Iiyama ProLite XB2788QS-B1 User manual

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USER MANUAL
Thank you very much for choosing the
iiyama LCD monitor.
We recommend that you take a few
minutes to read carefully through
this brief but comprehensive manual
before installing and switching on the
monitor. Please keep this manual in a
safe place for your future reference.

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 We reserve the right to change specifi cations without notice.
 All trademarks used in this user manual are the property of their respective owners.
We recommend recycling of used product. Please contact your dealer or iiyama
service center. Recycle information is obtained via the Internet, using the address:
http://www.iiyama.com
You can access the Web page of diff erent countries from there.
CE MARKING DECLARATION OF CONFORMITY
This LCD monitor complies with the requirements of the EC/EU Directive 2014/30/EU “EMC
Directive”, 2014/35/EU “Low Voltage Directive”, 2009/125/EC “ErP Directive” and 2011/65/EU
“RoHS Directive”.
The electro-magnetic susceptibility has been chosen at a level that gives correct operation in
residential areas, business and light industrial premises and small-scale enterprises, inside as
well as outside of the buildings. All places of operation are characterised by their connection to
the public low voltage power supply system.
IIYAMA CORPORATION: Wijkermeerstraat 8, 2131 HA Hoofddorp, The Netherlands
Model No. : PL2788Q

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TABLE OF CONTENTS
FOR YOUR SAFETY ............................................................................1
SAFETY PRECAUTIONS................................................................1
SPECIAL NOTES ON LCD MONITORS .........................................3
CUSTOMER SERVICE ...................................................................3
CLEANING ......................................................................................3
BEFORE YOU OPERATE THE MONITOR ..........................................4
FEATURES......................................................................................4
CHECKING THE CONTENTS OF THE PACKAGE ........................4
WALL MOUNTING ..........................................................................5
FITTING AND REMOVAL OF BASE : ProLite XB2788QS ..............6
FITTING AND REMOVAL OF BASE : ProLite X2788QS ................7
CONTROLS AND CONNECTORS : ProLite XB2788QS ................8
CONTROLS AND CONNECTORS : ProLite X2788QS...................9
CONNECTING YOUR MONITOR : ProLite XB2788QS ................10
CONNECTING YOUR MONITOR : ProLite X2788QS ..................11
COMPUTER SETTING .................................................................12
ADJUSTING THE HEIGHT AND THE VIEWING ANGLE :
ProLite XB2788QS ........................................................................12
ADJUSTING THE VIEWING ANGLE : ProLite X2788QS .............13
OPERATING THE MONITOR .............................................................14
ADJUSTMENT MENU CONTENTS ..............................................15
POWER MANAGEMENT FEATURE .............................................21
TROUBLE SHOOTING ......................................................................22
RECYCLING INFORMATION .............................................................23
APPENDIX ........................................................................................24
SPECIFICATIONS : ProLite XB2788QS .......................................24
SPECIFICATIONS : ProLite X2788QS ..........................................25
DIMENSIONS : ProLite XB2788QS ..............................................26
DIMENSIONS : ProLite X2788QS .................................................26
COMPLIANT TIMING ....................................................................27

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FOR YOUR SAFETY 1
FOR YOUR SAFETY
WARNING
STOP OPERATING THE MONITOR IF YOU ARE AWARE OF ANY PROBLEMS
If you notice any abnormal phenomena such as smoke, strange sounds or fumes, unplug the
monitor and contact your dealer or iiyama service center immediately. Further use may be
dangerous and can cause fi re or electric shock.
NEVER REMOVE THE CABINET
High voltage circuits are inside the monitor. Removing the cabinet may expose you to the danger of
fi re or electric shock.
DO NOT PUT ANY OBJECT INTO THE MONITOR
Do not put any solid objects or liquids such as water into the monitor. In case of an accident, unplug
your monitor immediately and contact your dealer or iiyama service center. Using the monitor with
any object inside may cause fi re, electric shock or damage.
INSTALL THE MONITOR ON A FLAT, STABLE SURFACE
The monitor may cause an injury if it falls or is dropped.
DO NOT USE THE MONITOR NEAR WATER
Do not use where water may be splashed or spilt onto the monitor as it may cause fi re or electric
shock.
OPERATE UNDER THE SPECIFIED POWER SUPPLY
Be sure to operate the monitor only with the specifi ed power supply. Use of an incorrect voltage will
cause malfunction and may cause fi re or electric shock.
PROTECT THE CABLES
Do not pull or bend the power cable and signal cable. Do not place the monitor or any other heavy
objects on the cables. If damaged, the cables may cause fi re or electric shock.
ADVERSE WEATHER CONDITIONS
It is advisable not to operate the monitor during a heavy thunder storm as the continual breaks in
power may cause malfunction. It is also advised not to touch the plug in these circumstances as it
may cause electric shock.
SAFETY PRECAUTIONS

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2 FOR YOUR SAFETY
CAUTION
INSTALLATION LOCATION
Do not install the monitor where sudden temperature changes may occur, or in humid, dusty or
smoky areas as it may cause fi re, electric shock or damage. You should also avoid areas where the
sun shines directly on the monitor.
DO NOT PLACE THE MONITOR IN A HAZARDOUS POSITION
The monitor may topple and cause injury if not suitably located. Please also ensure that you do not
place any heavy objects on the monitor, and that all cables are routed such that children may not
pull the cables and possibly cause injury.
MAINTAIN GOOD VENTILATION
Ventilation slots are provided to keep the monitor from overheating. Covering the slots may cause
fi re. To allow adequate air circulation, place the monitor at least 10 cm (or 4 inches) from any walls.
Do not remove the tilt stand when operating the monitor. Ventilation slots on the back of the
cabinet will be blocked and the monitor may overheat if the stand is removed. This may cause fi re
or damage. Operating the monitor on its back, side, upside down or on a carpet or any other soft
material may also cause damage.
DISCONNECT THE CABLES WHEN YOU MOVE THE MONITOR
When you move the monitor, turn off the power switch, unplug the monitor and be sure the signal
cable is disconnected. If you do not disconnect them, it may cause fi re or electric shock.
UNPLUG THE MONITOR
If the monitor is not in use for a long period of time it is recommended that it is left unplugged to
avoid accidents.
HOLD THE PLUG WHEN DISCONNECTING
To disconnect the power cable or signal cable, always pull it by the plug. Never pull on the cable
itself as this may cause fi re or electric shock.
DO NOT TOUCH THE PLUG WITH WET HANDS
Pulling or inserting the plug with wet hands may cause electric shock.
WHEN YOU INSTALL THE MONITOR ON YOUR COMPUTER
Be sure the computer is strong enough to hold the weight of the monitor, otherwise, you may
damage your computer.
CAREFUL! PROTECT YOUR HANDS AND FINGERS

Be careful not to hurt your fi ngers or hands when you change the height or the angle.
 Injury can occur if care is not taken to avoid fi nger contact with the displays base when adjusting
the height. (Just for height adjustable model.)
REMARK FOR 24/7 USAGE
This product is not specifi cally designed for 24/7 usage in all environments.
OTHERS
ERGONOMIC RECOMMENDATIONS
To eliminate eye fatigue, do not operate the monitor against a bright background or in a dark room.
For optimal viewing comfort, the monitor should be just below eye level and 40-60 cm (16-24 inches)
away from your eyes. When using the monitor over a prolonged time, a ten minute break every hour
is recommended as looking at the screen continuously can cause eye strain.

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FOR YOUR SAFETY 3
The following symptoms are normal with LCD monitors and do not indicate a problem.
NOTE 
When you first turn on the LCD monitor, the picture may not fit in the display area
because of the type of computer that is used. In this case, adjust the picture position to
the correct position.

You may fi nd slightly uneven brightness on the screen depending on the desktop pattern
you use.

Due to the nature of the LCD screen, an afterimage of the previous screen may remain
after switching the image, when the same image is displayed for hours. In this case, the
screen can be recovered slowly by changing the image or turning off the Power Switch
for some hours.
SPECIAL NOTES ON LCD MONITORS

If you have to return your unit for service and the original packaging has been
discarded, please contact your dealer or iiyama service center for advice or replacement
packaging.
WARNING 
If you drop any materials or liquids such as water into the monitor when cleaning,
unplug the power cable immediately and contact your dealer or iiyama service center.
CAUTION 
For safety reasons, turn off the power switch and unplug the monitor before you
clean it.

To protect the LCD panel, do not scratch or rub the screen with a hard object.

Never use any of the following strong solvents. These will damage the cabinet and
the LCD screen.

Touching the cabinet with any product made from rubber or plastic for a long time
may cause degeneration or loss of paint on the cabinet.
Thinner
Benzine
Abrasive cleaner
Spray-type cleaner
Wax
Acid or Alkaline solvent
CABINET Stains can be removed with a cloth lightly moistened with a mild detergent solvent.
Then wipe the cabinet with a soft dry cloth.
LCD
SCREEN
Periodic cleaning with a soft dry cloth is recommended.
Don't use tissue paper etc. because these will damage the LCD screen.
CUSTOMER SERVICE
CLEANING
NOTE
NOTE

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4 BEFORE YOU OPERATE THE MONITOR
The following accessories are included in your package. Check to see if they are enclosed with
the monitor. If anything is missing or damaged, please contact your local iiyama dealer or regional
iiyama offi ce.
BEFORE YOU OPERATE THE MONITOR
CHECKING THE CONTENTS OF THE PACKAGE
FEATURES
 Supports Resolutions up to 2880 × 1620 (Native Resolution 2560 × 1440)
 High Contrast 1000:1 (Typical), Adv. Contrast Function Available / Brightness
350cd/m2 (Typical) / Quick Response Time 5ms (Gray to Gray)
 Supports AMD FreeSync™ technology (through HDMI/DisplayPort-input)
 Flicker - Free
 Blue Light Reducer
 Digital Character Smoothing
 Stereo Speakers
2 × 2.5W Stereo Speakers

Plug & Play VESA DDC2B Compliant
Windows® Vista/7/8/8.1/10 Compliant
 Power Management (VESA DPMS Compliant)
 VESA Mounting Standard (100mm×100mm) Compliant
 Keyhole for Security Lock
*1 The rating of the Power Cable enclosed in 120V area is 10A/125V. If you are using
a power supply higher than this rating, then a power cable with a rating of 10A/250V
must be used. However, all guarantees and warranties are void for any
problems or damage caused by a power cable not supplied by iiyama.
*2 Accessory for ProLite XB2788QS.

Power Cable*1
HDMI Cable  DisplayPort Cable

Stand Base  Screw for stand fi xing (3pcs)*2
Safety Guide

Quick Start Guide
CAUTION

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BEFORE YOU OPERATE THE MONITOR 5

When you use with the wall mounting, in consideration of thickness of the mounting
stage, tighten the M4 Screw with washer which “L” length is 7mm to fasten the
monitor. Using the screw longer than this may cause electric shock or damage
because it may contact with the electrical parts inside the monitor.

Please check if the wall or ceiling can support the weight of the monitor before
mounting it.
WALL MOUNTING
WARNING
Screw
Chassis
Mounting Stage
L

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6 BEFORE YOU OPERATE THE MONITOR

Put the monitor on a stable surface. The monitor may cause injury or damage if it
falls or is dropped.

Do not give a strong impact to the monitor. It may cause damage.

Unplug the monitor before removal or installation to avoid electric shock or damage.
CAUTION
<Installation>
Put a piece of soft cloth on the table beforehand to prevent the monitor from being scratched.
Lay the monitor fl at on a table with front face down.
Hold the monitor and push the Stand-Base.
Use ‘thumb screw’ provided to secure base to monitor column.
<Removal>
Put a piece of soft cloth on the table beforehand to prevent the monitor from being scratched.
Lay the monitor fl at on a table with front face down.
Remove ‘thumb screw’ to remove base from monitor column.
FITTING AND REMOVAL OF BASE : ProLite XB2788QS
Thumb screw for Stand-Base fi xing
Stand-Base
<Stopper>
Put the monitor on a fl at surface. Press the stopper at
the back of the stand while pushing the monitor from the
top. Careful attention is required as the monitor is sprung
loaded and the stand may expand quickly. Stopper

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BEFORE YOU OPERATE THE MONITOR 7

Put the monitor on a stable surface. The monitor may cause injury or damage if it
falls or is dropped.

Do not give a strong impact to the monitor. It may cause damage.

Unplug the monitor before removal or installation to avoid electric shock or damage.
CAUTION
FITTING AND REMOVAL OF BASE : ProLite X2788QS
<Installation>
Put a piece of soft cloth on the table beforehand to prevent the monitor from being scratched.
Lay the monitor fl at on a table with front face down.
Hold the monitor and push the Stand-Base until it clicks and is secure.
<Removal>
Put a piece of soft cloth on the table beforehand to prevent the monitor from being scratched.
Lay the monitor fl at on a table with front face down.
Press and hold the hooks inside, and pull the Stand-Base.
Hooks
Stand-Base

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8 BEFORE YOU OPERATE THE MONITOR
CONTROLS AND CONNECTORS : ProLite XB2788QS
Power Switch ( )
Power Indicator
Blue: Normal operation
Orange: Power Management
Input / Select Button (INPUT/SELECT)*
Scroll up / Audio Adjust Button ( / )*
Scroll down / i-Style Color Button ( / i )*
Menu Button (MENU/EXIT)
Speakers
Keyhole for Security Lock
You can fasten a security lock and cable to prevent the monitor from being removed
without your permission.
Headphone Connector (EARPHONE)
Audio Connector (AUDIO IN)
HDMI Connector (HDMI)
DVI-D 24pin Connector (DVI)
DisplayPort Connector (DP)
Cable Holes
AC Connector ( : Alternating current) (AC POWER IN)
* You can skip the Menu items and display an adjustment scale directly.
<Front> <Back>
NOTE
NOTE

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BEFORE YOU OPERATE THE MONITOR 9
CONTROLS AND CONNECTORS : ProLite X2788QS
Power Switch ( )
Power Indicator
Blue: Normal operation
Orange: Power Management
Input / Select Button (INPUT/SELECT)*
Scroll up / Audio Adjust Button ( / )*
Scroll down / i-Style Color Button ( / i )*
Menu Button (MENU/EXIT)
Speakers
Keyhole for Security Lock
You can fasten a security lock and cable to prevent the monitor from being removed
without your permission.
Headphone Connector (EARPHONE)
Audio Connector (AUDIO IN)
HDMI Connector (HDMI)
DVI-D 24pin Connector (DVI)
DisplayPort Connector (DP)
AC Connector ( : Alternating current) (AC POWER IN)
* You can skip the Menu items and display an adjustment scale directly.
<Front> <Back>
NOTE
NOTE

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10 BEFORE YOU OPERATE THE MONITOR
CONNECTING YOUR MONITOR : ProLite XB2788QS
Ensure that both the computer and the monitor are switched off .
Connect the computer to the monitor with the signal cable.
Connect the monitor to the audio equipment with the Audio Cable for computer when using the
audio features.
Connect the Power Cable to the monitor fi rst and then to the power supply.
Turn on your monitor and computer.
[Example of Connection]
<Back>
NOTE  The signal cables used for connecting the computer and monitor may vary with the
type of computer used. An incorrect connection may cause serious damage to both
the monitor and the computer. The cable supplied with the monitor is for a standard
connector. If a special cable is required please contact your local iiyama dealer or
regional iiyama offi ce.
 For connection to Macintosh computers, contact your local iiyama dealer or regional
iiyama offi ce for a suitable adaptor.
 Make sure you tighten the fi nger screws at each end of the signal cable.

Excessive sound pressure from ear-/headphones can cause hearing damage/hearing loss.
[ Collect Cables ]
Put the cables through the cable hole.
Collect cables at the back of the stand.
Power Cable (Accessory)
Audio Cable (Not Included)
Computer
DVI-D Cable (Not Included)*
DisplayPort Cable (Accessory)
HDMI Cable (Accessory)
AV Equipment
* DVI dual-link cable is not supplied with the monitor. If you use low quality DVI dual-link cable, it
may cause a result of electro-magnetic interference. Please contact the iiyama Support Centre in
your country if you wish to connect the monitor via the DVI input.

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BEFORE YOU OPERATE THE MONITOR 11
CONNECTING YOUR MONITOR : ProLite X2788QS
Ensure that both the computer and the monitor are switched off .
Connect the computer to the monitor with the signal cable.
Connect the monitor to the audio equipment with the Audio Cable for computer when using the
audio features.
Connect the Power Cable to the monitor fi rst and then to the power supply.
Turn on your monitor and computer.
[Example of Connection]
<Back>
NOTE  The signal cables used for connecting the computer and monitor may vary with the
type of computer used. An incorrect connection may cause serious damage to both
the monitor and the computer. The cable supplied with the monitor is for a standard
connector. If a special cable is required please contact your local iiyama dealer or
regional iiyama offi ce.
 For connection to Macintosh computers, contact your local iiyama dealer or regional
iiyama offi ce for a suitable adaptor.
 Make sure you tighten the fi nger screws at each end of the signal cable.

Excessive sound pressure from ear-/headphones can cause hearing damage/hearing loss.
Power Cable (Accessory)
Audio Cable (Not Included)
Computer
DVI-D Cable (Not Included)*
DisplayPort Cable (Accessory)
HDMI Cable (Accessory)
AV Equipment
* DVI dual-link cable is not supplied with the monitor. If you use low quality DVI dual-link cable, it
may cause a result of electro-magnetic interference. Please contact the iiyama Support Centre in
your country if you wish to connect the monitor via the DVI input.

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12 BEFORE YOU OPERATE THE MONITOR
 Signal Timing
Change to the desired signal timing listed on page 27: COMPLIANT TIMING.
COMPUTER SETTING
ADJUSTING THE HEIGHT AND THE VIEWING ANGLE :
ProLite XB2788QS
 For optimal viewing it is recommended to
position yourself directly opposite to the full face
of the monitor, then adjust the monitor’s height
and angle to your own preference.

Hold the panel so that the monitor does not topple
when you change the monitor’s height or angle.
 You are able to adjust the monitor's height up to
130mm, angle up to 45 degrees right and left, 17
degrees upward.

Do not touch the LCD screen when you
change the height or the angle. It may
cause damage or break the LCD screen.
 Careful attention is required not to
catch your fingers or hands when you
change the height or the angle.
 Injury can occur if care is not taken to
avoid fi nger contact with the displays
base when adjusting the height.
NOTE
Monitor
Stand
45° 45°
130mm

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BEFORE YOU OPERATE THE MONITOR 13
 For optimal viewing it is recommended to look at the full face
of the monitor.
 Hold the stand so that the monitor does not topple when you
change the monitor’s angle.
 You are able to adjust the monitor’s angle up to 20° upward,
3° downward.
 In order to ensure a healthy and relaxed body position
when using the monitor at visual display workstations, it
is recommended that the adjusted tilt angle should not
exceed 10 degrees. Adjust the monitor’s angle to your own
preference.
NOTE  Do not touch the LCD screen when you change
the angle. It may cause damage or break the LCD
screen.
 Careful attention is required not to catch your
fi ngers or hands when you change the angle.
ADJUSTING THE VIEWING ANGLE : ProLite X2788QS
3° 20°

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14 OPERATING THE MONITOR
OPERATING THE MONITOR
To create the best picture, your iiyama LCD monitor has been preset at the factory with the
COMPLIANT TIMING shown on page 27. You are also able to adjust the picture by following the button
operation shown below.

When button operations are aborted during adjustment, On-Screen Display disappears
when the time set for the OSD Time Out has passed. Also, the MENU button can be
used to return previous menu and turn off the On-Screen Display.

Any changes are automatically saved in the memory when the On Screen Display
disappears. Turning off the power should be avoided while using the Menu.
NOTE
Press the MENU Button to start the On Screen Display (OSD) feature. There are
additional Menu items which can be switched by using the / Buttons.
Select the Menu item which contains the adjustment icon relating to the adjustment
you want to make. Press the SELECT Button. Then, use the
/ Buttons to highlight
the desired adjustment icon.
Press the SELECT Button again. Use the / Buttons to make the appropriate
adjustment or setting.
Press the EXIT Button to leave the menu, and the settings you just made would be
automatically saved.
For example, to correct for OSD vertical position, select Menu item of (OSD Settings) and
then press the SELECT Button. Then, select OSD V. Position by using the / Buttons.
An adjustment page appears after you press the SELECT Button. Then, use the / Buttons
to change the vertical position settings. The vertical position should be changing accordingly
while you are doing this.
Press the EXIT Button lastly, it ends, all changes are saved in the memory.
AUTO
HDMI
EXIT : E x i t SELECT : S e l e c t
Audio
Picture
Color
Language
OSD Settings
Input Select DVI
Setup Menu
DisplayPort
EXIT : E x i t SELECT : S e l e c t
Audio
Picture
Color
Language
Input Select
Setup Menu
OSD Background
OSD H. Position
OSD Time Out
EXIT : E x i t
Audio
Picture
Color
Language
Input Select
Setup Menu
50
50
Off
60s
OSD V. Position
SELECT : S e l e c t
OSD Settings
OSD Settings
OSD Background
OSD H. Position
OSD Time Out
50
50
Off
60s
OSD V. Position
OSD V. Position 50

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OPERATING THE MONITOR 15
ADJUSTMENT MENU CONTENTS
Adjustment Item Problem / Option Button to Press
Input Select
Input Select
You can skip the Menu items and display an adjustment scale directly by using the following button
operations.

Input Select: Press the INPUT Button when the Menu is not displayed.
Direct
Direct
However it will automatically be selected when just one source is using.
In Power Management Mode input switching is disabled.
Input source is fi xed, not selected automatically when DVI, HDMI and DisplayPort which
are selected.
AUTO
NOTE
Select the HDMI input. HDMI
Select the DVI input. DVI
Search for an available input source and select
automatically.
Select the DisplayPort input. DisplayPort

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16 OPERATING THE MONITOR
Too dark
Too bright
Brightness *1,2
Too dull
Too intense
*1 Adjust the Brightness when you are using the monitor in a dark room and feel the screen is too
bright.
*2 See page 21 for Disabled function matrix.
Brightness of back-light is reduced.
Off Normal
ECO Mode *2
Adv. Contrast *2Increased Contrast RatioOn
Off Typical Contrast Ratio
Adjustment Item Problem / Option Button to Press
Picture
Contrast *2
1
Brightness of back-light is reduced more than 1.2
Brightness of back-light is reduced more than 2.3
Overdrive *2
Off / -2 / -1 / 0 / +1 / +2
It will improve the gray level response time of the
LCD panel.
A higher level results in a faster response time.
Sharpness
You can change the picture quality from 0 to 100
(soft to sharp).
Press the Button to change the picture quality in
numerical order. Press the Button to change the
picture quality in reverse numerical order.
Adjust the picture quality at resolutions of less
2560 × 1440.
You can change the picture quality.
Blue Light Reducer *2
Off Typical
1Blue light is reduced.
2 Blue light is reduced more than Mode1.
3 Blue light is reduced more than Mode2.
Direct
You can skip the Menu items and display an adjustment scale directly by using the following button operations.

Blue Light Reducer: Pressing and holding of the INPUT Button for about 2 seconds when the
Menu is not displayed.
Direct