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 DJing Discussion
What do these scopes mean
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What do these scopes mean

illmatic 8:13 PM - 4 September, 2010
turned on the 57 today and this is what i get

loud humming,tt's are properly grounded,does it with and without needles and regular vinyl also sounds like garbage

this is perfect since its a long weekend and i have gigs

www.flickr.com
illmatic 8:19 PM - 4 September, 2010
also used different power supplies and usb cables
DouggyFresh 9:09 PM - 4 September, 2010
Strange that both sides are doing it too. I'm wondering if you're not getting a ground loop issue. Maybe your balanced outputs are grounding to a different ground level than your 3 prong outlet.

I would try it with a ground removed power strip (2 prong) and see if it corrects.
illmatic 9:18 PM - 4 September, 2010
No dice,already tried all trouble shooting solutions
DJ Ritmo 12:21 AM - 5 September, 2010
looks like you sl box is not set to phono input but if thats not it im stumped. This happened to me one time and thats what it was
DouggyFresh 12:29 AM - 5 September, 2010
Can you plug in a home CD player with a Serato Control CD to the input and verify it's definitely not your turntables? My friend's put multiple sets of cords on his 1200's over the years.

Also, check this out:

scratchlive.net
DouggyFresh 12:29 AM - 5 September, 2010
Doh this one:

scratchlive.net
illmatic 2:38 AM - 5 September, 2010
it's a 57 and the dip switches are set correctly
illmatic 5:15 AM - 5 September, 2010
ok,so cd players work okay,internally grounded turntables and they work,used my turntables on a different mixer and they work

problem isolated to a ground loop on the 57,how do i get my mixer back to Rane?
silentpartner 11:29 PM - 7 September, 2010
seems like it's a dirty tonearm connection. Do you lick your needles alot to get a good connection? Take a light and look inside the connection to the arm. If it's fairly dirty I'd start there. I've seen these scopes and most of the times they just need a good cleaning.

good luck