Help With Potentiometer

I have had a slight center image shift to the left for some time. My listening room has been a such a mess that until now that I did not concern myself with it.

With music and SDA's I was not 100% sure that it is shifted so I found an old Maxell test cd with test tones to confirm. I also used my grandson to confirm that it is not my ears.

So I am on a quest to find the root cause. I have not finished the search but after talking to Musical Concepts (they rebuilt my Haflers) one cause could be the volume pot.

Currently it is a Bournes 50k pot.

My question is if turns out to be the volume pot what would you recommend as a replacement.

Comments

  • F1nutF1nut Posts: 37,312
    Very high quality pots are bloody expensive, so take a look at what's available and fits your budget.
  • txcoastal1txcoastal1 Posts: 7,408
    I also notice there is a balance POT on the Hafler DH-110 Preamp
  • machonemachone Posts: 693
    Yeah,

    I plugged the SA8005 directly into the amp and ran the test disc. Everything seemed centered. Crossed the IC'S and double checked. All good.

    Put the preamp back in the loop and now everything seems centered!

    Must have been an oxidized cable connections?
  • jdjohnjdjohn Posts: 149
    As preventative maintenance for the future, you might consider spraying DeOxit on those connections AND inside that volume pot...unless it's totally sealed. Might as well hit the inside of the balance pot, tone controls, and rotary switches while in there, along with anything else that has contacts.
  • machonemachone Posts: 693
    jdjohn wrote: »
    As preventative maintenance for the future, you might consider spraying DeOxit on those connections AND inside that volume pot...unless it's totally sealed. Might as well hit the inside of the balance pot, tone controls, and rotary switches while in there, along with anything else that has contacts.

    I plan to open it this weekend and do just that.
    Also there are some ribbon connectors that need to be addressed.
    Last night the image was shifted again!
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