LG Electronics 42LS75A 49LS75A 55LS75A Transmission/Reception Protocol, Acknowledgement

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60TO CONTROL MULTIPLE PRODUCTS

Transmission/Reception Protocol

Transmission

[Command1][Command2][ ][Set ID][ ][Data][Cr]

*[Command1]: identifies between the factory setting and the user setting modes.

*[Command2]: controls monitor sets.

*[Set ID]: Used for selecting a set you want to control. A unique Set ID can be assigned to each set ranging from 1 to 1000(01H~3E8H) under Settings in the OSD menu.

Selecting '00H' for Set ID allows the simultaneous control of all connected monitors.

* [Data]: Transmits command data.

Data count may increase depending on the command.

*[Cr]: Carriage Return. Corresponds to '0x0D' in ASCII code.

*[ ]: White Space. Corresponds to '0x20' in ASCII code.

Acknowledgement

[Command2][ ][Set ID][ ][OK/NG][Data][x]

*The Product transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the data is FF, it indicates the present status data. If the data is in data write mode, it returns the data of the PC computer.

*If a command is sent with Set ID '00' (=0x00), the data is reflected to all monitor sets and each monitor set does not send an acknowledgement (ACK).

*If the data value 'FF' is sent in control mode via RS-232C, the current setting value of a function can be checked (only for some functions).

*Some commands are not supported depending on the model.

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Contents Monitor Signage Table of Contents Licenses Assembly and Preparation AccessoriesOptional Accessories ScrewsSP-2100 Power Cord AN-WF500Parts and Buttons ButtonsConnection Panel Buttons DescriptionConnecting the Stand Connecting the SpeakersConnecting IR & Light Sensor Using Kensington LockPortrait Layout Connecting the OPS OPS Player Attaching and removing the LG Logo Bracket Removing the LG LogoInstalling on a Wall Securing the monitor to a wall optional Remote Control Volume Up/Down ButtonA Button Number and Alphabet buttonsExit USB Menu ControlConnecting to a PC Making ConnectionsDirect Connection Using the Router Using the Internet External Device ConnectionHD Receiver/DVD/VCR Camcorder/Camera/Gaming Device English Daisy Chain Monitors Using the Multi Display Mode function Using the Input List Using My MediaConnecting USB storage devices Remote Control HomeTips for using USB storage devices To use Select Play Remote Control Home To set Device Selection Remote Control HomeFiles Supported by My Media Supported External Subtitle FormatSupported Internal Subtitle Format Supported Video CodecSupported Audio File Supported Photo FileTo play video files on display Remote Control Home Viewing VideosTips for Playing Video Files English Viewing image files Remote Control Home Viewing music files Remote Control HomeViewing Photos Listening to MusicSettings SuperSign Contents File ManagerInformation Picture ID Settings Main Menu Settings Quick SettingsPicture Settings Remote Control Settings Picture Picture Adjust Noise Reduction Mpeg NoiseReduction Black Level Real CinemaEnglish Sound Settings Network Settings To Set Your Network Remote Control SettingsNetwork Wi-Fi Connection Tips for Network Setting General Settings Tips for Wireless Network SettingResets all monitor settings Troubleshooting Does the Check signal cableProblem Action No image is displayedScreen color is abnormal Problem Action Operation does not work normally Problem ActionAfter-image appears on the product Audio function does not workProduct Specifications 42LS75AApplicable only for models that support the speakers 49LS75A Mm x 637.4 mm x 31.7 mm / 15.6 kg 55LS75A Mm x 713.7 mm x 31.7 mm / 20.7 kg Product Dimensions 135.149LS75A 1230.4 28.8 31.7 701 776 713 135.5 727.4 415.2 400 150 150.6 Hdmiops / DVI / Displayport PC Support Mode DTV modeHorizontal Vertical Resolution Frequency Frequency Hz KHz IR Codes Code Hex Function RemarksSome key codes are not supported depending on the model Connecting the cable RS-232C ConfigurationsTo Control Multiple Products Communication ParameterCommand Reference List HexadecimalEnglish Transmission/Reception Protocol TransmissionAcknowledgement Power Command k a Energy Saving Command j q Select Input Command x bAspect Ratio Command k c Contrast Command k gTransmission Kt Set ID DataCr Sound mode Command d y Selects a sound mode Volume Control Command k f Adjusts the playback volumeDay and Time 2 hour/minute/second are set On Timer Input Command f u Auto Power Off 4 Hours Command m nLanguage Command f i Sets the OSD language Reset Command f k Current temperature Command d nKey Command m c White balance red gain Command j m White Balance Green Gain Command j nBacklight Command m g Check Tile Mode Command d z Screen Off Command k d Tile ID Command dTile Mode Command d d Natural Mode in Tile mode Command d j DPM Select Command f j Power On Delay Command f hIR Operation Command t p Local Key Operation Command t o Status Command sCheck Screen Command t z Sets Check Screen Daylight Saving Time Command s dCopyright notices are available for download