Samsung CH890 Series User manual

User Manual
The color 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.
C34H890WJ*
•An administration fee may be charged if either
‒(a) an engineer is called out at your request and there is no defect in the product
(i.e. where you have failed to read this user manual).
‒(b) you bring the unit to a repair center and there is no defect in the product
(i.e. where you have failed to read this user manual).
•The amount of such administration charge will be advised to you before any work or home visit is carried out.

2
Table of contents
Before Using the Product
Securing the Installation Space 4
Precautions for storage 4
Safety Precautions 4
Symbols 4
Cleaning 5
Electricity and Safety 5
Installation 6
Operation 7
Preparations
Parts 9
Control Panel 9
Direct Key guide 10
Function Key Guide 11
Changing Brightness, Contrast and Eye Saver Mode
settings 13
Changing the Volume setting 13
Reverse Side 14
Adjusting the Product Tilt and Height 15
Anti-theft Lock 16
Precautions for moving the monitor 16
Installing a Wall-mount Kit or Desktop Stand 17
Installation 18
Attaching the Stand 18
Removing the Stand 19
Connecting and Using a Source Device
Read below before installing the monitor. 20
Connecting and Using a PC 20
Connection Using the HDMI Cable 20
Connection Using the USB Type-C Cable 21
Connection Using the DP Cable 21
Connecting to Headphones 21
Connecting the Product to a PC as a USB HUB 22
Connecting a PC to the Product 22
Utilizing the Product as a USB HUB 22
Connecting the Power 23
Tidying Up the Connected Cables 24
Correct posture to use the product 25
Driver Installation 25
Setting Optimum Resolution 25
Screen Setup
SAMSUNG MAGIC Bright 26
Brightness 27
Contrast 27
Sharpness 27
Color 27
SAMSUNG MAGIC Upscale 28
HDMI Black Level 28
Eye Saver Mode 28
Game Mode 28
Response Time 28
Picture Size 29
Screen Adjustment 29
Configuring the PIP/PBP Settings
PIP/PBP Mode 30
Size 31
Position 31
Sound Source 31
Source 32
Picture Size 32
Contrast 33

3
Table of contents
Adjusting OSD (On Screen
Display) settings
Transparency 34
Position 34
Language 34
Display Time 34
Setup and Reset
DisplayPort Ver. 35
HDMI Mode 35
FreeSync 36
Eco Saving Plus 38
Off Timer 38
PC/AV Mode 38
Source Detection 39
Key Repeat Time 39
Power LED On 39
Reset All 39
Information 39
Installing the Software
Easy Setting Box 40
Restrictions and Problems with the Installation 40
System Requirements 40
Troubleshooting Guide
Requirements Before Contacting Samsung Customer
Service Center 41
Testing the Product 41
Checking the Resolution and Frequency 41
Check the following. 41
Q & A 43
Specifications
General 44
Standard Signal Mode Table 45
Appendix
Responsibility for the Pay Service (Cost to
Customers) 47
Not a product defect 47
A Product damage caused by customer's fault 47
Others 47
Extended warranty 48

4
Securing the Installation Space
Ensure some space around the product forventilation. An internal temperature rise may cause fire and
damage the product. Be sure to allow the amount of space as shown below or greaterwhen installing
the product.
―The exterior may differ depending on the product.
10 cm (3.93 Inches) 10 cm (3.93 Inches)
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)
10 cm
(3.93 Inches)
Precautions for storage
High-glossy models can develop white stains on the surface if an ultrasonic wave humidifier is used
nearby.
―Contact your nearest Samsung Customer Service Center if you want to clean the inside of the product
(Service fee will be charged.)
Do not press the monitor screen with hands or other objects. There is a risk of damaging the screen.
Safety Precautions
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.
This symbol alerts you that important literature concerning operation
and maintenance has been included with this product.
Symbols
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.
Before Using the Product
Chapter 01

5
Cleaning
―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 computer.
2
Disconnect the power cord from the product.
―Hold the power cable by the plug and do not touch the cable with wet hands. Otherwise, an electric
shock may result.
3
Wipe the monitorwith a clean, soft and dry cloth.
‒Do not apply a cleaning agent that contains alcohol, solvent, or surfactant to the monitor.
‒Do not spray water or detergent directly on the product.
4
Wet a soft and dry cloth in water and wring thoroughly to clean the exterior of the product.
5
Connect the power cord to the product when cleaning is finished.
6
Power on the product and computer.
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 (type 1 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.
•Do not install the product in poorly ventilated spaces such as a bookcase or closet.
•Install the product at least 10 cm away from the wall to allow ventilation.
•Keep the plastic packaging out of the reach of children.
‒Children may suffocate.
•Do not install the product on an unstable or vibrating 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 Center 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 Centerfor 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 Center.
•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 orthe outer case is damaged, turn off the power and disconnect the
power cord. Then contact Samsung Customer Service Center.
‒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 or curtains.
‒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 Center.
•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 Center.
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.
‒Activate power-saving mode or a moving-picture screen saver if you will not be using the
product for an extended period of time.
•Disconnect the power cord 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 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 or stand height.
‒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.
•When using headphones or earphones, do not turn the volume too high.
‒Having the sound too loud may damage your hearing.

9
Preparations
Chapter 02
Parts
Control Panel
―The color and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
Power LED
PRESS(ENTER)
LEFT RIGHT
DOWN
UP
JOG Button
Return
Function Key Guide
Icons Description
JOG Button
Multi directional button that helps navigate.
―The JOG button is located on the rear left side of the product. The
button can be used to move up, down, left or right, or as Enter.
Power LED
This LED is power status indicator and works as
•Power On (Power button): Off
•Power saving mode: Blinking
•Power Off (Power button): On
―The power Indicator operation can be swapped by changing in the
menu. (System Power LED On) Actual models because of functional
variation maybe haven’t this function.
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
Direct Key guide
―The shortcut button screen (OSD menu) shown below is displayed only when the monitor screen is turned on, the computer resolution changes, or the input source changes.
―The function buttons page shows if Eye Saver Mode is enabled.
: On
: Off
Eye Saver Mode
Volume
Features
Eye Saver Mode Off
•/ : Adjust Brightness, Contrast, Eye Saver Mode.
•: Adjust Volume.
•: Display Function Key Guide.

11
Function Key Guide
―To enter the main menu or to use other items, press the JOG button to display the Function Key Guide. You can exit by pressing the JOG button again.
Return
UP/DOWN/LEFT/RIGHT: Move to the item you want. The description for each item will appearwhen the focus changes.
PRESS(ENTER): The selected item will be applied.
Icons Description
Selects to change the input signal 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 signal has
been changed.
Selects by moving the JOG button in the function key guide screen.
The OSD (On Screen Display) of your Monitor’s feature appears.
OSD control lock: Maintain the current settings, or lock the OSD control to prevent unintended changes to settings.
Enable/Disable: To lock/unlock the OSD control, press the LEFT button for10 seconds when the main menu displayed.
―If the OSD control is locked, Brightness and Contrast can be adjusted. PIP/PBP is available.
Eye Saver Mode is available. Information can be viewed.
Selects by moving the JOG button in the function key guide screen.
Press the button when configuring settings for the PIP/PBP function is required.
Selects to turn the Monitor off by moving the JOG button in the function key guide screen.
―Actual models because of functional variation, Function key guide options will be different.

12
When the monitor displays nothing (i.e. Power saving mode or Non-signal mode), 2 direct keys for
control source and power could be used as below.
JOG Button Power saving/Non-signal mode
UP Source Change
Down
PRESS(ENTER) for 2 seconds
Power Off
When the monitor displays the Main menu the JOG Button could be used as below.
JOG Button Action
UP/DOWN Move the option
LEFT
Exit the Main menu.
Close Sublist without saving value.
Value decreases in the slider.
RIGHT
Move to next depth.
Value increases in the slider.
PRESS(ENTER)
Move to next depth.
Save the value and close Sublist.

13
Changing Brightness, Contrast and Eye Saver Mode
settings
You can adjust Brightness, Contrast or Eye Saver Mode by moving the JOG button up or down, if no
OSD menu is displayed.
Eye Saver Mode
Brightness
Contrast
Off
―The displayed image may differ depending on the model.
Eye Saver Mode
―Not available when PIP/PBP Mode is set to On.
Brightness
―This menu is not available when
SAMSUNG
MAGIC
Bright is set to Dynamic Contrast mode.
―This menu is not available when Eco Saving Plus is enabled.
―This menu is not available when Eye Saver Mode is enabled.
Contrast
―This menu is not available when
SAMSUNG
MAGIC
Bright is in Cinema or Dynamic Contrast mode.
―This menu is not available when Game Mode is enabled.
―This menu is not available when PIP/PBP Mode is set to On and the Size is set to (PBP Mode).
Changing the Volume setting
You can adjust Volume by moving the JOG button left or right, if no OSD menu is displayed.
Volume 50
Mute
―The displayed image may differ depending on the model.
―If the audio quality of a connected input device is poor, the Auto Mute function on the product may mute
the sound or cause choppy audio when applying the headphones or speakers. Set the input volume forthe
input device to at least 20% and control the volume using the volume control (JOG button LEFT/RIGHT) on
the product.
―What is Auto Mute?
The function mutes the audio to improve sound effect when there is sound noise orwhen the input
signal is weak, usually due to a problem with the volume of an input device.
―To activate the Mute function, access the Volume control screen, then use the JOG button to move the
focus down. To deactivate the Mute function, access the Volume control screen, then increase or decrease
the Volume.

14
Reverse Side
―The color and shape of parts may differ from what is shown. Specifications are subject to change without notice to improve quality.
1
2
Port Description
Connect the power cord foryour monitor to the POWER IN port on the back
of the product.
Connects to a source device using an HDMI cable or HDMI-DVI cable.
Connects to a PC using a DP cable.
Connects to a source device using a USB Type-C cable. Compatible with a
USB cable version 3.0 or lower.
Port Description
1
2
Connect to a USB device.
These ports are enabled when a PC is connected to the using a USB
Type-C to A cable or a USB Type-C cable.
Connect to a USB device.
This port is enabled when a PC is connected to the using a USB Type-C
to A cable or a USB Type-C cable. And USB 3.0 is supported only when a PC
is connected to the using a USB Type-C to A cable.
Connect to an audio output device such as headphones.

15
Adjusting the Product Tilt and Height
―The color and shape of parts may differ from what is shown. Specifications are subject to change without
notice to improve quality.
0 ~ 135.0 mm (±5.0 mm)
-5.0° (±2.0°) ~ 24.0° (±2.0°)
-30.0° (±2.0°) ~ 30.0° (±2.0°)
•The monitor tilt and height can be adjusted.
•Hold the top center of the product and adjust the height carefully.
•When adjusting the stand height, you may hear a noise. This noise is generated because the ball
inside the stand slides when the stand height is adjusted. It is a normal noise and not a product
malfunction.
Caution
•Grasp the left and right sides of the monitor and adjust the tilt.
After adjusting the product tilt and height, if the screen is not level, take the following actions.
+2˚
-2˚
•Hold the bezel at both side edges and adjust the monitor angle until the screen becomes level. (Be
careful not to directly hold the LCD display.)
•The monitor angle can be adjusted from -2° to +2°.

16
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 userguide
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.
‒Referto the user guide provided with your anti-theft locking device for details.
‒Anti-theft locking devices can be purchased at electronics retailers or online.
Precautions for moving the monitor
•Do not directly apply pressure on the screen.
•Do not hold the screen when moving the
monitor.
•Do not hold the product upside down only by
the stand.
•Hold the lower corners or edges of the
monitorwhen moving it.
•

17
Installing a Wall-mount Kit or Desktop Stand
―Powerthe product off and remove the powercable from the power socket.
A
1
43
2
Attach the wall-mount kit or desktop stand here
Wall-mount bracket (optional)
Align the grooves and tightly fasten the screws on the bracket on the product with the corresponding
parts on the wall-mount kit or desktop stand you want to attach.
•Notes
‒Using a screw longer than the standard length can damage the internal components of the
product.
‒The length of screws required for a wall mount that does not comply with the VESA standards
may vary depending on the specifications.
‒Do not use screws that do not comply with the VESA standards. Do not attach the wall-mount kit
or desktop stand using excessive force. The product may get damaged or fall and cause personal
injury. Samsung shall not be held liable for any damage or injury caused by using improper
screws or attaching the wall-mount kit or desktop stand using excessive force.
‒Samsung shall not be held liable for any product damage or personal injury caused by using a
wall-mount kit other than the one specified or from an attempt to install the wall-mount kit on
your own.
‒To mount the product on a wall, ensure you purchase a wall-mount kit that can be installed10
cm or farther away from the wall.
‒Be sure to use a wall-mount kit that complies with the national standards.
‒To install the monitor using a wall mount, disconnect the stand base from the monitor.
Unit: mm (inches)
Model name VESA screw hole specs (A *
B) in millimeters
Standard Screw Quantity
C34H890WJ* 100.0 x 100.0 (3.9 x 3.9) 4.0 mm Φ, 0.7 pitch * 10.0 mm long 4 EA
―Do not install your Wall Mount Kit while your product is turned on. It may result in personal injury due to
electric shock.

18
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.
1234
Insert the stand neck into the stand base in the
direction shown in the figure.
Check that the stand neck is firmly connected.
Tightly fasten the connecting screw at the bottom
of the stand base.
Place the stand neck of the display on the device as
per the positions of the fasteners.
Stand assembly is complete.
- Caution
Do not press down on the monitor. There is a risk of
damaging the monitor.

19
Removing the Stand
―Before removing the stand from the monitor, place the monitor 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.
1234
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.
Push the key upward and hold. Turn the stand neck
of the display counterclockwise for10°.
After turning the stand neck of the display
counterclockwise for10°, lift the stand neck to
detach it from the device.
Turn the connecting screw at the bottom of the
stand base to separate it.
5
Remove the stand neck from the stand base by
pulling it in the direction of the arrow as shown in
the figure.
- Caution
Do not press down on the monitor. There is a risk of
damaging the monitor.

20
Connecting and Using a Source Device
Chapter 03
Read below before installing the monitor.
1
Check the shapes of both ends of the cables that came with the monitor, and check the shapes and
positions of the matching ports on the monitor and external devices.
2
Before connecting signal cables, disconnect the power cables for the monitor and external devices
from the power outlet to prevent device damage from a short circuit or overcurrent.
3
After connecting all signal cables, connect the power cables for the monitor and external devices
to the power outlet.
4
Read the user manual to familiarize yourself with the monitor functions, precautions, and proper
use, before using the installed monitor.
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.
Connection Using the HDMI Cable
Check to make sure that the power cables for the monitor and external devices, such as
computers and set-top boxes, are not connected to the power outlet.
HDMI IN
―When connecting an HDMI cable, use the cable that came with the components of the monitor. If you use
an HDMI cable otherthan provided by Samsung, the image quality may be degraded.