Hi all,
I have never had my hands on a real GPS500, etc.... is the concentric switch unit on the lower right corner a dual rotary encoder or a dual concentric 2-way rotary switch. To me it looks like a twist-and-hold to scroll one dir, twist-and-hold the other dir to scroll the other direction.... Looks like something you could functionaly replicate with 4 seperate pushbuttons, but I would rather find out and use the right part, or use a dual encoder...
Thanks,
BuddyM