They most likely don't exist. That's the Sharp way. Otherwise, just try all 256, then you'll know for sure. Only takes about 15 minutes on a JP1 remote ($3 on ebay), or generate all 256 pronto hex codes with IRScrutinizer.
If you do go on a hunting expedition, just avoid the Evil K codes:
[Link: hifi-remote.com]
Last edited by mdavej on October 28, 2015 12:31.