Got my MPC60! It's humming though! Maybe a ground loop?

Hey people, I got my MPC60 a few weeks back, just been getting to grips with chopping on it and sequencing, you've gotta love the 12-bit sound!

However, I've got a slight problem though, when I plug it into my Technics DJ mixer, I get a nasty buzz/humming sound... I think it could be a ground loop hum.

So I went to Maplins and they suggested ferrite cores or something, I used them on my power chord and it didn't solve jack so I took 'em back. I even tried using a different mains socket. I'm using a power transformer UK 240V to US 110V I think.

Anyone know what I can do? Do you think I'll need a new transformer or...? It's really irritating me cuz I just wanna bang out some beats and start my next project.

Thanks in advance!

post the cable you use to connect the MPC to the mixer.

peace

It's one of these cables.

http://www.long-mcquade.com/files/1651/lg_A__PR.jpg

Sorry I don't know how to put images on the page. Maybe there is a tutorial of how to post 'em on here.

I use 8 mono cables from the 8 outputs going to a Mackie 1220 Onyx when I'm back at home and have the space to do so. I still had that buzz/hum.

Again, cheers in advance.

you could have a loose output on the back like me, try wiggling it around and if thats not the case, try the 8 outs

you could have a loose output on the back like me, try wiggling it around and if thats not the case, try the 8 outs

Alright man, I'll check that out now, hopefully I don't get electrocuted. I'll post back in a minute.

Nah, just checked it, gave it a bit of a wiggle around plus I checked the 8 outputs...

So frustrating!

Damn, so I've given it a few weeks and tried all of these suggestions.

In the end I decided to replace the power adaptor. I bought the same model UK 230V to US 110V 100W transformer from Maplin Electronics but it still hums!

Perhaps it is the actual model of transformer? What if I bought a larger one, say 200W? Although 100W should be adequate since the 60 outputs at 32W I think and a larger wattage will cost considerably more.

Perhaps it is internal and something is loose in the machine? I don't wanna mess around inside the 60 though, I ain't no electrician!

Can anyone please help me out? I'm badly frustrated, I'm almost ripping my facking hair out!

Anyone?

Still no one?

your turntable needs to be hooked up to a ground and also the table made need phono pre amps before...go from Turntbale to djmixer.connect the ground and from there to your mpc

@markosmo: Cheers for the input, however, I have my turntable connected with a ground wire to the mixer, it's as soon as the MPC60 is plugged in that any buzz or hum occurs, rattling my speakers!

I'm gonna pick up some balanced TRS cables and see if it still occurs... I read that they can help stop interference/noise. I even opened the 60 up and tightened loose screws to see if that would help the problem.

I wonder if it's possible that a new screen would get rid of the hum? Mine has started to go a wee bit dim and lets out that infamous whine which can be heard slightly through the headphone socket at full volume!

I'm determined to figure this shit out, it does my nut in! When/if I figure it out, I'll put something up on here explaining how I've sorted it out to maybe help future cases!

If anyone sees this and can perhaps give some dope input, it'd be real appreciated!

2 things:

1. This was a known problem with the older technics mixers. Are you sampling from and playing back through the mixer? If so, the channel you play back (monitor) through needs to be turned all the way down while you are sampling, or you'll get feedback in your sample.

2. I've only used the 60 a few times, and that was a few years ago, but on the 3000 in the sample screen, there is a setting top right hand corner which says MONITOR: ON/OFF. Try switching that to OFF while sampling and see how you go.

Peace.