All the CCF files for InFocus that I could find use NEC protocol.

I answered in this thread assuming Kas1 was correct that the pdf he linked to is the correct file for his model. That pdf definitely does not doescribe NEC signals and definitely does describe RCA signals.

If Kas1 discovers he might have been wrong about which pdf file has the signals for his model, then the more common Infocus NEC signals would be a good thing to try.