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Sutherland PhD Issues

I'm starting this thread up again here in the analog forum, rather than pre-amp to garner more folk's input about this issue, in which a friend 1/2 way around the world is having.

He notes that he is still having issues with auto-shut down with his Unit, and that when he unplugs phono cables from the Unit, only then will it go to sleep.

His Cartridge is the Sumiko Bluepoint 2. My question is, doesn't this sound like it could perhaps be an issue with the Cartridge itself, or perhaps Tone-Arm-Phono Cabling? Could these components still be sending signal to the Sutherland, even while not being used?

Neil, and you other good folks here, your input would be deeply appreciated, and desired, thank you, Mark
markd51
tarsando
578 posts
 
WRT why expect other components to be the cause--the most natural first assumption is the assumption he made--the thing is supposed to sense a signal, maybe there IS a signal. Does it happen with nothing connected? No. Your suggestion about where to disconnect makes sense too.
markd51 OP
763 posts
 
Thank you folks.
As I have earlier explained, the Unit does apparently shut down without Phono Cables being hooked to the Unit, so this is what sounds strange to me?

As Tarsando states, this could possibly be a cause of RFI, maybe due to a poory shielded Cable, faulty Roneram, or Cable Wiring, or I even thought a fault in the Sumiko Bluepoint 2 Cartridge itself?

Is it possible for the Bluepoint (or any other MC Cartridge) to be emitting some signal while it is not in play, and the entire system is shut off?

Perhaps a dumb question, I know, but I reckon if one doesn't know, then asking is not perhaps so dumb after all.

Yes, Chad at Acoustic Sounds has responded to my queries, but gives pretty much the standard procedure of making adjustments to the Sentry Pot, and this has been tried to no avail. Mark
markd51 OP
763 posts
 
Geesh!!!
I'm very sorry folks for my typos in my last response.
I'm a superb speller, but a poor typer at times.

That should've read "A poorly shielded Cable", and/or "Faulty Tonearm, or Cable Wiring".

And as I had first suspected, a faulty Sentry Potentiometer on the Sutherland PhD. No doubt a $3 part on a $3,000 Unit, which could easily go awry.

Maybe a "miracle shot" of DeOxIt might do the trick?
It wouldn't be the first time, DeOxIt had come to the rescue! lol This stuff saved my own Cal Delta Transport a few months back! Mark
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
Mark
Many thanks to you and the others on this thread. It was a RFI problem. I replaced the phono cable from the TTie Clearaudio Emotion with a Cardas Golden Cross and viola the Phd has started shutting off even with the CDP playing. Something that never happened earlier.
Many thanks for all the help and support.
Cheers
piedpiper
753 posts
 
Congrats! I wonder if that's often a problem with the Emotion and Phd.
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