Hi I am trying to control either a samsung me55c or me46c using rs-232 and real-term. Totally new to this (im an installer, but not a programmer) I have read the manual and got the codes. I purchased a 5v usb serial FTDI cable from here;

[Link: dontronics-shop.com]

I have connected to the rs-232 port in on the display. I have set;
baud, 9600
parity none
data 8bits
stop bits 1
flow control none.

I opened up the port and nothing happened when i sent the following command
"0xAA,0x11,0xFF,0x01,0x01,0x11"

Which should turn power on. Only the tx was lighting up in the rhs of real term. I swapped the tx and rx around on my cable and now whenever I send a command it strips out the "0x" and spits it back to me, but does nothing. The tx and rx light up now.

I have entered service menu and made sure rs-232 is on uart. I have also tried setting it on debug with no different response.

What am i missing?

Any help would be greatly appreciated!!


EDIT:Found the problem. I was using a 5v logic level cable. Samsung rs-232 is full voltage rs232. Used a different rs232 cable and adaptors and it all works great now.

Is the port on the back labeled service or labeled anynet?

I had the same problem with a me65 - i changed the ID from FF to FE and it works.

Or use the correct checksum...

0xAA,0x11,0xFF,0x01,0x01,0x12

Hi, thank you for your answers. Sorry about my slow reply, got pulled in a million directions at once this week. the me55 is a commercial panel so it has rs-232c in and out. The port is labelled as rs-232 in. i have also tried in the port labelled rs-232c out. No love. I realised afterwards I got the checksum wrong, thank you for the correction. Unfortunately I still am not getting anything. Im thinking it might be worthwhile trying a different program. Im using using realterm at the moment. any other suggestions to test commands?