IFP7552-2 RS-232 Protocols

    From ViewSonic User Guide Database

    RS-232

    This document describes the hardware interface spec and software protocols of RS-232 interface communication between ViewSonic LFD and PC or other control units with RS-232 protocol.

    The protocol contains three command sections:

    • Set-Function
    • Get-Function
    • Remote control pass-through mode
    NOTE: Below, “PC” represents all the control units that can send or receive the RS-232 protocol command.

    Description

    RS-232 Hardware Specification

    ViewSonic LFD communication port on the rear side:

    1. Connector type: DSUB 9-Pin Male (female or 3.5 mm barrel connector)
    2. Use of crossover (null modem) cable for connection
    3. Pin Assignment:
    Pin # Signal Remark
    Male DSUB 9-Pin (preferred) 1 NC
    Male DSUB.png
    2 RXD Input to Display
    3 TXD Output to Display
    4 NC
    5 GND
    Female DSUB 9-Pin 6 NC
    Female DSUB.png
    7 NC
    8 NC
    9 NC
    frame GND
    Item Signal Remark
    3.5 mm barrel connector
    (alternative for limited space)
    Tip TXD Output from Display
    IFP52 Barrel Connector.jpg
    Ring RXD Input to Display
    Sleeve GND

    LAN Hardware Specification

    ViewSonic LFD communication port on the rear side:

    1. Connector type: 8P8C RJ45
    2. Pin assignment:
    Pin # Signal Remark
    LAN Spec.png
    1 TX+ Output from Display
    2 TX- Output from Display
    3 RX+ Input to Display
    4 BI_D3+ For 1G case
    5 BI_D3- For 1G case
    6 RX- Input to Display
    7 BI_D4+ For 1G case
    8 BI_D4- For 1G case
    frame GND

    RS-232 Communication Setting

    • Baud Rate Select: 9600bps (fixed)
    • Data bits: 8 bits (fixed)
    • Parity: None (fixed)
    • Stop Bits: 1(fixed)

    LAN Communication Setting

    • Type: Ethernet
    • Protocol: TCP/IP
    • Port: 5000 (fixed)
    • WOL Port: 9 (fixed) for UDP *3.2.0
    • Cross subnet: No
    • Logon Credentials: No

    Command Message Reference

    PC sends to LFD command packet followed by “CR”. Every time PC sends control command to Display, the Display shall respond as follows:

    1. If the message is received correctly it will send “+” (02Bh) followed by “CR” (00Dh)
    2. If the message is received incorrectly it will send “-” (02Dh) followed by “CR” (00Dh)

    Protocol

    Set-Function Listing

    The PC can control the Display for specific actions. The Set-Function command allows you to control the Display behavior at a remote site through the RS-232 port. The Set-Function packet format consists of 9 bytes.

    Set-Function Description

    Length Total Byte of Message excluding “CR”
    LFD ID Identification for each of Display (01~98; default is 01)
    ID “99” means to apply the set command for all connected displays. Under such circumstances, only ID#1 display has to reply.
    The LFD ID can be set via the OSD menu for each Display.
    Command Type Identify command type,
    "s" (0x73h): Set Command
    "+" (0x2Bh): Valid Command Reply
    "-" (0x2Dh): Invalid Command Reply
    Command Function command code: One byte ASCII code.
    Value [1~3] Three bytes ASCII that defines the value.
    CR 0x0D

    Set-Function Format

    Send: (Command Type="s")

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5 6 7 8 9

    Reply: (Command Type="+" or "-")

    Name Length ID Command Type CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5
    NOTE: When PC applies command to all displays (ID=99), only the #1 set needs to reply by the name of ID=1.


    Example 1: Set Brightness at 76 for Display (#02) and this; command is valid.

    Send (Hex Format)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Hex 0x38 0x30
    0x32
    0x73 0x24 0x30 0x37 0x36 0x0D

    Reply (Hex Format)

    Name Length ID Command Type CR
    Hex 0x34 0x30
    0x32
    0x2B 0x0D

    Example 2: Set Brightness at 75 for Display (#02) and this; command is NOT valid.

    Send (Hex Format)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Hex 0x38 0x30
    0x32
    0x73 0x24 0x30 0x37 0x35 0x0D

    Reply (Hex Format)

    Name Length ID Command Type CR
    Hex 0x34 0x30
    0x32
    0x2D 0x0D

    Set-Function Table

    A. Basic Function

    Set Function Length ID Command Command Value Range Comments
    Type (ASCII) Code
    (ASCII)
    Code
    (Hex)
    (Three ASCII bytes)
    Power ON *3.2.1/OFF
    (Standby)
    8 s ! 21 000: STBY
    001: ON
    1. The Power-on via LAN control may works only under specific mode. To see display UG for details. *3.1.1

    2. “WOL by MAC address” may available as alternative. *3.2.1

    Input Select 8 s " 22 000: TV

    001: AV
    002: S-Video
    003: YPbPr
    004: HDMI1
    014: HDMI2
    024: HDMI3
    034: HDMI4

    005: DVI
    006: VGA1
    016: VGA2
    026: VGA3
    007: Slot-in PC (OPS/SDM)/HDBT

    008: Internal memory
    009: DP1 *3.2.4
    023: DP2
    019: Type-C 1 *3.3.2
    039: Type-C 2

    00A: Embedded/Main(Android)

    1. No need for USB

    2. For the case of two or more same sources, the 2nd digital is used to indicate the extension.

    3. The HEX of 00A is 30 30 41.

    4. 00Z is reserved for cycle mode *3.3.1

    5. Using 2nd digi to identify DP or Type C. 0 and even numbers stand for DP; odd numbers stand for Type C *3.3.2

    Brightness 8 s $ 24 000 ~ 100
    900: Bright down (-1)
    901: Bright up (+1) *3.1.1
    Backlight *3.2.0 8 A B 42 000~100 1. For Android platform whose main mode is controlled by backlight and the other sources are controlled by brightness.

    2. Derived from Color calibration. *3.2.0

    Power Lock 8 s 4 34 000: Unlock
    001: Lock
    *See note in details
    Volume 8 s 5 35 000 ~ 100
    900: Volume down(-1)
    901:Volume up(+1)
    Mute 8 s 6 36 000: OFF
    001: ON (mute)
    Button Lock 8; s 8 38 000: Unlock
    0001: Lock
    *See note in details
    Menu Lock 8 s > 3E 000: Unlock
    001: Lock
    *See note in details
    Number *3.1.1 8 s @ 40 000~009
    Key Pad *3.1.1 8 s A 41 000: UP
    001: DOWN
    002: LEFT
    003: RIGHT
    004: ENTER
    005: INPUT
    006: MENU/(EXIT)
    007: EXIT
    Remote Control 8 s B 42 000: Disable
    001: Enable
    002: Pass through
    Disable: RCU will be no function

    Enabled: RCU controls normally

    Pass through: Display will bypass the RC code to connected device via the RS-232 port, but not react itself.

    Restore Default 8 s ~ 7E 000 Recover to factory settings

    NOTE:
    1. Behavior at Lock Modes

    Lock Mode Behavior
    Button Lock 1. Lock all buttons on the front panel and RCU, except for “Power”
    2. All the SET functions should be workable via RS-232, even the ones with according hot key in RCU like Mute,…etc.
    MENU Lock 1. Lock the “MENU’ key of front panel and RCU
    2. The Factory and Hospitality modes should not be blocked for the model using MENU-combined key to enter these two modes. Alternative approach will be indicated separately if any limitation by model.
    POWER Lock 1. Lock the “POWER” key on the front and RCU.
    2. The SET_POWER ON/OFF should be workable via RS-232, but does not mean the POWER lock will be released under this case.
    3. Can not be unlocked by reset in OSD setting
    4. Will auto AC power-on in power-lock
    5. Under power-lock, the set will not enter power saving when no PC signal and neither turn off when no other video signals after 15 minutes.
    Remote Control Disable Lock the RCU keys, but keep the front panel buttons workable.

    2. Wake-on-LAN by MAC address as alternative for SET Power on (Length=126 Bytes)

    6 Bytes 6 Bytes (#1) 6 Bytes (#2) ... 6 Bytes (#16) 24 Bytes
    0xFF FF ... FF MAC address MAC address ... MAC address 0x00 00 … 00

    B. Optional Function

    Set Function Length ID Command Command Value Range Comments
    Type (ASCII) Code
    (ASCII)
    Code
    (Hex)
    (Three ASCII bytes)
    Input Select Cycle *3.3.1 8 s " 22 00Z Inputs in cycle loop depend on display itself
    Contrast 8 s # 23 000~100
    Sharpness 8 s % 25 000~100
    Color 8 s & 26 000~100
    Tint 8 s ' 27 000~100
    Backlight On_Off *3.2.3 8 s ( 29 000: Off
    001: On
    Keep both “Backlight On_Off” and “Function On_Off” for backward compatibility *3.3.2
    Color Mode 8 s ) 29 000: Normal
    001: Warm
    002: Cold
    003: Personal
    Freeze On_Off 8 s . 2A 000: Off
    001: On
    Keep both “Freeze On_Off” and “Function On_Off” for backward compatibility *3.3.2
    Surround sound 8 s - 2D 000: Off
    001: On
    Bass 8 s . 2E 000~100
    Treble 8 s / 2F 000~100
    Balance 8 s 0 30 000~100 050 is central
    Picture Size 8 s 1 31 000: FULL (16:9)
    001: NORMAL (4:3)
    002: REAL (1:1)
    *3.1.0
    OSD language 8 s 2 32 000: English
    001: French
    002: Spanish
    Could be extended for more supported languages by model
    PIP-Mode 8 s 9 39 000: Off
    001: PIP(POP)
    002: PBP
    PIP-Sound select 8 s : 3A 000: Main
    001: Sub
    PIP-Position 8 s ; 3B 000: Up
    001: Down
    002: Left

    003: Right

    PIP-Input 8 s 7 37 *2.9

    000: TV
    001: AV
    002: S-Video
    003: YPbPr
    004: HDMI1
    014: HDMI2
    024: HDMI3
    034: HDMI4

    005: DVI
    006: VGA1
    016: VGA2
    026: VGA3

    007: Slot-in PC (OPS/SDM)/HDBT
    008: Internal memory
    009: DP/Type-C *3.2.4

    00A: Embedded/Main (Android)

    Value range is same as SET-Input select
    Tiling-Mode 8 s P 50 000: Off
    001: On
    (for video wall)
    Tiling-Compensation 8 s Q 51 000: Off
    001: On
    (for video wall) Bezel width compensation
    Tiling-H by V Monitors 8 s R 52 01x~09x: H
    0x1~0x9: V
    (for video wall) 1. 2nd digital for H monitors.

    2. 3rd digital for V monitors

    Tiling-Position 8 s S 53 001~025 (for video wall) Copy the screen of Position# to identified display
    Date: Year 8 s V 56 Y17~Y99 Last 2 digits
    (20)17~(20)99
    Date: Month 8 s V 56 M01~M12 2 digits
    Date: Day 8 s V 56 D01~D31 2 digits
    Time: Hour 8 s W 57 H00~H23 24-hr format. 2 digits.
    Time: Min 8 s W 57 M00~M59 2 digits
    Time: Sec 8 s W 57 S00~S59 2 digits
    Customized Hot Keys *3.2.6 8 s X 58

    001~999
    001: Open MVB Whiteboard *3.3.3
    002: Open MVB Display *3.3.3
    003: Open MVB Manager *3.3.3
    004: Open vCast *3.3.3
    005: Open Signage Launcher *3.3.3
    006: Open RevelDigital Player *3.3.3
    007: Open XiO Connected *3.3.3

    Function On_Off *3.3.2 8 s = 3D

    001: Backlight OFF
    101: Backlight ON
    002: Freeze OFF
    102: Freeze ON
    003: Touch OFF
    103: Touch ON

    NOTE:
    1. Tiling definition of H Monitors, V Monitors, and Position

    Tiling Definition

    2. Set Date example

    Date: 2017-3/15
    Send: 0x 38 30 31 73 56 59 31 37 0D (“Y17”)
    Send: 0x 38 30 31 73 56 4D 30 33 0D (“M03”)
    Send: 0x 38 30 31 73 56 44 31 35 0D (“D15”)

    3. Set Time example

    Time: 16:27:59
    Send: 0x 38 30 31 73 57 48 31 36 0D (“H16”)
    Send: 0x 38 30 31 73 57 4D 32 37 0D (“M27”)
    Send: 0x 38 30 31 73 57 53 35 39 0D (“S59”)

    Get-Function Listing

    The PC can interrogate the LFD for specific information. The Get-Function packet format consists of 9 bytes which is similar to the Set-Function packet structure. Note that the “Value” byte is always = 000.

    Get-Function Description

    Length Total Byte of Message excluding “CR”.
    TV/DS ID Identification for each of TV/DS (01~98; default is 01).
    Command Type

    Identify command type,
    “g” (0x67h) : Get Command
    “r” (0x72h) : Valid command Reply
    “-“ (0x2Dh) : Invalid command Reply

    Command Function command code: One byte ASCII code.
    Value [1~3] Three bytes ASCII that defines the value.
    CR 0x0D

    Get-Function Format

    Send: (Command Type=“g”)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5 6 7 8 9

    Reply: (Command Type="r" or "-")
    If the Command is valid, Command Type="r"

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5 6 7 8 9

    If the Command is NOT valid, Command Type="-"

    Name Length ID Command Type CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5

    Example 1: Get Brightness from TV-05 and this command is valid. The Brightness value is 67.

    Send (Hex Format)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Hex 0x38 0x30
    0x35
    0x67 0x62 0x30 0x30 0x30 0x0D

    Reply (Hex Format)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Hex 0x38 0x30
    0x35
    0x72 0x62 0x30 0x36 0x37 0x0D

    Example 2: Get Color from Display (#05), but the Color command is not supported by this model.

    Send (Hex Format)

    Name Length ID Command Type Command Value1 Value2 Value3 CR
    Hex 0x38 0x30
    0x35
    0x67 0x26 0x30 0x30 0x30 0x0D

    Reply (Hex Format)

    Name Length ID Command Type CR
    Hex 0x34 0x30
    0x35
    0x2D 0x0D

    Get-Function Table

    A. Basic Function

    Get Function Length ID Command Command Response Range Comments
    Type (ASCII) Code (ASCII) Code (Hex) (Three ASCII bytes)
    Get-Brightness 8 g b 62 000 ~ 100
    Get-Backlight *3.2.0 8 a B 42 000 ~ 100 1. For Android platform whose main mode is controlled by backlight and the other sources are controlled by brightness.
    2. Dervied from Color calibration. *3.2.0
    Get-Volume 8 g f 66 000 ~ 100
    Get-Mute 8 g g 67 000: OFF
    001: ON (muted)
    Get-Input select 8 g j 6A 000 ~ 100 1. 1st digit for signal dection: 0 means "no signal"; 1 means "signal detected".
    2. 2nd & 3rd digit: See Set-Function table.
    Get-Power status: ON/STBY 8 g l 6C 001: ON
    000: STBY
    Get-Remote control S g n 6E 000: Disable
    001: Enable
    002: Pass through
    Get RCU mode status
    Get-Power lock 8 g o 6F 000: Unlock
    001: Lock
    Get-Button lock 8 g p 70 000: Unlock
    001: Lock
    Get-Menu lock 8 g l 6C 000: Unlock
    001: Lock
    Get-ACK 8 g z 7A 000 This command is used to test the communication link.
    Get-Thermal 8 g 0 30 000~100: 0~+100 deg C
    -01~99: -1~99 deg C
    Get-Operation hour 8 g 1 31 000 1. Accumlated hours in 6-digit integer (000,001~999,999) *3.2.0
    2. Can not be reset when FW update and Factory initiation *3.2.2
    3. Reply in new 32-byte format *3.2.0
    Get-Device name 8 g 4 34 000 Reply in new 32-byte format *3.2.0
    Get-MAC address 8 g 5 35 000 (for models with LAN) Reply in new 32-byte format *3.2.0
    Get-IP address *3.2.0 8 g 6 36 000 (for models with LAN) Reply in new 32-byte format *3.2.0
    Get-Serial number *3.2.0 8 g 7 37 000 Reply in new 32-byte format *3.2.0
    Get-FW version *3.2.0 8 g 8 38 000 Reply in new 32-byte format *3.2.0

    NOTE:
    1. Get Operation Hour example
    Assumed the accumulated operation hour is 123,456 hrs

    Send: 0x 38 30 31 67 31 30 30 30 0D (Get Operation hour)
    Reply: 0x 32 30 31 72 31 31 32 33 34 35 36 00 00 … 00 00 0D

    2. Get Device Name example
    Assumed the device name is CDE-5500

    Send: 0x 38 30 31 67 34 30 30 30 0D (Get Device Name)
    Reply: 0x 32 30 31 72 34 43 44 45 2D 35 35 30 30 00 00 … 00 00 0D

    Assumed the device name is “NMP-302#1”

    Send: 0x 38 30 31 67 34 30 30 30 0D (Get Device Name)
    Reply: 0x 32 30 31 72 34 4E 4D 50 2D 33 30 32 23 31 00 00 …00 00 0D

    3. Get MAC address example
    Assumed the MAC address is 00:11:22:aa:bb:cc

    Send: 0x 38 30 31 67 35 30 30 30 0D (Get MAC add)
    Reply: 0x 32 30 31 72 35 30 30 31 31 32 32 61 61 62 62 63 63 00 00…00 00 0D

    4. Get IP address example
    Assumed the IP address is 192.168.100.2

    Send: 0x 38 30 31 67 36 30 30 30 0D (Get IP address)
    Reply: 0x 32 30 31 72 36 31 39 32 2E 31 36 38 2E 31 30 30 2E 32 00 00…00 000D

    5. Get Serial number example
    Assumed the Serial number is ABC180212345

    Send: 0x 38 30 31 67 37 30 30 30 0D (Get Serial number)
    Reply: 0x 32 30 31 72 37 41 42 43 31 38 30 32 31 32 33 34 35 00 00…00 00 0D

    6. Get FW version example
    Assumed the FW version is 3.02.001

    Send: 0x 38 30 31 67 38 30 30 30 0D (Get FW version)
    Reply: 0x 32 30 31 72 38 33 2E 30 32 2E 30 30 31 00 00…00 00 0D

    B. Optional Function

    Get Function Length ID Command Command Response Range Comments
    Type (ASCII) Code (ASCII) Code (Hex) (Three ASCII bytes)
    Get-Contrast 8 g a 61 000 ~ 100
    Get-Sharpness 8 g c 63 000 ~ 100
    Get-Color 8 g d 64 000 ~ 100
    Get-Tint 8 g e 65 000 ~ 100
    Get-Backlight On_Off *3.2.3 8 g h 68 000: OFF
    001: ON
    Keep both "Backlight On_Off" and "Function On_Off" for backward compatibility *3.3.2
    Get Freeze On_Off *3.2.5 8 g i 69 000: OFF
    001: ON
    Keep both "Freeze On_Off" and "Function On_Off" for backward compatibility *3.3.2
    Get-PIP mode 8 g t 74 000: OFF
    001: PIP (POP)
    002: PBP
    Get-PIP input 8 g u 75 000 ~ See "Set-Input select"
    Get-Tiling Mode 8 g v 76 000: OFF
    001: ON
    (for video wall)
    Get-Tiling Compensation 8 g w 77 000:OFF
    001: ON
    (for video wall) Bezel width compensation
    Get-Tiling H by V monitors 8 g x 78 01x~09x: H monitors
    0x1~0x9: V monitors
    (for video wall) 1. 2nd digital for H monitors
    2. 3rd digital for V monitors
    Get-Tiling position 8 g y 79 000: OFF
    001~025
    (for video wall) Copy the screen of Position# to identified display
    Get-Date: Year 8 g 2 32 Y00~Y00 Last two digits: (20)17~(20)99
    Get-Date: Month 8 g 2 32 M00~M00 2 digits
    Get-Date: Day 8 g 2 32 D00~D00 2 digits
    Get-Time: Hour 8 g 3 33 H00~H00 24-hr format. 2 digits
    Get-Time: Min 8 g 3 33 M00~M00 2 digits
    Get-Time: Sec 8 g 3 33 S00~S00 2 digits
    Get-Smart hub *3.3.0 8 g : 3A 000: all
    00A: Amb_Temp
    00B: Amb_Humidity
    00C: Amb_Light
    00D: Amb_PIR detection
    1. Reply in new 32-byte format. Each sub-item length is fixed 6 bytes. *3.3.0
    2. Allow get data separately or once for all. *3.3.0
    Get-Function On_Off *3.3.2 8 G = 3D 001: Backlight OFF
    101: Backlight ON
    002: Freeze OFF
    102: Freeze ON
    003: Touch OFF
    103: Touch ON

    NOTE:
    1. Get Date example
    Assumed the current date of display#01 as below:

    Date: 2017-3/15
    Send: 0x 38 30 31 67 32 59 30 30 0D (Get Date:Year)
    Reply: 0x 38 30 31 72 32 59 31 37 0D (“Y17”)
    Send: 0x 38 30 31 67 32 4D 30 30 0D (Get Date:Month)
    Reply: 0x 38 30 31 72 32 4D 30 33 0D (“M03”)
    Send: 0x 38 30 31 67 32 44 30 30 0D (Get Date:Day)
    Reply: 0x 38 30 31 72 32 44 31 35 0D (“D15”)

    2. Get Time example
    Assumed the current time of display#01 as below:

    Time: 16:27:59
    Send: 0x 38 30 31 67 33 48 30 30 0D (Get Time:Hour)
    Reply: 0x 38 30 31 72 33 48 31 36 0D (“H16”)
    Send: 0x 38 30 31 67 33 4D 30 30 0D (Get Time:Min)
    Reply: 0x 38 30 31 72 33 4D 32 37 0D (“M27”)
    Send: 0x 38 30 31 67 33 53 30 30 0D (Get Time:Sec)
    Reply: 0x 38 30 31 72 33 53 35 39 0D (“S59”)

    3. Get Smart hub example
    Assumed Amb_Temp is -5 deg C, Amb_Humidity is 30%, Amb_Light is 80, Amb_PIR detection is 1

    Send: 0x 38 30 31 67 3A 30 30 30 0D (Get all Smart hub info)
    Reply: 0x 32 30 31 72 3A 41 2D 30 35 2E 30 42 30 33 30 2E 30 43 30 30 30 38 30 44 30 30 30 30 31 00 00 00 0D (A-05.0B030.0C00080D00001)
    Send: 0x 38 30 31 67 3A 30 30 41 0D (Get Amb_Temp only)
    Reply: 0x 32 30 31 72 3A 41 2D 30 35 2E 30 00 00 …00 00 0D (A-05.0)

    C. Auto Reply *3.2.2

    The display will send out the updated data/status automatically without GET query from the host whenever the following data/status is changed by the user through any of the available ways like: remote control unit, front control panel keys, or touch screen.

    • Power On/Off
    • Input Select
    • Brightness
    • Backlight
    • Volume
    • Mute On/Off

    Remote Control Pass-through Mode

    When the PC sets the Display to Remote Control Pass through mode, the Display will send a 7-byte packet (followed by “CR”) in response to remote control unit (RCU) button activation.

    In this mode the RCU will have no effect on the Display function. For example: “Volume+” will not change the volume of the Display, but instead only send the “Volume+” code to the PC over the RS-232 port.

    IR Pass Through-Function format
    Reply: (Command Type="p")

    Name Length ID Command Type RCU Code1
    (MSB)
    RCU Code2
    (LSB)
    CR
    Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte
    Bytes Order 1 2~3 4 5 6 7

    Example 1: Remote Control Pass-through when “VOL+” key is pressed for Display (#5)
    Send (Hex Format)

    Name Length ID Command Type RCU Code1
    (MSB)
    RCU Code2
    (LSB)
    CR
    Hex 0x36 0x30
    0x35
    0x70 0x31 0x30 0x0D
    Key Code (HEX) Basic *3.1.1 Optional *3.1.1
    1 01 V
    2 02 V
    3 03 V
    4 04 V
    5 05 V
    6 06 V
    7 07 V
    8 08 V
    9 09 V
    0 0A V
    - 0B V
    RECALL (LAST) 0C V
    INFO (DISPLAY) 0D V
    0E
    ASPECT (ZOOM, SIZE) 0F V
    VOLUME UP (+) 10 V
    VOLUME DOWN (-) 11 V
    MUTE 12 V
    CHANNEL/PAGE UP (+)/BRIGHTNESS+ 13 V
    CHANNEL/PAGE DOWN(-)/BRIGHTNESS- 14 V
    POWER 15 V
    SOURCES (INPUTS) 16 V
    17
    18
    SLEEP 19 V
    MENU 1A V
    UP 1B V
    DOWN 1C V
    LEFT (-) 1D V
    RIGHT (+) 1E V
    OK (ENTER, SET) 1F V
    EXIT 20 V
    21
    22
    23
    24
    25
    26
    27
    28
    29
    2A
    2B
    RED (F1) 2C V
    GREEN (F2) 2D V
    YELLOW (F3) 2E V
    BLUE (F4) 2F V

    NOTE:
    1. This IR-pass-through code is different from the RCU key code.
    2. Special control sequence for POWER key under IR-pass through mode.
    2-1. When Display is OFF and receives the IR POWER code: Display will turn itself ON, then forward the POWER code to the host via RS-232.
    2-2. When Display is ON and receives the IR POWER code: Display will forward the POWER code to the host via RS-232, then turn OFF itself.
    2-3. When SET-POWER LOCK is enabled, the Display will not respond to POWER key pressing.
    3. The VOLUME UP and VOLUME DOWN code will repeatedly output when you press and hold the keys.