DS2 DynaScan DS421LT4 User manual

User Manual
Version 2.01
The use of diagrams and illustrations in the manual are for reference only. The actual product may be different.
Product design and specifications are subject to change without notice
Professional LCDs

DS421LT4 User Manual 1
Contents
Material Contents Declaration................................................................................................................2
Recycling and Energy Information .........................................................................................................2
Declaration of Conformity....................................................................................................................... 3
Safety Precautions .................................................................................................................................4
Safety Precautions .................................................................................................................................4
Important Safety Information.................................................................................................................. 5
Getting Started .......................................................................................................................................6
Contents .............................................................................................................................................6
Installing and Replacing Remote Control Batteries............................................................................ 6
Installation...............................................................................................................................................7
Mounting.............................................................................................................................................7
Wall Mounting...................................................................................................................................10
Connecting to a Power Source.........................................................................................................10
Connecting an External Video Source .............................................................................................10
Connecting Multiple Displays for Video Wall Applications...............................................................11
Connector Positions .........................................................................................................................13
Input / Output Terminals...................................................................................................................14
Operating Instructions ..........................................................................................................................15
Powering On/Off the Display............................................................................................................15
Using the Remote Control................................................................................................................15
Using the Rear Panel Controls.........................................................................................................18
Navigating the On Screen Display (OSD) Menu..................................................................................19
Converting from Dynamic to Static IP ..............................................................................................24
Specifications .......................................................................................................................................25
Input Mode............................................................................................................................................26
Pin Assignments...................................................................................................................................27
Digital RGB Output (DVI-D): DVI......................................................................................................27
Digital RGB Input (DVI-D): DVI ........................................................................................................27
RS-232 Output..................................................................................................................................28
RS-232 Input ....................................................................................................................................28
Troubleshooting....................................................................................................................................29
Network User Interface.........................................................................................................................30

DS421LT4 User Manual 2
Material Contents Declaration
Part Name
Hazardous Substances
Lead Mercury Cadmium
Hexavalent
Chromium
Polybrominated
Biphenyls
Po
lybromodiphenyl
Ethers
Pb
Hg
Cd
Cr
6+
PBB
PBDE
PCBA
O O O O O O
CHASSIS
O O O O O O
ACCESSORY
O O O O O O
PACKAGE
O O O O O O
“O” indicates that the level of the specified chemical substance is less than the threshold level
specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
“
” indicates that the level of the specified chemical substance exceeds the threshold level specified
in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
Recycling and Energy Information
DynaScan is firmly committed to its environmental protection efforts and we believe that reducing our
products’ impact on the environment is of the utmost importance. We are dedicated to meet the
latest environmental protection regulations.
Energy usage
Mode
Energy
C
onsump
tion
Normal Max. 275 W
Standby < 1 W
Disposal
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
Contact your local government for information regarding the collection systems available. If electrical
appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater
and get into the food chain, damaging your health and well-being. When replacing old appliances
with new one, the retailer is legally obligated to take back your old appliances for disposal at least for
free of charge.

DS421LT4 User Manual 3
Declaration of Conformity
FCC Verification
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC Information
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
Declaration of the Manufacturer
We hereby certify that the Professional LCD DS421LT4 is in compliance
with
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004 /108 /EC
IEC 60950-1:2005 (2nd Edition) +Am1:2009
EN 60950-1:2006+A11:2009+Am1:2010+A12:2011
EN 55022:2010+AC:2011 Class A ITE
EN 61000-3-2:2006+A1:2009+A2:2009
EN 61000-3-3:2008
EN 55024:2010
EN 61000-4-2:2009
EN 61000-4-3:2006+A1:2008+A2:2010
EN 61000-4-4:2012
EN 61000-4-5:2006
EN 61000-4-6:2009
EN 61000-4-8 :2010
EN 61000-4-11:2004
DynaScan Technology,
Inc.

DS421LT4 User Manual 4
Safety Precautions
CAUTION
Do not install the display in a wet environment or place anything filled with liquid
such as a vase or beverage on top of it.
Do not install the display near flammable objects such as gasoline or other
volatile liquids.
Do not install the display near any heat sources such as radiators or other
heating devices.
Do not install the display in the dusty environment.
Do not damage the power cord or plug.
Do not disassemble the screen to avoid electric shock.
The product can normally be operated at an altitude under 2000m. Abnormalities
may occur when installing the device at an altitude above 2000m.
WARNING
The heat sink behind the screen may be hot after extensive use. Do not touch it
to avoid being burned.
Do not touch the screen panel with sharp objects or extreme pressure to avoid
damaging the panel.
The display should be installed in well-ventilated place, do not install it in a
confined space.
Do not drop or allow any objects to fall on the screen.
Do not touch the screen with wet hands to avoid electric shock.
Unplug the power cord before cleaning the device. Use a soft and dry cloth to
wipe the screen off. Do not use alcohol or other chemical liquids.
If you smell smoke or hear strange noises, immediately unplug the monitor and
contact the vendor.
Do not discard this product with general household waste. Be sure to comply with
the local waste regulations for disposal.
Suitable for mounting on concrete and non-combustible surface only.
Please pay attention to the ground wire in a sensible and professional manner.
Keep ground wire connected to prevent electrical shock.
IMAGE BURN
-
IN WARNING
When a stationary or fixed image is displayed on the screen for a long time, the
image may be permanently imprinted on the screen. This phenomenon is
known as image burn-in and is not covered by the manufacturer's warranty.
In order to avoid burn-in, avoid prolonged display of static or fixed images on the
screen.

DS421LT4 User Manual 5
Important Safety Information
•Disassembling the LCD is strictly prohibited. Opening the cover may expose the user to electric
shock or other hazards. Please contact DynaScan certified service professionals for all
maintenance requirements.
•Do not allow any liquid to enter the LCD. Also avoid placing the LCD close to water sources.
•Do not place heavy objects on the power cord. A damaged power cord might cause electric
shock or fire.
•Do not bend, twist, or damage the power cord.
•The power cord must comply with the local safety regulations.
•Do not damage or modify the prongs/pins and the ground contact on the power cord plug.
•Do not place the LCD on an unleveled surface or an unstable vehicle. The LCD could fall over
and cause substantial damage.
•Do not cover the vents and/or the heat sink.
•Do not install the LCD beside radiators or other heat sources. The installation site should have
sufficient ventilation so the heat generated by the LCD can be dissipated.
•Do not use the Signage in a hot, humid, dusty, or fumy environment.
•Handle the LCD with care. Save the packaging materials for transport later.
•Clean the LCD backside at least once a month for dust and other particles.
Unplug the LCD immediately and contact a DynaScan certified service professional as soon as
possible when any of the following situations occurs:
•Damaged power cord or power plug.
•If liquid or foreign object has entered the LCD.
•If the LCD has been exposed to rain or water.
•If the LCD has been dropped or the casing has become damaged.
•If any structural damage such as cracks or unnatural vibration is found.
•If the LCD cannot be operated following the steps outlined in this manual.
•If the LCD emits smoke or other odors, or generates strange noises.
Operating Suggestions
•Avoid displaying a stationary image for a long period of time in order to prevent image sticking.
Cleaning the Panel
•Use a soft, lint-free cloth to gently wipe the dust off from the screen panel.
•Do not use any hard material to wipe the panel.
•Do not poke the panel with your hand or any sharp object (such as a pen or a nail) or exert
excessive pressure on the panel to prevent any damage.
•Do not use any cleaning solutions on the panel as it might cause discoloration.
Cleaning the Casing
•Unplug the power cord.
•Gently wipe the casing with a soft cloth.
Attention
•Do not use any of the following solutions to clean the casing as they may damage the paint and
cause it to crack or peel: benzene solution, alkaline solution, alcohol-based cleaning solution,
glass cleaner, wax, polisher, or detergent.

DS421LT4 User Manual 6
Getting Started
Contents
Confirm that the accessories below are shipped along with the display. If any item is missing, please
contact your dealer. The color and shape of the accessories may vary with the products.
•DS421LT4 Professional LCD.
•Remote Control x 1 pc.
•Batteries (1.5V / AAA) x2 pcs.
•Quick Start Guide x1 pc.
•Power cable x1 pc.
•RS-232 cable x1 pc.
•DVI cable x1 pc.
•Ethernet crossover cable x1 pc.
Attention: Please use the following table to check whether the included power cord is suitable for your
region. If the power cord does not match your region, please contact your local supplier. Please
use matching AC socket in order to meet your local safety regulations.
Plug Type North America
European
Continental Japan Taiwan
Plug
Shape
Region U.S.A. / Canada
EU
(Except U.K.) Japan Taiwan
Voltage
120V 230V 100V 110V
Installing and Replacing Remote Control Batteries
1. Open the battery compartment cover.
2. Insert 2 new AAA batteries.
3. Close the battery compartment cover.
Warning:
•Incorrect usage of batteries may cause leakage or explosion.
•Pay attention to the polarity when installing the batteries.
•Do not mix different types of batteries or new and used batteries. Doing so may shorten the
battery life or cause leakage.
•Remove or replace the batteries when they are empty in order to prevent acid leaking in the
battery compartment.
•Do not touch the leaked substance from the batteries in case of a battery leakage. Doing so
may hurt human skin.
Note: If the remote control is not going to be used for a long time, we recommend removing the
batteries from the remote control.

DS421LT4 User Manual 7
Installation
The LCD must be properly installed using a wall mount. Incorrect installation may cause injury or
damage the equipment. Product warranty does not cover the damage caused by improper
installation and DynaScan shall not be held responsible in such incident. Refer to the mount
manufacturer’s instructions for proper installation.
Mounting
•Hanging the Professional LCD from the ceiling or mounting it on the wall is the responsibility of
the user. Not all ceilings or walls provide enough strength to support the LCD. The LCD may
drop and cause serious injury if it is hanging from the ceiling with insufficient support or is
mounted on a slanted wall. Product warranty does not cover improper installation, modification,
or damage caused by natural disasters. DynaScan recommends having certified professionals
to evaluate the installation site and perform the mounting operation.
•Do not to cover the vent and/or the heat sink in order to ensure proper heat dissipation.
•Refer to the installation guide provided by the manufacturer for proper mounting.
When mounting on a wall or hanging from a ceiling
•A wall mount is not included in the accessory. Please purchase a VESA Standard wall mount to
secure the LCD. DynaScan is not responsible for the damage caused by using non-standard
wall mounts.
•Verify that the mounting location can support the weight of the LCD before installation.
•The installation angle must be within 15 degrees of the vertical axis.
•Do not install the wall mount while the power is turned on as it may cause serious injury due to
electrical shock.
Model Number VESA (mm)
Screw
Specification
Screw Length Number
DS421LT4 (A * B) 200 * 400 M6
Greater than 10mm
Smaller than 12mm
(not including wall
mount thickness)
4

DS421LT4 User Manual 8
DS421LT4
Orientation
•When used in the portrait orientation, the LCD should be rotated clockwise when looking at the
front of the display such that the left edge becomes the top edge.
Portrait mode: Rotate the set clockwise 90° (mandatory)
Installation Location
•The wall and mount must have enough strength to support the LCD and its accessories.
•Do not install in a location with strong vibrations or is dusty.
•Do not install near the building’s main electric panel.
•Ensure the LCD is secured in such a manner that it cannot be easily removed by the general
public.
•Leave clearance around the outer edge of the LCD (or video wall matrix) from other objects to
ensure proper ventilation.
•For installations with screens inset into the wall, refer to section: Enclosures for cooling and
ventilation considerations.
A
B
Unit: mm

DS421LT4 User Manual 9
Single display
Video wall
When hanging from a ceiling
•Ensure that the ceiling is strong enough to support the LCD and it accessories. Earthquake,
unexpected vibration and other external forces should be taken into consideration when
evaluating the ceiling strength.
•The LCD should be secured to the building’s structural frame such as a beam rather than light
steel frame or interior decoration.
•Do not use wood screws or dry wall anchors for installation.
Maintenance
•Inspect the fasteners regularly for signs of loosening or deformation. Please perform
appropriate corrective measures when a problem is identified. Neglecting the problem may
worsen the situation.
•Increase the inspection frequency on areas where previous maintenance had occurred to ensure
the problems do not occur again.