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LDM231-251 Introduction: Difference between revisions

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   <div class="grid-item">[[LDM231-251_On-Screen_Display_Menu|On-Screen Display Menu]]</div>
   <div class="grid-item">[[LDM231-251_On-Screen_Display_Menu|On-Screen Display Menu]]</div>
   <div class="grid-item">[[LDM231-251_Pre-installed_Applications|Pre-installed Applications]]</div>
   <div class="grid-item">[[LDM231-251_Pre-installed_Applications|Pre-installed Applications]]</div>
  <div class="grid-item">[[LDM231-251_RS-232_Protocol|RS-232 Protocol]]</div>
   <div class="grid-item">[[LDM231-251_Specifications|Specifications]]</div>
   <div class="grid-item">[[LDM231-251_Specifications|Specifications]]</div>
   <div class="grid-item">[[LDM231-251_Regulatory_and_Service_Information|Regulatory and Service Information]]</div>
   <div class="grid-item">[[LDM231-251_Regulatory_and_Service_Information|Regulatory and Service Information]]</div>
  <div class="grid-item"><span class="newwin">[[LDM_RS-232_Protocol|'''RS-232 Protocol''']]</span></div>
   <div class="grid-item"><span class="newwin">[[Direct_View_LED_Display_Safety_Precautions|'''Safety Precautions''']]</span></div>
   <div class="grid-item"><span class="newwin">[[Direct_View_LED_Display_Safety_Precautions|'''Safety Precautions''']]</span></div>
   <div class="grid-item"><span class="newwin">[[Direct_View_LED_Display_Troubleshooting|'''Troubleshooting''']]</span></div>
   <div class="grid-item"><span class="newwin">[[Direct_View_LED_Display_Troubleshooting|'''Troubleshooting''']]</span></div>
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</div>
</div>
</div>
</div>
{{Top}} </noinclude>
</noinclude>
=Package Contents=
{{Note|
:*This product is packed in a wooden crate.
:*Due to the size and weight, it is recommended that two or more people handle it.
:*You can identify the contents inside the case by the product labels on it.
}}


=Package Contents=
<gallery caption="Standard Installation (the System Control Box installed Under the Cabinets)">
<gallery caption="Standard Installation (the System Control Box installed Under the Cabinets)">
LDM231-251 IG.png |Installation Guide
LDM231-251 IG.png | <div style="font-style:normal; text-align:center;">Installation Guide</div>
LDM231-251 Cabinets.svg | 8 x Cabinet Sections<br>
LDM231-251 Cabinets.svg | <div style="font-style:normal; text-align:center;"> 8 x Cabinet Sections<br></div>
LDS135-151_LED_Module.svg |296 x LED Modules<ref>The quantity of spare LED modules varies by country.</ref>
LDS135-151_LED_Module.svg | <div style="font-style:normal; text-align:center;">296 x LED Modules<ref>The quantity of spare LED modules varies by country.</ref></div>
LDM231-251 Screen Bezels Sides.svg |Screen Bezels<br>5 x Left & 5 x Right
LDM231-251 Screen Bezels Sides.svg | <div style="font-style:normal; text-align:center;">Screen Bezels,<br>5 x Left & 5 x Right<br> 2 x Bottom</div>
LDM231-251 SCB.svg |System Control Box
LDM231-251 SCB.svg | <div style="font-style:normal; text-align:center;">System Control Box</div>
LDM231-251 Connector Plate.svg |1 x System Control Box Connector Plate
LDM231-251 Connector Plate.svg | <div style="font-style:normal; text-align:center;">1 x System Control Box Connector Plate</div>
LD-MK-004.svg |Maintenance Tool<br>P/N:LD-MK-004
LD-MK-004.svg | <div style="font-style:normal; text-align:center;">Maintenance Tool<br>(P/N:LD-MK-004)</div>
LDM231-251 Wall Mount Brackets STD.svg |Wall Mount Brackets<br> 8 x 1199 mm
LD-MK-006.svg| <div style="font-style:normal; text-align:center;">Suction Tool<br>(P/N: LD-MK-006)</div>
LDM231-251 Wall Mount Connector Plate.svg |6 x Wall Mount Connector Plates
LDM231-251 Wall Mount Brackets STD.svg | <div style="font-style:normal; text-align:center;">Wall Mount Brackets,<br> 8 x 1199 mm</div>
LDM231-251 Nuts and Bolts.svg |Nuts and Bolts
LDM231-251 Wall Mount Connector Plate.svg | <div style="font-style:normal; text-align:center;">6 x Wall Mount Connector Plates</div>
LDM231-251 Hand Tools.svg |Hand Tools
LDM231-251 Nuts and Bolts.svg | <div style="font-style:normal; text-align:center;">Nuts and Bolts</div>
LDS135-151_Gloves.svg|2 x Anti-Static Gloves
LDM231-251 Hand Tools.svg | <div style="font-style:normal; text-align:center;">Hand Tools</div>
LDP216-251_Power_Cord.svg|2 x Power Cords<ref>Power consumption is large, so two power cords and two dedicated power outlets are required.</ref>
LDS135-151_Gloves.svg| <div style="font-style:normal; text-align:center;">2 x Anti-Static Gloves</div>
LDM 231-251 Remote Control.svg |1 x Romote Control<br>With two AAA batteries
LDP216-251_Power_Cord.svg| <div style="font-style:normal; text-align:center;">2 x Power Cords<ref>Power consumption is large, so two power cords and two dedicated power outlets are required.</ref></div>
LDP216-121_IR_Cable.svg|1 x IR Extension Cable
LDM 231-251 Remote Control.svg | <div style="font-style:normal; text-align:center;">1 x Romote Control<br>With two AAA batteries</div>
M2_Dongle.png| 1 x USB Thumb Drive
LDP216-121_IR_Cable.svg| <div style="font-style:normal; text-align:center;">1 x IR Extension Cable</div>
M2_Dongle.png| <div style="font-style:normal; text-align:center;"> 1 x USB Thumb Drive</div>
</gallery>
</gallery>


<gallery caption="Hidden Installation (the System Control Box installed Behind the Cabinets)">
<gallery caption="Hidden Installation (the System Control Box installed Behind the Cabinets)">
LDM231-251 Screen Bezels Bottom.svg |Screen Bezels<br> 6 x Bottom
LDM231-251 Screen Bezels Bottom.svg | <div style="font-style:normal; text-align:center;">Screen Bezels,<br> 6 x Bottom</div>
LDM231-251 Wall Mount Brackets Hidden.svg |Wall Mount Brackets<br>6 x 1335 mm
LDM231-251 Wall Mount Brackets Hidden.svg | <div style="font-style:normal; text-align:center;">Wall Mount Brackets,<br>6 x 1335 mm</div>
LDM231-251 Upper SCB Mount Brackets.svg |2 x Upper System Control Box Mount Brackets
LDM231-251 Upper SCB Mount Brackets.svg | <div style="font-style:normal; text-align:center;">2 x Upper System Control Box Mount Brackets</div>
LDM231-251 Lower SCB Mount Brackets.svg |2 x Lower System Control Box Mount Brackets
LDM231-251 Lower SCB Mount Brackets.svg | <div style="font-style:normal; text-align:center;">2 x Lower System Control Box Mount Brackets</div>
LDM231-251 Cable Zip Ties.svg |24 x Cable Zip Ties
LDM231-251 Cable Zip Ties.svg | <div style="font-style:normal; text-align:center;">24 x Cable Zip Ties</div>
LDM231-251 Power Cables Hidden.svg |Power Cables<br>2 x One-to-Three<br>1 x One-to-Two
LDM231-251 Power Cables Hidden.svg | <div style="font-style:normal; text-align:center;">Power Cables,<br>2 x One-to-Three &<br>1 x One-to-Two</div>
LDP216-121_LAN_Cable.svg|4 x Network Cables (3.5 m)
LDP216-121_LAN_Cable.svg| <div style="font-style:normal; text-align:center;">4 x Network Cables (3.5 m)</div>
</gallery>
</gallery>


===Notes===
<references/>
<references/>
{{Note|
 
:*This product is packed in a wooden crate.
:*Due to the size and weight, it is recommended that two or more people handle it.
:*You can identify the contents inside the case by the product labels on it.
}}
=Product Overview=
=Product Overview=
==Front Panel==
==Front Panel==
Line 65: Line 68:
<div class="res-img">[[File:LDM231-251 Rear View.png |550px|alt=Rear Panel View]]</div>
<div class="res-img">[[File:LDM231-251 Rear View.png |550px|alt=Rear Panel View]]</div>
=Control Panel and I/O=
=Control Panel and I/O=
==Control Panel and I/O==
==Control Panel==
<div class="res-img">[[File:LDM231-251 Control Panel and IO.png |550px|alt=LDM231-251's Control Panel and I/O]]</div>
<div class="res-img">[[File:LDM231-251 Control Panel and IO.png |550px|alt=LDM231-251's Control Panel and I/O]]</div>


{| class="wikitable" style="text-align:center; background-color:#ffffff;" width="60%"
{| class="wikitable" style="text-align:center; background-color:#ffffff;" width="60%"
|-  
|-  
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:20%;"| Number
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:10%;"| Number
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:20%;"| Port
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:20%;"| Port
! style="font-weight:bold; background-color:#DB0025; color:#ffffff;"| Description
! style="font-weight:bold; background-color:#DB0025; color:#ffffff;"| Description
Line 91: Line 94:
|-
|-
| style="font-weight:bold;" | 5
| style="font-weight:bold;" | 5
| USB 2.0
| '''USB 2.0'''
| style="text-align:left;" | USB Reader (5V/0.5A).  
| style="text-align:left;" | USB Reader (5V/0.5A).  
|-
|-
| style="font-weight:bold;" | 6
| style="font-weight:bold;" | 6
| Menu
| '''Menu'''
| style="text-align:left;" | Open the display settings or On-Screen Display (OSD) Menu.  
| style="text-align:left;" | Open the display settings or On-Screen Display (OSD) Menu.  
|-
|-
| style="font-weight:bold;" | 7
| style="font-weight:bold;" | 7
| Brightness/OK
| '''Brightness/OK'''
| style="text-align:left;" |  
| style="text-align:left;" |  
*Brightness adjustment button.  
*Brightness adjustment button.  
Line 105: Line 108:
|-
|-
| style="font-weight:bold;" | 8
| style="font-weight:bold;" | 8
| Brightness Decrease  
| '''Brightness Decrease'''
| style="text-align:left;" | Decrease the brightness level.  
| style="text-align:left;" | Decrease the brightness level.  
|-
|-
| style="font-weight:bold;" | 9
| style="font-weight:bold;" | 9
| Brightness Increase  
| '''Brightness Increase'''
| style="text-align:left;" | Increase the brightness level.  
| style="text-align:left;" | Increase the brightness level.  
|-
|-
| style="font-weight:bold;" | 10
| style="font-weight:bold;" | 10
| Power  
| '''Power'''
| style="text-align:left;" | Power on, standby and wake button.  
| style="text-align:left;" | Power on, standby and wake button.  
|-
|-
| style="font-weight:bold;" | 11
| style="font-weight:bold;" | 11
| Indicator Light  
| '''Indicator Light'''
| style="text-align:left;" | Power status indicator light.  
| style="text-align:left;" | Power status indicator light.  
|-
|-
| style="font-weight:bold;" | 12
| style="font-weight:bold;" | 12
| HDMI 4
| '''HDMI 4'''
| style="text-align:left;" | 4 High definition input: PIP/PBP, connect to PC with HDMI output, set-top box, or other video device.  
| style="text-align:left;" | 4 High definition input: PIP/PBP, connect to PC with HDMI output, set-top box, or other video device.  
|-
|-
| style="font-weight:bold;" | 13
| style="font-weight:bold;" | 13
| Audio Out  
| '''Audio Out'''
| style="text-align:left;" | Audio output to an external audio device.
| style="text-align:left;" | Audio output to an external audio device.
|}
|}
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{| class="wikitable" style="text-align:center; background-color:#ffffff;" width="60%"
{| class="wikitable" style="text-align:center; background-color:#ffffff;" width="60%"
|-  
|-  
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:20%;"| Number
! colspan="2" style="font-weight:bold; background-color:#DB0025; color:#ffffff;" | Item
! style="font-weight:bold; background-color:#DB0025; color:#ffffff; width:20%;"| Port
! style="font-weight:bold; background-color:#DB0025; color:#ffffff;"| Description
! style="font-weight:bold; background-color:#DB0025; color:#ffffff;"| Description
|-
|-
| style="font-weight:bold;" | 1
| style="font-weight:bold;" | 1
| S/PDIF Out
| '''S/PDIF Out'''
| style="text-align:left;" | Multi-channel optical audio signal.
| style="text-align:left;" | Multi-channel optical audio signal.
|-
|-
| style="font-weight:bold;" | 2
| style="font-weight:bold;" | 2
| Audio OUT
| '''Audio OUT'''
| style="text-align:left;" | Audio output to an external speaker.
| style="text-align:left;" | Audio output to an external speaker.
|-
|-
| style="font-weight:bold;" | 3
| style="font-weight:bold;" | 3
| LAN
| '''LAN'''
| style="text-align:left;" | Standard RJ45 (10M/100M/1000M) Internet connection interface.
| style="text-align:left;" | Standard RJ45 (10M/100M/1000M) Internet connection interface.
|-
|-
| style="font-weight:bold;" | 4
| style="font-weight:bold;" | 4
| RJ45
| '''RJ45'''
| style="text-align:left;" | Standard RJ45 control connection interface.
| style="text-align:left;" | Standard RJ45 control connection interface.
|-
|-
| style="font-weight:bold;" | 5
| style="font-weight:bold;" | 5
| HDMI 1/2/3
| '''HDMI 1/2/3'''
| style="text-align:left;" | High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.
| style="text-align:left;" | High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.
|-
|-
| style="font-weight:bold;" | 6
| style="font-weight:bold;" | 6
| HDMI Out
| '''HDMI Out'''
| style="text-align:left;" | Extend the display's content out to another display device.
| style="text-align:left;" | Extend the display's content out to another display device.
|-
|-
| style="font-weight:bold;" | 7
| style="font-weight:bold;" | 7
| USB 2.0
| '''USB 2.0'''
| style="text-align:left;" | USB Type A port for power (5V/2A).
| style="text-align:left;" | USB Type A port for power (5V/2A).
|-
|-
| style="font-weight:bold;" | 8
| style="font-weight:bold;" | 8
| HDMI IN 1.4
| '''HDMI IN 1.4'''
| style="text-align:left;" | <p>High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.</p>
| style="text-align:left;" | <p>High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.</p>
:'''NOTE:'''This port can also be accessed without removing the System Control Box Cover.
:'''NOTE:''' This port can also be accessed without removing the System Control Box Cover.
|-
|-
| style="font-weight:bold;" | 9
| style="font-weight:bold;" | 9
| Audio Out
| '''Audio Out'''
| style="text-align:left;" | <p>Audio output to an external audio device.</p>
| style="text-align:left;" | <p>Audio output to an external audio device.</p>
:'''NOTE:'''This port can also be accessed without removing the System Control Box Cover.
:'''NOTE:''' This port can also be accessed without removing the System Control Box Cover.
|-
|-
| style="font-weight:bold;" | 10
| style="font-weight:bold;" | 10
| IR Extension
| '''IR Extension'''
| style="text-align:left;" | Connection point for an extended IR receiver.
| style="text-align:left;" | Connection point for an extended IR receiver.
|-
|-
| style="font-weight:bold;" | 10
| style="font-weight:bold;" | 11
| RS-232
| '''RS-232'''
| style="text-align:left;" | Serial control port.
| style="text-align:left;" | Serial control port.
|-
|-
| style="font-weight:bold;" | 11
| style="font-weight:bold;" | 12
| Control Board Switch
| '''Control Board Switch'''
| style="text-align:left;" | <p>Control switch for the control board.</p>
| style="text-align:left;" | <p>Control switch for the control board.</p>
:'''NOTE:'''Make sure to switch to the left for RS-232 control.
:'''NOTE:''' Make sure to switch to the left for RS-232 control.
|-
|-
|}
|}

Latest revision as of 06:48, 23 January 2026

LDM231-251 Introduction
Introduction
Remote Control
Wall Installation
Connecting Devices
Using the Display
On-Screen Display Menu
Pre-installed Applications
Specifications
Regulatory and Service Information
RS-232 Protocol
Safety Precautions
Troubleshooting
Maintenance
Maintenance Tools

Package Contents

Note:
  • This product is packed in a wooden crate.
  • Due to the size and weight, it is recommended that two or more people handle it.
  • You can identify the contents inside the case by the product labels on it.
  • Standard Installation (the System Control Box installed Under the Cabinets)
  • Installation Guide
    Installation Guide
  • 8 x Cabinet Sections
    8 x Cabinet Sections
  • 296 x LED Modules[1]
    296 x LED Modules[1]
  • Screen Bezels, 5 x Left & 5 x Right 2 x Bottom
    Screen Bezels,
    5 x Left & 5 x Right
    2 x Bottom
  • System Control Box
    System Control Box
  • 1 x System Control Box Connector Plate
    1 x System Control Box Connector Plate
  • Maintenance Tool (P/N:LD-MK-004)
    Maintenance Tool
    (P/N:LD-MK-004)
  • Suction Tool (P/N: LD-MK-006)
    Suction Tool
    (P/N: LD-MK-006)
  • Wall Mount Brackets, 8 x 1199 mm
    Wall Mount Brackets,
    8 x 1199 mm
  • 6 x Wall Mount Connector Plates
    6 x Wall Mount Connector Plates
  • Nuts and Bolts
    Nuts and Bolts
  • Hand Tools
    Hand Tools
  • 2 x Anti-Static Gloves
    2 x Anti-Static Gloves
  • 2 x Power Cords[2]
    2 x Power Cords[2]
  • 1 x Romote Control With two AAA batteries
    1 x Romote Control
    With two AAA batteries
  • 1 x IR Extension Cable
    1 x IR Extension Cable
  • 1 x USB Thumb Drive
    1 x USB Thumb Drive
  • Hidden Installation (the System Control Box installed Behind the Cabinets)
  • Screen Bezels, 6 x Bottom
    Screen Bezels,
    6 x Bottom
  • Wall Mount Brackets, 6 x 1335 mm
    Wall Mount Brackets,
    6 x 1335 mm
  • 2 x Upper System Control Box Mount Brackets
    2 x Upper System Control Box Mount Brackets
  • 2 x Lower System Control Box Mount Brackets
    2 x Lower System Control Box Mount Brackets
  • 24 x Cable Zip Ties
    24 x Cable Zip Ties
  • Power Cables, 2 x One-to-Three & 1 x One-to-Two
    Power Cables,
    2 x One-to-Three &
    1 x One-to-Two
  • 4 x Network Cables (3.5 m)
    4 x Network Cables (3.5 m)

Notes

  1. ↑ The quantity of spare LED modules varies by country.
  2. ↑ Power consumption is large, so two power cords and two dedicated power outlets are required.

Product Overview

Front Panel

Front Panel View

Rear Panel

Rear Panel View

Control Panel and I/O

Control Panel

LDM231-251's Control Panel and I/O
Number Port Description
1 Light Sensor Ambient light sensor.
2 IR Receiver Receiver for remote control signal.
3 USB Type C USB 2.0 support (5V/1.0A).
4 USB 3.0 USB Reader (5V/0.9A).
5 USB 2.0 USB Reader (5V/0.5A).
6 Menu Open the display settings or On-Screen Display (OSD) Menu.
7 Brightness/OK
  • Brightness adjustment button.
  • Confirm selection when the OSD Menu is open.
8 Brightness Decrease Decrease the brightness level.
9 Brightness Increase Increase the brightness level.
10 Power Power on, standby and wake button.
11 Indicator Light Power status indicator light.
12 HDMI 4 4 High definition input: PIP/PBP, connect to PC with HDMI output, set-top box, or other video device.
13 Audio Out Audio output to an external audio device.

I/O Ports

LDM231-251's I/O ports
Item Description
1 S/PDIF Out Multi-channel optical audio signal.
2 Audio OUT Audio output to an external speaker.
3 LAN Standard RJ45 (10M/100M/1000M) Internet connection interface.
4 RJ45 Standard RJ45 control connection interface.
5 HDMI 1/2/3 High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.
6 HDMI Out Extend the display's content out to another display device.
7 USB 2.0 USB Type A port for power (5V/2A).
8 HDMI IN 1.4

High definition input: PIP/PBP ,connect to PC with HDMI output, set-top box, or other video device.

NOTE: This port can also be accessed without removing the System Control Box Cover.
9 Audio Out

Audio output to an external audio device.

NOTE: This port can also be accessed without removing the System Control Box Cover.
10 IR Extension Connection point for an extended IR receiver.
11 RS-232 Serial control port.
12 Control Board Switch

Control switch for the control board.

NOTE: Make sure to switch to the left for RS-232 control.
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