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Mitsubishi LDT551V - User Manual

Mitsubishi LDT551V
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English-1
English
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
Con guration and basic operation of OSD screen ................................................................................................................. English-40
Con 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
Index

Table of Contents

Questions and Answers

  • J
    Joshua LevyAug 17, 2025
    What to do if Mitsubishi LDT551V has no picture?
    • A
      Ashley OrrAug 17, 2025
      If your Mitsubishi LCD TV shows no picture, ensure the signal cable is securely connected to the display card/computer and that the display card is properly seated. Also, check that both the Main Power Switch and the computer power switch are ON. Verify the correct mode is selected on the display card or system. Confirm compatibility and recommended settings between the monitor and display card. Finally, inspect the signal cable connectors for any bent or pushed-in pins.
  • S
    Samantha SimmonsAug 20, 2025
    Why is the LED on my Mitsubishi LCD TV not lit?
    • R
      Richard McclureAug 20, 2025
      If the LED on your Mitsubishi LCD TV isn't lit (no green or red color), first, make sure the power switch is in the ON position and the power cord is connected. Secondly, ensure that the computer is not in power-saving mode.
  • J
    Jon GonzalesAug 23, 2025
    What to do if Mitsubishi LCD TV image is unstable?
    • W
      Wendy Thomas DDSAug 23, 2025
      If the image on your Mitsubishi LCD TV is unstable, unfocused, or swimming is apparent, ensure the signal cable is securely attached to the computer. Use the OSD Image Adjust controls to focus and adjust the display by increasing or decreasing the fine adjustment. Check the monitor and your display card with respect to the compatibility and recommended signal timings. If the displayed text is garbled, change the video mode to the non-interlace mode and use 60 Hz refresh rate.
  • M
    Michael WernerAug 26, 2025
    What to do if Mitsubishi LDT551V LCD TV power button does not respond?
    • D
      Dr. Jamie GarciaAug 26, 2025
      If the power button on your Mitsubishi LCD TV doesn't respond, unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.
  • J
    Judy SanchezAug 28, 2025
    Why Mitsubishi LCD TV has no sound?
    • B
      Bradley WatsonAug 28, 2025
      If your Mitsubishi LCD TV has no sound, check if the speaker cable is properly connected. Also, verify that the mute function is not activated and that the volume is not set to the minimum level.
  • S
    Stephen DavisAug 31, 2025
    What to do if Mitsubishi LCD TV displayed image is not sized properly?
    • D
      Deborah StricklandAug 31, 2025
      If the displayed image on your Mitsubishi LCD TV is not sized properly, use the OSD Image Adjust controls to increase or decrease the coarse adjustment. Also, make sure that the correct mode has been selected on the display card or system being used.
  • B
    Bailey AllenSep 3, 2025
    Why image of component signal is greenish on Mitsubishi LDT551V?
    • H
      hguerreroSep 3, 2025
      If the image of a component signal appears greenish on your Mitsubishi LCD TV, check to see if the DVD/HD input connector is selected.
  • W
    William MoraSep 5, 2025
    How to fix image persistence on Mitsubishi LCD TV?
    • S
      Sarah BlackwellSep 5, 2025
      To alleviate image persistence on your Mitsubishi LCD TV, turn off the monitor for as long as the previous image was displayed.
  • A
    Ashley WilliamsSep 8, 2025
    Why is the wireless remote control not available for Mitsubishi LDT551V?
    • I
      Ian SimmonsSep 8, 2025
      If the wireless remote control is not working with your Mitsubishi LCD TV, check the batteries' status and ensure they are inserted correctly. Additionally, make sure the remote is pointing at the monitor's remote sensor.
  • R
    Robin EdwardsSep 12, 2025
    What to do if Mitsubishi LDT551V LCD TV selected resolution is not displayed properly?
    • S
      Sharon HarrisSep 12, 2025
      If the selected resolution is not displayed properly on your Mitsubishi LCD TV, use the OSD Display Mode to enter the Information menu and check that the appropriate resolution has been selected.

Summary

Important Information and Declarations

Safety Warnings and Precautions

Contains critical warnings, cautions, recommended use, and ergonomic advice for safe operation.

Safety Precautions, Maintenance, and Recommended Use

Key Safety and Handling Instructions

Essential guidelines for safe operation, including avoiding disassembly, liquid spills, and proper handling.

Parts Name and Functions Overview

Monitor Controls and Indicators

Identification of buttons, switches, power indicator, and OSD navigation controls on the monitor.

P-1 Preparation for Installation

Monitor Stability and Fall Prevention Measures

Instructions and cautions for securing the monitor to prevent it from falling.

P-4 Connection Procedure (Continued)

Analog Computer Connection and Audio Setup

Connects PC via VGA/BNC and sets up audio for analog inputs.

Digital Computer Connection and Audio Setup

Connects PC via HDMI, DVI-D, DisplayPort and sets up digital audio.

Component and HDMI Video Device Connection

Connects DVD/HD players using component or HDMI interfaces.

Composite, S-Video, and Stereo Amplifier Connection

Connects composite, S-Video devices and stereo amplifiers.

P-8 Connecting a USB Device

USB Hub Functionality for Multiple Devices

Details on connecting and utilizing the monitor's USB hub for multiple devices.

P-9 Connecting the Power Cord to the Monitor

Power Source Connection

Instructions for connecting the power cord to the monitor and power outlet.

U-1 Turning On All Connected Devices

Powering On External Devices and Monitor

Steps for turning on connected devices and the monitor itself.

U-2 Selecting the Video Input

Input Selection Methods

Describes selecting video input via the remote control or the monitor's INPUT button.

U-11 Schedule Setting

How to Set Up a Schedule

Detailed steps for programming power-on/off times and input selection.

U-12 Remote Control (Continued)

Read Commands and LAN Remote Control

Covers status reading commands and setting up network remote control.

Configuration and Basic Operation of OSD Screen

OSD Menu Navigation Basics

Details how to navigate through OSD menus using remote or monitor buttons.

OSD Screen Functions (Continued)

Off Timer and Schedule Settings

Sets automatic power-off times and programs monitor operation schedules.

OSD Screen Functions (Continued)

OSD Screen Menu: PIP

Details items within the PIP menu.

PIP Mode, Size, Audio, and Position Settings

Covers PIP mode selection, size, audio, and screen position adjustments.

OSD Screen Functions (Continued)

Picture Mode and PIP;POP Functionality

Selects picture modes and enables/configures PIP and POP features.

Other Functions (Continued)

PIP, POP, and Side-by-Side Functionality

Detailed explanation of PIP, POP, and Side-by-Side modes and their input compatibility.

Remote Control Numbering Function

Guides for controlling multiple monitors with one remote controller via RS-232C.

Troubleshooting Common Issues

Common Display Issues

Addresses problems like no picture, image persistence, unstable display, and color issues.

Schedule and Timer Function Issues

Resolves problems with the schedule and off timer functions not working as expected.

Mitsubishi LDT551V Specifications

General IconGeneral
Screen Size55 inches
Display TypeLCD
USB Ports1
Aspect Ratio16:9
Brightness450 cd/m²
Contrast Ratio4000:1
Viewing Angle178°
Response Time6 ms
Resolution1920 x 1080
Audio Output10W + 10W
Input PortsComponent, Composite
Weight22.5 kg (49.6 lbs)

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