pjchandonnet Posted November 26, 2018 Share Posted November 26, 2018 Anyone experience noise coming from the left (mono) line-out jack of the PX-5S ? Sounds like a ground hum. Always there, regardless of what room/location I'm in so I don't think it has anything to do with the power connection. This is not related to the known USB ground loop problem either... since I get this even with no USB connected. Frustrating since I need a mono out. The right line-out jack has no noise, only the left (mono). Nothing else is connected except for a foot pedal and power. Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted November 27, 2018 Share Posted November 27, 2018 I've never heard of one doing that before. What is connected to the line outs? Mixer? Powered speakers? Audio interface? Computer? Does it make that sound when only headphones are connected directly to the keyboard? Quote Link to comment Share on other sites More sharing options...
pjchandonnet Posted November 28, 2018 Author Share Posted November 28, 2018 I have it connected to a Focusrite interface that goes to two powered monitors.. Doesn't matter if a computer is actually connected to the interface... I hear noise only when outputting from the Left line-out. If I switch the cable simply to the right line-out the noise goes away. I haven't tried plugging-in headphones to the Line-out... I'll experiment with headphones later today or tomorrow... Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 28, 2018 Share Posted November 28, 2018 Look at the 1/4" plug (male connector). Try a 1/4" with a different shape if you have one. Since the left is summing both left and right signals for mono (I guess), there could be something in the way the plug contacts the jack inside. Might sound silly, but I have a sustain pedal that will not work with one of my PX's and will with the others becaue (I deduced) of the shape of the 1/4" mono connector which looks slightly different compared to my other pedals. Still not sure how that works, but my other sustain pedals work, and I noticed there just a slight change in the shape of the tip. And the sleeve might be slightly diferent- not deep enough, or too deep when inserted which can interfere with the contacts between the lseeve and tip connectors inside he jack. Or could be a hairball stuck in the jack (only kidding I am Jokeyman). Quote Link to comment Share on other sites More sharing options...
pjchandonnet Posted November 28, 2018 Author Share Posted November 28, 2018 Thank guys for the suggestions. It turned out to be an easy fix... Even though nothing was visibly inside the jack I gave it a good burst of compressed air and that seems to have taken care of the problem. 2 Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 28, 2018 Share Posted November 28, 2018 Thought so-hairball! Glad it was an easy one. Quote Link to comment Share on other sites More sharing options...
Joe Muscara Posted November 29, 2018 Share Posted November 29, 2018 15 hours ago, Jokeyman123 said: Thought so-hairball! Glad it was an easy one. Ack! Tbbbt! Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 29, 2018 Share Posted November 29, 2018 Ahhhhh! Another fan! I seriously have to keep my keys covered in the house or 3 cats will crawl all over them-I have seen the pawprints. 4 cats if you count Bill. He uses his feet-too much drinking from the toilet bowl crippled his hands a bit. Not sure why. I think the toilet lid did it but he ain't talking.... 1 Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 29, 2018 Share Posted November 29, 2018 Sorry, off topic....will remove if this is inappropriate. Maybe not. Quote Link to comment Share on other sites More sharing options...
mike71 Posted November 29, 2018 Share Posted November 29, 2018 34 minutes ago, Jokeyman123 said: Ahhhhh! Another fan! I seriously have to keep my keys covered in the house or 3 cats will crawl all over them-I have seen the pawprints I have solved this simply with some scrap cloth bought in an open air market and a spare tablecloth. If you don't mind that one is a dark red velevet cloth with a fake medieval pattern and latin phrases written in fraktur and the other is a red and white cloth wit tiny flowers, works flawlessly. I think that the main use of a cloth is blocking dirt to enter in the keyboard, because it will make the keyboard act strange, like in this case. A buzzing sound could be easily generated by a missing ground contact caused by some speckle or other dirt. If the amplifier has an high input impedance you can add a capacitor in series, but most of the audio signal or the video signal will pass, but without DC coupling noise is caught by the wire. About the photo... I will not make any jokes about Cat Power and Cat Stevens, promise! Quote Link to comment Share on other sites More sharing options...
pjchandonnet Posted November 30, 2018 Author Share Posted November 30, 2018 My wife and I have 3 cats ourselves. We always keep a water resistant cover over the Yamaha keyboard we keep in the house. So far so good. As far as my Casio and other more professional music equipment, I keep that in a separate little heated shed (my "man-cave"), so this problem wasn't due to our furry children. No, somehow something got into that jack while lugging the keyboard back and forth for practicing with other band members. Quote Link to comment Share on other sites More sharing options...
Yorgos Posted December 20, 2018 Share Posted December 20, 2018 On 11/28/2018 at 10:26 PM, pjchandonnet said: Thank guys for the suggestions. It turned out to be an easy fix... Even though nothing was visibly inside the jack I gave it a good burst of compressed air and that seems to have taken care of the problem. On 11/28/2018 at 10:26 PM, pjchandonnet said: Thank guys for the suggestions. It turned out to be an easy fix... Even though nothing was visibly inside the jack I gave it a good burst of compressed air and that seems to have taken care of the problem. I have the same exact problem. I have tried all sorts of connections from direct out to self powered monitor(s) to a (passively) D.I.ed balanced line. I have noticed also a squeaky digital noise when scrolling through any content in the data editor as the page refreshes. Always only from the left (mono) output Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted December 20, 2018 Share Posted December 20, 2018 44 minutes ago, Yorgos said: have noticed also a squeaky digital noise when scrolling through any content in the data editor as the page refreshes. That's the sign of USB ground loop noise. Try disconnecting the USB MIDI cable. Quote Link to comment Share on other sites More sharing options...
Yorgos Posted December 20, 2018 Share Posted December 20, 2018 Thank you. Is there any known way to take care of this problem ? Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted December 20, 2018 Share Posted December 20, 2018 11 minutes ago, Yorgos said: Thank you. Is there any known way to take care of this problem ? Probably the simplest solution is to use the DIN MIDI connection instead of USB if you have a MIDI to USB adapter of some type. Quote Link to comment Share on other sites More sharing options...
sandandstars Posted September 17, 2023 Share Posted September 17, 2023 I had the same problem. After reading one of the replies I realised I was using a stereo 1/4 inch jack plug / lead. Changed it to a mono plug / lead and problem solved :) 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.