Power On, 'Smart TV' logo, screen goes black, standby LED goes dark, and then it does it again 5 or so seconds later. I am now receiving strings back from the display on my receive pin, but the display itself basically in a constant power cycle. It was set at UART and so I decided to try the next one on the list, logic. I found a setting within the Samsung service menu for the rs232 port. The issue here is that I have been fighting with a Samsung HG55NE690 display coming off of the com port of a DM-RMC-4K-100-C.Īfter hours of trying to gain any control (flipping tx and rx pins, new receivers, different displays, different baud rates, etc.), I have finally found the issue. Systems Architect | Crestron Certified Master Programmer (Diamond)ĭirect: (+1)440.771.4807 | Cleveland: (+1)440.449.1100 | Boston: (+1)508.695.0188 | DC: (+1)202.381.9070 | Fax: (+1) know this is getting past the point of being a Crestron issue, but you all know more about manufacturer issues than anyone I can talk to at consumer brand tech support.

98% of the time they’re either looking at something completely different, providing an alternate Things remotely but when have to and things aren’t making sense I’ll ask for pictures to make sure what the tech is looking is what I actually asked them to look at. The official Samsung cableĮven has a little warning sticker about this.īeyond that see if you can get the tech to send you pictures of the disply showing that it is set for 232 and not network and which ID it is set for. Some Samsungs require an extra (firm) little push to get it the last little bit in.

Really easy do get in the wrong place if you’re reaching your hand under a display on a fixed mount or just moving too quicklyĢ- Make sure they’re on the MDC IN and not the MDC out – not all Samsungs that speak MDC have an out jack but on those that do the out is sometimes moreģ- Make sure the connector is fully seated. To clear the stupid questions (that I’ve had techs do with Samsung in the past month though not sure if it was a QMġ- Make sure they’re actually plugging into the MDC IN jack, not the audio in that is also an 1/8” jack and on some displays right next to MDC IN (e.g.

Samsung qm49 rs232 commands