Hi I'm having some problems with my digital piano "RCA" audio output. When I hook the Audio outs to speakers or my recorder I get a humming sound or distortion.
My headphone jack works find and the speakers work find just the "RCA" audio output I'm having problem with.
 
Thanks

Hmm, are those RCA audio outs line-level, or are they intended to go directly to
speakers? The distinction is very important, because speaker level outputs are too much for an audio line-level input, such as a recorder or an amplifier requires.

RCA (also called "phono") connections are unbalanced so subject to noise/hum pickup if poorly shielded cables are used for connections. So you might try different cables to see if that helps.
 
Another thing is that the jacks can get dirty (oxidized) and the cable plug outer "tabs" (which connect to the shield) can become spread apart and no longer make good contact with the jacks, so check those. Squeezing the cable plug tabs a bit by hand and rotating the cable plugs back and forth a bit on the jacks can sometimes restore good contact.

Thanks for the advice. Hmm now I think about it maybe they are made for speakers or amp. 
When I look on line how record digital piano "not that I don't know how" I was searching for my problem.
But any way in the article the person states using the headphone jacks to record not the audio phonos outs. 
So you could have very good point there. I do notice little hum from the speakers but that could be due to
me having the volume up to high and there old "Samsung media 3a" Had them for about umm 3 - 4 maybe more years.
I bought them when Charle Murphy was working at sweetwater "if anybody knows him" lol
 
How would I know if there dirty? I try RCA to 1/4 monster cables I think. and hook them into my tascam
but still there humming I even tried the computer. 
 
I do notice if I used the headphone jacks there no humming.
 
Thanks

SuperG I look in the manual and yes the line out I quote "are for pa, amps and speakers" Thanks
 
 

Hmm, 
 
How about posting the make and model of your digital piano - we should be able to determine what we're dealing with from the specs, which we can google up.

Hmm, 
 
How about posting the make and model of your digital piano - we should be able to determine what we're dealing with from the specs, which we can google up.

Williams Symphony digital piano
http://www.williamspianos.com/products/symphony.cfm
 

I do have another question but about the tascam dr 07 mk2.
I'm using it as a recorder "love it" but here the problem.
If I use the built in mics I pick up lot of the clumping of the piano keys.
If I hook the headphone jack into it I would have to unplug the headphone jack for class twice a week. And that could break the speakers of the piano I had tv that speakers broke the same way. ""funny part I have heard the input on the tascam is made for Ext. Mic not instrument"". But the upside if I use the built in mics and have the tascam in the distance I don't pick up the clumping of the keys. So maybe it just adjusting the tascam
like maybe I have the tascam mics face up or away from me.
 
My only other option is to go back to an audio interface and use my Music creator 3 along with my finale. But that opens up another entire problem I tried use my Ua 1g audio interface and I notice my MC3 was picking up some than on the meter even without playing the piano unless I turned the piano done 100%. The cord I was using was 1/4 RCA cable hook into my piano headphones and the RCA 1/3 hook into the input of my UA 1G so maybe that was the problem I don't know. 
Thanks

Could this help? 
http://www.fullcompass.com/product/433097.html
 
Right now I've got my tascam sitting piano bench little under the piano. And i got the low cut set at 120 hz.
 
Thanks