FG 502 Adjustment and Possible New Issue


I’m trying to adjust my FG 502 to factory specs as per the manual.
So far there are a couple of things that have popped up as being of concern to me:

1- R170 (Sym) has absolutely no visible effect whatsoever.
2- C287 (Triangle Peak) has absolutely no visible effect either.
3- There is a -25mV DC bleeding when no DC offset is engaged.
4- When the switch is set to triangle, settings 10(-6) and .1 on the dial, this is what I see on a 466:


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