Display Express TV Guide


This blog is dedicated to all those who use Display Express systems to control TVs. Here, we’ll summarize the “controllability” status of popular makes of TVs, and we will update new facts and gotchas as we discover them. For example, a few sets need to be set in in a special mode, or an energy-saving mode needs to be turned off for RS-232 commands to operate. You’ll notice there is some flux in control and features in the industry, so feel free to contact CR Support when you’re planning an install – we are happy to research makes and models.


LG control code is one of the best, our current code can lock and unlock TVs, as well as select inputs. If you select an input, send a TV input command to return to the current channel – sending channel command won’t switch to the tuner automatically.

LG sets will lose the lock state when power is lost. Our ICC1-232 controllers will automatically restore the lock and power state when power is restored to the controller and TV. If the TV was off when power was lost, it will keep the TV off until it receives a power on command, and will restore the locked state.

LG Consumer TVs Have RS-232 Control Again!

New LG consumer TVs have brought back the RS-232 port that has been missing for a few years. Sets with the port will show an RS-232 mini-jack when you click Tech Specs on the product page. The new port is found primarily on new Web OS TV in sizes 32” and up. Models with the port include:

UH 610 and 616
UH 6030 – 9500
LH 700, 570A
LF 595B
LF 5300 – 6350
LH 570A, 700
LH 5700, 5730, 5750

Note that the port is non-standard; the TX and RX connections are reversed from our standard CC-COM 3.5 – when you order the CC-COM 3.5 for these models, we will include an adapter that fixes the issue.  If you are making your own, the stereo plug need to be wired as follows:

Tip – TX
Ring – RX
Sleeve – GND

Commercial TVs with DB9 RS-232 Port

So far, all Commercial sets have a standard DB9 RS-232 port. The latest list of RS-232 controlled TVs can be found at LG Public Display TVs including 4K models. The new SuperSign TVs (replacing the previous EZ Sign models) all have DB9 RS-232 ports.

Previous Models:

CL10, CL11, CL20
LF11, LF 21
LH20, LH30, LH40, LH60, LH200C

Current Models

LW- 340C
LY- 340C
LX-330C, 341C

NEC Commercial TVs

Now there are two types of TVs supplied by NEC.

  • E-Series. (Click on E-Series link on bottom left to filter for those models) Value-priced TVs with RS-232 control. Here’s a list of models (note that NEC often introduces more than listed here:
    • E323, E423, E424, E462, E463 , E464CR Type 14 codes, DB9 RS-232
    • E705, 805, 905 Type 14 codes, DB9 RS-232
    • E705-AVT, 805-AVT, 905-AVT CR Type 51 codes, DB9 RS-232
    • E325, 425, E505, E585, E654, E655 CR Type 14 codes, DB9 RS-232
  • P, X, and V Models with the plug-in AVT tuner Use the link above, select links to filter for those models – take note of models the use a -AVT suffix that includes the tuner.
    —M401, 461, 521 – P401, 402, 461, 462, 501, 521, 552, 701, 702 – V422, 462, 551, 651

There are three different codes sets for E-Series with onboard tuner, E-Series with AVT tuner, and the P.X. and V models.


Most Panasonic sets use IR control that supports discrete power and inputs.

Hospitality TVs

These sets typically have RS-232 control. The LRU and LRG series TVs support RS-232 control using the CC-COM 3.5 cable with mini jack.

Samsung TVs 

At website linked above, At Filter By, select TVs with Built-in Tuner.

For most consumer Samsung TVs, use IR control, supports discrete power and input control with few exceptions.The UN40H5003 model arrived with no discrete power commands, but Samsung has a firmware update for that series.


Most commercial displays have RS-232 control, including:

Current Models:

DB-E series Mini RS-232
DC-E Series Mini RS-232
DH-E series Mini RS-232
DM-E series Mini RS-232
RM40, RM48 Signage TVs – Ex-Link
H32B, H40B, H46B
PE-C series Mini-RS-232

Older models:

DM45D, DM55D, DM65D Mini RS-232
MD32B, MD40B, MD-46B, MD55B (DB9 RS-232)
ME40A, ME46A, ME55A, ME65B ME75B (Mini RS-232 and ME models do not lock out IR control)

The sets can be controlled via IP, however you can’t turn them on once they are turned off.

Note that, at least for the ME series, there are two adapter cables – the one you want is part# BN39-01545B – the other adapter ending in “A” if for the RS-232 out to link to the next TV. Since customers have usually lost those adapters, or Samsung forgets to include them, we have our own cable, CC-COM 3.5, that will directly connect the TV to the ICC1-232.

Some sets many need to have the RS-232 port turned on from a service menu. Turn the set off, then use the IR remote sequence “Mute 1 8 2 Power” to access the menus. I

There are also advanced commands that can select the Media player as an input. Note that the content has to be saved to the onboard media player for playback.

Ex-Link TVs

You may run across a few consumer sets with Ex-Link RS-232 control, which is a different command set from other Samsung sets, the caveat being that the format  cannot  tune a major or minor channel ID higher than 63, it does not support channels 64 and over. The feature is not shown in specs, you have to dig through the manuals to find the feature.

Our new Samsung Ex-Link code type 64 works with sets with a physical Ex-Link mini-jack and USB adapter (Crestron/AMX programmers – new code has no delay between characters).

To activate, when the TV is off, send Mute, 1, 8, 2, power quickly for the Service menu. The center direction button selects option, then Left, Right selects parameter. Select Option, then Sub Option, then RS-232 Jack to UART, and UART Enable On. Sets we’ve documented: UN55D7000 UN55ES6100 and the TH310S 24″ TV.

For the commercial MU8000 and above models that feature an ExLink input, use the same Service menu with similar but slightly different selections. 

The older MU6000 and MU7000 series can use an Ex-Link to USB adapter (supplied free from the distributor) with a more complex series of setup menus; download the  2017 USB Serial Control and MU6 MU7 Activation Instructions. 


As of August 1, 2015, Sharp announced  that it is leaving the US TV market, as they did in Europe last year. The name is sold to Hisense in China.. Dealers are reporting that new Sharps are arriving without RS-232 or discrete IR commands. 

All (made by Sharp) TVs can be controlled by the ICC1-IR, with discrete power and input control. Sharp has been expanding the number of sets with RS-232 control and can use the ICC1-232, the latest command set allows DX-format input selects. For example, sending a channel command of 0-211 will select HDMI1, 0-200 will return the TV to the tuner.

Sharp RS-232 Control Bugs

While the Sharp RS-232 protocol generally works well, there are several known issues with how the sets perform.

Sets will turn off from an RS-232 OFF command, but won’t turn on

Sharp sets are shipped in an Energy Star mode that turns off the RS-232 port when the TV is off – so it’s not listening when you send an ON commands. We have a fix for this built into our Sharp control command for ON – use this sequence to fix the issue:

  • Send an OFF command through the Display Express system, using our software, our IC Send app, or your control system
  • Manually turn the Sharp TV(s) on
  • Send an ON command through the DX system. Along with the ON command, we send a command that enables full-time RS-232 operation

TVs refuse to activate the RS-232 from the standard ON command

Sharp tech support warns that there may be sets that don’t respond to the command that we (as well as AMX and Crestron) send to enable the port. In this case, you will need the SERVICE manual for that specific model and serial #. That will include the hidden menus you will need to access to fix the problem.  We have a PDF we’ve put together showing how the typical Sharp Public Mode setup is performed, but your set could need a different sequence.

TVs have a problem accessing XXX-1 channels

This bug pops up frequently. The symptom is that, when you watch the TV’s on-screen feedback, the tuner will show the correct channel, attempts to change the channel, but snaps back to the previous channel. This only happens with -1 channels; channels that have a -2 and above minor channel will work fine. The problem is frequent enough that we have a fix for this in our Sharp code:

  • In Display Express software, send a Special Command with the text “H9,1” to the affected Sharp sets
  • In IC Send, use an H9 in the first field, 1 in the second, and the device # or Zone, then Send the command
  • Send the H9,1 command from your control software
  • If all the Sharps in system have this issue, send the command to All controllers (4095) – only controllers with Sharp protocol will be affected


Most Sony sets are IR-controlled, and our Sony code features discrete on/off and input selects, but there are models with RS-232 control and QAM tuners.

Pro Bravia TVs

While these are called displays, when you drill down in the specs, they have tuners and RS-232 control, using the CC-COM 3.5mm control cable. The TVs marked with “*” have RS-232, but do not document a tuner, but Sony does not provide complete specs. 

However the new Andriod-powered TVs have serious RS-232 issues, responding erratically to commands. If you have a mixed analog/digital system, the TVs don’t respond to an XXX-0 channel command for analog channels (a standard notation for analog channels since the digital era began). You will need to use a special menu to activate the RS-232 port (at first menu, use IR remote to select Display, Vol +, mute, and Home. Go to Hotel/Pro and turn on Hotel mode). Not sure when Sony has a fix for this. 

FWD65X750D, FWD65X850E, FWD75X850E, FWD85X850D, FWD55X700D
FWD43X800E*, FWD49X800E*

XBR-43-49-55X800E – equvalent consumer TVs 


There are two Hospitality TVs that have RS-232 (the /92 suffix adds RS-232, standard DB9 connector):



At this point, all the models have been Sharp TVs with RS-232. If you’re using this brand, we’ll be happy to cross-check the the ones you’re using for your install.


All models we’ve seen so far use the same RS-232 codes (we have them) and use the CC-COM 3.5 cable. The short cable with a mini-jack has a male DB9 that plugs right into the ICC1-232 controller.


Just when we lose Sharp as a supplier of RS-232 controlled TVs, another takes it’s place! Suddenly, there’s a whole new choice for commercial TVs. There are a number of models, with sizes up to 65″. Some new features as well, with “hospitality” control for settings and inputs, as well as daisy-chain RS-232 and IR control. We have control codes for our RS-232 TV controllers on file.

The current model series are CDE, CDP, CDX, and VT. Click the Viewsonic link above and check ’em out!


We have a full set of IR commands for Visio TVs that includes discrete power and input commands. We’re not sure all Visio sets have discrete power, especially smaller sets.


At present, only 32-50″ E-series TVs have tuners, while all D-series TVs have tuners. P- and M- series displays do not have tuners.