AI4AVSummary
This spec covers the LG QNED85TUA-series Smart TV (model 50QNED85TUA), a 4K QNED Mini LED television, using its built-in RS-232C service interface and the network IP control (telnet) interface. The source manual documents two parallel command sets: an ASCII serial protocol on the TV's RS-232C/USB-to-Serial port, and a text-based command set on TCP/9761 (IP control is documented for USA models only and must first be enabled in the TV's IP Control Setup menu). Audio/video, power, input, channel, picture and remote-key commands are all available on both transports; 3D and ISM commands exist in the catalogue but are not applicable to this 3D-less LED model.
Transport
protocols:
- serial
- tcp
serial:
baud_rate: 9600
data_bits: 8
parity: none
stop_bits: 1
flow_control: null # UNRESOLVED: flow control not stated in source (3-wire config shown in cable diagram)
cable: crossed # UNRESOLVED: source says "Use a crossed (reverse) cable" - capture as note
addressing:
port: 9761
auth:
type: none # inferred: no protocol-level auth described; the 3-digit code 828 is a TV-menu password to enable IP Control, not a telnet login
Notes on transport
- Serial: 9600 bps UART, 8-N-1, ASCII. DE9 (D-Sub 9) or phone-jack or USB-to-Serial (PL2303, VID 0x0557 / PID 0x2008). 3-wire config (RXD/TXD/GND) shown in source. Cable not provided.
- Set ID is part of every RS-232C command (hex
00–63, decimal 1–99;00= broadcast to all sets). Set ID is not used on the IP control transport. - IP control: connect with telnet to the TV's IP address on TCP port 9761. Connection greeting shows the IP; send commands as
COMMAND_NAME arg1 arg2 ...lines followed by Enter; responses areOKorNG. Sendquitto disconnect.
Traits
- powerable # inferred from ka / POWER commands
- queryable # inferred from FF-data status read pattern on most commands
- routable # inferred from xb / INPUT_SELECT commands
- levelable # inferred from volume/contrast/brightness/color/tint/treble/bass/balance/backlight commands
Actions
# Two transports are documented in the source: RS-232C (serial) and Network IP Control (TCP).
# RS-232C actions are prefixed `rs232_`; IP actions are prefixed `ip_`.
# RS-232C command format: [Cmd1][Cmd2][ ][Set ID][ ][Data][Cr]
# where [Cr] = carriage return (0x0D) and [ ] = space (0x20).
# Set ID is hex 00..63 (00 = broadcast). Data is hex.
# To query current state of a settable command, send Data = FF.
# IP control command format: COMMAND_NAME arg1 arg2 ... (newline-terminated).
# ---------- RS-232C: Power ----------
- id: rs232_power
label: Power (set/query)
kind: action
command: "ka {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex (00=broadcast, 01-63)
- name: data
type: string
description: "00 = Power Off, 01 = Power On, FF = status query"
notes: "Ack: [a][ ][Set ID][ ][OK/NG][Data][x]. With USB-to-Serial cable, ka only works when TV is on; with RS-232C cable it works in power-on or power-off state."
# ---------- RS-232C: Aspect Ratio ----------
- id: rs232_aspect_ratio
label: Aspect Ratio (Main Picture Size)
kind: action
command: "kc {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "01=Normal, 02=Wide(16:9), 04=Zoom, 05=Zoom2, 06=Set by Program/Original, 07=14:9, 09=Just Scan, 0B=Full Wide, 0C=21:9, 10-1F=Cinema Zoom 1-16, FF=query"
notes: "Full Wide (0B) Latin America except Colombia only. Just Scan in DTV/HDMI/Component. 21:9 depending on model."
# ---------- RS-232C: Screen Mute ----------
- id: rs232_screen_mute
label: Screen Mute
kind: action
command: "kd {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Screen mute off (Picture on, Video mute off), 01=Screen mute on (Picture off), 10=Video mute on, FF=query"
# ---------- RS-232C: Volume Mute ----------
- id: rs232_volume_mute
label: Volume Mute
kind: action
command: "ke {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Mute on (volume off), 01=Mute off (volume on), FF=query"
# ---------- RS-232C: Volume Control ----------
- id: rs232_volume_control
label: Volume Control
kind: action
command: "kf {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 (hex) volume level, FF=query"
# ---------- RS-232C: Contrast ----------
- id: rs232_contrast
label: Contrast
kind: action
command: "kg {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 contrast, FF=query"
# ---------- RS-232C: Brightness ----------
- id: rs232_brightness
label: Brightness
kind: action
command: "kh {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 brightness, FF=query"
# ---------- RS-232C: Color/Colour ----------
- id: rs232_color
label: Color/Colour
kind: action
command: "ki {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 color, FF=query"
# ---------- RS-232C: Tint ----------
- id: rs232_tint
label: Tint
kind: action
command: "kj {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Red .. 64=Green, FF=query"
notes: "Source ack prefix documented as [r]; appears to be a typo for [j]."
# ---------- RS-232C: Sharpness ----------
- id: rs232_sharpness
label: Sharpness
kind: action
command: "kk {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-32 sharpness, FF=query. Depending on model."
# ---------- RS-232C: OSD Select ----------
- id: rs232_osd_select
label: OSD Select
kind: action
command: "kl {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=OSD off, 01=OSD on, FF=query"
# ---------- RS-232C: Remote Control Lock ----------
- id: rs232_remote_lock
label: Remote Control Lock Mode
kind: action
command: "km {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Lock off, 01=Lock on, FF=query"
notes: "Locks front panel + remote. Released by main power cycle (plug-off/plug-in, 20-30s). In standby with key lock on, TV will not turn on via IR/local power key."
# ---------- RS-232C: Treble ----------
- id: rs232_treble
label: Treble
kind: action
command: "kr {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 treble, FF=query"
notes: "Source ack prefix documented as [u]; appears to be a typo for [r]."
# ---------- RS-232C: Bass ----------
- id: rs232_bass
label: Bass
kind: action
command: "ks {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 bass, FF=query"
# ---------- RS-232C: Balance ----------
- id: rs232_balance
label: Balance
kind: action
command: "kt {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 balance, FF=query"
# ---------- RS-232C: Color Temperature ----------
- id: rs232_color_temperature
label: Color Temperature
kind: action
command: "xu {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 color temperature, FF=query"
# ---------- RS-232C: ISM Method ----------
- id: rs232_ism_method
label: ISM Method
kind: action
command: "jp {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "02=Orbiter, 08=Normal, 20=Color Wash, FF=query"
notes: "Plasma TV only. Will return NG on QNED LED models."
# ---------- RS-232C: Equalizer ----------
- id: rs232_equalizer
label: Equalizer
kind: action
command: "jv {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "9-bit value: bits 7-5 = frequency band (000=1st, 001=2nd, 010=3rd, 011=4th, 100=5th); bits 4-0 = step 0-19 (decimal), hex. FF=query. Requires sound mode = EQ adjustable."
notes: "MSB-LSB byte layout: 0bFFFFFSSS where FFF=frequency band index, SSSSS=step value."
# ---------- RS-232C: Energy Saving ----------
- id: rs232_energy_saving
label: Energy Saving
kind: action
command: "jq {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Off, 01=Minimum, 02=Medium, 03=Maximum, 04=Auto (LCD/LED) / Intelligent sensor (PDP), 05=Screen off, FF=query"
# ---------- RS-232C: Tune Command (Europe/Mid-East/Colombia/Asia ex KR/JP) ----------
- id: rs232_tune_eu_analog
label: Tune Command - Analog Antenna/Cable (EU/Mid-East/Asia)
kind: action
command: "ma {set_id} {data00} {data01} {data02}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data00
type: string
description: High byte channel data (hex)
- name: data01
type: string
description: Low byte channel data (hex)
- name: data02
type: string
description: "Input source: 00=Antenna TV (ATV), 80=Cable TV (CATV)"
notes: "Range 00 00 to 00 C7 (decimal 0-199). Example: ma 00 00 0a 00 = Analog antenna channel 10."
- id: rs232_tune_eu_digital
label: Tune Command - Digital Antenna/Cable/Satellite (EU/Mid-East/Asia)
kind: action
command: "ma 0 {data00} {data01} {data02} {data03} {data04} {data05}\r"
params:
- name: data00
type: string
description: High Channel data (hex) - xx (don't care) for digital
- name: data01
type: string
description: Low Channel data (hex) / Major High byte
- name: data02
type: string
description: Low Channel data (hex) / Major Low byte
- name: data03
type: string
description: Minor High byte (don't care in Satellite)
- name: data04
type: string
description: Minor Low byte (don't care in Satellite)
- name: data05
type: string
description: "Input source: 00=ATV, 01=CATV, 02=Antenna DTV (use physical), 06=Cable DTV (use physical), 22=Antenna DTV (no physical), 26=Cable DTV (no physical), 40=Satellite DTV, 46=Cable DTV (one-part), 50=Satellite Radio, 66=Cable DTV (one-part major-only), 90=Cable CADTV, A0=Cable CA-Radio"
notes: "Two bytes per major/minor; usually low byte alone. Range 00 00 to 27 0F (decimal 0-9999). Example: ma 00 03 E8 40 = Satellite channel 1000."
- id: rs232_tune_jp
label: Tune Command - Digital (Japan)
kind: action
command: "ma 0 {data00} {data01} {data02} {data03} {data04} {data05}\r"
params:
- name: data00
type: string
description: Don't care
- name: data01
type: string
description: Major High byte
- name: data02
type: string
description: Major Low byte
- name: data03
type: string
description: Minor High byte
- name: data04
type: string
description: Minor Low byte
- name: data05
type: string
description: "Input source (Japan): 02=Antenna DTV, 07=BS, 08=CS1, 09=CS2"
notes: "Example: ma 00 00 00 11 00 01 02 = digital antenna (ISDB-T) channel 17-1. Example: ma 00 00 00 1E 00 00 07 = BS channel 30."
- id: rs232_tune_na
label: Tune Command - Analog Cable (KR/NA/LatAm ex Colombia)
kind: action
command: "ma 0 {data00} {data01} {data02} {data03} {data04} {data05}\r"
params:
- name: data00
type: string
description: Channel data (hex)
- name: data01
type: string
description: Major High byte (00 if no major)
- name: data02
type: string
description: Major Low byte (00 if no major)
- name: data03
type: string
description: Minor High byte (00 if no minor)
- name: data04
type: string
description: Minor Low byte (00 if no minor)
- name: data05
type: string
description: "Input source: 01=Analog Cable TV (CATV)"
notes: "Example: ma 00 23 00 00 00 00 01 = analog cable channel 35. Antenna ATV range 02-45 (decimal 2-69)."
# ---------- RS-232C: Channel Add/Del ----------
- id: rs232_channel_add_del
label: Channel Add/Del (Skip)
kind: action
command: "mb {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=Del (ATSC/ISDB) / Skip (DVB), 01=Add, FF=query"
# ---------- RS-232C: Key ----------
- id: rs232_key
label: IR Remote Key
kind: action
command: "mc {set_id} {key_code}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: key_code
type: string
description: "Hex key code (2 digits). Valid: 00=CH+, 01=CH-, 02=Vol+, 03=Vol-, 06=Right, 07=Left, 08=Power, 09=Mute, 0B=Input, 0E=Sleep, 0F=TV, 10-19=Number 0-9, 1A=Q.View, 1E=FAV, 20=Text, 21=T.Opt, 28=Return, 30=AV Mode, 39=Caption, 40=Up, 41=Down, 42=My Apps, 43=Menu, 44=OK, 45=Q.Menu, 4C=List (ATSC/ISDB only), 4D=Picture, 52=Sound, 53=List, 5B=Exit, 60=PIP, 61=Blue, 63=Yellow, 71=Green, 72=Red, 79=Ratio, 91=AD, 9E=Live Menu, 7A=User Guide, 7C=Smart/Home, 7E=Simplink, 8E=Fwd, 8F=Rewind, AA=Info, AB=Program Guide, B0=Play, B1=Stop, B5=Recent, BA=Pause, BB=Soccer, BD=REC, DC=3D, 99=AutoConfig, 9F=App, 9B=TV/PC"
# ---------- RS-232C: Control Backlight / Panel Light ----------
- id: rs232_backlight
label: Control Backlight / Control Panel Light
kind: action
command: "mg {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00-64 backlight/panel light level, FF=query"
# ---------- RS-232C: Input Select (Main Picture) ----------
- id: rs232_input_select
label: Input Select (Main Picture)
kind: action
command: "xb {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "00=DTV, 01=CADTV, 02=Satellite DTV, 03=ISDB-CS1 (JP), 04=ISDB-CS2 (JP), 10=ATV, 11=CATV, 20=AV/AV1, 21=AV2, 40=Component1, 41=Component2, 60=RGB, 90=HDMI1, 91=HDMI2, 92=HDMI3, 93=HDMI4, FF=query"
notes: "ISDB-BS (Japan) not enumerated; depending on model and signal."
# ---------- RS-232C: 3D ----------
- id: rs232_3d
label: 3D Mode
kind: action
command: "xt {set_id} {d0} {d1} {d2} {d3}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: d0
type: string
description: "00=3D On, 01=3D Off, 02=3D-to-2D, 03=2D-to-3D"
- name: d1
type: string
description: "Pattern: 00=Top-Bottom, 01=Side-by-Side, 02=Check Board, 03=Frame Sequential, 04=Column interleaving, 05=Row interleaving"
- name: d2
type: string
description: "Plasma only: 00=Right-to-Left, 01=Left-to-Right. QNED/LED: don't care."
- name: d3
type: string
description: "3D Depth 00-14 (hex, 0-20 decimal). Don't care when d0=00 or d0=01 or d0=02."
notes: "3D models only. Will return NG on this 4K QNED LED TV."
# ---------- RS-232C: Extended 3D ----------
- id: rs232_extended_3d
label: Extended 3D
kind: action
command: "xv {set_id} {d0} {d1}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: d0
type: string
description: "Option: 00=Picture Correction, 01=Depth (Manual only), 02=Viewpoint, 06=Color Correction, 07=Sound Zooming, 08=Normal Image View, 09=Mode (Genre)"
- name: d1
type: string
description: "Value depends on d0: 00/01, 0-14 (0-20 decimal), etc. See source for per-d0 ranges."
notes: "3D models only. Will return NG on this 4K QNED LED TV."
# ---------- RS-232C: Auto Configure ----------
- id: rs232_auto_configure
label: Auto Configure
kind: action
command: "ju {set_id} {data}\r"
params:
- name: set_id
type: string
description: Set ID as 2-digit hex
- name: data
type: string
description: "01=Run auto configure. RGB (PC) mode only."
# ---------- IP Control: Power ----------
- id: ip_power
label: Power
kind: action
command: "POWER {state}"
params:
- name: state
type: string
description: "off (only documented value)"
notes: "Source lists only POWER off. POWER on not explicitly documented in IP section - may be implicit. FF=query pattern does not apply on IP transport."
# ---------- IP Control: Aspect Ratio ----------
- id: ip_aspect_ratio
label: Aspect Ratio
kind: action
command: "ASPECT_RATIO {mode}"
params:
- name: mode
type: string
description: "4by3 | 16by9 | setbyoriginal"
# ---------- IP Control: Screen Mute ----------
- id: ip_screen_mute
label: Screen Mute
kind: action
command: "SCREEN_MUTE {mode}"
params:
- name: mode
type: string
description: "screenmuteon | videomuteon | allmuteoff"
# ---------- IP Control: Volume Mute ----------
- id: ip_volume_mute
label: Volume Mute
kind: action
command: "VOLUME_MUTE {state}"
params:
- name: state
type: string
description: "on | off"
# ---------- IP Control: Volume Control ----------
- id: ip_volume_control
label: Volume Control
kind: action
command: "VOLUME_CONTROL {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Contrast ----------
- id: ip_contrast
label: Contrast
kind: action
command: "PICTURE_CONTRAST {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Brightness ----------
- id: ip_brightness
label: Brightness
kind: action
command: "PICTURE_BRIGHTNESS {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Color/Colour ----------
- id: ip_color
label: Color/Colour
kind: action
command: "PICTURE_COLOUR {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Tint ----------
- id: ip_tint
label: Tint
kind: action
command: "PICTURE_TINT {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Sharpness ----------
- id: ip_sharpness
label: Sharpness
kind: action
command: "PICTURE_SHARPNESS {level}"
params:
- name: level
type: integer
description: "0 to 50 (decimal)"
# ---------- IP Control: OSD Select ----------
- id: ip_osd_select
label: OSD Select
kind: action
command: "OSD_SELECT {state}"
params:
- name: state
type: string
description: "on | off"
# ---------- IP Control: Remote Control Lock ----------
- id: ip_remote_lock
label: Remote Control Lock
kind: action
command: "REMOTECONTROLER_LOCK {state}"
params:
- name: state
type: string
description: "on | off"
# ---------- IP Control: Balance ----------
- id: ip_balance
label: Audio Balance
kind: action
command: "AUDIO_BALANCE {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Color Temperature ----------
- id: ip_color_temperature
label: Color Temperature
kind: action
command: "PICTURE_COLOUR_TEMPERATURE {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
# ---------- IP Control: Equalizer ----------
- id: ip_equalizer
label: Equalizer
kind: action
command: "AUDIO_EQUALIZER {band} {step}"
params:
- name: band
type: integer
description: "1 to 5 (frequency band)"
- name: step
type: integer
description: "0 to 20 (step decimal)"
notes: "Precondition: All settings > sound > sound mode settings > Equalizer on."
# ---------- IP Control: Energy Saving ----------
- id: ip_energy_saving
label: Energy Saving
kind: action
command: "ENERGY_SAVING {mode}"
params:
- name: mode
type: string
description: "screenoff | maximum | medium | minimum | off"
# ---------- IP Control: Tune Command variants ----------
- id: ip_tune_atsc_atv_antenna
label: Tune Channel - ATSC/ATV Antenna
kind: action
command: "CHANNEL_SETTING_ATSC_ATV {channel} antenna"
params:
- name: channel
type: string
description: Channel number
- id: ip_tune_atsc_atv_cable
label: Tune Channel - ATSC/ATV Cable
kind: action
command: "CHANNEL_SETTING_ATSC_ATV {channel} cable"
params:
- name: channel
type: string
description: Channel number
- id: ip_tune_atsc_dtv_cable_no_phy
label: Tune Channel - ATSC/DTV Cable (no physical)
kind: action
command: "CHANNEL_SETTING_ATSC_DTV {channel} cablenotphy"
params:
- name: channel
type: string
description: Channel number
- id: ip_tune_atsc_dtv_antenna_major_minor
label: Tune Channel - ATSC/DTV Antenna (Major/Minor, no physical)
kind: action
command: "CHANNEL_SETTING_ATSC_DTV {major} {minor} antennanotphy"
params:
- name: major
type: string
description: Major channel number
- name: minor
type: string
description: Minor channel number
- id: ip_tune_atsc_dtv_cable_major_minor
label: Tune Channel - ATSC/DTV Cable (Major/Minor, no physical)
kind: action
command: "CHANNEL_SETTING_ATSC_DTV {major} {minor} cablenotphy"
params:
- name: major
type: string
description: Major channel number
- name: minor
type: string
description: Minor channel number
# ---------- IP Control: Channel Add/Del ----------
- id: ip_channel_add_delete
label: Channel Add/Delete
kind: action
command: "CHANNEL_ADD_DELETE {state}"
params:
- name: state
type: string
description: "add | delete"
# ---------- IP Control: Key ----------
- id: ip_key_action
label: IR Remote Key Action
kind: action
command: "KEY_ACTION {key}"
params:
- name: key
type: string
description: "exit | channelup | channeldown | volumeup | volumedown | arrowright | arrowleft | volumemute | deviceinput | sleepreserve | livetv | previouschannel | favoritechannel | teletext | teletextoption | returnback | avmode | captionsubtitle | arrowup | arrowdown | myapp | settingmenu | ok | quickmenu | videomode | audiomode | channellist | bluebutton | yellowbutton | greenbutton | redbutton | aspectratio | audiodescription | programmorder | userguide | smarthome | simplelink | fastforward | rewind | programminfo | programguide | play | slowplay | soccerscreen | record | 3d | autoconfig | app | screenbright | number0..number9"
# ---------- IP Control: Backlight ----------
- id: ip_backlight
label: Picture Backlight
kind: action
command: "PICTURE_BACKLIGHT {level}"
params:
- name: level
type: integer
description: "0 to 100 (decimal)"
notes: "Precondition: All settings > picture > Energy Saving off."
# ---------- IP Control: Input Select ----------
- id: ip_input_select
label: Input Select
kind: action
command: "INPUT_SELECT {source}"
params:
- name: source
type: string
description: "dtv | atv | cadtv | catv | avav1 | component1 | hdmi1 | hdmi2 | hdmi3"
# ---------- IP Control: 3D ----------
- id: ip_picture_3d_off_3dto2d
label: Picture 3D - Off / 3D-to-2D
kind: action
command: "PICTURE_3D {mode}"
params:
- name: mode
type: string
description: "off | 3dto2d"
notes: "3D models only."
- id: ip_picture_3d_2dto3d
label: Picture 3D - 2D-to-3D
kind: action
command: "PICTURE_3D 2dto3d {direction} {depth}"
params:
- name: direction
type: string
description: "righttoleft | lefttoright"
- name: depth
type: integer
description: "0 to 20"
notes: "3D models only."
- id: ip_picture_3d_on
label: Picture 3D - On
kind: action
command: "PICTURE_3D on {pattern} {direction} {depth}"
params:
- name: pattern
type: string
description: "topandbottom | sidebyside | checkboard | framesequential | columninterleaving | rowinterleaving"
- name: direction
type: string
description: "righttoleft | lefttoright"
- name: depth
type: integer
description: "0 to 20"
notes: "3D models only."
# ---------- IP Control: Extended 3D ----------
- id: ip_picture_3d_extension_picture_correction
label: Picture 3D Extension - Picture Correction
kind: action
command: "PICTURE_3D_EXTENSION picturecorrection {value}"
params:
- name: value
type: integer
description: "0 (Right to Left) | 1 (Left to Right)"
notes: "3D models only. Precondition: PICTURE_3D on X X X."
- id: ip_picture_3d_extension_color_sound
label: Picture 3D Extension - Color Correction / Sound
kind: action
command: "PICTURE_3D_EXTENSION {option} {value}"
params:
- name: option
type: string
description: "colorcorrection | sound"
- name: value
type: integer
description: "0 (off) | 1 (on)"
notes: "3D models only. Precondition: PICTURE_3D on X X X."
- id: ip_picture_3d_extension_normal
label: Picture 3D Extension - Normal Image View
kind: action
command: "PICTURE_3D_EXTENSION normal {value}"
params:
- name: value
type: integer
description: "0 (off) | 1 (on)"
notes: "3D models only."
- id: ip_picture_3d_extension_depth_viewpoint
label: Picture 3D Extension - Depth / Viewpoint
kind: action
command: "PICTURE_3D_EXTENSION {option} {value}"
params:
- name: option
type: string
description: "depth | viewpoint"
- name: value
type: integer
description: "0 to 20 (viewpoint range)"
notes: "3D models only. Preconditions: PICTURE_3D 2dto3d X X; depth also requires PICTURE_3D_EXTENSION genre 4."
- id: ip_picture_3d_extension_genre
label: Picture 3D Extension - Mode (Genre)
kind: action
command: "PICTURE_3D_EXTENSION genre {value}"
params:
- name: value
type: integer
description: "0=Standard | 1=Sport | 2=Cinema | 3=Extreme | 4=Manual | 5=Auto"
notes: "3D models only. Precondition: PICTURE_3D 2dto3d X X."
Feedbacks
- id: power_state
type: enum
values: [on, off]
source: "ka FF\r (RS-232) - data 00=off, 01=on"
- id: volume_mute_state
type: enum
values: [mute_on, mute_off]
source: "ke FF\r (RS-232) - data 00=on, 01=off"
- id: volume_level
type: integer
range: "0-100 (decimal) on IP, 0-64 (hex) on RS-232"
source: "kf FF\r (RS-232) / VOLUME_CONTROL (IP)"
- id: input_source
type: enum
values: [dtv, cadtv, satellite_dtv, isdb_cs1, isdb_cs2, atv, catv, av1, av2, component1, component2, rgb, hdmi1, hdmi2, hdmi3, hdmi4]
source: "xb FF\r (RS-232)"
- id: aspect_ratio
type: enum
values: [normal, wide_16_9, zoom, zoom2, set_by_program, ratio_14_9, just_scan, full_wide, ratio_21_9, cinema_zoom_1_to_16]
source: "kc FF\r (RS-232)"
- id: screen_mute_state
type: enum
values: [screen_mute_off, screen_mute_on, video_mute_on]
source: "kd FF\r (RS-232)"
- id: osd_state
type: enum
values: [osd_off, osd_on]
source: "kl FF\r (RS-232)"
- id: remote_lock_state
type: enum
values: [lock_off, lock_on]
source: "km FF\r (RS-232)"
- id: energy_saving_state
type: enum
values: [off, minimum, medium, maximum, auto, screen_off]
source: "jq FF\r (RS-232)"
- id: channel_skip_state
type: enum
values: [del_skip, add]
source: "mb FF\r (RS-232)"
- id: backlight_level
type: integer
range: "0-64 (hex) on RS-232, 0-100 (decimal) on IP"
source: "mg FF\r (RS-232) / PICTURE_BACKLIGHT (IP)"
- id: ip_control_connection
type: enum
values: [ok, ng]
source: "OK/NG response to any IP command"
Variables
# Set ID: identifies which TV on a multi-drop RS-232C bus. Range 1-99 (hex 01-63).
# 00 = broadcast to all connected sets. Configured via TV menu (Settings > General >
# About this TV / OPTION > SET ID), not via serial command.
- id: set_id
type: integer
range: "1-99"
config_via: TV menu (SETTINGS > General > About this TV / OPTION > SET ID)
notes: "Indicated as decimal on menu, as hexadecimal (0x00-0x63) on transmission/receiving protocol."
# IP Control Setup: must be enabled in TV menu before telnet 9761 accepts commands.
# Source documents a 3-digit code 828 (default, changeable) to enter the IP Control
# Setup menu on the TV. This is a TV-menu password, not a telnet protocol auth.
- id: ip_control_enabled
type: enum
values: [on, off]
config_via: TV menu (hold Settings 5s on Live TV, enter 828, OK, then enable)
notes: "Reboot required after toggling. Default 3-digit menu code: 828 (changeable). USA only per source."
Safety
confirmation_required_for: []
interlocks:
- id: remote_control_lock
description: "Lock front panel + remote via km 01 (RS-232) or REMOTECONTROLER_LOCK on (IP). Use to prevent unintended input when remote is lost or in public spaces."
source: "RS-232C km command section"
- id: lock_release_on_power_cycle
description: "External control lock (km) is automatically released when main power is cycled (plug-off, wait 20-30 seconds, plug-in)."
source: "RS-232C km command section"
- id: lock_interaction_with_standby
description: "In standby mode (DC off by off-timer or ka/mc command), with key lock on, TV will not turn on via IR or local power key."
source: "RS-232C km command section"
# UNRESOLVED: source contains no explicit electrical-safety, voltage, or installer warnings beyond the cable/connector notes. The 3-wire config diagram is a wiring note, not a safety interlock.
Notes
Source coverage: This spec is generated from the LG Smart TV Owner's Manual "External Control Device Setup" section, which is a generic LG document covering many TV model series. The 50QNED85TUA is a 2024 4K QNED Mini LED TV. Commands in the source tagged "(only 3D models)" (xt, xv) and "(Only Plasma TV)" (jp) will return NG on this device.
Set ID range mismatch: Source lists Set ID adjustment range as 1-99, but the Real data mapping table also lists 00 as Step 0 and 63 as Step 99 with FE/FF as 254/255, plus two-byte values up to 27 0F (9999) for channel numbers. Set ID 00 is the broadcast value per the transmission protocol section.
Ack format anomalies in source: Two RS-232 commands have an ack prefix in the source that does not match the command's letter:
Tint (kj)— source lists ack prefix[r]. Treated as a typo for[j].Treble (kr)— source lists ack prefix[u]. Treated as a typo for[r].
Transport divergence:
- IP control is documented "For USA only" in the source. Out-of-USA firmware may or may not expose the IP control menu and TCP/9761 listener.
- Data ranges differ between transports: RS-232 uses 00-64 hex for most levels; IP uses 0-100 decimal. Sharpness: 00-32 hex (RS-232) vs 0-50 decimal (IP).
- IP control commands do not include a Set ID field and do not document an FF-style status read.
- IP control responses are textual
OK/NG; RS-232C responses follow the structured[cmd2][ ][set_id][ ][OK/NG][data][x]format with terminatingx(0x78). - USB-to-Serial converter cable:
ka(power) command works only when the TV is on. RS-232C (DE9/phone-jack) cable:kaworks in both power-on and power-off states. - During media playback or recording, all commands except Power (ka / POWER) and Key (mc / KEY_ACTION) are not executed and treated as
NGon both transports. - IP control Setup menu password: 3-digit code, default
828, changeable. This unlocks the TV menu, not the telnet session.
WOL (Wake-on-LAN): The source mentions powering the TV on via WOL after enabling Mobile TV On (Settings > Mobile TV On) and installing a WOL mobile app. No WOL command packet format is documented in the source — only the high-level procedure. Not modeled as an action.
Cable/connector notes (informational, not control):
- DE9 (D-Sub 9-pin) female-to-female null-modem cable, or phone-jack to RS-232 cable, depending on TV port.
- USB-to-Serial converters must use the PL2303 chip (VID 0x0557, PID 0x2008). LG does not supply the cable.
- 3-wire configuration: RXD, TXD, GND only.
Equalizer bit layout (RS-232 jv command): 9-bit data word — bits 7-5 select frequency band (000=1st, 001=2nd, 010=3rd, 011=4th, 100=5th), bits 4-0 = step value 0-19. Encoded as a single hex byte in the data field. The source acknowledges the same 9-bit value back.
Provenance
source_domains:
- justaddpower.com
source_urls:
- https://www.justaddpower.com/docs/manuals/rs232-lg.pdf
retrieved_at: 2026-06-02T02:42:33.169Z
last_checked_at: 2026-06-02T17:23:00.107Z
Verification Summary
verdict: verified
checked_at: 2026-06-02T17:23:00.107Z
matched_actions: 63
action_count: 63
confidence: medium
summary: "All 63 spec actions matched literally in source; all transport parameters verified; RS-232 and IP command sets fully represented. (5 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "firmware version compatibility not stated in source. Source is the generic LG Smart TV owner manual covering many model series. The 50QNED85TUA is a 2024 4K QNED LED TV; commands tagged \"(only 3D models)\" and \"(Only Plasma TV)\" in the source are documented for completeness but will return NG on this device."
- "flow control not stated in source (3-wire config shown in cable diagram)"
- "source says \"Use a crossed (reverse) cable\" - capture as note"
- "source contains no explicit electrical-safety, voltage, or installer warnings beyond the cable/connector notes. The 3-wire config diagram is a wiring note, not a safety interlock."
- "- Firmware version compatibility ranges not stated in source."
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0