Question about LG LST-4200A DTV Receiver

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How to remove LG LST-4100A

Hey guys,

Got an LG LCD donated to me and it has a LST-4100A attached to it. I want to remove it (if possible) so I can have normal functionality to all of the other inputs without the extra unit attached. Anyone know how to do this. I do have the remote if that is needed.

Thanks!

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  • mados123 Dec 22, 2008

    Thanks Tom for the quick reply.  It is connected to the RS232 service jack on the TV and via what looks like a DB9.  I tried just disconnecting it before but then the tv, when turned off then on, loses all functionality.  I believe the LG is in a specific mode that requires the LST for now.  It needs to be told not to look for the LST but that is something I don't know how to do.

  • mados123 Dec 22, 2008

    I talked to an A/V specialist, referred by a friend, and was able to reset the box.  In doing so, I got back the functionality to all of my sources.  He did warn me that if we play around with the codes (to reset the TV so it isn't dependant on the LST), it is possible to mess up the TV's software.  He also said that for the 3 cents/month of the electricity used, it is not worth the risk.  I believe I just held down the 2 buttons on the top of the box (reset & update) at the same time and was good to go.  Thanks again!     

  • mados123 Mar 03, 2009

    Thanks guys for the suggestions. I actually sold the TV recently and didn't get to apply your suggestions but because the both of you suggested similar actions, I gave you both a FixYa assuming it would work.

  • Anonymous Mar 16, 2014

    got an lg tv from hotel tv only comes on when i plug socket and i cant control anything with remote or side of tv do i need to hook up tuner box to get fuctions

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To remove the LST-4100A commercial control interface from the television you need to follow the commands below.

1. Power on television.
2. Press and hold "MENU" for 10-15 seconds.
3. Quickly press "2-6-6-3" and then press "ENTER"

If you have done everything properly, it will bring up a small menu in the top left hand corner of the television. Kind of a hidden menu.

4. Arrow down to the menu option that says "D Box" and turn the option to "OFF".

Now turn off television and completely disconnect the LST-4100A. In fact, throw it away. In the trash is where it belongs.

Your television will now operate like a normal television purchased from a big box store. You should run an automatic programming setup for grins upon completing.

Enjoy your new NON-commercial lcd television.

Posted on Jan 21, 2009

  • sleepy_user
    sleepy_user Jan 21, 2009

    Forgot to mention. If you would like to keep the LST-4100A box on the back of the television you can access the "installer menu" by using the following sequence.



    1. Press the "MENU" button repeatedly (press... press...press... etc.) until the on screen menu stops responding.

    2. Enter "9-8-7-6" for the generic password.



    You will now have access to the installers menu. This will allow you to program channels, turn on and off different inputs....etc.



    Here is the manual for the installers menu.



    Enjoy

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I don't know if you figured it out yet but the easist way to do away with the box is to remove all cables. Then hold the menu button down until the menu dissappears, enter 2663 and press enter. A small menu box will appear in the left corner. Go down to where it says D box, switch this to off and now the TV will do whatever a residential model does

Posted on Mar 03, 2009

  • Carol Smith Sep 04, 2015

    I have tried this but I do not have the orig. remote (problem?) and when I get the menu, it does not have the D Box option at all. Any suggestions?

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LG-4100A controler box problem. i can access the installer menu without issue as outlined on page 19 of 22lq630h-commercial-mode-setup-guide.pdf. however the DBOX option is NOT in that menu on a LG 42PX3DBV. is there a second hidden menu beside the one covered in the above mentioned pdf? (which also makes no mention of a DBOX option)

Posted on Dec 25, 2013

  • Carol Smith Sep 04, 2015

    It isn't an option on a LG32LX4DCS either. I too am looking for a solution.

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I have this and it only shows black and white. What did I do wrong

Posted on Nov 29, 2015

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I was having this same problem, in which the remote controls wouldn't work without the control box connected, but the factory reset wouldn't work with the box connected.

Here is what worked for me:

LG 32LX4DCS TVs with attached LG LST-4100A control box.

1. On the LST-4100A box, there is a black, removable card with an F-connector (Cable In) and a RJ-11 (Data). Unscrew the two retaining screws and remove this card. There is an antenna-type connector on the inside that will need to be disconnected from the card.

2. Connect the control box to the TV via the serial cable (Display Control).

3. Plug in power cables to TV and control box. Turn on TV.

4. There are two lights on the control box. Make sure the "Power" light is on solid and the "Status" light is flashing quickly. If not, cycle power on both the TV and the control box.

5. Press "Menu" and hold the button until the menu disappears.

6. Quickly, press "2 6 6 3" then press "Enter". A small menu should open in the upper left.

7. Scroll down to "DBox". Change to "Off". TV will restart.

8. Disconnect the serial cable from the TV. The remote controls should now work normally with the control box disconnected.

Posted on Jun 03, 2015

  • Anonymous Jul 22, 2015

    this totally worked thanks

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I was having the same problem with a unit that had the Control Box attached with "Cable Security Sleeves" -- those little rotating metal thingies that prevent you from unhooking the F-connectors.

The 3-3-2-6 trick worked like a charm. I hooked up a digital antenna to the Cable In port on the controller box, and now I don't have to remove the evul controller box.

BTW, LG Commercial Support told me the above was impossible to do.

Posted on Apr 19, 2013

  • zahnprod
    zahnprod Apr 21, 2013

    I meant 2-6-6-3 of course, not 3-3-2-6

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II HAVE A LG32LY4DC WITH A LG-4100A CONTROL BOX HOW CAN I REMOVE THE BOX I TRIED THE CODE 2663 PLEASE HELP

Posted on May 17, 2010

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What is it attached to? and how? if it is just attached by cables just detach them.

tom

Posted on Dec 22, 2008

  • Thomas Dec 22, 2008

    wher are you from?if from the u.s.a. then i suggest talking to a licensed tech. for more support then what you will get here.



    tom

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