Sunday, 1 July 2018

Technics SL-d30 Ground Wire Installation

Technics SL-d30 Ground Wire Installation

After building an amp for our house record player, you could only play-back record with an annoyingly loud hum; a grounding problem, in that it wasn't grounded from the player to the amp.

A quick search online found someone else who'd had the exact same problem;

https://audio44.wordpress.com/2014/03/10/ground-wire-for-technics-turntable/

It was also a good time to clean out some of the 30 year old dust that had accumulated.



The Black cable is the ground wire.




















Make sure it has a good connection




















Connecting it to the amp





















Running the cable out the back of the Record Deck
Record Player PCB





Might as well give it a dust while it's open




We can now listen to hum-free music!





2 comments:

  1. Hello there!

    I have the same Technics SL d-30 silver model, and I have the same problems with humming noise. I did the grounding the same way you explained here, connecting the ground wire to the phono preamp Behringer PP 400 ground point but the humm is still there..not as loud as it was before... can you please help me with an advice how to solve this issue?
    many thanks!

    Florin

    ReplyDelete
    Replies
    1. Hmm I can't think why really. It would be worth trying another plug socket just so you can rule that out

      Delete

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