According to
[Link: anycities.com] which is the best site around for Sony infomation, Sony12 device=121 is the second room device number so if it responds to discrete On and Off it is likely to be these two commands:
Device Code: 121 Function: 46 - On
0000 0068 0000 0010 0060 0018 0018 0018 0030 0018 0030 0018 0030 0018 0018 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0030 0018 0030 0018 0030 0018 0030 0018 0018 02FD
Device Code: 121 Function: 47-Off
0000 0068 0000 0010 0060 0018 0030 0018 0030 0018 0030 0018 0030 0018 0018 0018 0030 0018 0018 0018 0030 0018 0018 0018 0018 0018 0030 0018 0030 0018 0030 0018 0030 0018 0018 02E5
Please let me know if these work. Also should these not work but it has a power toggle would you learn it and post it.
-Jon