Behringer xenyx x2442usb

SOURCE: on a behringer xenyx 2442 mixer there are 3 mute

According to the manual, the mute buttons don't affect the AUX sends. Depending on how you've got it set up, this might be the issue. The block diagram shows how the signals are routed. Or maybe it's just broken. Behringer has a good warranty program.

SOURCE: Behringer Xenyx 1622FX. Power supply has failed,

Suspect a broken circuit trace or broken solder. If they use a 7805 three terminal regulator, check the solder around those pins...
Berhinger does NOT release schematics except to their service facilities... I know... I have tried... I repaair a lot of their stuff and have to trace out the circuits.

Power supply circuits are rather easy except for the switching regulators if they have failed totally.

If only the +5 is dead, you should be only a filter cap and a diode or two away from the problem... Transformer leads and electrolytic leads with their weight are favorite to pull out of solder... On Behringer, often the traces are narrow and can have a crack in them.

SOURCE: I have a problem with my Behringer mixer xenyx

Is the XLR unplugged from the channel when you are using a 1/4 " instrument cable?

SOURCE: Set up audio mixer with PC

You must connect:
the main out of the 1202fx, or the ctrl room out of the 1202fx at your power amplifier's input (if there is one)
the line in 11/12 of the 1202fx at your pc's audio card line out. (for playing back)
the cd/tape out of the 1202fx at your pc's audio card line out. (for recording)
in case of a cd, connect it's line out at line in 5/6 (or 7/8, or 9/10) of 1202fx's
some mic at the mic 1 (or 2 or 3 or 4) of 1202fx.
That's the way you're going to have control for:
the mic level from channel 1 (etc).
cd level from channel 5/6 (etc).
pc playback from channel 11/12.
master speakers from main mix or ctrl room.
All the above connections are not absolute and may vary depending on your needs.
About freeware softwares for audio recording and editing I can suggest you:
Audacity (homepage)
Wavepad sound editor (homepage)

In case of a problem or clarification about the connection or the cables, don't hesitate to post.

Thanks and regards
Please kindly rate this solution
Stelios

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.