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Turntable issue

I haven't had much luck finding an answer to this question so hopefully it's not something that's been asked a thousand times.

Yesterday I turn my preamp on, place a record on the player and I can hear every touch of the tonearm I make. It clicks when lifting it out of its resting position and when I screw or unscrew the record clamp this at is also very audible through my speakers. Also I'm now hearing a hum that was never present before.

I understand that the cartridge picks up vibrations and turns them to sound but this has never been something that was clearly audible before. I'v never heard siuns coming from my speakers when screwing the clamp on our off.

Thanks for any responses.

MMF 5.1SE
Project Tube Box S
jsouth72
zd542
5,339 posts
 
You need to list your entire system and any changes. Make sure you didn't plug your phone pre into a phono input on your preamp.
mofimadness's avatar
mofimadness
5,255 posts
 
Sounds like a ground has come off or broken somewhere.
Could be as easy as the ground from the tonearm to the
phono stage, or worse, a broken ground inside the arm-
tube.

It could maybe a bad tube in your Phono Box S or a tube
that is starting to go.

Also, you should always mute or turn the volume all the
way down before you do anything with a turntable.
czarivey
5,946 posts
 
You can do a simple trick:
use tape to attach any wire to the base of tonearm and connect it to the ground pin of your preamp.
If problem disappears, than ground wire is relatively easy to replace compared to the signal wires. The ground wire usually connects outside of the armtube, than goes through the hole and than out to preamp. The only trick is not to loose proper horizontal bearing tension if it needs to be removed.
If you want to communicate further, you can e-mail me.
I repair various turntables daily and restore them to original fully operational condition.
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