I am using a Behringer Xenyx 502 mixer and my mic (Sterling Audio ST51) is giving me a buzzing on playback. But when I run other devices through the inputs such as an MP3 player through all the inputs including the CD/TAPE rca inputs there is no buzzing on play back. I am in desperate need of help behringer's tech support is no help at all and music stores just keep trying to get me to buy more stuff.
Get yourself anti-static spray and spray over the connector before inserting into the jack, most times its dust or static buildup which causes that buzzing sound and in other times replace your mic
ok just to clarify some other things really quick. Even with everything disconnected from the mixer and just the mixer connected to my PC i still get this buzzing sound. I also tried in my laptop, and Both my desktops and it still has the buzz on it. I made this video showing exactly whats going onhttp://www.youtube.com/watch?v=EgplWTpgD...
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SOURCE: Behringer XENYX 1622FX, won't power on. Phantom power works(?)
After reviewing the schematic, I don't understand how the Phantom power can REMAIN on with the power switch off... this CANNOT occur except for what energy is left in the 48 volt supply filter cap... This might last for minutes after the fuse went... UNLESS you have devices connected which are backfeeding the 48 volts. (which would be a disaster)
The 48 volts, +/- 12 volts and +/- 15 volts and the +5 volts ALL come from the SAME switching power supply. I suspect one of the filter caps went or the primary switching regulator a TDP245Y chip.
You should ONLY work on the line side of this using an ISOLATION transformer since the line side has lethal voltages.
To do testing, one replaces the fuse and puts a 60 Watt light bulb in series with the hot side of the inout line. The lamp "acts" as a resetable fuse and limits the current for testing. When all is well again, the lamp will remain out with the power flowing through it.
The D1 diode bridge and C7 input rectifier and filter are first things to check. You can do those with an ohmmeter.
I will caution you to ALWAYS power any and all equipment from the SAME power source. Plugging in devices from across the room will set up ground loops and any ground fault will fry equipment.
SOURCE: LEVEL POT ON A BEHRINGER EURORACK MX 602A-BAD
It appears that both these use a 50K pot in the identical circuit and it is UNLIKELY they re-engineered very much so it is likely they use the same pot.
Behringer parts service should be able to tell you.
SOURCE: type pf op amp in a Behringer XENYX 1204USB Mixer
Behringer uses 4580's in appropriate packaging everywhere. There are 339 comparators for the level indicator area.
The Mackies uses both NJM2068 and NJM4560M
The 2068' are used in most of the low noise areas and the 4560 is used in the 75Hz high pass filter for example.
SOURCE: how do i hook up a powered moniter to the
hook it up to one of the aux output sends (1 or 2), and use the corresponding aux send knob per channel to put each channel necesarry into the monitor signal.
SOURCE: I have the Behringer Xenyx
Is the sound a low frequency buzz or high frequency hiss? With all the input level controls at the minimum position and the output level controls at the maximum is the sound audible?
Waiting clarification, don't hesitate to post.
Thanks and regards
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Stelios
direct fixya link: http://www.fixya.com/users/technical114
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ok just to clarify some other things really quick. Even with everything disconnected from the mixer and just the mixer connected to my PC i still get this buzzing sound. I also tried in my laptop, and Both my desktops and it still has the buzz on it. I made this video showing exactly whats going onhttp://www.youtube.com/watch?v=EgplWTpgD...
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