New stop -
found doors stalling out at mid point in open.
Uncoupled car doors,open appears to work ok. (seemed like pots OF and OS didn't react much) Checked mechanical resistances of car and hatch doors - not that bad.

Replaced board 104. Tuned up hatch door at top, new rollers, adjusted gibs, slides good. Have have only slight operator open improvement - on test. On auto doors still bogging down at half open. OF pot appears maxed out. (do need to replace flaky micro of CSDL) - never checked OSDL.

volts check out at 45VDC. Couldnt get a meaningfull voltage across R2.
Any one with ideas??