PT1 - OL

PT2 - OL

PT4 - variable, 10s-100s kOhms

PT5 - identical to whatever PT4 is at a given moment

PT6 - variable, 10s-100s kOhms, different from PT4

PT7, 9, 10 - identical to whatever PT6 is at a given moment

If "OL" = infinity, then according to the manual PT1, 2, 4, 5 are all normal. But PT 6, 7, 9, 10 are supposed to be infinity, and they are instead co-varying over time.

Thanks again for thinking about this problem - it is much appreciated.