Hi,
Connect a source.
Put barco on.
Play some movie for about 30minutes to let it all warm up.
Push 'adj' on remote.
Choose "random access" and 'enter'
Choose "genlocked pattern" and 'enter'
Choose "convergence"
After adjusting press exit till you've left all menus, it will be saved automatically.
That's how it is on my D808s.
Since you're asking this question, i suggest you better start with "guided" instead of "random access". The guided tour takes about 45minutes or so, and after that you know pretty well how to adjust your barco.
good luck