An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: I am getting a slight buzzing noise in left channel...
This could be due to a faulty cable, which doesn't have
proper grounding or the ground wire got cut somehow. Try replacing the cables with similar ones, if you can. If this is not possible,
test your headphones on a friend's computer. or use a speaker to the same device ou are connecting your headphones now and see if the problem is the same.
You may have some power wires run along side your headphone wire. If headphone wires and power wires are routed the same way the headphone's whatever channel is bound like that will pick up electrical interference.
Grounding is the problem. Your headphone needs to have proper grounding
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Check first it is on all functions. If it is then it will be a power amp fault. As the unit has two channels both of which are identical to each other it's possible to check and compare each channel. So in your case the left hand channel parts are your guide to what is right. Compare first visually the two channels. If something looks burnt or damaged or wrong in the right, but it isn't in the left then you will have found the cause.
If everything looks OK, then carry out voltage tests, if you have a meter. Or a sound test. This involves touching with an insulated screwdriver the two channels while the unit is on. Never touch any part that there is only one of. Unless it's an IC and has two channels going in it. You will hear a buzz if it is working or produces sound. Again a good buzz in the left should happen in the same place as the right. When it's load at one point of a part but weak on the other, when it should be a loud buzz then you have found the faulty part.
Please however check first that it's not the headphone socket that is causing the problem. Sometimes the sound will be OK on headphones but not on the speakers. The socket the headphones fit into can cause this.
It is a definite pickup grounding issue causing hum/"buzz" which diminishes when touching strings. Check the impedance of cable jack inputs and cable which should be 1/4"mono input/output jacks) . A personal preference but effective is to NOT run guitar direct into mixer but through an external amp w/ a headphone out jack . Noise gating/preamp filter also will help eliminate the "buzz"/noise from pickups. It is unfortunately the nature of the "electro-magnetic" beast when it comes to electric guitar pickups .Hope this helps.
Hum is a constant low-frequency buzz, usually at about 60 Hz or 120 Hz, which results from voltage differences between true "ground" (what you'd get shoving a copper pipe into the ground) and the electrical "ground" of your receiver's chassis When this voltage differential exists, it's called a "ground loop," and the hum it produces is darned annoying. You'll hear the hum mainly from the subwoofer because it's a low-frequency noise, you will need a ground loop insulator they are about $20 at any electronic store
Disconnect the wires to the cartridge on the turntable that has trouble. Then put your headphones and with it powered up. Touch each cable end of the loose wires of the cartridge one at a time with your finger. On two you should hear a buzz, one on each channel. On the other two wires you might get a slight buzz or a crackle, but don't expect anything. If you get a buzz on both channels. Then the cartridge is faulty. If you do not get a buzz on either channel then there is something wrong either inside the deck or the wiring to that deck.
There is a problem is the sound card. The HP laptop should be still under warranty, take it to the supplier to get it repaired under warranty. If you try to fix it yourself you most likely will void your warranty.
try it with nothing plugged in to the inputs, if there is no noise. most likely its the turntable, cd player, or whatever the input is is the problem. or try plugging the mixer into a different area of the house/room. its like if you were to put your cell phone by a mixer, or speakers.