Uturn audio-no sound

[Paul Birkeland]

Is there no earthing screw on the TT by the RCA jacks?

 

[aragorn723]

Unfortunately no, Uturn grounds internally.

Dave

 

[Paul Birkeland]

You may be able to lift the earthing connection in the little box on the TT with the RCA jacks, then feed that out to an external earthing wire/post.

This is how turntables were for decades before manufacturers tried to simplify them.

 

[galyons]

Are you not using the 4 pin sled that comes with the Maroon?  That ties the ground to the 4 pin wiring schema of modern cartridges and tonearms.  That should eliminate the need for additional wires, (better known as ground loops).  with everything wired as directed, check for continuity of ground and signal at the RCA jacks.

 

[aragorn723]

I'm using the 4 pin bracket.  The grounds are tied together for the middle 2 pins.  It seems like I'm getting closer to getting this thing playing, but it has been a journey.  Right now the only time I get hum is when the phono preamp is switched on.  The London uses a common ground, so I'm wondering if that is the issue, maybe it's not grounding well to the phono preamp?(Uturn audio uses an internal ground from the left rca cable iirc). 

Not sure i'm understanding the continuity test, so you're saying to disconnect the rcas from the jack and check continuity from there to each of the cartridge pins?

Dave