I have been successfull deriving the code needed for input-8/Component on my Sharp Aquos LC-52X20E. How:
Take Makehex (here in the file service) and geneerate for Sharp the complete codebase for Fuction 17. (all 255). Use IR-Panel (can like Makehex be found in the files section) to create a .CCF to be downloaded in your pronto.
Now in order not to go through all of them I tested some of those functions named above - and --- they worked. Next step was to try out a possible code. I tried something that appeared logic.
Finally after only several qualified guestimates it is:
Thanks to this forum for the tools and the ideas in it. Originally I hoped that someone "out there" had the answer easily for me, aparently not, so I had to go through it the hard way.