Model numbers are good - I see now what you’ve got.
You want to go from the REC OUT jacks on the back of the unit into the line input on your Mac. That should work fine. The unit is obviously solid state and since you’re getting it serviced there should be no problem.
So you have separate stylii or is it the “flip-over” style?
Have a look at these tutorials:
http://manual.audacityteam.org/man/Tutorial_-_Copying_tapes,_LPs_or_minidiscs_to_CD
http://manual.audacityteam.org/man/Recording_78rpm_records
and this thread on the forum:
https://forum.audacityteam.org/t/click-pop-removal-clickrepair-software/1933/1
– Bill