Mitsubishi D2010, LDT551V User Manual

54.6" LCD Display Monito

r

MODEL

Index

Features ................................................................................................................................................................................... English-2

Important Information .............................................................................................................................................................. English-3

Declaration ............................................................................................................................................................................... English-5

Safety Precautions, Maintenance & Recommended Use ....................................................................................................... English-6

Contents ................................................................................................................................................................................... English-7

Parts Name and Functions ....................................................................................................................................................... English-8

Buttons, Switch, and Indicator .................................................................................................................................. English-8

Connectors and Terminals ........................................................................................................................................ English-9

Wireless Remote Control .......................................................................................................................................... English-10

How to Use the Wireless Remote Control ................................................................................................................ English-11

Preparation for use .................................................................................................................................................................. English-12

Flow of preparation ...................................................................................................................................................English-12

[P-1] Preparation for installation ............................................................................................................................................ English-13

Determine the installation location ............................................................................................................................ English-13

Ventilation requirements for enclosure mounting ..................................................................................................... English-13

[P-2] Installing the monitor ..................................................................................................................................................... English-14

Installing and removing the stands ........................................................................................................................... English-14

Using the wall mount or ceiling mount ...................................................................................................................... English-14

Installing in the portrait position ................................................................................................................................English-15

[P-3] Installing the optional speakers .................................................................................................................................... English-16

[P-4] Connection procedure .................................................................................................................................................. English-17

Wiring diagram .......................................................................................................................................................... English-17

Prevention of disconnection of HDMI cable ............................................................................................................. English-17

Connecting with a computer (analog connection) .................................................................................................... English-18

Connecting with a computer (digital connection) .....................................................................................................English-19

Connecting a video device (component video/HDMI device) .................................................................................. English-20

Connecting a video device (composite video/S video device)/stereo amplifi er ......................................................English-21

[P-5] Installing the optional module ....................................................................................................................................... English-22

Installation of the optional module ............................................................................................................................English-22

CAT5 for long-distance connection or multiple-monitor connection ........................................................................ English-22

[P-6] Connecting RS-232C .................................................................................................................................................... English-24

Monitor control via RS-232C ..................................................................................................................................... English-24

[P-7] Connecting LAN ............................................................................................................................................................ English-25

Monitor connection using LAN ................................................................................................................................. English-25

[P-8] Connecting a USB device ............................................................................................................................................. English-26

Connecting multiple USB devices using the USB hub function .............................................................................. English-26

[P-9] Connecting the power cord to the monitor .................................................................................................................. English-27

Connecting the power source ...................................................................................................................................English-27

How to Use ............................................................................................................................................................................... English-28

Flow of How to Using ................................................................................................................................................English-28

[U-1] Turning on all the connected devices ........................................................................................................................... English-29

Turning on external devices ......................................................................................................................................English-29

Turning on the monitor .............................................................................................................................................. English-29

Power Management Function ................................................................................................................................... English-29

[U-2] Selecting the video input .............................................................................................................................................. English-30

[U-3] Controlling the external devices ...................................................................................................................................English-31

[U-4] Selecting the OSD language ......................................................................................................................................... English-31

[U-5] Auto-setup .................................................................................................................................................................... English-32

[U-6] Selecting the picture mode ........................................................................................................................................... English-32

[U-7] Screen adjustment ........................................................................................................................................................ English-33

[U-8] Picture adjustment ........................................................................................................................................................ English-33

[U-9] Setting the speakers ...................................................................................................................................................... English-34

[U-10] Volume control ..............................................................................................................................................................English-34

[U-11] Schedule setting ........................................................................................................................................................... English-35

How to set up schedule ............................................................................................................................................. English-36

[U-12] Remote control .............................................................................................................................................................. English-37

RS-232C/RS-485 Remote control ............................................................................................................................ English-37

LAN Remote control .................................................................................................................................................. English-39

Confi guration and basic operation of OSD screen ................................................................................................................. English-40

Confi guration of OSD screen .................................................................................................................................... English-40

Basic operation of OSD ............................................................................................................................................. English-41

OSD screen functions .............................................................................................................................................................. English-42

Other functions ........................................................................................................................................................................ English-52

Picture size ................................................................................................................................................................ English-52

Picture mode .............................................................................................................................................................English-52

Audio input change ...................................................................................................................................................English-52

OSD information ........................................................................................................................................................ English-52

Control Lock mode .................................................................................................................................................... English-52

PIP, POP function ......................................................................................................................................................English-53

Remote control numbering function ......................................................................................................................... English-54

Troubleshooting .......................................................................................................................................................................English-55

Specifi cations ..........................................................................................................................................................................English-56

Pin Assignment ........................................................................................................................................................................ English-57

English

English-1

Features

High-quality LCD panel which provides a wide variety of
contents and messages clearly

Full HD panel

The LDT551V panel reproduces images from video and
computer signals with precision and clarity, delivering full
1920 x 1080 high-defi nition resolution. The high-durability
panel reduces the risk of image persistence in commercial
applications.

Enhanced Display Functionality for Various Commercial
Use/

Support for System Confi guration Suitable for

Diversifi ed Applications

Digital Zoom

Zoom mode for expanding 4:3 image to 16:9.
Various zoom modes are provided and it is possible to expand
4:3 aspect ratio images to 16:9. In addition, you can select the
dynamic display mode to display naturally widened images
with different zooming rates around the screen center and
screen edges. You can also optimally change the image size
diagonally, horizontally, and vertically.

Tiling Capability with Frame compensation

Up to 25 panels (5 wide x 5 high) can be combined to create
a single large image (i.e., video wall) or other high-impact
signage. A frame compensation function is incorporated to
compensate the width of panel bezels so that images are
displayed with the utmost accuracy.

PiP, PoP and Side-by-side

Picture-in-Picture and Picture-out-of-Picture are available when
you want to display video content from a video input source
in the sub picture and display the PC input source in the main
picture, and vice versa.
The native resolution as high as 1920 x 1080 can display
these two input sources in the Side-by-side mode, ideal for
broadcasting and video-conferencing applications.

Equipped with CAT5 Analog Signal Transmission Function/
Supports Max. 150-meter Cable

CAT5 Video Connection (option)

Transmitting analog video signal and control signal over a
single CAT5 cable.
You can transmit analog RGB video signal and display control
signal over a single CAT5 cable up to 150 meters at the
maximum. Furthermore, you can connect up to 4 monitors in a
daisy-chain confi guration using CAT5 cable (max. 200 meters).

Pages 10, 46, and 53

Page 56

Page 44

Page 50

Page 22

Power-on Delay Page 51

For installations employing numerous monitors, the power­on delay function can power up the monitors sequentially with
delay between 2-50 seconds after the power is applied. Using
this function can prevent inrush current problems and reduce
the overall electrical load requirements when a single power
supply is used.

Others

DisplayPort

DisplayPort-compliant terminal is provided.
The monitor is equipped with a terminal supporting DisplayPort,
the digital interface standard. You can transmit video signals
over a single cable of max. 15 meters long.

Built-in Speakers

Speakers inside the display unit create stereo sounds and used
to communicate voice messages. External special optional
speakers can be connected, so that the built-in and external
speakers can be switched for use.

Remote Control

Special wireless remote control supports major operations and
settings.
The special wireless remote control is supplied for major
controls such as power-on/off, video source switching, and
various settings.

Closed Caption

You can display captions.
When closed-caption video signals are input, you can select to
display or hide the captions on the screen.
This monitor is compliant with EIA-608-A.

USB hub function

Multiple USB devices can be connected to the computer.
The monitor is equipped with the USB hub having four self­powered downstream ports, where the USB devices can be
connected.

Pages 9 and 19

Pages 8, 16, and 34

Pages 10 and 11

Page 51

Pages 9 and 26

Variable Management Functions Supporting Effi cient
Operation and Management

Programmable Scheduling Function

The monitor’s operating schedule can be programmed for
up to seven different scheduled time intervals by time, day
of the week and input port. This allows video content from
different inputs to be displayed on certain monitors within the
same installation according to the schedule, and extends the
monitor’s life and saves the power by turning it off during those
hours or days it is not in use.

Screen-saver Functions

To reduce image persistence and maximize the panel life in
demanding signage applications, this product is equipped with
four screen-saver functions.

• GAMMA

• COOLING FAN

• BRIGHTNESS

• MOTION

Pages 35, 36, and 49

Page 47

English-2

Important Information

DECLARATION OF CONFORMITY

This device complies with Part 15 of 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.

U.S. Responsible Party: Mitsubishi Digital Electronics America, Inc.

Address: 9351 Jeronimo Road,

Irvine, California 92618 U.S.A.

Tel. No.: +1 - [phone]

Type of Product: Computer Monitor
Equipment Classifi cation: Class B Peripheral
Model: LDT551V (D2010)

We hereby declare that the equipment specifi ed above

conforms to the technical standards as specifi ed in the FCC Rules.

Windows is a registered trademark of Microsoft Corporation.
HDMI, the HDMI logo, and High-Defi nition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing
LLC in the United States and other countries.
The DisplayPort Icon is a trademark of the Video Electronics Standards Association, registered in the U.S. and other
countries.
All other brands and product names are trademarks or registered trademarks of their respective owners.

English

Canadian Department of Communications Compliance Statement

DOC: This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CAN/CSA C22.2

No. 60950-1.

FCC Information

1. Use the attached specifi ed cables with this equipment so as not to interfere with radio and television reception.
(1) The power supply cord you use must have been approved by and comply with the safety standards of U.S.A.,
(2) Please use the supplied shielded video signal cable. Use of other cables and adapters may cause interference with radio and

television reception.

2.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult your dealer or an experienced radio/TV technician for help.

3.

You are cautioned that changes or modifi cations not expressly approved by the party responsible for compliance could void
your authority to operate the equipment.

English-3

Important Information (continued)

WARNING

TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. ALSO, DO NOT USE THIS UNIT’S
POLARIZED PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS THE PRONGS CAN BE FULLY INSERTED.

REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE COMPONENTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

CAUTION

CAUTION:

TO REDUCE THE RISK OF ELECTRIC SHOCK, MAKE SURE POWER CORD IS UNPLUGGED FROM WALL SOCKET. TO
FULLY DISENGAGE THE POWER TO THE UNIT, PLEASE DISCONNECT THE POWER CORD FROM THE AC OUTLET. DO
NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.

This symbol warns user that uninsulated voltage within the unit may have suffi cient magnitude to cause electric shock.
Therefore, it is dangerous to make any kind of contact with any part inside this unit.

This symbol alerts the user that important literature concerning the operation and maintenance of this unit has been
included. Therefore, it should be read carefully in order to avoid any problems.

CAUTION

This LCD Monitor uses a lamp that contains mercury. Disposal of the lamp or the LCD Monitor with the lamp may be
regulated due to environmental considerations. For disposal or recycling information, please contact your local authorities or
the Electronic Industries Alliance: www.eiae.org. (For US only).

English-4

Declaration

Declaration of the Manufacturer

We hereby certify that the color monitor LDT551V (D2010)
is in compliance with
Council Directive 2006/95/EC:
— EN 60950-1
Council Directive 2004/108/EC:
— EN 55022
— EN 61000-3-2
— EN 61000-3-3
— EN 55024

Warning

This is a Class A product. In a domestic environment this product may cause radio interference, in which case the
user may be required to take adequate measures.

and marked with

Mitsubishi Electric Corporation

2-7-3, Marunouchi,

Chiyoda-Ku

Tokyo 100-8310, Japan

Declaration of the Manufacturer

Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2002/96/EC Article 10 Information for users and
Annex IV, and/or to the directive 2006/66/EC Article 20 Information for end-users and Annex II.

Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and
components which can be recycled and/or reused.
This symbol means that electrical and electronic equipment, batteries and accumulators, at their end-of-life,
should be disposed of separately from your household waste.
If a chemical symbol is printed beneath the symbol shown above, this chemical symbol means that the
battery or accumulator contains a heavy metal at a certain concentration. This will be indicated as follows:
Hg: mercury (0,0005%), Cd: cadmium (0,002%), Pb: lead (0,004%)
In the European Union there are separate collection systems for used electrical and electronic products,
batteries and accumulators.
Please, dispose of this equipment, batteries and accumulators correctly at your local community waste
collection/recycling centre.
Please, help us to conserve the environment we live in!

English

English-5

Safety Precautions, Maintenance & Recommended Use

FOR OPTIMUM PERFORMANCE, PLEASE NOTE

THE FOLLOWING WHEN SETTING UP AND USING

THE LCD COLOR MONITOR:

• DO NOT REMOVE MONITOR BACK COVER. There are
no user serviceable parts inside and opening or removing
covers may expose you to dangerous shock hazards or
other risks.

Refer all servicing to qualifi ed service personnel.

• Do not spill any liquids into the cabinet or use your monitor
near water.

• Do not insert objects of any kind into the cabinet slots,
as they may touch dangerous voltage points, which can
be harmful or fatal or may cause electric shock, fi re or
equipment failure.

• Do not place any heavy objects on the power cord.

Damage to the cord may cause shock or fi re.

• Do not place this product on a sloping or unstable cart,
stand or table, as the monitor may fall, causing serious
damage to the monitor.

• When operating the LCD monitor with its AC 100-120 V
power supply in North America, use a power supply cord
provided with the monitor.

If a power cord is not supplied with this monitor, please

contact your supplier.

• When operating the LCD monitor with its AC 220-240 V
power supply in Europe, use a power supply cord provided
with the monitor.

If a power cord is not supplied with this monitor, please

contact your supplier.

• In UK, use a BS-approved power cord with molded plug
having a black (10 A) fuse installed for use with this monitor.

• When operating the LCD Monitor with a 220-240 V AC
power supply in Australia, use the power cord provided with
the monitor.

If a power cord is not supplied with this equipment, please

contact your supplier.

• For all other cases, use a power cord that matches the AC
voltage of the power outlet and has been approved by and
complies with the safety standard of your particular country.

• Do not place any objects onto the monitor and do not use
the monitor outdoors.

• The inside of the fl uorescent tube located within the LCD
monitor contains mercury. Please follow the bylaws or rules
of your municipality to dispose of the tube properly.

• Do not bend power cord.

• Do not use monitor in high temperature, humid, dusty, or
oily areas.

• If monitor or glass is broken, do not come in contact with
the liquid crystal and handle with care.

• If the LCD monitor is damaged and the liquid crystal leaks
out, do not inhale or swallow it.

• Allow adequate ventilation around the monitor, so that heat
can properly dissipate. Do not block ventilated openings or
place the monitor near a radiator or other heat sources.

Do not put anything on top of the monitor.

• The power cable connector is the primary means of
detaching the system from the power supply. The monitor
should be installed close to a power outlet, which is easily
accessible.

• Handle with care when transporting. Save packaging for
transporting.

• Please clean the holes of back cabinet to reject dirt and
dust at least once a year because of set reliability.

• If using the cooling fan continuously, it’s recommended to
wipe holes a minimum of once a month.

• When installing the remote control batteries;

- Align the batteries according to the (+) and (-) indications

inside the case.

- Align the (-) indication of the batteries fi rst inside the

case.

CAUTION:

Immediately unplug your monitor from the wall outlet and refer
servicing to qualifi ed service personnel under the following
conditions:

• When the power supply cord or plug is damaged.

• If liquid has been spilled, or objects have fallen into the
monitor.

• If the monitor has been exposed to rain or water.

• If the monitor has been dropped or the cabinet damaged.

• If the monitor does not operate normally by following
operating instructions.

Recommend Use

CAUTION:

• For optimum performance, allow 20 minutes for warm-up.

• Rest your eyes periodically by focusing on an object at least
5 feet away. Blink often.

• Position the monitor at a 90° angle to windows and other
light sources to minimize glare and refl ections.

• Clean the LCD monitor surface with a lint-free, non-abrasive
cloth. Avoid using any cleaning solution or glass cleaner!

• Adjust the monitor’s brightness, contrast, and sharpness
controls to enhance readability.

• Avoid displaying fi xed patterns on the monitor for long
periods of time to avoid image persistence (after image
effects).

• Get regular eye checkups.

Ergonomics

To realize the maximum ergonomic benefi ts, we recommend
the following:

• Use the preset Size and Position controls with standard
signals.

• Use the preset Color Setting.

• Use non-interlaced signals.

• Do not use primary color blue on a dark background, as
it is diffi cult to see and may produce eye fatigue due to
insuffi cient contrast.

English-6

Contents

Your LCD monitor (LDT551V) comes with the following:

LCD Monitor



54.6" LCD Display Monitor

MODEL

User’s Manual



Video Signal Cable



(Mini D-SUB 15-pin to

Mini D-SUB 15-pin Cable)

English

Clamper x 2



(To prevent from falling)

* The supplied power cord varies depending on destination.

Power Cord



For EU

* For the use in the other regions, use a power cord that

matches the AC voltage of the power outlet and has been
approved by and complies with the safety standard of those
regions or countries.

Screw for Clamper



(M4) x 2

Power Cord



For North America

Clamper x 2



(For preventing disconnection of
the power cord and HDMI cable)

Clamper x 3



(For securing the cables)

Wireless Remote



Control and AAA

Batteries

The following components are supplied as option.

• External Speakers

• Stands

• CAT5 Tx BOX

• CAT5 Rx BOX

English-7

Parts Name and Functions

Buttons, Switch, and Indicator

Front

Control buttons

Main Power Switch

1

Switches the main power on/off.

Remote control sensor and Power indicator

2

Remote control sensor: Receives the signal from the wireless

remote control.

Power indicator: Indicates the state of the LCD monitor.

• Steady green: The power is on.

• Steady red: The power is off.
Some operations such as power-on

are possible.

• Steady green and red: The LCD monitor is in the sleep
mode.

• Off: The main power is off.

• Steady red and blinking green: The LCD monitor is in the

schedule standby mode.

• Blinking red: The LCD monitor has an error
(detected by the self-diagnostic
function).

POWER button ( )

3

Switches the power on/off.
This button doesn’t work when the power indicator is off. Turn
on the main power. (See page 29.)

MUTE button

4

Switches the audio mute on/off.

INPUT button

5

Displays the OSD menu to switch the video input.
You can select [RGB1], [RGB2], [RGB3], [RGB4], [OPTION]*,
[RGB6], [DVD/HD], [VIDEO<S>], or [VIDEO] using the UP (
DOWN (
* OPTION can be used when an optional module is mounted

) button.

on the option slot.

) or

Rear

ON
OFF

PLUS (+) button

6

Acts as (+) button to increase the adjustment in the OSD menu.
Increases the audio output level when the OSD menu is off.

MINUS (-) button

7

Acts as (-) button to decrease the adjustment in the OSD menu.
Decreases the audio output level when the OSD menu is off.

UP ( ) button

8

Acts as button to move the highlighted area up to select an
adjustment item in the OSD menu.

DOWN ( ) button

9

Acts as button to move the highlighted area down to select
an adjustment item in the OSD menu.

10

EXIT button

Activates the OSD menu when the OSD menu is off.
Acts as EXIT button to go back to the previous OSD menu.

11

Speakers

Audio sound is output from the built-in speakers.

(Reference) Control Lock mode

You can lock the operation buttons. See page 52.

NOTE:

For details about the OSD menu operation using the buttons, see “Basic operation of OSD.” (See page 41.)

English-8

Parts Name and Functions (continued)

Connectors and Terminals

Rear Left side

LAN

RS-232C

IN

OUT

L

R

AUDIO

IN3 IN1IN2OUT

L

R

L

R

SPEAKER (S)

R (8) L (8)

OUT

VIDEO

IN

BHV

VIDEO IN

Cr/PrRYGCb/Pb

S VIDEO INRGB4 / DVD/HD IN

B

Cb/Pb

R

Cr/Pr

Anti-theft lock slot

You can insert a
Kensington anti-theft
lock key.

Main Power Switch

AC IN

DVI-D D-SUB D-SUB

RGB6 IN RGB1 IN RGB2 IN RGB3 IN

RGB OUT

English

OUT

IN

IN

HVG

Y

OUT

L

R

IN

IN

AC IN (3-pin, with earth terminal)

1

Connects with the supplied power cord.

USB hub

2

USB upstream port (Standard B): 1
To be connected to the host device such as a computer.
USB downstream port (Standard A): 4
To be connected to peripheral devices such as touch panel.

RGB6 IN (DisplayPort)

3

Connects with the digital video output of a computer, etc.

RGB1 IN (HDMI)

4

Connects with the digital video output of a computer, DVD
player, etc.

RGB2 IN (DVI-D)

5

Connects with the digital video output of a computer, etc.

RGB3 IN (MINI D-SUB 15-pin)

6

Connects with the analog video output of a computer, etc.

RGB OUT (MINI D-SUB 15-pin)

7

Outputs the signal that is supplied to the RGB3, RGB4 or
OPTION IN connector. The input to OPTION functions only
when the CAT5 Rx BOX is mounted.

RGB4 IN, DVD/HD IN (BNC)

8

Connects with the analog video output of a computer or the
component video output of a DVD player, etc.

VIDEO INPUT/OUTPUT (BNC/S connector)

9

Connects with video equipment.
S VIDEO IN: S-video input connector (MINI DIN 4-pin)
VIDEO IN: BNC connector, RCA connector
VIDEO OUT: BNC connector

NOTE:

The video input connectors (BNC, RCA) cannot be used at the
same time. Use either BNC connector or RCA connector.

10

EXTERNAL SPEAKER TERMINAL

Connects with the special stereo speakers (option).

11

AUDIO OUT (RCA)

Outputs the signal that is supplied to the selected AUDIO IN
connector. Connects with an external audio amplifi er, etc.

12

AUDIO IN

Connects with the audio output connector of external
equipment such as a computer, VCR, and DVD player.
(a) AUDIO1: ø3.5 stereo mini-jack connector
(b) AUDIO2: RCA connector
(c) AUDIO3: RCA connector

13

RS-232C connector (D-SUB 9-pin)

IN connector:
Connects with the RS-232C OUT connector of a computer or
other connected LDT551V.
OUT connector:
Connects with the RS-232C IN connector of other connected
LDT551V.

14

LAN connector

Connects with a LAN cord.

15

Option slot

A slot to mount an optional module such as the CAT5 video
connection function.

CAUTION:

Do not mount any module that is not compatible with the
monitor. Otherwise, the monitor does not function properly, or
both the monitor and module have a breakdown.

English-9

7

Parts Name and Functions (continued)

Wireless Remote Control

AUDIO INPUT buttons

8

Select the audio input from [AUDIO1], [AUDIO2], [AUDIO3],
[HDMI], and [OPTION]*. However, note that [VIDEO<S>] and
[VIDEO] use common settings. You can select [HDMI] only
when the video input source is [RGB1].
* OPTION can be used when an optional module is mounted

on the option slot.

PIP (Picture-in-Picture) buttons

9

ON/OFF button: Switches the PIP or POP mode on/off.
INPUT button: Selects video to be displayed in the sub

CHANGE button: Changes the main picture with the sub

[Description]

PIP: Picture-in-Picture

The sub picture is displayed within the main picture.

POP: Picture-out-Picture

The sub picture is displayed to the bottom right of the main
picture.

SIDE BY SIDE

The main picture and the sub picture are displayed side by

POWER button

1

Switches the power on/off.
* When the Power indicator is not glowing, no controls will

work.

INPUT buttons

2

Select the input signal from [RGB1] (HDMI), [RGB2] (DVI-D),
[RGB3] (D-SUB), [RGB4] (BNC), [OPTION]*, [RGB6] (DISPLAY
PORT), [DVD/HD] (YPbPr), [VIDEO<S>], and [VIDEO].
* OPTION can be used when an optional module is mounted

on the option slot.

PICTURE MODE button

3

Selects the picture mode from [HIGHBRIGHT], [STANDARD],
[sRGB], and [CINEMA]. See page 32.
HIGHBRIGHT: The brightness is maximized.
STANDARD: Factory default setting.
sRGB: Suitable for color matching with sRGB-

compliant devices.

CINEMA: Suitable for viewing movies.

DISPLAY button

4

Displays the screen information. See page 52. When the remote
control mode is LOCK, you can set it back to NORMAL by
holding down the DISPLAY button for at least 5 seconds (see
page 50).

SET button

5

Accepts the settings made in the OSD menu.

MINUS button (-)

6

Acts as (-) button to decrease the adjustment in the OSD menu.
When the PIP mode is active, this button moves the sub picture
to the left.

AUTO SETUP button

Displays the auto setup menu. See pages 32 and 47.

side.

NOTE:

When the screen size is [CUSTOM] or [REAL], the PIP and POP
modes don’t work.

10

STILL button

ON/OFF button: Switches the still picture mode on/off.
CAPTURE button: Captures the new picture.

11

SIZE button

Selects the picture size from [FULL], [NORMAL], [CUSTOM],
[DYNAMIC], and [REAL]. See page 52.

12

MENU button

Switches the OSD menu mode on/off.

13

UP button ( )

Acts as button to move the highlighted area up to select
an adjustment item in the OSD menu. When the PIP mode is
active, this button moves the sub picture up.

14

PLUS button (+)

Acts as (+) button to increase the adjustment in the OSD menu.
When the PIP mode is active, this button moves the sub picture
to the right.

15

EXIT button

Displays the previous OSD menu.

16

DOWN button ( )

Acts as button to move the highlighted area down to select
an adjustment item in the OSD menu. When the PIP mode is
active, this button moves the sub picture down.

17

MUTE button

Switches the mute function on/off.

18

VOLUME buttons (VOL)

Pressing the plus (+) side increases the audio output level.
Pressing the minus (-) side decreases the audio output level.

picture.

picture.

English-10

Parts Name and Functions (continued)

How to Use the Wireless Remote Control

Operating Range of the Wireless Remote

Control

Point the wireless remote control toward the LCD monitor’s
remote control sensor during button operation.
Use the wireless remote control within a distance of about 7 m
from the front of the LCD monitor’s remote control sensor and
at a horizontal and vertical angle of within 30° within a distance
of about 3.5 m.

CAUTION:

The remote control system may not function when direct
sunlight or strong illumination strikes the remote control sensor
of the LCD monitor, or when there is an object in the path.

Installing and removing the Wireless

remote control batteries

The wireless remote control is powered by 1.5 V AAA batteries.

How to install the batteries

1. Unlock and pull up the cover in the arrow’s direction.

2. Align the batteries according to the (+) and (-) indications
inside the case.

3. Replace the cover.

How to remove the batteries

1. Unlock and pull up the cover in the arrow’s direction.

2. Remove the batteries.

CAUTION:

Incorrect use of batteries can result in leaks or explosion.
Be careful especially about the following points.

• Place “AAA” batteries matching the (+) and (-) signs on each
battery to the (+) and (-) signs of battery compartment.

• Do not mix battery types.

• Do not combine new batteries with used ones. It causes
shorter battery life or leakage of batteries.

• Remove dead batteries immediately to prevent battery
liquid from leaking into the battery compartment. Don’t
touch exposed battery acid because it causes damage to
your skin.

English

Handling the wireless remote control

* Do not subject to strong shock.
* Do not allow water or other liquid to splash on the wireless

remote control. If the wireless remote control gets wet, wipe

it dry immediately.
* Avoid exposure to heat and steam.
* Other than to install the batteries, do not open the wireless

remote control.

NOTE:

If you do not use the wireless remote control for a long period,
remove the batteries.

English-11

Preparation for use

Flow of preparation

P-1

P-4

Preparation for installation

- Determine the installation location

- Ventilation requirements for enclosure mounting

Carry out as necessary

P-2

P-3

Connection procedure

- Wiring diagram

- Prevention of disconnection of HDMI cable

- Connecting with a computer (analog connection)

- Connecting with a computer (digital connection)

- Connecting a video device (component video/HDMI device)

- Connecting a video device (composite video/S video device)/stereo amplifi er

Installing the monitor

- Installing and removing the stands (The stands are optionally available.)

- Using the wall mount or ceiling mount

- Installing in the portrait position

Carry out as necessary

Installing the optional speakers

Carry out as necessary

Page 13

Pages 14 to 15

Page 16

Pages 17 to 21

P-5

P-6

P-7

P-8

P-9

The monitor is ready for use.

Connecting the power cord to the monitor

- Connecting the power source

Installing the optional module

- Installation of the optional module

- CAT5 for long-distance connection or multiple-monitor connection

Carry out as necessary

Connecting RS-232C

- Monitor control via RS-232C

Carry out as necessary

Connecting LAN

- Monitor connection using LAN

Carry out as necessary

Connecting a USB device

- Connecting multiple USB device using the USB hub function

How to Use

Page 28

Pages 22 to 23

Page 24

Page 25

Page 26

Page 27

English-12

P-1 Preparation for installation

Install the monitor on a fl at, level, stable surface where the
screen is easy to view.

(For installation using the option stand.)

Determine the installation location

CAUTION:

DO NOT ATTEMPT TO INSTALL THE LCD MONITOR BY
YOURSELF.
Installing your LCD monitor must be done by a qualifi ed
technician. Contact your dealer for more information.

CAUTION:

MOVING OR INSTALLING THE LCD MONITOR MUST BE
DONE BY TWO OR MORE PEOPLE.
Failure to follow this caution may result in injury if the LCD
monitor falls.

CAUTION:

Do not mount or operate the monitor upside down, face up, or
face down.

IMPORTANT:

Lay the protective sheet, which was wrapped around the LCD
monitor when it was packaged, beneath the LCD monitor so as
not to scratch the panel.

CAUTION:

Don’t block the holes in the rear of the monitor shown in the
fi gure above. If they are blocked, heat accumulates inside the
monitor, causing breakdown. The upper limit of the operation­guaranteed ambient temperature when the monitor is installed
in the landscape position is 40˚C. When installing the monitor
in a case or an enclosure, ensure adequate ventilation to keep
the temperature inside the case 40˚C or lower by providing
a cooling fan or ventilation holes in the case. The upper limit
when the monitor is in the portrait position is 35˚C.
This LCD has a temperature sensor and cooling fan. If the LCD
becomes hot, the cooling fan will turn on automatically. If the
LCD becomes overheated, the “Caution” menu will appear.
If the “Caution” menu appears, stop using the monitor and
allow it to cool. When the LCD monitor is used in an enclosure
or with protection on LCD surface, please check the inside
temperature of the monitor by “HEAT STATUS” (See page 51). If
the temperature is higher than the normal level, set “COOLING
FAN” to ON using the SCREEN SAVER function (See page 47).

To avoid the monitor from falling

When installing the monitor using the tabletop stands (optional),
take measures to prevent the monitor from falling over in case
of an earthquake or other disaster to lessen the probability of
injury and damage resulting from the fall.
As shown in the fi gure, secure the monitor to a solid wall or
pillar using rope (commercially available) strong enough to bear
the weight of the monitor. [LDT551V: approximately 41.5 kg (with
the optional stands)]
Use of screw hooks (with opening) is recommended.

450 mm

Screw holes

Screw hook, etc.
commercially available

English

Ventilation requirements for enclosure mounting

To allow heat to disperse, leave space around the monitor as
shown in the fi gure below.

Don’t block these holes.

Rope, etc.
commercially available

Clamper

CAUTION:

• The effect of the fall prevention substantially depends
on the strength of brackets and base to which the fall
prevention devices is attached. When you cannot ensure
suffi cient strength, provide adequate reinforcement.

• Though the recommended fall prevention is intended to
lessen the probability of injury and damage, it doesn’t
assure its effectiveness against any kind of earthquake or
disaster.

• Do not sleep where the monitor may topple over or fall in
case of an earthquake or other disaster.

• Before moving the monitor, remove the rope that is
securing the monitor. Failure to do so may result in injury or
breakdown of the monitor.

Screw

English-13

P-2 Installing the monitor

Carry out as necessary

Installing and removing the stands

The stands are available as option.
Refer to the user’s manual of the stand for more information.

Screw x 4
(Accessories of
the option stand)

Cover x 2

Option stand x 2

(Longer portion comes to the front.)

How to install the stands

1. Turn the monitor off.

2. Fasten screws on both sides of the monitor.

NOTE:

Install the stands so that their longer portions come to the front.

How to remove the stands

1. Spread the protective sheet on a fl at surface, such as a
desk.

2. Place the monitor on the protective sheet.

3. Remove the screws with a screwdriver and place them in a
safe place for reuse.

Using the wall mount or ceiling mount

Lay the screen face down

Lay the protective sheet on a table, which was wrapped around
the monitor when it was packaged, beneath the screen surface
so as not to scratch the screen surface.
This device cannot be used or installed without the Tabletop
Stand or other mounting accessory. Failure to follow the correct
mounting procedures can result in damage to the equipment or
injury to the user or installer. Product warranty does not cover
damage caused by improper installation.
Failure to follow these recommendations can void your
warranty.
Use M8 screws (having a length 15 mm longer than the
thickness of the mounting bracket) and tighten them securely.
Prevent the screws from loosening using spring washers, etc.
MITSUBISHI ELECTRIC recommends using mounting interface
that comply with TÜV-GS and UL1678 standard in North
America.

649.5 649.5
200 200

Handles

385385

200200

Tab le

CAUTION:

For preventing the monitor from falling.

• Install the monitor with metal brackets for wall or
ceiling installation (commercially available) on your own
responsibility. For detailed procedures of installation, refer
to the instructions of the metal brackets.

• To lessen the probability of injury and damage resulting
from fall of the monitor in case of earthquake or other
disaster, be sure to consult the bracket manufacturer for
installation location.

• To lessen the risk of falling of the monitor, thread
commercially available rope through the handles at the
right and left of the monitor and secure the rope to the wall
mount brackets or ceiling mount brackets.

• Do not sleep where the monitor may topple over or fall in
case of an earthquake or other disaster.

• Use screws having enough strength to support the LCD
display monitor (made of stainless steel etc.).

Protective Sheet

(mm)

English-14

P-2 Installing the monitor (continued)

Installing in the portrait position

Conditions:

LDT551V can be installed in the portrait position, under the
following conditions:

CAUTION:

Portrait position is available only when the monitor is wall­mounted or ceiling-mounted.
The stands (legs) can not be fi tted to the monitor in the portrait
position.
Placing the monitor in the portrait position will shorten the
average life of the LCD backlight.
Operation Environment (Temperature) shall be limited, as
shown below:

Operation Environment:

Temperature 5 - 35°C / 41 - 95°F
Humidity 20 - 80% (without condensation)

Place the monitor in the position shown below.
Do not place the monitor in landscape in any other manner than
shown.
Optional speakers can not be attached when the LCD monitor
is installed in the portrait position.

Carry out as necessary

English

How to set-up

The “
viewed from the front of the monitor.

” logo should be on the RIGHT side when

Landscape

90° Counterclockwise

Portrait

Portrait

logo

English-15

P-3

Before connecting the signal cable to PC and Video

• Optional speakers can be installed.

• Please refer to Quick Setup Guide of the optional speakers for the detailed installation procedure.

How to install the optional speakers

1. Use the metal fi ttings and screws supplied with the optional speakers.
For the installation procedure, see the setup guide of the speakers.

2. Insert the left speaker cable into the SPEAKER (S) terminal (L) on the monitor, and insert the right speaker cable into the
SPEAKER (S) terminal (R).

NOTE:

Match the polarity of the speaker cables and that of the terminals (+ (red)/- (black)).
Unmatched polarity may cause problems with audio output.

Installing the optional speakers

Carry out as necessary

Left speakerRight speaker

Red(+)/Black(-)Red(+)/Black(-)

To speaker terminal (L) To speaker terminal (R)

SPEAKER (S)(R)

Red(+)

Black(-)

NOTE:

Switch the built-in speaker mode to the optional speaker mode after you power on the monitor.
See the page for How to Use (on page 28) for further details.

CAUTION:

Do not move the monitor with the speakers installed.
The monitor and the speakers may be damaged and you may be injured if the monitor falls.

SPEAKER (S)(L)

Red(+)

Black(-)

English-16

P-4 Connection procedure

Before making connections

• First turn off the power of all the connected equipment before making connections.

• Refer to the user manual of each piece of equipment.

NOTE:

Please use the audio cable without resistance when the audio output terminal of the audio device and PC is stereo mini-Jack.
When the audio cable with resistance is used, the audio level may not be increased or no audio may be output.

Wiring diagram

LCD monitor (front)

Personal computer
(DVI-D, HDMI, DisplayPort)

LCD monitor (fi rst monitor)

English

Stereo amplifi er

DVD player or HD disk

player (HDMI, BNC)

LCD monitor (second monitor)

Personal

computer

(Analog RGB)

VCR (RCA)

External speakers

Prevention of disconnection of HDMI cable

When you connect the HDMI cable to the connector on the monitor, in order to prevent accidental disconnection of the cable, you
are recommended to secure it using the supplied clamper as shown in the fi gure.

Clamper

English-17

Clamper