Re: Bell and Howell TQII 1652 16mm projector
I can't tell now whether that is 9V shown at pin 6 of the original frame wiring dwg and as per your measurement, or 0V which seems more sensible and in agreement with the new module.
Anyway, I've done a hasty redraw of the new module. As PJL says there must be a missing connection on your schematic from the regulator to the part of the rail shown connected to the opamp, which I have added.
THERE MAY BE ERRORS (either yours or mine) as I have not checked it and am now out of time to do so. Please compare back with the board itself..
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