Iiyama ProLite Series 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 this comprehensive manual carefully
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speci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di󰀨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. : PL4372UH

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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
INSTALLATION ...............................................................................5
CONTROLS AND CONNECTORS..................................................6
CONTROLS AND CONNECTORS : REMOTE CONTROL.............7
PREPARING THE REMOTE CONTROL.........................................8
BASIC OPERATION........................................................................9
CONNECTING YOUR MONITOR.................................................12
COMPUTER SETTING .................................................................14
ADJUSTING THE VIEWING ANGLE ............................................14
OPERATING THE MONITOR.............................................................15
ADJUSTMENT MENU CONTENTS..............................................16
POWER MANAGEMENT FEATURE.............................................26
TROUBLE SHOOTING ......................................................................27
RECYCLING INFORMATION.............................................................28
APPENDIX ........................................................................................29
SPECIFICATIONS.........................................................................29
DIMENSIONS................................................................................30
COMPLIANT TIMING....................................................................30

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FOR YOUR SAFETY 1
FOR YOUR SAFETY
WARNING
STOP OPERATING THE MONITOR WHEN YOU SENSE TROUBLE
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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
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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reorelectric
shock.
OPERATE UNDER THE SPECIFIED POWER SUPPLY
Besuretooperatethemonitoronlywiththespeciedpowersupply.Useofanincorrectvoltagewill
causemalfunctionandmaycause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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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
re.Toallowadequateaircirculation,placethemonitoratleast10cm(or4inches)fromanywalls.
When removing the tilt stand, the ventilation slots on the back side of the monitor can be blocked.
This may overheat the monitor and may cause fire or damage. Make sure to allow enough
ventilation when removing the tilt stand. 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o󰀨thepowerswitch, unplugthemonitor andbesurethesignal
cableisdisconnected.Ifyoudonotdisconnectthem,itmaycause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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ngersorhandswhenyouchangetheheightortheangle.
Injurycanoccurifcareisnottakentoavoidngercontactwiththemonitorsbasewhenadjusting
theheight.(Justforheightadjustablemodel.)
REMARK FOR 24/7 USAGE
Thisproductisnotspeci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 rst turn on the LCD monitor, the picture may not t in the monitor area
because of the type of computer that is used. In this case, adjust the picture position to
the correct position.

You may find 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o󰀨thePowerSwitch
for some hours.
SPECIAL NOTES ON LCD MONITORS
NOTE 
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 o󰀨 the power switch and unplug the monitor before you
clean it.
NOTE 
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

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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o󰀩ce.
*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.
An approved power cable greater or equal to H05VVF, 3G, 0.75mm² must be used.
Power Cable*
HDMI Cable DisplayPort Cable
USB Cable IR Extender Cable Remote Control

Battery(2pcs) Headphone hook Safety Guide
Quick Start Guide
BEFORE YOU OPERATE THE MONITOR
CHECKING THE CONTENTS OF THE PACKAGE
CAUTION
FEATURES
Supports Resolutions up to 3840 × 2160
High Contrast 1300:1 (Typical), Adv. Contrast Function Available / Brightness
450cd/m2(Typical) / Quick Respons Time 4ms (Gray to Gray)
Flicker - Free
Blue Light Reducer
Digital Character Smoothing
Stereo Speakers
2 × 9W Stereo Speakers
Power Management (VESA DPMS Compliant)
VESA Mounting Standard (200mm×100mm) Compliant
Keyhole for Security Lock

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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(4pcs)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.
WARNING
Screw
Mounting Stage
LChassis
INSTALLATION
< WALL MOUNTING >
WARNING 
Before installation, make sure the wall, ceiling or desktop arm is strong enough to
hold the necessary weight of the monitor and the mount.
< ROTATING THE MONITOR >
It is designed to be compatible in landscape mode.
Landscape
A
Available
Power Indicator
Portrait
A
A
Not Available
A
Power Indicator
Power Indicator

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6 BEFORE YOU OPERATE THE MONITOR
NOTE
NOTE
CONTROLS AND CONNECTORS
<Front> <Back>
Power Indicator
Blue: Normal operation
Orange: Power Management
Navigation button
Menu
ScrollUp( )
Scroll Down
(
)
Left
/ ECO ( )
 Right/BlueLightReducer( )
InputSelect(INPUT)
Volume+(VOL+)
Volume-(VOL-)
PowerSwitch( )
Keyhole for Security Lock
You can fasten a security lock and
cable to prevent the monitor from being
removed without your permission.
MainPowerSwitch((ON)/ (OFF))
ACConnector( :Alternatingcurrent)( )
Headphone hook *
USB Downstream Connector ( USB2.0)
USB Downstream Connector ( USB3.0)
USBUpstreamConnector( )
Speakers
Headphone Connector ( )
IRConnector(REMOTE)
DisplayPortoutputConnector(DPOUT)
DisplayPortConnector(DP1)
DisplayPortConnector(DP2)
HDMIConnector(HDMI1)
HDMIConnector(HDMI2)
* If necessary, install the included Headphone
hook, turn and secure it.

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BEFORE YOU OPERATE THE MONITOR 7
CONTROLS AND CONNECTORS : REMOTE CONTROL
Turns the monitor ON and OFF.
[PLAY] Not available on this model.
SOURCE
Selects the source.
Press or button to select from
DP1, DP2, HDMI1 or HDMI2. Press
[OK]buttontoconrmandexit.
HOME Opens the monitor’s on-screen
menu systems.
LIST Not available on this model.
Navigates through submenus and
settings.
: Up Button
: Down Button
: Left Button
: Right Button
OK Conrmsyourselectionorsave
changes.
ADJUST Not available on this model.
MUTE Turnsonoro󰀨themutefunction
when the Menu is not displayed.
COLOR
Not available on this model.
NUMBER/
ID SET/ENTER Not available on this model.
ID Mode Not available on this model.
FORMAT Open the Video Mode Adjust.
BACK Returns to a previous menu or
closes the OSD Menu.
INFO Provides resolution information.
OPTIONS Not available on this model.
VOLUME - / +
VOLUME-: Decreases the sound
volume.
VOLUME+: Increases the sound
volume.

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8 BEFORE YOU OPERATE THE MONITOR
To use the remote control, insert the two dry batteries.
PREPARING THE REMOTE CONTROL
CAUTION
DonotuseanyotherbatteriesotherthanthosespeciedinthismanualfortheRemoteControl.Do
not insert old and new batteries together in the Remote Control. Make sure that the terminals match
the "+" and "-" indications in the battery compartment. Burst batteries or the electrolyte from these
batteriesmaycausestains,reorinjury.
Press and then slide the battery cover to open it.
Alignand insert twoAAAbatteries according to their plus and minusports(asindicatedin the
remotecontrol).
Replace the battery cover.
NOTE Refer to the above instructions when taking out the batteries.

Replace with new batteries when the Remote Control does not work close to the monitor.
Use AAA dry batteries. Risk of explosion if battery is replaced by an incorrect type.
Operate the Remote Control by pointing it toward the Remote Sensor on the monitor.
Other manufacturers remote control will not work with this monitor. Use the provided
Remote Control ONLY.
Usedbatteriesneededtofollowthelocalrulestobediscarded.(Suggestion:todispose
ofusedbatteriespleasefollowcorrectpolicyasperyourlocalregulations.)
Batteriesshallnotbeexposedtoexcessiveheatsuchassunshine,reorthelike.
Battery x 2

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BEFORE YOU OPERATE THE MONITOR 9
BASIC OPERATION
Turning the monitor ON
The monitor is turned On and the Power Indicator turns to
Blue when you press the POWER button on the remote
control or the monitor. The monitor is turned Off and the
Power Indicator turns to Orange when you press the POWER
button on the remote control or the monitor. Press again to
turn On the monitor.
NOTE
Even when using the power management mode or turning O󰀨
the Power Switch, the monitor will consume a small amount of
electricity. Disconnect the Power Cable from the power supply
whenever the monitor is not in use or during the night, to avoid
unnecessary power consumption.
[Remote Control]
Display the adjustment menu page
The menu page appears on the screen when you press the
HOME button on the remote control or the MENU button
on the monitor.
The menu page disappears when you press the BACK
button on the
remote control again.
[Monitor]
[Remote Control]
[Monitor]

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10 BEFORE YOU OPERATE THE MONITOR
Move the cursor horizontally
Select menu or setting, or perform the adjustment by pressing
the / buttons on the remote control or the / buttons
on the monitor while the menu page is displayed on the
screen.
Move the cursor vertically
Select adjustment by pressing the / buttons on the remote
control or the / buttons on the monitor while the menu
page is displayed on the screen.
[Remote Control]
[Monitor]
[Remote Control]
[Monitor]

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BEFORE YOU OPERATE THE MONITOR 11
Adjust the volume of sound
Press the Vol+ / Vol- buttons on the remote control or the
monitor to adjust the volume of sound when the menu page is
not displayed on the screen.
Switch the input signal
Press the SOURCE button on the remote control or the
INPUT button on the Monitor when the Menu is not displayed,
it shows Signal Select menu.
[Remote Control]
[Monitor]
[Remote Control]
[Monitor]

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12 BEFORE YOU OPERATE THE MONITOR
CONNECTING YOUR MONITOR
Ensurethatboththecomputerandthemonitorareswitchedo󰀨.
Connect the computer to the monitor with the signal cable.
ConnectthePowerCabletothemonitorrstandthentothepowersource.
Turnonyourmonitor(MainPowerSwitchandPowerSwitch)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o󰀩ce.
For connection to Macintosh computers, contact your local iiyama dealer or regional
iiyamao󰀩ceforasuitableadaptor.
Makesureyoutightenthengerscrewsateachendofthesignalcable.
The Class I pluggable equipment Type A must be connected to protective earth.
The socket-outlet shall be installed near the equipment and shall be easily accessible.

Excessive sound pressure from ear-/headphones can cause hearing damage/hearing loss.
GAME
Equipment
etc.
Power Cable (Accessory)
Mouse Keyboard
USB Cable (Accessory)
IR Extender Cable (Accessory)
Computer
HDMI Cable (Not Included)
HDMI Cable (Accessory)
AV Equipment etc.
Displayport Cable (Accessory)
Displayport Cable
(Not Included)
Notebook

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BEFORE YOU OPERATE THE MONITOR 13
[ About the daisy chain ]
Digital video connection
DisplayPort
PC
[DP IN]
[DP]
]TUOPD[
MONITOR1 MONITOR2
[DP IN] ]NIPD[]TUOPD[
MONITOR3 MONITOR4
]TUOPD[ [DP IN]
Connection conditions
NOTE
Resolution / Refresh rate Maximum screen number
1920x1080 60Hz /
1920x1200 60Hz 4
3840 x 2160 30Hz 2
3840 x 2160 60Hz 1
<Clone mode>
ConnectthecomputertorstmonitorwithDisplayPortcable.
ConnecttherstmonitortosecondmonitorwithDisplayPortcable.   
(Youcanconnecttotalfourmonitors)
Turn on the monitors and the computer.
SomeVideoorGraphicscardcannotsupportDisplayPortmultidisplay(DisplayPortMST).
Make sure your system supports DisplayPort MST.
<Extend mode>
ConnectthecomputertorstmonitorwithDisplayPortcable.
ConnecttherstmonitortosecondmonitorwithDisplayPortcable.   
(Youcanconnecttotalfourmonitors)
Turn on the monitors and the computer.
Open OSD menu and change “DP Daisy Chain” to “Ext.” for all monitors.
NOTE

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14 BEFORE YOU OPERATE THE MONITOR
Signal Timing
Change to the desired signal timing listed on page 30: COMPLIANT TIMING.
COMPUTER SETTING
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 8° upward, 1°
downward.
ADJUSTING THE VIEWING ANGLE
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 pinch your
ngersor hands intothemoving part of thestand
when you change the angle.
1° 8°

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OPERATING THE MONITOR 15
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 30. You are also able to adjust the picture by following the
button operation shown below.
Press the button on the remote control or the MENU button on the monitor to
start the On Screen Display feature. There are additional Menu items which can be
switched by using the / buttons on the remote control or the / buttons on
the monitor.
Select the Menu item which contains the adjustment icon relating to the adjustment
you want to make. Press the OK button on the remote control or the MENU button
on the monitor. Then, use the / buttons on the remote control or the /
buttons on the monitor to highlight the desired adjustment icon.
Press the OK button on the remote control or the MENU button on the monitor
again. Use the / buttons on the remote control or the / buttons on the
monitor to make the appropriate adjustment or setting.
Press the OK button on the remote control or the MENU button on the monitor and
press the button on the remote control or the button on the monitor to leave
the menu, and the settings you just made would be automatically saved.

When button operations are aborted during adjustment, On-Screen Display disappears when the
time set for the Timeout has passed. Also, the button on the remote control or the button on
themonitorcanbeusedtoreturnpreviousmenuandturno󰀨theOn-ScreenDisplay.

Any changes are automatically saved in the memory when the On Screen Display
disappears.
Turningo󰀨thepowershouldbeavoidedwhileusingtheMenu.
NOTE
For example, to correct for OSD vertical position, select Menu item of OSD Settings and then press
the OK button on the remote control or the MENU button on the monitor. Then, select OSD Vertical
Position by using the / buttons on the remote control or the / buttons on the monitor.
An adjustment page appears after you press the OK button on the remote control or the MENU
button on the monitor
. Then, use the / buttons on the remote control or the / buttons
on the monitor to change the OSD vertical position settings. The OSD vertical position of the
overall display should be changing accordingly while you are doing this.
Press the OK button on the remote control or the MENU button on the monitor and press the
button on the remote control or the button on the monitor lastly, it ends, all changes are saved
in the memory.
PICTURE ADJUST
IMAGE SETTINGS
COLOR SETTINGS
EXTRA
SIGNAL SELECT
AUDIO SETTINGS
OSD SETTINGS
ProLite X4372UHSU
PIP/PBP
OSD SETTINGS
OSD HORIZONTAL POSITION
OSD TIME
LANGUAGE ENGLISH
OSD VERTICAL POSITION

ENGLISH
16 OPERATING THE MONITOR
ADJUSTMENT MENU CONTENTS
Adjustment Item Problem / Option Button to Press
Picture Adjust
Too dark
Too bright
Brightness *1,2
Contrast *2Too dull
Too intense
*1
Adjust the Brightness when you are using the monitor in a dark room and feel the screen is too bright.
*2Adjustable / settable items depend on which item is activated. See page 25 Function Correlation
Matrix for more details.
*3When OverDrive is activated, some level of image retention will be caused.
PICTURE ADJUST
IMAGE SETTINGS
COLOR SETTINGS
EXTRA
SIGNAL SELECT
AUDIO SETTINGS
OSD SETTINGS
ProLite X4372UHSU
BRIGHTNESS
CONTRAST
ECO
BLUE LIGHT REDUCER
ADV. CONTRAST
OVERDRIVE
OFF
OFF
OFF
ON OFF
0
PIP/PBP
BLACK TUNER
Mode1 Brightness of back-light is reduced.
Mode2 Brightness of back-light is reduced more than Mode1.
O󰀨 Normal
Eco *2
Mode3 Brightness of back-light is reduced more than Mode2.
Adv. Contrast *2Increased Contrast Ratio
On
O󰀨 Typical Contrast Ratio
Adv. Contrast adjusts brightness according to the image, and improve the contrast ratio
during movie playing.
NOTE
Direct
Mode1
Mode2
O󰀨 Normal
Blue Light Reducer *2
Mode3
Direct
OverDrive *3
O󰀨/-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.
Black Tuner *2From -5 to +5
You can adjust Dark shades.
Blue light is reduced.
Blue light is reduced more than 1.
Blue light is reduced more than 2.