Question about Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

Blown fuse and replaced it and burned the amp

I tryed to turn on the amp and it wont cause the fuse was blown. replaced it with the same fuse 250v 6.3A and turn it on again and a burn smell came out of it. i turned it of, cheked the fuse, the fuse was ok but the unit wasnt worknig

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Behringer Master
  • 5,603 Answers

BIG problem! You should NOT have replaced the fuse as additional damage has been done. I repaired a PMP5000 and I can tell you likely what you will find: The smoke and smell came from two power resistors that are part of the soft start circuit that now are toast. You will likely find several components in the main portion of the power supply that are toast. These will include transistors, resistors, diodes, and probably the small 8 pin switching regulator chip. There is a small power supply that comes on first which enables a relay that shorts out those soft start resistors AFTER the power amplifier BALANCES and normalizes.
The unit I repaired had severe damage due to arc-over at one power amp section. Three power transistors were destroyed there and board traces and charring had to be handled in that section.
The repaired unit had to be brought up with a light bulb in series with the line power cord to prevent further damage until all bad parts were discovered and repaired. You will need to take the unit to a shop that is expperienced with the product. The repair cost MAY be pretty high.

Posted on Jul 28, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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...

3 Answers

Amp has power ,is getting signal , meter moves when I hit the strings of the bass. but no sound coming out of either cab. ran a line out and it works that way ,


Hi,

Looks like the power module went out, could be either LM3886T Power IC or Mosfet Module But certainly is in the output stage where your problem is, hope this helps to troubleshoot the issue at least...

Nov 03, 2013 | Behringer Bx4500h Ultrabass 450w Bass...

1 Answer

How can you tell if a fuse is blown on a XR 8600 power amp by peavey?


The fuse is probably placed near the power cable entrance in the power amp.
Pick it up from it's placing dock and look for the wire inside. If the wire is whole, the fuze is fine, however, if the wire inside the fuze is missing or burned, the fuze needs to be replaced.

Jan 27, 2013 | Peavey Xr 8600 8 Channel Powered Mixer

1 Answer

I got a Marshall MG100HDFX for free from a friend stating it was blown. I asked how this happened and he said that one of his friends plugged in another speaker or amp into the second speaker input in the...


The power amp section has blown parts. You will likely find they use a chip like the TDA7293 as the power amp output and it will be blown, shorted causing the fuse to blow. These cost $6 from Digikey.com. Find a competent tech to replace it and use heat sink compound. Verify the part before ordering one. They come with leads bent either way so make sure you get the one with a matching suffix letter. When firing up after repair, put a 60 watt light bulb in series with the hot power lead to act as a current limiter... saves blowing fuses if there is another problem.

Jun 21, 2011 | Marshall MG100HDFX 100-Watt Amplifier Head

1 Answer

Amp is LH500 set up in recording studio ran just fine for about 1hr then just died. Found blown l10at 250v (external fuse) replaced and instantly blows again. Used the amp for 2month US tour in support of...


The amp has likely got a shorted output section or a shorted component in the power supply. Unfrtunately the previous is the most likely AND EXPENSIVE to repair.

Apr 22, 2011 | Hartke Lh1000 Bass Amp Head 1100 Watts...

1 Answer

My amp, was working fine last night, it wont turn on, and i tried switching guitar, cables, even power supplys and still wont turn on, i heard a pop last time i used my amp, and then the signal was lost...


The unit will require repair and if you are not adept at electronics, you will need to take it to a shop. Likely there is failure in the power supply or amplifier that has blown the fuse. Replacing the fuse WITHOUT repairing the cause MAY do additional damage.

Dec 28, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

I am no longer able to turn on my amp. I was running a bass head through it a few months ago, and havent used it since. Now the amp wont turn on at all. I have tried turning the master volume down to 0,...


probolly all you did was run a head into another amp and just caused your marshall to overheat/overpower and blew your output transistor. i you drop the chassis out and look at the chip on the heatsink is it blown? also check all internal and external fuses.

Nov 24, 2010 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

I need help on changing a fuse in PMP3000. The mixer went out on us one day, so I hooked it into an amp that we had. It works good as an unpowered mixer, but cannot get it to work as a powered mixer. I...


No, that is NOT what the problem is.

The fuse protects the power supply. The power amps have failed. The usual cause is an arc between layers of the multi-layer circuit board. The labor to repair the power amp module is extensive. I have repaired several.

You can find new amp modules and I would purchase a new one and drop into your unit. The amp module is an HCA2400.

There is probably $15 of parts blown in each side of the power amp and it takes about 6 hours to repair. One has to grind out the burned area (internal layers not necessarily visible on surface) and re-insulate and then install jumper wires to replace those taken out.

Each side of the amp will likely take out 3 switching MOSFET transistors and often a Zener diode. Sometimes a low resistance metering resistor will be fried with smoky residue underneath the board. When this happens two small surface mounted resistors will be blown open. Great care has to be taken when insulating the board damage and replacement of the blown circuit traces.

You can find HCA2400 power amp module replacements for about $175 online.

Use of the unit as an unpowered mixer is a bit dangerous as if arc re-establishes it can fry the power supply taking out two very expensive IGBT's and many other components. If the mixer still works, then your whole power supply is still OK.

Sep 09, 2010 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

No Power at all. Fuse blown-Burn smell from fan area.


You did a lot of damage, and replacing the fuse and trying it has caused much more.

There will be about seven blown parts on the amp and a dozen on the power supply. To give you an idea of the extent, the WHOLESALE parts cost is roughly $50, including the main power supply switchers IGBT's which cost nearly $20 for the pair by themselves.

I have repaired several of these and the larger cousin the PMP5000. It is a lot of skilled work to repair these.

The cause is a marginal insulation between layers of the multi-layer amplifier board. Usually the rearmost amp arcs between the layers. This fries three big switching transistors followed sometimes by a metering resistor and two small surface mounted transistors. A zener diode often goes. The cancer and burned area has to be ground out with a dental drill and new wire replaces the blown circuit traces.

If you are under warranty, take the unit for replacement.

The thing that can arc the amp is if speaker leads are marginal or get pulled out while under power. Excessive volume, especially pulses at high level can break down the insulaton causing the arc and failure. The black smoke is likely from the metering resistor.

Jul 30, 2010 | Behringer Pmp3000 16 Channel Audio Mixer

2 Answers

The amp just turned off and won't come back on. fuse blown?


If you can see where the power wiring comes into the amp there has to be a fuse in there somewhere as the fuse is designed to cutoff all power when overloaded

Mar 24, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

Not finding what you are looking for?
Behringer Pmp3000 16 Channel Audio Mixer Logo

334 people viewed this question

Ask a Question

Usually answered in minutes!

Top Behringer Music Experts

Matthew Spark
Matthew Spark

Level 3 Expert

1066 Answers

Ben Armstrong

Level 2 Expert

332 Answers

Jim Goldsmith
Jim Goldsmith

Level 3 Expert

1869 Answers

Are you a Behringer Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...