Basic RS-232C connection setup

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RS-232C Setup

You need a null-modem / cross-connect cable.

RS232C Setup.png

Non-standard connectors

Some models have a non-standard mini-usb connector for serial communication. Might be confusing at first, but it simply is RS-232. Here is the pinout as seen on the TV, cross wire RxD, TxD to a standard RS-232 cable.


Note about USB to Serial adaptors


In general we recommend linux operating system and ANY supported USB to Serial adaptor ( FTDI or Prolific PL2303 chipset based adaptors are known to work well under linux. You may consider to use a LiveCD distribution like Ubuntu ( or Knoppix ( if you don't want to install linux.


There are reports from users which got problems with some USB2Serial adaptors under Windows 7, so at the moment we recommend Windows XP for using USB2Serial adaptors.

Communication Parameters

  • Baud rate: 9600 or 115200 bps (varies for debug connection but is 115200 bps for bootloader access)
  • Data length: 8 bits
  • Parity: None
  • Stop bit: 1 bit
  • Communication code: ASCII code

Connection Test

  • Power on tv
  • go to 'Options' menu by using remote control and consider Set ID is set to 1
  • start terminal emulation program such as:
  • connect to tv's serial console with following connection parameters: 9600 or 115200 baud (on recent firmwares there's now 115200bps baudrate by default), 8N1, XON/XOFF
  • there is nothing echoed back from tv so far so you have to confirm you are correctly connected to the serial port by issuing a few of the commands documented in the appendix of the tv manual and see if you get feedback
  • you will not see what you type in but if connection is working tv will acknowledge your input after pressing <ENTER>.
 'ke 01 00' followed by <ENTER> volume mute on (volume off)
 'ke 01 01' followed by <ENTER> volume mute off (volume on)
 You should check your tv's user manual whether this command is the same for your model. First '01' in command matches configured Set ID here.