Hello ev’ryone,
I’m new to Moog Music Forum and glad to be here!
Some days ago I purchased a 2nd hand Minimoog Voyager Rack Mount Edition (RME). To adjust the filter tracking (it was just “out of tune”), I opened the Voyager carefully. The adjustment of the filter tracking was easy and successful.
What I was wondering for were two trim pots inside the Voyager RME. The first trim pot seems to be soldered onto a resistor:
And the second is just not in place. Or better: there is no RP1 at all. 
The soldering spots are unused.
Can you explain the meaning of these strange trim pots? 
Thank you and best regards from Berlin
Robert!