20 Most Recent Behringer Ultratone K3000fx 300w Keyboard Amplifier New - Page 7 Questions & Answers

Short circuited component/s at its main board. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

You should be able to unplug a mic from the xlr input with the unit on with no problem. I beleive the problem is that the xlr input jack has one or more legs broken off the board. If you dsassemble the board and resolder the three legs to the board you'll probably fix the problem.

Please see my previous answer on this subject. It's best not to repost multiple times. The questions don't post immediatly so it may take a while for them to show up on the site.

If it come back on after shutting down, you have a part overheatinga and then working again after it's cooled off, rather than "blown. You will need to take it in for service.

The most common problem would be the headphone cable, particularly at the plug end. If they work fine on other systems, the next place to check is for a dirty headphone jack. Next a dirty/defective headphout out pot or cold solder joints where the pot or jack connects to the circuit board.

Check out these manuals: PMP2000 http://www.behringer.com/assets/pmp2000_p0611_m_en.pdf PMH880S http://www.behringer.com/assets/PMH880S_P0232_M_EN.pdf

You need to take it to the repair shop.

There are a few images and some info online, although nothing very conclusive? I would try contacting the company, I do amplifier repair and deal with company's daily, most of the time they are more than helpful... http://www.behringer.com/EN/Support/index.aspx

I would contact a service center here Find Service Center

Here is a link to the schematic BEHRINGER MX3282 SCH Service Manual free download schematics eeprom repair...

It may be likely that you've blown a fuse. This will require removal of the amplifier unit from the housing. The fuse is a 100-120 V~: 6.3 A H 250 V. You should be able to find this in most places. If the fuse is not blown, then the unit must be sent in for servicing.

Did you turn on the phantom power? Condenser mics need phantom power(unless the have their own battery.)

Go to this site to download your manual. http://www.manualsonline.com

If it is one of the toggle switches on the front then IF you can get it from Behringer then it would likely already be soldered to the board. If you just want the switch try a site like mouser.com and search for toggle switch and then narrow your search from there. Not extremely easy, so contact any electronics service center and they may be able to help you as the switch is an standard off the shelf part. Good luck!

Capacitor and/or fuse has blow.

You'll need to give a lot more information on what is happening and what you are doing to get any help here

It sounds as if the input is too low. what happens if you plug whatever is going into the stereo channels into a pair of mono channels. Or are you taking about the phono stereo tape input? The stereo channels are line level whereas the other channels have both line and mic level inputs, what are you trying to put through the stereo channels? You must make sure the gain switch is set to the -10dB to get the most sensitivity (the mono channels have about -132dB max sensitivity BTW) You probably need a different mixer or possibly a submixer if you are needing more than 4 low level inputs.