Question about Behringer Ultratone K3000fx 300w Keyboard Amplifier New

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I have an ultra tone k3000fx. The sub is not playing any sound, however when I turn it off for a while and turn it back on it will work for a minute or two then cut off. Can anyone think of what may be causing this?

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Suddenly stops working and have to wait for a few minutes for it to work again.


Probably a component in the power supply is overheating, You need to take it to the repair shop.

Apr 26, 2015 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

Quits working, but a very loud note or sound will break through and will start working for a while longer.. Like a squelch on a cb radio.


Sounds like a dry joint, if you're brave it may be worth going inside and flexing things to see if you can find it and then fix it if you're any good soldering.

Jan 08, 2014 | Behringer Ultratone K3000FX Keyboard...

1 Answer

No woofer sound from my K3000FX. Verified all cables and settings correct- but sound only comes from tweeter. What could it be?


Step 1:

Hate to say it, but possibly a blown speaker. To check this, do the following -


Step 2:

Insert headphones into jack to verify for sound there.

Step 3:

Unplug unit and open rear panel to reveal speakers.

Step 4:

Remove leads from woofer.

Step 5:

Using a multimeter, set to OHM (horseshoe) to lowest setting.

Step 6:

Apply red(+) and black(-) to speaker leads. Meter should read at least 4-8 ohms of resistance.

Step 7:

If no reading, then voice coil is blown.

Step 8:

If no meter available to use, the use a 9 volt battery by applying direct connection to speaker leads in an off-and-on fashion - You should hear a "click" sound come from speaker. If no "click," then speaker is blown.

Step 9:

If click is heard, and resistance on meter is correct, then the amp circuitry leading to the woofer may be blown = repair needed.

Jan 18, 2013 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

K3000FX SCEMATIC


you have a fried circuit maybe or a fried power supply

Jan 05, 2013 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

Behringer K3000FX Ultratone Keyboard Amplifier from day 1 has had a slight buzz


For a start , check headphones out.


• if it don't work , check power supply of the preamps.


• If it is OK, could probably the main amp have fail.

But check the main volume .

Sep 11, 2012 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

Will an Eminence Beta 15A speaker (`5", 300w, 8 ohm) fit/work in the k3000fx? If so, will there be a trade-off or consequence of performance? I already own the Beta speaker, and have a chance to...


It ill probably work, however I have had to do body-and-fender work on a speaker cabinet where the new frame would not quite set in the existing hole in the mounting board. The Eminence speakers are supposed to be good... are you sure the Behringer amp is OK? The K1800FX uses a conventional linear amp... not sure about the K3000fx... The only possible problem I could see is that the original speaker (Bugera 15 inch)may have a different response and the tweeter may not match too well. You can probably adapt using th EQ should this be the case.

Sep 01, 2011 | Behringer Ultratone K3000FX Keyboard...

1 Answer

My ultratone k3000fx does'nt sound anymore. What can be the problem ? Thank you.


Here is your service schematic:

http://elektrotanya.com/behringer_k1800fx.zip/download.html

Scroll down to "Get Manual" and click on it to download. The file is compressed and the preamp/FX is on one, the power amp on a second, and a trivial tweeter crossover on the third... I did not see the power supply. Check speaker for continuity of voice coil. Else it is likely a power amp failure.

Jun 08, 2011 | Behringer K3000fx 300w 4-channel PA...

1 Answer

I own a Behringer Ultratone K3000fx 300 watt PA/Keyboard Amp that stopped putting sound out. The amp is getting power just not putting out any sound at all. Just wondering if this is an easy fix or I...


This is most LIKELY an electronic problem... possibly in the final power amp. Repair may be a simple failed component or a mass number that fail like a stack of dominos. Take it to a shop for repair.

Apr 16, 2011 | Behringer Ultratone K3000fx 300w Keyboard...

1 Answer

I could not able to select the tones.It needs to be reset to the factory level.Please help me to reset the Keyboard to the original status.?


Sometimes companies use the same sequence for all their synths...

Here is one to try:
How do you reset casio keyboard lk-60?
This is how. 'Turn keyboard of for 5 seconds then turn it bak on and play"e-flat,g-flat,e-flat,b-flat,g-flat,e-flat,g-flat" then turn keyboard of and unplug and wait 5 minutes then plug back in in,...
Note: It is NOT clear if you need to hold the notes down as you play them or press and release.

Here is another for Casio:
From the FILE menu, select INITIALIZE to select the sub menu. Select the SYSTEM option to return the keyboard to its factory settings. Keep in mind that this operation will delete anything that is stored in the keyboard memory. When you see the InitSys? on the screen, select YES. I hope this helps......

I could not find anything specific to the 810.

If these don't work, then the way to reload is via the MIDI port which will accept Sysex commands and data. You can probably find a data dump online for this at the Casio site..
You will of course need to have a MIDI port on your PC.

Sep 16, 2010 | Casio CTK810 61 Key Keyboard

1 Answer

I have a crate fxt 120. I 'll be playing in the #2 overdrive channel and it will automatically fail and go to a clean sound. Although it is not entirely clean. It sounds like 2 sounds combined. A loud...


A possible problem MIGHT be marginal switch contacts on the external foot controller cable. If you are not using the foot pedal, these contacts must maintain contact to keep the same channel selected.

Sep 15, 2010 | Crate Music

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