What do you mean? Display says "OSD ON" and no matter what I press it keep saying this. (until i hit osd button again)
I'm referring to the MANUAL, not the OSD on the faceplate. If the Master Setup Menu chart in the MANUAL reads as I previously posted, get back to me. We'll count clicks. If for some unknown reason you don't have the 520 MANUAL you can download it from Harman...Come to think of it, I should do this as well so we won't be talking past each other. (I own the 510)
No, you won't see the OSD change to the next menu you enter...the faceplate display does change when you use a direct function button surrounding the navigator ring...so you'll just have to get the clicks right. It always defaults to the top of any menu list so the first step after hitting OSD is to count 2 clicks down...press set...now you're in the speaker setup menu...6 clicks down and you're good to go...press set and you will be in the X-over frequency selection line. There is no way of knowing without a TV hookup what setting is being applied so you'll have to experiment with the sound. It can only be 1 of 2 depending on how your speaker selection is set-up. I assume you already know how to change a selection and how to get out of any menu should you lose track of where you are. Study the manual menu charts till you know them like the back of your hand. After awhile, it becomes easy. I do this myself when I've turned off the center display. Good Luck.
Are you sure you really need changing crossover frequency? I mean, this setting is related to physical characteristics of your speakers, which don't change. I would set it once to the frequency where your mains start to roll off, and then just adjust the sub level to you liking. The level is memorized and also can be changed easily with the remote.