It depends on the version of OBX you have.
1) If you have 5 big switches, the three on the right are used to tell the OBX how many voice cards to use (typically 4,6 or 8, but I have my running on 7). The two on the left or for "testing", and I think one of them disables auto-tune, but I am not certain. The other switch I have never been able to figure out. (Anyone know )

2)If you have a bunch of small dip switches - these turn on/off voices individually. If there are more than 8, I don't know what the extras do.

That is the most I can help. Hopefully someone else can fill in the details.

--- In oberheim@yahoogroups.com , "jahg88" <jahg88@...> wrote:
>
> Hi all.Can anyone tell me what the switches on the inside left side that are visible when you open up the top
> Thanks
> Jim
>