NEC X462UNV User manual

NEC Display Solutions of America, Inc.
Aspects to consider when constructing NEC video walls
Planning
Source—Determination of how the video wall is going to be used and what’s going to drive the wall
needs to carefully thought out.
oWhat usage is this wall going to be used for? Is a computer going to drive it? A BluRay
player? Both at separate times?
Signal—Is this going to be a digital or analog signal? Is there any conversion involved?
Wiring—How will the signal get distributed to the wall?
oIn order to utilize NEC’s TileMatrix software, every display needs to be receiving the same
signal. It’s easiest if this is done utilizing the same source as well.
oIs this a direct connection or are other factors involved here (extenders, converters, amplifiers,
etc) Example of Daisy Chain
Example of Distribution Amplifier

Displays—What displays are ideal for this situation?
oHigher ambient lighting would cause for higher brightness screens
NEC offers both commercial brightness and professional brightness screens depending
on what’s necessary
oAre ultra-narrow bezel units necessary?
NEC offers displays with active area to active area distances as low as 5.5mm
Ventilation/Cooling—Make sure that the wall is receiving proper ventilation behind the units.
oAll NEC V, P and X series displays have temperature sensors built into the units.
There are three sensors total, aligning themselves with 2 internal fans
These sensors are used to measure the temperatures within certain hotter parts of the
display.
Once a sensor hits its ‘trip’ point, it triggers fans to turn on and stay on until the
temperature is under a certain threshold.
oAs a rule of thumb, if an increase of 10º C is seen when a unit is installed compared to a
single stationary unit, extra active cooling needs to be added.
Power—Make sure that there’s enough power planned into the design for all video wall components.
Receiving
When the units are first received, be sure to notate any boxing damage
oIf damage is present, be sure to take pictures of the shipping damage
Always inspect the units when first receiving them.
oNote that the mechanical integrity of the product is not compromised.
oBe sure to plug the product in, make sure the unit turns on
Be sure to hit the ‘hard power’ switch on the back to do this
Notate any cracks or scratches on the front glass
oTake pictures of any damage or defect
Contact your distributor with any DOA or damaged goods claims to start the MRA processing
Installing
If this is going on a wall, make sure that it’s able to support to support the extra weight associated with
the screens and mounts.
oBuilding engineers should be able to help here. It’s almost always a good idea to support the
wall to hold the extra weight.
If using an adjustable mounting bracket, it’s always a good idea to ‘zero’ out the adjustment range before
installing individual monitors
oThis makes fine-tuning and adjustment easier when the displays start going up

Be sure to have at least two people per screen when mounting them on the wall or stand
oNEC displays have support handles that are built specifically for the handling of these fragile
units. Be sure to utilize the support handles when carrying the product.
oDo not grip or carry the display directly by the bezel, this can cause unnecessary strain on the
edges of the panel itself and could possibly crack the glass
If it’s necessary to set the product down, do so in the ‘face-up’ position on a cleared, padded surface.
oNever set any of the Ultra-Narrow bezel screens on their sides or on their corners, this could
damage the structure of the panel.
NEC recommends that a business card is able to slip between all displays on all sides during the
installation process.
oDue to thermal expansion, screens can slightly expand. Allowing extra space initially will
help in avoiding unnecessary strain on the bezel.
TileMatrix Setup
Each NEC V, P and X series screen has TileMatrix
technology built into each screen. In order to utilize
TileMatrix, each screen needs to receive the same
signal. oTileMatrix will allow a 1080p signal to
stretch across the entirety of the wall up
to 10 x 10 units

Navigate the OSD menu to the Multi-DSP tab to setup TileMatrix on each individual screen.
Calibration
Calibration is key! Using NEC’s KT-LFD-CC Display
Wall Calibrator kit, color temperatures and brightness
intensity of individual screens in the wall are able to
match up, giving you uniform colors across the entirety
of the wall.
oCustom white points, intensities, black levels
and contrast ratios can be obtained.
Depending on the runtime and environment with the particular wall, calibration should be done every
6 months or when desired.
Before Calibration After Calibration