The PRONTO code you provided from www.remotecentral.com is NOT an NEC code.
Whilst it may appear to be an NEC protocol, all NEC protocol timing must have a start bit of 9 millisecond followed by a pause of 4.5 milli seconds +- 10% This pronto code decodes to a start pulse of 4.472 milli-second pulse, so not valid.
The NEC protocol format and timing is as below
After doing a little research I have found that Samsung use many different codes including NEC code. So far I have found 12 different protocols used by Samsung and one of the most common appears to be a protocol used by "PURE" the makers of DAB radios.
Also, be careful about some Pronto codes placed on www.remotecentral.com as many are invalid codes.
Out of the Samsung units which do use the NEC code, they use HEX address 04FB and command for power of 08F7
I also found several units which use Philip RC5 protocol which used the default address of 0 and power comand code of 12
Given that Samsung seems to use many different codes I suggest you capture the power code from your remote or get someone with the same model to do it for you. With the capture information then an XML file can be produced.