Posted by KevinC (M) on April 06, 2007 at 06:10:44

In Reply to: Major hum on LL9206 posted by Noam on April 6, 2007 at 05:45:35:

Connect the shell of the RCA input jack to that of the output for each channel and I suspect that your hum will go away. If the tonearm cable is two conductor coaxial cable, the shield needs a ground connection to act as a shield and it can get that from the phono preamp through the shield of the cable feeding the phono preamp from the step-up transformer.

Kevin Carter
K&K Audio
www.kandkaudio.com

• Got it solved - Noam 18:54:58 04/06/07 (1)
  In Reply to: Re: Major hum on LL9206 posted by KevinC on April 6, 2007 at 06:10:44:

  Some of the pins weren't soldered. Old age must be getting to my eyesight.

  thanks again -- sounds fabulous too.

  NP The Ghost Of Tom Joad
  
  

  ---

  • Re: Got it solved - KevinC 19:43:58 04/06/07 (0)
    In Reply to: Got it solved posted by Noam on April 6, 2007 at 18:54:58:

    These days I'm never too proud to pull out the magnifying glass and check the solder joints. Good catch!
    
    Kevin Carter
    K&K Audio
    www.kandkaudio.com
    
    

    ---
• Re: Major hum on LL9206 - Noam 09:02:55 04/06/07 (0)
  In Reply to: Re: Major hum on LL9206 posted by KevinC on April 6, 2007 at 06:10:44:

  Thanks Kevin-- that worked, hum is gone.

  BUT.... no sound. I've tried all the usual culprits; reheated the solder joints, swapped interconnects, switched the pinouts on the DL103, the best I get is a very low gain signal out of one channel. Low as if there were no step-up. :-(
  
  

  ---

Post a Followup: