disable: To enable or disable the on screen display menu lock, display the “Menu” screen, move the JOG button to the right to go to the next stage, and then press and hold the
button to the left for10 seconds until the Function Key Guide disappears.
―If the on screen display menu lock is enabled, Brightness and Contrast can be adjusted.
Eye Saver Mode, Sound (Volume) and HDMI-CEC is available. Self Diagnosis and Information can be viewed.
Eye Saver Mode
Selects by moving the JOG button in the Function Key Guide screen.
Press to enable or disable Eye Saver Mode. ( : On, : Off)
The items below are not available if the Eye Saver Mode function is enable.
•Picture → Picture Mode, Brightness, Color, Game Mode
•System → Eco Saving Plus
Power Off Selects to turn the product off by moving the JOG button in the Function Key Guide screen.
Return Exit the Function Key guide menu by using the JOG button to select the icon when the Function Key Guide screen is displayed.
―Actual models because of functional variation, Function Key Guide options will be different.

11
Direct Key Guide
―On the Direct Key Guide screen, the following menu options appearwhen the product screen is switched on or the input source is changed.
―The function buttons page shows if Eye Saver Mode is enabled.
: On
: Off
Analog mode
Brightness
Volume
Source
Eye Saver Mode Off
Auto Adjustment
Features
―Analog mode option
•UP: Adjust Brightness, Contrast.
•DOWN: Adjust Volume, Mute.
•LEFT: Adjust Source.
•RIGHT: Adjust Auto Adjustment.
―Changing the resolution in Display Properties will activate the Auto Adjustment function.
―This function is only available in Analog mode.
•PRESS(ENTER): Display Function Key Guide.
HDMI, DisplayPort mode
Brightness
Volume
Source
Eye Saver Mode Off
Features
―HDMI, DisplayPort mode option
•UP: Adjust Brightness, Contrast, Sharpness.
•DOWN: Adjust Volume, Mute.
•LEFT/RIGHT: Adjust Source.
•PRESS(ENTER): Display Function Key Guide.

12
Types of Ports
―The functions available may vary depending on the product model. The colour and shape of parts may
differfrom what is shown. Specifications are subject to change without notice to improve quality. Refer to
the actual product.
HDMI IN PC INDP IN DC 19V
HDMI INAUDIO IN PC IN DC 19V DP IN
C24T55*
C27T55* / C32T55*
Port Description
AUDIO IN
Receives sound from a PC via an audio cable.
―C27T55* / C32T55* model only.
Connect to an audio output device such as headphones or earphones.
DP IN
Connects to a PC using a DP cable.
Connects to a source device using an HDMI cable or HDMI-DVI cable.
PC IN
Connect to a PC using the D-SUB cable.
DC 19V
Connects to the AC/DC adapter.
Anti-theft Lock
―An anti-theft lock allows you to use the product securely even in public places.
―The locking device shape and locking method depend on the manufacturer. Refer to the user guide
provided with your anti-theft locking device for details.
To lock an anti-theft locking device:
1
Fix the cable of your anti-theft locking device to a heavy object such as a desk.
2
Put one end of the cable through the loop on the other end.
3
Insert the locking device into the anti-theft lock slot at the back of the product.
4
Lock the locking device.
‒An anti-theft locking device can be purchased separately.
‒Refer to the user guide provided with your anti-theft locking device for details.
‒Anti-theft locking devices can be purchased at electronics retailers or online.

13
Installation
Attaching the Stand
―Before assembling the product, place the product down on a flat and stable surface so that the screen is
facing downwards.
The product is curved. Placing pressure on the product when on a flat surface may damage the product.
When the product is on the ground facing up or down, do not put pressure on it.
1
2
34
Insert the stand neck into the stand base in the
direction shown in the figure.
Turn the stand neck 180° into normal position. Align the stand with the stand neck guide and
then turn the screw on the bottom of the stand
to fix the stand.
Place the protective Styrofoam (cushion)
included in the package on the floor and place
the product facing down on the Styrofoam, as
shown in the image. If Styrofoam is unavailable,
use a thick sitting mat.
56
Hold the main body of the product with your
hand as shown by the figure. Push the assembled
stand into the main body in the direction of the
arrow as shown in the figure.
Connect the power supply and the signal cable
as shown in the figure.

14
Removing the Stand
―Before removing the stand from the product, place the product on a flat and stable surface with the screen facing down.
The product is curved. Placing pressure on the product when on a flat surface may damage the product. When the product is on the ground facing up or down, do not put pressure on it.
123
4
Place the protective Styrofoam (cushion)
included in the package on the floor and place
the product facing down on the Styrofoam, as
shown in the image. If Styrofoam is unavailable,
use a thick sitting mat.
Press the lower part of the monitorwith one
hand, and pull the stand with the other hand in
the direction of the arrow as shown in the figure.
Remove the stand neck from the stand base
by turning the screw in the arrow direction as
shown in the figure.
Turn the stand neck 180°.
5
Remove the stand neck from the stand in the
direction shown in the figure.

15
Precautions for moving the product
•Do not press down on the product. There is a
risk of damaging the product.
•Do not directly apply pressure on the screen.
•Do not hold the screen when moving the
product.
•Do not hold the product upside down only by
the stand.
•Hold the lower corners or edges of the
product when moving it.
Adjusting the Product Tilt
―The colour and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
-3.0° (±2.0°) ~ 20° (±2.0°)
•The product tilt can be adjusted.
•Hold the lower part of the product and adjust the tilt carefully.

16
Connecting and Using a Source Device
Chapter 03
Read below before installing the product.
1
Before installing the product, check the shapes of both ports of the supplied signal cables and the
shapes and locations of the ports on the product and external device.
2
Before installing the product, make sure you remove the power cables from both the product and
the external device to prevent damage to the product due to a short circuit or over current.
3
After all signal cables have been properly connected, connect the power cables back to the product
and the external device.
4
After installation is completed, make sure you read the user guide to acquaint yourself with the
product functions, precautions and other information required to use the product properly.
Connecting and Using a PC
Select a connection method suitable foryour PC.
―Connecting parts may differ in different products.
―Provided ports may vary depending on the product.
―First make sure that the power cables for product and other devices (e.g. PC, settop box, etc.) are removed.
Connection Using the D-SUB Cable (Analogue Type)
PC IN
(C27T55* / C32T55* model only.)

17
Connection Using the HDMI Cable
HDMI IN
―When connecting an HDMI cable, use the cable that came with the components of the product. If you use
an HDMI cable other than provided by Samsung, the image quality may be degraded.
Connection Using an HDMI-DVI Cable
HDMI IN
(C27T55* / C32T55* model only.)
―The audio function is not supported if the source device is connected using the HDMI-DVI cable.
―The optimum resolution may not be available with an HDMI-DVI cable.
―If you connect a PC using a HDMI-DVI cable, set to DVI PC. ( → System → PC/AV Mode → HDMI)
Connection Using an DP Cable
DP IN
―A DP cable shorter under1.5 m in length is recommended. Using a cable longer than 1.5 m can affect the
picture quality.
Connecting to headphones or earphones
―Use headphones when activating sound with a D-SUB + AUDIO (C27T55* / C32T55* model only.), HDMI-
HDMI or DP cable.
―The headphones or earphones jack supports only the 3 conductor tip-ring-sleeve (TRS) type.

18
Connecting the Power
1
3
2
1
Connect the power cable to the AC/DC adapter. Then, connect the AC/DC adapter to the DC 19V
port on the back of the product.
2
Next, connect the power cable to the power outlet.
3
Press the JOG button at the bottom of the product to turn it on.
―The input voltage is switched automatically.
Tidying Up the Connected Cables
123
45

19
Correct posture to use the product
Use the product in the correct posture as follows:
•Straighten your back.
•Allow a distance of 45 to 50cm between your eye and the screen, and look slightly downward at
the screen.
•Keep your eyes directly in front of the screen.
•Adjust the angle so light does not reflect on the screen.
•Keep your forearms perpendicular to your upper arms and level with the back of your hands.
•Keep your elbows at about a right angle.
•Adjust the height of the product so you can keep your knees bent at 90 degrees or more, your heels
attached to the floor, and your arms lower than your heart.
•Do the Eye excercises or blink frequently, then eye fatigue will be relieved.
Driver Installation
―You can set the optimum resolution and frequency for this product by installing the corresponding drivers.
―To install the latest version of the product driver, download it from the Samsung Electronics website at
http://www.samsung.com.
Setting Optimum Resolution
An information message about setting optimum resolution will appear if you power on the product for
the first time after purchase.
Select a language on information message and change the resolution on your PC to the optimum
setting.
―If the optimum resolution is not selected, the message will appear up to three times for a specified time
even when the product is turned off and on again.
―If you want to set the optimum resolution foryour computer. Please refer to (Q&A) → “How can I change the
resolution?”

20
Screen Setup
Function Key Guide → → Picture
Configure the screen settings such as brightness. A detailed description of each function is provided. Refer to your product for details.
Chapter 04
―The functions available may vary depending on the product model. The colour and shape of parts may
differfrom what is shown. Specifications are subject to change without notice to improve quality.
Picture Mode
This menu provides an optimum picture quality suitable for the environment where the product will be
used.
―This menu is not available when Eco Saving Plus is enabled.
―This menu is not available when Game Mode is enabled.
―This menu is not available when Eye Saver Mode is enabled.
In PC mode
•Custom: Customise the contrast and brightness as required.
•Standard: Obtain a picture quality suitable for editing documents or using Internet.
•Cinema: Obtain the brightness and sharpness of monitors suitable for enjoying video and DVD
content.
•Dynamic Contrast: Obtain balanced brightness through automatic contrast adjustment.
In AV mode
When the external input is connected through HDMI/DP and PC/AV Mode is set to AV, Picture Mode
has four automatic picture settings (Dynamic, Standard, Movie and Custom) that are preset at the
factory. You can activate either Dynamic, Standard, Movie or Custom. You can select Custom which
automatically recalls your personalised picture settings.
•Dynamic: Select this mode to view a sharper image than in Standard mode.
•Standard: Select this mode when the surroundings are bright.
•Movie: Select this mode when the surroundings are dark. This will save power and reduce eye
fatigue.
•Custom: Select this mode when you want to adjust the image according to your preferences.