Question about Behringer Ultratone K3000fx 300w Keyboard Amplifier New

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K3000FX SCEMATIC QUIT WORKING ELECTRIC SMELL

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You have a fried circuit maybe or a fried power supply

Posted on Jan 06, 2013

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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

Where can I get a Type T 6.3 AH 250V fuse for a K3000FX 300Watt Keyboard Amp?


Start with a 5 amp fuse and see if that holds. If it doesn't go to 10 amp. If that pops, you will have a power supply or amplifier fault. Good luck

Aug 12, 2014 | 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

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...

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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...

2 Answers

Does anybody have a schematic for the Behringer LPA1300 power amp section used in the K3000FX keyboard combo? Are the output devices supposed to be the ground path for the power amp. (there are no...


Look at this one:

http://elektrotanya.com/behringer_k1800fx_sch.pdf/download.html

This is for the 1800 however...

Often they will just double up with two amps, one inverted, and use in bridged mode.at the higher power in what we call an "H" arrangement.

Since the drains are tied together, the heatsinks MIGHT be hot output level.

Feb 05, 2011 | Behringer Ultratone K3000fx 300w Keyboard...

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