Correct Way to Connect an EQ in my Hifi System ?

Tommy, I have looked at the manual and read some blurbs on the Marantz. I would contact Marantz technical support. I do not think this has the typical " tape monitor " loop as yesteryear, this is why I suggest contacting them. A true tape monitor loop, as mentioned above, would give you the ability to monitor, and compare, the source being recorded, before and after, during the recording process ( a three head tape deck would have been necessary ). A tape monitor circuit ( button ) would need to override the source, enabling them to work, together, as opposed to instead of. To route the tt into the eq, you would require a separate phono section from tt before the eq. Hope it works out for you. Enjoy ! MrD.

Yes, you need a phono stage first.
That’s what I said earlier.
Thanks @mrdecibel ,, bummer that it’s not like a processing loop.
I'll think about this some more.

a separate phono section / phono stage ?   ....Please deliberate , Thanks guys !

Tape Recorder 1 Out > In to EQ
Tape Recorder 1 In > Out of EQ
Turned Selector to Recorder 1 and turned on TT w LP - got nothing

I think you should turn the input selector to TT, and push "rec out" button on the PM11S1 front panel to use the EQ.

imhififan, that should do it, if it loops it. Enjoy ! MrD.