Do you have a separate, external phono preamp or do you have a preamp that has a built-in phono stage? If the former, connect the turntable's output cable to the external phono preamp (there are 2 RCA plugs and one small spade -- the small spade screws into the grounding screw on the phono preamp) and then connect the phono preamp to a line-level (ie, any input in the preamp EXCEPT "phono" -- AUX makes a good choice) input.
If the latter (your preamp has a built-in phono stage), then connect the turntable's cable to the PHONO input on the preamp, and screw the ground wire to the grounding screw on the preamp.
Either way, the ground wire should be connected.
Hope that helps.
Michael
If the latter (your preamp has a built-in phono stage), then connect the turntable's cable to the PHONO input on the preamp, and screw the ground wire to the grounding screw on the preamp.
Either way, the ground wire should be connected.
Hope that helps.
Michael